Olympians Who Won a Medal at the World Aquatics Championships (2070)

Description

Host cities:

1973 Beograd (Belgrade) (YUG) 31 August-9 September 1973
1975 Cali (COL) 19-27 July 1975
1978 West-Berlin (FRG) 20-28 August 1978
1982 Guayaquil (ECU) 29 July-8 August 1982
1986 Madrid (ESP) 13-23 August 1986
1991 Perth (AUS) 3-13 January 1991
1994 Roma (ITA) 1-11 September 1994
1998 Perth (AUS) 8-17 January 1998
2001 Fukuoka (JPN) 16-29 July 2001
2003 Barcelona (ESP) 12-27 July 2003
2005 Montréal (CAN) 16-31 July 2005
2007 Melbourne (AUS) 18 March-1 April 2007
2009 Roma (ITA) 17 July-2 August 2009
2011 Shanghai (CHN) 16-31 July 2011
2013 Barcelona (ESP) 19 July-4 August 2013
2015 Kazan (RUS) 24 July-9 August 2015
2017 Budapest (HUN) 14-30 July 2017
2019 Gwangju (KOR) 12-28 July 2019

Athlete	Nation(s)	Sport(s)	Era	Notes
Brooke Abel	USA	SWA	2008	0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination
Jennifer Abel	CAN	DIV	2008—2020	0–6–4 2011 Shanghai DIV silver: synchronized springboard, bronze: 3 m springboard; 2013 Barcelona DIV bronze: synchronized springboard; 2015 Kazan DIV silver: synchronized springboard and synchronized springboard (mixed); 2017 Budapest DIV silver: synchronized springboard, bronze: 3 m springboard and synchronized springboard (mixed); 2019 Gwangju DIV silver: synchronized springboard and synchronized springboard (mixed)
Viktor Aboimov	KAZ URS	SWM	1972	0–1–1 1973 Belgrade SWI silver: 4×100 m freestyle relay; 1975 Cali SWI bronze: 4×200 m freestyle relay
Matt Abood	AUS	SWM	2016	1–0–0 2011 Shanghai SWI gold: 4×100 m freestyle relay
Gary Abraham	GBR	SWM	1976—1980	0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay
Inna Abramova	RUS URS	SWM	1988	0–0–1 1982 Guayaquil SWI bronze: 4×100 m medley relay (swam in heats only)
Irina Abysova	RUS	TRI	2008—2012	0–1–0 2001 Fukuoka SWI silver: 10 km open water
Javier Acevedo	CAN	SWM	2014—2020	0–0–2 2017 Budapest SWI bronze: 4×100 m freestyle mixed relay and 4×100 m medley mixed relay (swam in heats only)
Yumi Adachi	JPN	SWA	2012	0–0–2 2019 Gwangju SYN bronze: duet Technical (mixed) and duet Free (mixed)
Cammile Adams	USA	SWM	2012—2016	0–1–0 2015 Kazan SWI silver: 200 m butterfly
Beatrice Adelizzi	ITA	SWA	2008	0–0–1 2009 Roma SYN bronze: solo Free
Becky Adlington	GBR	SWM	2008—2012	1–1–2 2009 Roma SWI bronze: 400 m freestyle and 4×200 m freestyle relay; 2011 Shanghai SWI gold: 800 m freestyle, silver: 400 m freestyle
Nathan Adrian	USA	SWM	2008—2016	10–4–2 2009 Roma SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only); 2011 Shanghai SWI gold: 4×100 m medley relay, bronze: 4×100 m freestyle relay; 2013 Barcelona SWI silver: 4×100 m freestyle relay, bronze: 100 m freestyle; 2015 Kazan SWI gold: 4×100 m medley relay and 4×100 m freestyle mixed relay, silver: 50 m freestyle; 2017 Budapest SWI gold: 4×100 m freestyle relay, 4×100 m medley relay, and 4×100 m freestyle mixed relay, silver: 100 m freestyle; 2019 Gwangju SWI gold: 4×100 m freestyle relay and 4×100 m freestyle mixed relay (swam in heats only), silver: 4×100 m medley relay
Georgios Afroudakis	GRE	WPO	1996—2012	0–0–1 2005 Montréal WAP bronze
Khristos Afroudakis	GRE	WPO	2004—2016	0–0–2 2005 Montréal WAP bronze; 2015 Kazan WAP bronze
Yannick Agnel	FRA	SWM	2012—2016	2–1–0 2011 Shanghai SWI silver: 4×200 m freestyle relay; 2013 Barcelona SWI gold: 200 m freestyle and 4×100 m freestyle relay
Iñaki Aguilar	ESP	WPO	2008—2016	0–1–1 2007 Melbourne WAP bronze; 2009 Rome WAP silver
Jeinkler Aguirre	CUB	DIV	2008—2012	0–0–1 2009 Roma DIV bronze: synchronized platform
Crissy Ahmann-Leighton	USA	SWM	1992	1–0–0 1991 Perth SWI gold: 4×100 m medley relay
Ai Yanhan	CHN	SWM	2016—2020	0–1–0 2017 Budapest SWI silver: 4×200 m freestyle relay
Matteo Aicardi	ITA	WPO	2012—2020	2–0–0 2011 Shanghai WAP gold; 2019 Gwangju WAP gold
Rosaria Aiello	ITA	WPO	2016	0–0–1 2015 Kazan WAP bronze
Aleksey Akatyev	RUS	SWM	1996	2–1–1 1994 Roma SWI bronze: 25 km open water; 1998 Perth SWI gold: 5 km open water and 25 km open water, silver: 5 km open water team
Anatoly Akimov	RUS URS	WPO	1972	0–1–0 1973 Belgrade WAP silver
Vladimir Akimov	RUS URS	WPO	1980	1–0–0 1982 Guayaquil WAP gold
Irina Aksyonova	RUS URS	SWM	1980	0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay
Alberto Alberani Samaritani	ITA	WPO	1968—1980	1–0–1 1975 Cali WAP bronze; 1978 West Berlin WAP gold
María José Alcalá	MEX	COM/DIV	1988—2021	0–0–1 1994 Roma DIV bronze: platform
Vadim Alekseyev	ISR KAZ URS	SWM	1988—1996	0–1–0 1991 Perth SWI silver: 4×100 m medley relay (swam in heats only) (competed for the Soviet Union)
Milan Aleksić	SRB	WPO	2012—2020	2–1–1 2009 Rome WAP gold; 2011 Shanghai WAP silver; 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Lisa Alexander	CAN	SWA	1996	0–3–3 1991 Perth SYN silver: team, bronze: duet; 1994 Roma SYN silver: duet and team, bronze: solo; 2001 Fukuoka SYN bronze: team
Vladimir Aleynik	BLR URS	DIV	1976—1980	0–1–1 1978 West Berlin DIV bronze: platform; 1982 Guayaquil DIV silver: platform
Carmela Allucci	ITA	WPO	2004	2–1–0 1998 Perth WAP gold; 2001 Fukuoka WAP gold; 2003 Barcelona WAP silver
Franziska van Almsick	GER	SWM	1992—2004	2–2–2 1994 Roma SWI gold: 200 m freestyle, silver: 4×200 m freestyle relay, bronze: 100 m freestyle and 4×100 m freestyle relay; 1998 Perth SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay
Therèse Alshammar	SWE	SWM	1996—2016	2–5–1 2001 Fukuoka SWI silver: 50 m freestyle and 50 m butterfly, bronze: 50 m butterfly; 2007 Melbourne SWI gold: 50 m butterfly, silver: 50 m freestyle; 2009 Roma SWI silver: 50 m freestyle; 2011 Shanghai SWI gold: 50 m freestyle, silver: 50 m butterfly
Yevgeny Alyoshin	RUS	SWM	2004	0–1–0 2003 Barcelona SWI silver: 4×100 m medley relay (swam in heats only)
Vladislav Aminov	RUS	SWM	2000	0–0–1 2001 Fukuoka SWI bronze: 4×100 m medley relay
Gail Amundrud	CAN	SWM	1976	0–0–2 1975 Cali SWI bronze: 4×100 m freestyle relay; 1978 West Berlin SWI bronze: 4×100 m freestyle relay
Lolita Ananasova	UKR	SWA	2016	0–0–4 2013 Barcelona SYN bronze: team Technical, team Free, and team Free Routine Combination; 2015 Kazan SYN bronze: duet Free
Alyssa Anderson	USA	SWM	2012	0–1–0 2009 Roma SWI silver: 4×200 m freestyle relay (swam in heats only)
Haley Anderson	USA	OWS	2012—2020	2–2–1 2013 Barcelona SWI gold: 5 km open water; 2015 Kazan SWI gold: 5 km open water; 2017 Budapest SWI silver: 4×1.25 km open water relay; 2019 Gwangju SWI silver: 10 km open water, bronze: 4×1.25 km open water relay
Jakob Andkjær	DEN	SWM	2008	0–0–1 2007 Melbourne SWI bronze: 50 m butterfly
Ángel Luis Andreo	ESP	WPO	2004—2008	1–0–1 2001 Fukuoka WAP gold; 2007 Melbourne WAP bronze
Alberto Angelini	ITA	WPO	1996—2008	0–1–0 2003 Barcelona WAP silver
Hannelore Anke	GDR	SWM	1972—1976	3–1–0 1973 Belgrade SWI silver: 200 m breaststroke; 1975 Cali SWI gold: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay
Dóra Antal	HUN	WPO	2012—2016	0–0–1 2013 Barcelona WAP bronze
Stavroula Antonakou	GRE	WPO	2008	1–0–0 2011 Shanghai WAP gold
Aleksandra Antonova	RUS	WPO	2012	0–0–1 2011 Shanghai WAP bronze
Ai Aoki	JPN	SWA	2008	0–1–0 2007 Melbourne SYN silver: team Free Routine Combination
Mayumi Aoki	JPN	SWM	1972	0–0–1 1973 Belgrade SWI bronze: 100 m butterfly
Ayari Aoyama	JPN	SWM	1996	0–1–1 1998 Perth SWI silver: 100 m butterfly, bronze: 4×100 m medley relay
Dmitry Apanasenko	RUS URS EUN	WPO	1988—1996	0–0–2 1986 Madrid WAP bronze (competed for the Soviet Union); 1994 Rome WAP bronze (competed for Russia)
Zoe Arancini	AUS	WPO	2016—2020	0–1–1 2013 Barcelona WAP silver; 2019 Gwangju WAP bronze
Rômulo Arantes	BRA	SWM	1972—1980	0–0–1 1978 West Berlin SWI bronze: 100 m backstroke
Kelly Araouzou	GRE	OWS	2016	0–2–0 2013 Barcelona SWI silver: 5 km open water team; 2015 Kazan SWI silver: 5 km open water
Alexandra Araujo	ITA	WPO	2004	2–1–0 1998 Perth WAP gold (competed for Italy); 2001 Fukuoka WAP gold (competed for Italy); 2003 Barcelona WAP silver (competed for Italy)
Samantha Arévalo	ECU	OWS/SWM	2012—2020	0–1–0 2017 Budapest SWI silver: 10 km
Marie-Thérèse Armentero	SUI	SWM	1984—1988	0–0–1 1986 Madrid SWI bronze: 50 m freestyle
Betsey Armstrong	USA	WPO	2008—2012	2–0–0 2007 Melbourne WAP gold; 2009 Rome WAP gold
Örn Arnarson	ISL	SWM	2000—2008	0–1–1 2001 Fukuoka SWI silver: 100 m backstroke, bronze: 200 m backstroke
Marie-Luc Arpin	CAN	WPO	2000—2004	0–0–2 2001 Fukuoka WAP bronze; 2005 Montréal WAP bronze
Pär Arvidsson	SWE	SWM	1976—1980	0–0–1 1978 West Berlin SWI bronze: 100 m butterfly
Jessica Ashwood	AUS	SWM	2012—2016	0–0–1 2015 Kazan SWI bronze: 400 m freestyle
Alexandra Asimaki	GRE	WPO	2008	1–0–0 2011 Shanghai WAP gold
Alia Atkinson	JAM	SWM	2004—2020	0–1–1 2015 Kazan SWI silver: 50 m breaststroke, bronze: 100 m breaststroke
Francesco Attolico	ITA	WPO	1992—2000	1–0–0 1994 Rome WAP gold
Isabelle Auger	CAN	WPO	2000	0–1–0 1991 Perth WAP silver
Gianni Averaimo	ITA	WPO	1988	1–1–0 1986 Madrid WAP silver; 1994 Rome WAP gold
Yelena Azarova	RUS	SWA	1996—2004	1–0–0 1998 Perth SYN gold: team
Jack Babashoff	USA	SWM	1976	1–0–0 1978 West Berlin SWI gold: 4×100 m freestyle relay
Shirley Babashoff	USA	SWM	1972—2000	2–7–1 1973 Belgrade SWI silver: 100 m freestyle, 200 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay; 1975 Cali SWI gold: 200 m freestyle and 400 m freestyle, silver: 100 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay, bronze: 800 m freestyle
Kristen Babb-Sprague	USA	SWA	1992	1–2–0 1986 Madrid SYN silver: team (competed as Kristen Babb); 1991 Perth SYN gold: team, silver: solo (competed as Kristen Babb)
Marina Babkova	RUS URS	DIV	1988	0–0–1 1986 Madrid DIV bronze: 3 m springboard
Marta Bach	ESP	WPO	2012—2020	1–2–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver; 2019 Gwangju WAP silver
Robin Backhaus	USA	SWM	1972	4–0–1 1973 Belgrade SWI gold: 200 m Butterfly. 4×200 m freestyle relay. and 4×100 m medley relay (swam in heats only), bronze: 100 m butterfly; 1975 Cali SWI gold: 4×100 m freestyle relay (swam in heats only)
Steve Badger	CAN	SWM	1976	0–1–0 1973 Belgrade SWI silver: 4×200 m freestyle relay (competed for Australia)
Angie Bainbridge	AUS	SWM	2008—2012	0–1–0 2011 Shanghai SWI silver: 4×200 m freestyle relay
Kathleen Baker	USA	SWM	2016	1–1–1 2017 Budapest SWI gold: 4×100 m medley relay, silver: 100 m backstroke, bronze: 200 m backstroke
Roman Balashov	RUS	WPO	2000—2004	0–0–1 2001 Fukuoka WAP bronze
Brita Baldus	GDR GER	DIV	1988—1992	0–0–1 1991 Perth DIV bronze: 3 m springboard (competed for Germany)
Kirsty Balfour	GBR	SWM	2004—2008	0–1–0 2007 Melbourne SWI silver: 200 m breaststroke
Daniel Ballart	ESP	WPO	1992—2004	2–2–0 1991 Perth WAP silver; 1994 Rome WAP silver; 1998 Perth WAP gold; 2001 Fukuoka WAP gold
Coralie Balmy	FRA	SWM	2008—2016	0–0–1 2013 Barcelona SWI bronze: 4×200 m freestyle relay
Frank Baltrusch	GDR	SWM	1988	0–1–1 1982 Guayaquil SWI bronze: 200 m backstroke; 1986 Madrid SWI silver: 200 m backstroke
Samir Barać	CRO	WPO	2000—2012	1–0–2 2007 Melbourne WAP gold; 2009 Rome WAP bronze; 2011 Shanghai WAP bronze
Silvio Baracchini	ITA	WPO	1972—1976	1–0–1 1975 Cali WAP bronze; 1978 West Berlin WAP gold
Paolo Barelli	ITA	SWM	1972—1976	0–0–1 1975 Cali SWI bronze: 4×100 m freestyle relay
Aleksey Barkalov	URS UKR	WPO	1968—1980	1–1–0 1973 Belgrade WAP silver; 1975 Cali WAP gold
Romain Barnier	FRA	SWM	2000—2004	0–0–1 2003 Barcelona SWI bronze: 4×100 m freestyle relay
Bengt Baron	SWE	SWM	1980—1984	0–0–2 1982 Guayaquil SWI bronze: 100 m butterfly and 4×100 m freestyle relay
Bronte Barratt	AUS	SWM	2008—2016	1–3–0 2005 Montréal SWI silver: 4×200 m freestyle relay; 2011 Shanghai SWI silver: 4×200 m freestyle relay; 2013 Barcelona SWI silver: 4×200 m freestyle relay; 2015 Kazan SWI gold: 4×100 m freestyle relay (swam in heats only)
Mike Barrowman	USA	SWM	1988—1992	2–0–0 1991 Perth SWI gold: 200 m breaststroke and 4×100 m medley relay (swam in heats only)
Carrie Barton	USA	SWA	2000	0–0–1 1998 Perth SYN bronze: team
Alison Bartosik	USA	SWA	2004	0–1–1 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team
Heidemarie Bártová-Grécká	CZE TCH	DIV	1980—1992	0–0–1 1991 Perth DIV bronze: 1 m springboard
Iurie Başcatov	MDA URS EUN	SWM	1988—1992	0–1–1 1991 Perth SWI silver: 4×100 m medley relay (swam in heats only), bronze: 4×100 m freestyle relay (competed for the Soviet Union)
Clara Basiana	ESP	SWA	2012	0–3–2 2011 Shanghai SYN bronze: team Technical and team Free; 2013 Barcelona SYN silver: team Technical, team Free, and team Free Routine Combination
Stefano Battistelli	ITA	SWM	1988—1992	0–2–2 1986 Madrid SWI silver: 1500 m freestyle; 1991 Perth SWI silver: 200 m backstroke, bronze: 400 m medley and 4×200 m freestyle relay
Alex Baumann	CAN	SWM	1984	0–1–1 1986 Madrid SWI silver: 200 m medley, bronze: 400 m medley
Nadezhda Bazhina	RUS	DIV	2012—2016	0–1–1 2017 Budapest DIV silver: 1 m springboard, bronze: synchronized springboard
Gemma Beadsworth	AUS	WPO	2008—2016	0–1–0 2007 Melbourne WAP silver
Amanda Beard	USA	SWM	1996—2008	1–2–0 2003 Barcelona SWI gold: 200 m breaststroke, silver: 100 m breaststroke and 4×100 m medley relay
Robin Beauregard	USA	WPO	2000—2004	1–0–0 2003 Barcelona WAP gold
Andrea Beccari	ITA	SWM	2000—2004	0–1–0 2001 Fukuoka SWI silver: 4×200 m freestyle relay
Leonie Beck	GER	OWS/SWM	2016—2020	0–0–1 2019 Gwangju SWI bronze: 5 km open water
Reinhold Becker	FRG	SWM	1976	0–1–0 1978 West Berlin SWI silver: 4×100 m medley relay (swam in heats only)
Gudrun Beckmann	FRG	SWM	1972—1976	0–0–2 1973 Belgrade SWI bronze: 4×100 m freestyle relay and 4×100 m medley relay
Brigitte Becue	BEL	SWM	1988—2000	0–0–1 1994 Roma SWI bronze: 200 m breaststroke
B. J. Bedford	USA	SWM	2000	2–0–1 1994 Roma SWI bronze: 100 m backstroke; 1998 Perth SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
Domonic Bedggood	AUS	DIV	2016	0–0–1 2015 Kazan DIV bronze: synchronized platform (mixed)
Johanne Bégin	CAN	WPO	2000—2004	0–0–2 2001 Fukuoka WAP bronze; 2005 Montréal WAP bronze
Roswitha Beier	GDR	SWM	1972	0–1–0 1973 Belgrade SWI silver: 200 m butterfly
Elizabeth Beisel	USA	SWM	2008—2016	1–0–2 2009 Roma SWI bronze: 200 m backstroke; 2011 Shanghai SWI gold: 400 m medley; 2013 Barcelona SWI bronze: 400 m medley
Mireia Belmonte	ESP	SWM	2008—2020	1–4–1 2013 Barcelona SWI silver: 200 m butterfly and 400 m medley, bronze: 200 m medley; 2017 Budapest SWI gold: 200 m butterfly, silver: 1500 m freestyle and 400 m medley
Melissa Belote	USA	SWM	1972—1976	1–2–0 1973 Belgrade SWI gold: 200 m backstroke, silver: 100 m backstroke and 4×100 m medley relay
Olga Belova-Gorbunova	RUS	WPO	2012—2016	0–0–1 2017 Budapest WAP bronze (competed as Olga Gorbunova)
Janine Belton	GBR	SWM	1996—2000	1–0–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay
Olga Belyayeva	RUS	WPO	2008—2012	0–0–2 2009 Rome WAP bronze; 2011 Shanghai WAP bronze
Fabio Bencivenga	ITA	WPO	1996—2008	0–1–0 2003 Barcelona WAP silver
Tibor Benedek	HUN	Coach/WPO	1992—2016	1–2–1 1991 Perth WAP bronze; 1998 Perth WAP silver; 2003 Barcelona WAP gold; 2007 Melbourne WAP silver
Meaghan Benfeito	CAN	DIV	2008—2020	0–3–1 2005 Montréal DIV bronze: synchronized platform; 2013 Barcelona DIV silver: synchronized platform; 2015 Kazan DIV silver: synchronized platform and synchronized platform (mixed)
Lindsay Benko	USA	SWM	2000—2004	2–2–0 1998 Perth SWI silver: 4×200 m freestyle relay; 2003 Barcelona SWI gold: 4×100 m freestyle relay and 4×200 m freestyle relay, silver: 4×100 m medley relay
Brooke Bennett	USA	SWM	1996—2000	1–2–1 1994 Roma SWI bronze: 800 m freestyle; 1998 Perth SWI gold: 800 m freestyle, silver: 400 m freestyle and 4×200 m freestyle relay
Conny van Bentum	NED	SWM	1980—1988	0–0–5 1982 Guayaquil SWI bronze: 4×100 m freestyle relay; 1986 Madrid SWI bronze: 100 m freestyle, 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay
Viktor Berendyuga	URS UKR	WPO	1988	0–0–1 1986 Madrid WAP bronze
Ricky Berens	USA	SWM	2008—2012	4–1–0 2009 Roma SWI gold: 4×200 m freestyle relay and 4×100 m freestyle relay (swam in heats only); 2011 Shanghai SWI gold: 4×200 m freestyle relay; 2013 Barcelona SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay (swam in heats only)
Gillian van den Berg	NED	WPO	2000—2008	0–2–0 1994 Rome WAP silver; 1998 Perth WAP silver
Alain Bernard	FRA	SWM	2008—2012	0–2–3 2007 Melbourne SWI bronze: 4×100 m freestyle relay; 2009 Roma SWI silver: 100 m freestyle, bronze: 4×100 m freestyle relay; 2011 Shanghai SWI silver: 4×100 m freestyle relay, bronze: 50 m freestyle
Jens-Peter Berndt	FRG	SWM	1988	0–1–0 1982 Guayaquil SWI silver: 400 m medley (competed for East Germany)
Elena Bertocchi	ITA	DIV	2010—2020	0–0–1 2017 Budapest DIV bronze: 1 m springboard
Mislav Bezmalinović	CRO YUG	WPO	1988	1–0–0 1991 Perth WAP gold
Suzannah Bianco	USA	SWA	1996	1–0–0 1994 Roma SYN gold: team
Roberta Bianconi	ITA	WPO	2012—2016	0–0–1 2015 Kazan WAP bronze
Paul Biedermann	GER	SWM	2008—2016	2–1–4 2009 Roma SWI gold: 200 m freestyle and 400 m freestyle, silver: 4×100 m medley relay; 2011 Shanghai SWI bronze: 200 m freestyle, 400 m freestyle, and 4×100 m medley relay; 2015 Kazan SWI bronze: 200 m freestyle
Marko Bijač	CRO	WPO	2016—2020	1–1–2 2013 Barcelona WAP bronze; 2015 Kazan WAP silver; 2017 Budapest WAP gold; 2019 Gwangju WAP bronze
Matt Biondi	USA	SWM	1984—1992	6–2–3 1986 Madrid SWI gold: 100 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 100 m butterfly, bronze: 50 m freestyle, 200 m freestyle, and bronze: 4×200 m freestyle relay; 1991 Perth SWI gold: 100 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 50 m freestyle
Péter Biros	HUN	WPO	2000—2012	1–2–0 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP silver
Iso Bishop	AUS	WPO	2016	0–1–1 2013 Barcelona WAP silver; 2019 Gwangju WAP bronze
Andrea Blas	ESP	WPO	2012	1–0–0 2013 Barcelona WAP gold
Pernille Blume	DEN	SWM	2012—2020	0–0–1 2017 Budapest SWI bronze: 100 m freestyle
Claudia Bockner	GER	DIV	1996	0–0–1 1994 Roma DIV bronze: 3 m springboard
Michaël Bodegas	ITA	WPO	2016—2020	1–0–0 2019 Gwangju WAP gold
András Bodnár	HUN	SWM/WPO	1960—1972	1–1–0 1973 Belgrade WAP gold; 1975 Cali WAP silver
Hellen Boering	NED	WPO	2000	1–2–0 1986 Madrid WAP silver; 1991 Perth WAP gold; 1994 Rome WAP silver
Andrey Bogdanov	RUS URS	SWM	1976	0–0–1 1975 Cali SWI bronze: 4×200 m freestyle relay (swam in heats only)
Svetlana Bogdanova	RUS	WPO	2004	0–0–1 2003 Barcelona WAP bronze
Yuliya Bogdanova	RUS URS	SWM	1980	1–1–1 1978 West Berlin SWI gold: 100 m breaststroke, silver: 200 m breaststroke, bronze: 4×100 m medley relay
Alessio Boggiatto	ITA	SWM	2000—2008	1–0–0 2001 Fukuoka SWI gold: 400 m medley
Phil Boggs	USA	DIV	1976	3–0–0 1973 Belgrade DIV gold: 3 m springboard; 1975 Cali DIV gold: 3 m springboard; 1978 West Berlin DIV gold: 3 m springboard
Tanya Bogomilova-Dangalakova	BUL	SWM	1980—1988	0–1–1 1986 Madrid SWI silver: 200 m breaststroke, bronze: 100 m breaststroke (competed as Tanya Bogomilova)
Richárd Bohus	HUN	SWM	2012—2020	0–0–1 2017 Budapest SWI bronze: 4×100 m freestyle relay
Flóra Bolonyai	HUN	WPO	2012	0–0–1 2013 Barcelona WAP bronze
Sergey Bolshakov	RUS	OWS	2012	0–0–1 2011 Shanghai SWI bronze: 10 km open water
Oleksandr Bondar	ROC UKR	DIV	2010—2020	0–2–2 2011 Shanghai DIV bronze: synchronized platform; 2017 Budapest DIV silver: synchronized platform (competed as Aleksandr Bondar for Russia); 2019 Gwangju DIV silver: synchronized platform, bronze: platform (competed as Aleksandr Bondar for Russia)
Charlotte Bonnet	FRA	SWM	2012—2020	0–0–2 2013 Barcelona SWI bronze: 4×200 m freestyle relay; 2019 Gwangju SWI bronze: 4×100 m freestyle mixed relay
Gustavo Borges	BRA	SWM	1992—2004	0–0–2 1994 Roma SWI bronze: 100 m freestyle and 4×100 m freestyle relay
Aleksey Borislavsky	URS UKR	SWM	1988	0–0–1 1991 Perth bronze: 4×100 m freestyle relay (swam in heats only)
Mariya Borisova	RUS	WPO	2016	0–0–1 2017 Budapest WAP bronze
Miho Bošković	CRO	WPO	2008—2012	1–0–2 2007 Melbourne WAP gold; 2009 Rome WAP bronze; 2011 Shanghai WAP bronze
Silvia Bosurgi	ITA	WPO	2004—2008	1–1–0 2001 Fukuoka WAP gold; 2003 Barcelona WAP silver
Beth Botsford	USA	SWM	1996	1–0–0 1998 Perth gold: 4×100 m medley relay (swam in heats only)
Joe Bottom	USA	SWM	1976	7–1–0 1973 Belgrade SWI gold: 4×100 m freestyle relay and 4×100 m medley relay, silver: 100 m butterfly; 1975 Cali SWI gold: 4×100 m freestyle relay (swam in heats only) and 4×100 m medley relay (swam in heats only); 1978 West Berlin SWI gold: 100 m butterfly, 4×100 m freestyle relay (swam in heats only), and 4×100 m medley relay
David Boudia	USA	DIV	2008—2016	0–4–1 2007 Melbourne DIV bronze: synchronized platform; 2009 Roma DIV silver: synchronized platform; 2011 Shanghai DIV silver: platform; 2013 Barcelona DIV silver: platform; 2015 Kazan DIV silver: platform
Marie-Pierre Boudreau-Gagnon	CAN	SWA	2008—2012	0–0–3 2009 Roma SYN bronze: solo Technical and team Free Routine Combination; 2011 Shanghai SYN bronze: team Free Routine Combination
Lorys Bourelly	FRA	SWM	2016	1–0–0 2015 Kazan SWI gold: 4×100 m freestyle relay (swam in heats only)
Fréd Bousquet	FRA	SWM	2000—2016	0–1–5 2003 Barcelona SWI bronze: 4×100 m freestyle relay; 2007 Melbourne SWI bronze: 4×100 m freestyle relay; 2009 Roma SWI silver: 50 m freestyle, bronze: 100 m freestyle and bronze: 4×100 m freestyle relay; 2013 Barcelona SWI bronze: 50 m butterfly
George Bovell	TTO	SWM	2000—2016	0–0–1 2013 Barcelona SWI bronze: 50 m freestyle
Alessandro Bovo	ITA	WPO	1992—1996	1–0–0 1994 Rome WAP gold
Lauren Boyle	NZL	SWM	2008—2016	0–2–3 2013 Barcelona SWI bronze: 400 m freestyle, 800 m freestyle, and 1500 m freestyle; 2015 Kazan SWI silver: 800 m freestyle and 1500 m freestyle
Ralf Braun	GER	SWM	1996—2000	0–1–0 1998 Perth SWI silver: 200 m backstroke
Dirk Braunleder	FRG	SWM	1976	0–2–0 1975 Cali SWI silver: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
Fruzsina Brávik	HUN	WPO	2008	1–0–0 2005 Montréal WAP gold
Emiliano Brembilla	ITA	SWM	1996—2008	0–2–1 1998 Perth SWI silver: 1500 m freestyle; 2001 Fukuoka SWI silver: 4×200 m freestyle relay, bronze: 400 m freestyle
Chris-Carol Bremer	GER	SWM	1992—1996	0–0–1 1994 Roma SWI bronze: 200 m butterfly
Janice Bremner	CAN	SWA	1996	0–1–0 1994 Roma SYN silver: team
Rosalind Brett	GBR	SWM	2000	0–1–0 2001 Fukuoka SWI silver: 4×100 m freestyle relay
Serhiy Breus	UKR	SWM	2008	0–0–1 2005 Montréal SWI bronze: 50 m butterfly
Darko Brguljan	MNE	WPO	2016	0–1–0 2013 Barcelona WAP silver
Draško Brguljan	MNE	WPO	2008—2020	1–1–0 1986 Madrid WAP gold (competed for Yugoslavia); 2013 Barcelona WAP silver (competed for Montenegro)
Karin Brienesse	NED	SWM	1988—1996	0–1–2 1986 Madrid SWI bronze: 4×100 m freestyle relay; 1991 Perth SWI silver: 4×200 m freestyle relay, bronze: 4×100 m freestyle relay
Enith Brigitha	NED	SWM	1972—1976	0–1–4 1973 Belgrade SWI silver: 200 m backstroke, bronze: 100 m freestyle; 1975 Cali SWI bronze: 100 m freestyle, 200 m freestyle, and 4×100 m medley relay
Melissa Briley	USA	DIV	1976	0–0–1 1978 West Berlin DIV bronze: platform
Brian Brinkley	GBR	SWM	1972—1976	0–1–3 1975 Cali SWI silver: 4×200 m freestyle relay, bronze: 200 m freestyle, 200 m butterfly, and 4×100 m medley relay
Grant Brits	AUS	SWM	2008	0–1–0 2007 Melbourne SWI silver: 4×200 m freestyle relay
Leith Brodie	AUS	SWM	2008	0–0–1 2005 Montréal SWI bronze: 4×100 m freestyle relay
Peter Broscienski	FRG	SWM	1976	0–1–0 1978 West Berlin SWI silver: 4×100 m medley relay (swam in heats only)
Mike Brown	CAN	SWM	2004—2008	0–1–0 2005 Montréal SWI silver: 200 m breaststroke
Peter Bruch	GDR	SWM	1972	0–0–1 1973 Belgrade SWI bronze: 4×100 m freestyle relay
Annika Bruhn	GER	SWM	2012—2020	0–0–1 2015 Kazan SWI bronze: 4×100 m medley mixed relay
Daniëlle de Bruijn	NED	WPO	2000—2008	0–1–0 1998 Perth WAP silver
Inge de Bruijn	NED	SWM	1992—2004	4–0–1 1991 Perth SWI bronze: 4×100 m freestyle relay; 2001 Fukuoka SWI gold: 50 m freestyle, 100 m freestyle, and 50 m butterfly; 2003 Barcelona SWI gold: 50 m butterfly
Mike Bruner	USA	SWM	1976	1–0–0 1978 West Berlin SWI gold: 200 m butterfly
Rachele Bruni	ITA	OWS	2016—2020	0–1–2 2017 Budapest SWI bronze: 4×1.25 km open water relay; 2019 Gwangju SWI silver: 4×1.25 km open water relay, bronze: 10 km open water
Olga Brusnikina	RUS	SWA	1996—2004	4–0–0 1998 Perth SYN gold: duet and team; 2001 Fukuoka SYN gold: solo; 2003 Barcelona SYN gold: team
Hannah Buckling	AUS	WPO	2016—2020	0–1–1 2013 Barcelona WAP silver; 2019 Gwangju WAP bronze
Barbara Bujka	HUN	WPO	2012—2016	0–0–1 2013 Barcelona WAP bronze
Luka Bukić	CRO	WPO	2016—2020	0–1–1 2013 Barcelona WAP bronze; 2015 Kazan WAP silver
Perica Bukić	CRO YUG	WPO	1984—1996	2–0–0 1986 Madrid WAP gold (competed for Yugoslavia); 1991 Perth WAP gold (competed for Yugoslavia)
Ivan Buljubašić	CRO	WPO	2012	1–0–2 2009 Rome WAP bronze; 2011 Shanghai WAP bronze; 2017 Budapest WAP gold
Carmen Bunaciu	ROU	SWM	1980—1984	0–0–1 1982 Guayaquil SWI bronze: 200 m backstroke
Fabrizio Buonocore	ITA	WPO	2004—2008	0–1–0 2003 Barcelona WAP silver
Caroline Burckle	USA	SWM	2008	1–0–0 2005 Montréal SWI gold: 4×200 m freestyle relay (swam in heats only)
Vladimir Bure	RUS URS	SWM	1968—1976	0–2–0 1973 Belgrade SWI silver: 4×100 m freestyle relay; 1975 Cali SWI silver: 100 m freestyle
Greg Burgess	USA	SWM	1992—1996	0–1–0 1994 Roma SWI silver: 200 m medley
Cameron van der Burgh	RSA	SWM	2008—2016	2–3–5 2007 Melbourne SWI bronze: 50 m breaststroke; 2009 Roma SWI gold: 50 m breaststroke, bronze: 100 m breaststroke; 2011 Shanghai SWI bronze: 50 m breaststroke and 100 m breaststroke; 2013 Barcelona SWI gold: 50 m breaststroke, silver: 100 m breaststroke; 2015 Kazan SWI silver: 50 m breaststroke and 100 m breaststroke; 2017 Budapest SWI bronze: 50 m breaststroke
Damir Burić	CRO	WPO	2004—2016	1–1–2 2007 Melbourne WAP gold; 2009 Rome WAP bronze; 2011 Shanghai WAP bronze; 2015 Kazan WAP silver
Kim Busch	NED	SWM	2014—2020	0–0–1 2017 Budapest SWI bronze: 4×100 m freestyle relay
Antje Buschschulte	GER	SWM	1996—2008	3–5–3 1998 Perth SWI gold: 4×200 m freestyle relay (swam in heats only), silver: 4×100 m freestyle relay (swam in heats only); 2001 Fukuoka SWI gold: 4×100 m freestyle relay, silver: 50 m backstroke, bronze: 100 m backstroke; 2003 Barcelona SWI gold: 100 m backstroke, silver: 4×100 m freestyle relay; 2005 Montréal SWI silver: 100 m backstroke and 4×100 m freestyle relay, bronze: 50 m backstroke and 4×100 m medley relay
Andro Bušlje	CRO	WPO	2008—2020	2–1–4 2007 Melbourne WAP gold; 2009 Rome WAP bronze; 2011 Shanghai WAP bronze; 2013 Barcelona WAP bronze; 2015 Kazan WAP silver; 2017 Budapest WAP gold; 2019 Gwangju WAP bronze
Ricardo Busquets	PUR	SWM	1992—2004	0–0–1 1998 Perth SWI bronze: 50 m freestyle
Alba Cabello	ESP	SWA	2008—2012	1–3–3 2007 Melbourne SYN bronze: team Technical; 2009 Roma SYN gold: team Free Routine Combination; 2011 Shanghai SYN bronze: team Technical and team Free; 2013 Barcelona SYN silver: team Technical, team Free, and team Free Routine Combination
Franco Cagnotto	ITA	DIV	1964—1980	0–0–1 1978 West Berlin DIV bronze: 3 m springboard
Tania Cagnotto	ITA	DIV	2000—2016	1–3–6 2005 Montréal DIV bronze: 3 m springboard; 2007 Melbourne DIV bronze: 3 m springboard; 2009 Roma DIV silver: synchronized springboard, bronze: 3 m springboard; 2011 Shanghai DIV bronze: 1 m springboard; 2013 Barcelona DIV silver: 1 m springboard and synchronized springboard; 2015 Kazan DIV gold: 1 m springboard, bronze: 3 m springboard and 3 m synchronized springboard (mixed)
Alessandro Calcaterra	ITA	WPO	1996—2008	0–1–0 2003 Barcelona WAP silver
Roberto Calcaterra	ITA	WPO	1996—2004	1–1–0 1994 Rome WAP gold; 2003 Barcelona WAP silver
Paolo Caldarella	ITA	WPO	1988—1992	0–1–0 1986 Madrid WAP silver
Hilary Caldwell	CAN	SWM	2012—2016	0–0–1 2013 Barcelona SWI bronze: 200 m backstroke
Beatrice Callegari	ITA	SWA	2016—2020	0–1–0 2019 Gwangju SYN silver: team Highlight Routine
Novella Calligaris	ITA	SWM	1968—1972	1–0–2 1973 Belgrade SWI gold: 800 m freestyle, bronze: 400 m freestyle and 400 m medley
Ashley Callus	AUS	SWM	2000—2008	2–0–0 2001 Fukuoka SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
Dyana Calub	AUS	SWM	2000	1–0–0 2001 Fukuoka SWI gold: 4×100 m medley relay
Alessandro Calvi	ITA	SWM	2004—2008	0–1–0 2007 Melbourne SWI silver: 4×100 m freestyle relay
Michelle Cameron	CAN	SWA	1988	2–0–0 1986 Madrid SYN gold: duet and gold: team
Sandro Campagna	ITA	Coach/WPO	1988—2020	1–1–0 1986 Madrid WAP silver; 1994 Rome WAP gold
Bronte Campbell	AUS	SWM	2012—2020	5–4–2 2013 Barcelona SWI silver: 4×100 m freestyle relay; 2015 Kazan SWI gold: 50 m freestyle, 100 m freestyle, and 4×100 m freestyle relay, bronze: 4×100 m medley relay; 2017 Budapest SWI silver: 4×100 m freestyle relay and 4×100 m medley mixed relay, bronze: 4×100 m medley relay; 2019 Gwangju SWI gold: 4×100 m freestyle relay and 4×100 m medley mixed relay (swam in heats only), silver: 4×100 m freestyle mixed relay
Cate Campbell	AUS	SWM	2008—2020	4–5–3 2009 Roma SWI bronze: 50 m freestyle; 2013 Barcelona SWI gold: 100 m freestyle, silver: 50 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay; 2015 Kazan SWI gold: 4×100 m freestyle relay, bronze: 100 m freestyle; 2019 Gwangju SWI gold: 4×100 m freestyle relay and 4×100 m medley mixed relay, silver: 100 m freestyle and 4×100 m medley relay, bronze: 50 m freestyle
Cora Campbell	CAN	WPO	2000—2004	0–0–2 2001 Fukuoka WAP bronze; 2005 Montréal WAP bronze
Cao Yuan	CHN	DIV	2012—2020	3–2–1 2013 Barcelona DIV bronze: synchronized platform; 2015 Kazan DIV gold: synchronized springboard; 2017 Budapest DIV silver: synchronized springboard; 2019 Gwangju DIV gold: synchronized springboard and synchronized platform, silver: 3 m springboard
Federico Cappellazzo	ITA	SWM	2004	0–1–0 2001 Fukuoka SWI silver: 4×200 m freestyle relay (swam in heats only)
Ona Carbonell	ESP	SWA	2012—2020	1–10–11 2007 Melbourne SYN bronze: team Technical; 2009 Roma SYN gold: team Free Routine Combination, silver: team Technical and team Free; 2011 Shanghai SYN bronze: duet Technical, duet Free, team Technical, and team Free; 2013 Barcelona SYN silver: team Technical, team Free, and team Free Routine Combination, bronze: solo Technical, solo Free, duet Technical, and duet Free; 2015 Kazan SYN silver: solo Technical, bronze: solo Free; 2017 Budapest SYN silver: solo Technical and solo Free; 2019 Gwangju SYN silver: solo Technical and solo Free, bronze: team Highlight Routine
Patty Cardenas	USA	WPO	2008	1–0–0 2007 Melbourne WAP gold
Rick Carey	USA	SWM	1984	2–1–0 1982 Guayaquil SWI gold: 200 m backstroke and 4×100 m medley relay, silver: 100 m backstroke
Jazz Carlin	GBR	SWM	2016	0–0–2 2009 Roma SWI bronze: 4×200 m freestyle relay; 2015 Kazan SWI bronze: 800 m freestyle
Stéphan Caron	FRA	SWM	1984—1992	0–1–0 1986 Madrid SWI silver: 100 m freestyle
Martina Carraro	ITA	SWM	2010—2020	0–0–1 2019 Gwangju SWI bronze: 100 m breaststroke
Lara Carroll	AUS	SWM	2004	0–0–1 2005 Montréal SWI bronze: 200 m medley
Jim Carter	GBR	SWM	1972—1980	0–0–1 1975 Cali SWI bronze: 4×100 m medley relay
Matthew Carter	AUS	DIV	2018	1–0–0 2019 Gwangju DIV gold: synchronized springboard (mixed)
Claire Carver-Dias	CAN	SWA	2000	0–0–2 2001 Fukuoka SYN bronze: duet and team
Chad Carvin	USA	SWM	2000	0–1–1 2001 Fukuoka SWI bronze: 4×200 m freestyle relay; 2003 Barcelona SWI silver: 4×200 m freestyle relay (swam in heats only)
Luigi Castagnola	ITA	WPO	1976	0–0–1 1975 Cali WAP bronze
Yahel Castillo	MEX	DIV	2008—2020	0–0–3 2011 Shanghai DIV bronze: synchronized springboard; 2013 Barcelona DIV bronze: 3 m springboard; 2019 Gwangju DIV bronze: synchronized springboard
Naomi Castle	AUS	WPO	2000—2004	0–0–1 1998 Perth WAP bronze
Tracy Caulkins	USA	SWM	1984	5–2–2 1978 West Berlin SWI gold: 200 m butterfly, 200 m medley, 400 m medley, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 100 m breaststroke; 1982 Guayaquil SWI silver: 4×100 m freestyle relay (swam in heats only), bronze: 200 m medley and 400 m medley
Chris Cavanaugh	USA	SWM	1984	2–0–0 1982 Guayaquil SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
Milorad Čavić	SRB SCG	SWM	2000—2012	1–1–0 2009 Roma SWI gold: 50 m butterfly, silver: 100 m butterfly (competed for Serbia)
Simone Cercato	ITA	SWM	2000—2004	0–1–0 2001 Fukuoka SWI silver: 4×200 m freestyle relay (swam in heats only)
Linda Cerruti	ITA	SWA	2016—2020	0–1–0 2019 Gwangju SYN silver: team Highlight Routine
Kyle Chalmers	AUS	SWM	2014—2020	1–3–1 2015 Kazan SWI silver: 4×100 m medley relay (swam in heats only); 2019 Gwangju SWI gold: 4×200 m freestyle relay, silver: 100 m freestyle and 4×100 m freestyle mixed relay, bronze: 4×100 m freestyle relay
Erin Chan	CAN	SWA	2000—2004	0–0–1 2001 Fukuoka SYN bronze: team
Jennifer Chandler	USA	DIV	1976	0–0–1 1978 West Berlin DIV bronze: 3 m springboard
Chang Si	CHN	SWA	2012	0–3–0 2011 Shanghai SYN silver: team Technical, team Free, and team Free Routine Combination
Jessica Chase	CAN	SWA	2004	0–0–1 2001 Fukuoka SYN bronze: team
Kevin Chávez	AUS	DIV	2016	0–0–1 2013 Barcelona DIV bronze: 1 m springboard (competed for Mexico)
Chen Aisen	CHN	DIV	2016—2020	3–1–0 2015 Kazan DIV gold: synchronized platform; 2017 Budapest DIV gold: synchronized platform, silver: platform; 2019 Gwangju DIV gold: synchronized platform
Chen Huijia	CHN	SWM	2008	1–0–0 2009 Roma SWI gold: 4×100 m medley relay
Chen Jianhong	CHN	SWM	1988—1992	0–0–0 1991 Perth gold: 50 m breaststroke (demonstration event)
Chen Qian	CHN	SWM	2012	0–0–1 2011 Shanghai SWI bronze: 4×200 m freestyle relay
Chen Ruolin	CHN	DIV	2008—2016	6–3–1 2007 Melbourne DIV gold: synchronized platform, silver: platform; 2009 Roma DIV gold: synchronized platform, silver: platform; 2011 Shanghai DIV gold: platform and synchronized platform; 2013 Barcelona DIV gold: synchronized platform, silver: platform; 2015 Kazan DIV gold: synchronized platform, bronze: team
Chen Xiaojun	CHN	SWA	2012	0–1–0 2011 Shanghai SYN silver: team Free Routine Combination
Chen Xinyi	CHN	SWM	2016	1–0–0 2015 Kazan SWI gold: 4×100 m medley relay (swam in heats only)
Chen Yan	CHN	SWM	1996	2–1–0 1998 Perth SWI gold: 400 m freestyle and 400 m medley; 1998 Perth SWI silver: 200 m medley
Cheong Jun Hoong	MAS	DIV	2012—2020	1–0–1 2017 Budapest DIV gold: platform, bronze: synchronized platform
Dmitry Chernyshov	RUS	SWM	2000	0–0–1 2001 Fukuoka SWI bronze: 4×100 m medley relay
Ihor Chervynskyi	UKR	OWS/SWM	2000—2012	0–1–1 2003 Barcelona SWI silver: 1500 m freestyle, bronze: 800 m freestyle
Suzu Chiba	JPN	SWM	1992—1996	0–0–1 1991 Perth SWI bronze: 400 m freestyle
Marcelo Chierighini	BRA	SWM	2012—2020	0–1–0 2017 Budapest SWI silver: 4×100 m freestyle relay
Vlada Chigiryova	ROC RUS	SWA	2016—2020	11–0–0 2013 Barcelona SYN gold: team Technical, team Free, and team Free Routine Combination; 2015 Kazan SYN gold: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN gold: team Technical and team Free; 2019 Gwangju SYN gold: team Technical, team Free, and team Free Routine Combination
Svetlana Chimrova	ROC RUS	SWM	2016—2020	0–1–1 2013 Barcelona SWI bronze: 4×100 m medley relay; 2017 Budapest SWI silver: 4×100 m medley relay
Giorgi Chogovadze	GEO URS EUN	DIV	1988—1992	0–0–1 1991 Perth DIV bronze: platform (competed for the Soviet Union)
Revaz Chomakhidze	RUS	WPO	2000—2004	0–0–1 2001 Fukuoka WAP bronze
Henrik Christiansen	NOR	SWM	2014—2020	0–1–0 2019 Gwangju SWI silver: 800 m freestyle
Anton Chupkov	ROC RUS	SWM	2014—2020	2–0–2 2017 Budapest SWI gold: 200 m breaststroke, bronze: 4×100 m medley relay (swam in heats only); 2019 Gwangju SWI gold: 200 m breaststroke, bronze: 4×100 m medley relay (swam in heats only)
César Cielo Filho	BRA	SWM	2008—2012	6–1–0 2009 Roma SWI gold: 50 m freestyle and 100 m freestyle; 2011 Shanghai SWI gold: 50 m freestyle and 50 m butterfly; 2013 Barcelona SWI gold: 50 m freestyle and 50 m butterfly; 2017 Budapest SWI silver: 4×100 m freestyle relay
Aleksandar Ćirić	SRB SCG	WPO	2000—2008	0–0–1 2003 Barcelona WAP bronze (competed for Serbia and Montenegro)
Barbara Clark	CAN	SWM	1976	0–0–1 1975 Cali SWI bronze: 4×100 m freestyle relay (swam in heats only)
Karen Clark	CAN	SWA	1996	0–2–0 1991 Perth SYN silver: team; 1994 Roma SYN silver: team
Tyler Clary	USA	SWM	2012	0–2–2 2009 Roma SWI silver: 400 m medley; 2011 Shanghai SWI silver: 400 m medley, bronze: 200 m backstroke; 2013 Barcelona SWI bronze: 200 m backstroke
Andrew Clayton	GBR	SWM	1996—2000	0–0–1 1998 Perth SWI bronze: 4×200 m freestyle relay
Tammy Cleland-McGregor	USA	SWA	1996—2000	1–0–0 1994 Roma SYN gold: team (competed as Tammy Cleland)
Valerio Cleri	ITA	OWS	2008—2012	1–0–0 2009 Roma SWI gold: 25 km open water
Beatrice Coadă-Cășlaru	ROU	SWM	1992—2004	0–0–2 1991 Perth bronze: 4×50 m freestyle relay (demonstration event); 2001 Fukuoka SWI bronze: 400 m medley (competed as Beatrice Cășlaru); 2003 Barcelona SWI bronze: 400 m medley (competed as Beatrice Cășlaru)
Ryan Cochrane	CAN	SWM	2008—2016	0–4–4 2009 Roma SWI silver: 1500 m freestyle, bronze: 800 m freestyle; 2011 Shanghai SWI silver: 800 m freestyle and: 1500 m freestyle; 2013 Barcelona SWI silver: 1500 m freestyle, bronze: 800 m freestyle; 2015 Kazan SWI bronze: 400 m freestyle and 1500 m freestyle
Tiffany Cohen	USA	SWM	1984	0–0–1 1982 Guayaquil SWI bronze: 400 m freestyle
Federico Colbertaldo	ITA	SWM	2008	0–0–1 2007 Melbourne SWI bronze: 800 m freestyle
Bree Cole	AUS	DIV	2008	0–1–1 2007 Melbourne DIV silver: synchronized platform, bronze: synchronized springboard
Lynn Colella	USA	SWM	1972	0–0–2 1973 Belgrade SWI bronze: 200 m breaststroke and 200 m butterfly
Rick Colella	USA	SWM	1972—1976	1–1–1 1973 Belgrade SWI bronze: 400 m medley; 1975 Cali SWI gold: 4×100 m medley relay, silver: 200 m breaststroke
Michelle Coleman	SWE	SWM	2012—2020	0–1–0 2015 Kazan SWI silver: 4×100 m medley relay
Romeo Collina	ITA	WPO	1980—1984	1–0–0 1978 West Berlin WAP gold
Melissa Collins	CAN	WPO	2000—2004	0–0–1 2001 Fukuoka WAP bronze
Dragoș Coman	ROU	SWM	2000—2008	0–0–1 2003 Barcelona SWI bronze: 400 m freestyle
Santo Condorelli	CAN ITA	SWM	2016—2020	0–0–1 2015 Kazan SWI bronze: 4×100 m freestyle mixed relay
Jack Conger	USA	SWM	2016	0–1–2 2017 Budapest SWI bronze: 4×200 m freestyle relay; 2019 Gwangju SWI silver: 4×100 m medley relay (swam in heats only), bronze: 4×200 m freestyle relay (swam in heats only)
Lars Conrad	GER	SWM	2000—2004	0–0–2 2001 Fukuoka SWI bronze: 4×100 m freestyle relay; 2003 Barcelona SWI bronze: 4×200 m freestyle relay
Francesca Conti	ITA	WPO	2004	2–1–1 1994 Rome WAP bronze; 1998 Perth WAP gold; 2001 Fukuoka WAP gold; 2003 Barcelona WAP silver
Wendy Cook-Hogg	CAN	SWM	1972—1976	0–0–1 1973 Belgrade SWI bronze: 100 m backstroke (competed as Wendy Cook)
Rebecca Cooke	GBR	SWM	2000—2004	0–0–1 2003 Barcelona SWI bronze: 800 m freestyle
Brad Cooper	AUS	SWM	1972	0–2–1 1973 Belgrade SWI silver: 400 m freestyle and 4×200 m freestyle relay, bronze: 1500 m freestyle
Haley Cope	USA	SWM	2004	1–1–0 2001 Fukuoka SWI gold: 50 m backstroke; 2003 Barcelona SWI silver: 4×100 m medley relay (swam in heats only)
Kevin Cordes	USA	SWM	2016	3–3–1 2015 Kazan SWI gold: 4×100 m medley relay, silver: 200 m breaststroke and silver: 4×100 m medley mixed relay, bronze: 50 m breaststroke; 2017 Budapest SWI gold: 4×100 m medley relay and 4×100 m medley mixed relay (swam in heats only), silver: 100 m breaststroke
Raquel Corral	ESP	SWA	2004—2008	1–3–2 2003 Barcelona SYN silver: team Free Routine Combination; 2005 Montréal SYN bronze: team and team Free Routine Combination; 2009 Roma SYN gold: team Free Routine Combination, silver: team Technical and team Free
Ritz Correia	USA	SWM	2004	2–2–0 2001 Fukuoka gold: 4×200 m freestyle relay (swam in heats only), silver: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only); 2003 Barcelona gold: 4×100 m freestyle relay (swam in heats only)
Melani Costa	ESP	SWM	2008—2016	0–1–0 2013 Barcelona SWI silver: 400 m freestyle
Tamara Costache	ROU	SWM	1988	1–0–0 1986 Madrid SWI gold: 50 m freestyle, bronze: 4×50 m freestyle relay (demonstration event)
Candy Costie	USA	SWA	1984	0–2–0 1982 Guayaquil SYN silver: duet and team
Céline Couderc	FRA	SWM	2004—2008	0–0–1 2007 Melbourne SWI bronze: 4×200 m freestyle relay (swam in heats only)
Natalie Coughlin	USA	SWM	2004—2012	8–7–5 2001 Fukuoka SWI gold: 100 m backstroke and 4×200 m freestyle relay, silver: 4×100 m medley relay, bronze: 50 m backstroke; 2003 Barcelona SWI gold: 4×100 m freestyle relay, silver: 4×100 m medley relay; 2005 Montréal SWI gold: 4×200 m freestyle relay, silver: 100 m freestyle and 4×100 m medley relay, bronze: 100 m backstroke and 4×100 m freestyle relay; 2007 Melbourne SWI gold: 100 m backstroke and 4×200 m freestyle relay, silver: 4×100 m freestyle relay and 4×100 m medley relay, bronze: 100 m butterfly; 2011 Shanghai SWI gold: 4×100 m medley relay, silver: 4×100 m freestyle relay, bronze: 100 m backstroke; 2013 Barcelona SWI gold: 4×100 m freestyle relay
Alicia Coutts	AUS	SWM	2008—2016	0–7–1 2011 Shanghai SWI silver: 100 m butterfly and 200 m medley; 2011 Shanghai SWI bronze: 4×100 m medley relay; 2013 Barcelona SWI silver: 100 m butterfly, 200 m medley, 4×100 m freestyle relay, 4×200 m freestyle relay, and silver: 4×100 m medley relay
Kirsty Coventry	ZIM	IOC/SWM	2000—2021	3–5–0 2005 Montréal SWI gold: 100 m backstroke and 200 m backstroke, silver: 200 m medley and silver: 400 m medley; 2007 Melbourne SWI silver: 200 m backstroke and200 m medley; 2009 Roma SWI gold: 200 m backstroke, silver: 400 m medley
Kami Craig	USA	WPO	2008—2016	3–0–0 2007 Melbourne WAP gold; 2009 Rome WAP gold; 2015 Kazan WAP gold
Margalida Crespí	ESP	SWA	2012	1–5–4 2009 Roma SYN gold: team Free Routine Combination, silver: team Technical and team Free; 2011 Shanghai SYN bronze: team Technical and team Free; 2013 Barcelona SYN silver: team Technical, team Free, and team Free Routine Combination, bronze: duet Technical and duet Free
Alexandra Croak	AUS	DIV/GAR	2000—2008	0–1–0 2011 Shanghai DIV silver: synchronized platform
Ian Crocker	USA	SWM	2000—2008	4–5–0 2001 Fukuoka SWI silver: 100 m butterfly; 2003 Barcelona SWI gold: 100 m butterfly and 4×100 m medley relay, silver: 50 m butterfly; 2005 Montréal SWI gold: 100 m butterfly and 4×100 m medley relay, silver: 50 m butterfly; 2007 Melbourne SWI silver: 50 m butterfly and 100 m butterfly
Ugo Crousillat	FRA	WPO	2016	0–1–0 2013 Barcelona WAP silver (competed for Montenegro)
Gábor Csapó	HUN	WPO	1976—1980	1–3–0 1973 Belgrade WAP gold; 1975 Cali WAP silver; 1978 West Berlin WAP silver; 1982 Guayaquil WAP silver
László Cseh	HUN	SWM	2004—2020	2–6–5 2003 Barcelona SWI silver: 400 m medley; 2005 Montréal SWI gold: 400 m medley, silver: 200 m medley, bronze: 100 m backstroke; 2007 Melbourne SWI bronze: 200 m medley; 2009 Roma SWI silver: 200 m medley, bronze: 400 m medley; 2011 Shanghai SWI bronze: 200 m medley; 2013 Barcelona SWI silver: 100 m butterfly; 2015 Kazan SWI gold: 200 m butterfly, silver: 100 m butterfly, bronze: 50 m butterfly; 2017 Budapest SWI silver: 200 m butterfly
Tibor Cservenyák	HUN	WPO	1972—1976	1–2–0 1973 Belgrade WAP gold; 1975 Cali WAP silver; 1982 Guayaquil WAP silver
Nikita Cuffe	AUS	WPO	2004—2008	0–1–0 2007 Melbourne WAP silver
Miloš Ćuk	SRB	WPO	2016	1–1–1 2011 Shanghai WAP silver; 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Janet Culp	USA	SWA	2008	0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination
Ana Marcela Cunha	BRA	OWS	2008—2020	5–2–4 2011 Shanghai SWI gold: 25 km open water; 2013 Barcelona SWI silver: 10 km open water, bronze: 5 km open water; 2015 Kazan SWI gold: 25 km open water, silver: 5 km open water team, bronze: 10 km open water; 2017 Budapest SWI gold: 25 km open water, bronze: 5 km open water and 10 km open water; 2019 Gwangju SWI gold: 5 km open water and 25 km open water
Attila Czene	HUN	SWM	1992—2000	0–0–3 1994 Roma SWI bronze: 200 m medley and 4×100 m medley relay; 1998 Perth SWI bronze: 4×100 m medley relay
Konrad Czerniak	POL	SWM	2012—2020	0–1–2 2011 Shanghai SWI silver: 100 m butterfly; 2013 Barcelona SWI bronze: 100 m butterfly; 2015 Kazan SWI bronze: 50 m butterfly
Marco D'Altrui	ITA	WPO	1984—1992	1–1–0 1986 Madrid WAP silver; 1994 Rome WAP gold
Enzo D'Angelo	ITA	WPO	1976—1984	0–0–1 1975 Cali WAP bronze
Tommaso D'Orsogna	AUS	SWM	2012	0–1–1 2009 Roma SWI bronze: 4×200 m freestyle relay; 2013 Barcelona SWI silver: 4×100 m medley relay
Heike Dähne	GDR	SWM	1980	0–0–1 1982 Guayaquil SWI bronze: 200 m butterfly
Troy Dalbey	USA	SWM	1988	1–1–0 1991 Perth SWI gold: 4×100 m freestyle relay (swam in heats only), silver: 4×200 m freestyle relay
Tom Daley	GBR	DIV	2008—2020	3–1–2 2009 Roma DIV gold: platform; 2015 Kazan DIV gold: team, bronze: platform; 2017 Budapest DIV gold: platform, silver: synchronized springboard (mixed); 2019 Gwangju DIV bronze: synchronized platform
Francesca Dallapè	ITA	DIV	2008—2016	0–2–0 2009 Roma DIV silver: synchronized springboard; 2013 Barcelona DIV silver: synchronized springboard
Petra Dallmann	GER	SWM	2004—2008	1–4–0 2001 Fukuoka SWI gold: 4×100 m freestyle relay; 2003 Barcelona SWI silver: 4×100 m freestyle relay; 2005 Montréal SWI silver: 4×100 m freestyle relay; 2007 Melbourne SWI silver: 4×200 m freestyle relay; 2009 Roma SWI silver: 4×100 m freestyle relay
José Damen	NED	SWM	1976	0–0–1 1975 Cali SWI bronze: 4×100 m medley relay
Tamás Darnyi	HUN	SWM	1988—1992	4–0–1 1986 Madrid SWI gold: 200 m medley and 400 m medley; 1991 Perth SWI gold: 200 m medley and 400 m medley, bronze: 200 m butterfly
Uwe Daßler	GDR	SWM	1988	0–1–0 1986 Madrid SWI silver: 400 m freestyle
Lara Davenport	AUS	SWM	2008	0–1–0 2005 Montréal SWI silver: 4×200 m freestyle relay (swam in heats only)
Dave Davies	GBR	OWS/SWM	2004—2012	0–0–2 2005 Montréal SWI bronze: 1500 m freestyle; 2007 Melbourne SWI bronze: 1500 m freestyle
Georgia Davies	GBR	SWM	2012—2016	0–0–1 2019 Gwangju SWI bronze: 4×100 m medley mixed relay
Josh Davis	USA	SWM	1996—2000	1–0–0 1994 Roma SWI gold: 4×100 m freestyle relay
Victor Davis	CAN	SWM	1984—1988	2–2–0 1982 Guayaquil SWI gold: 200 m breaststroke, silver: 100 m breaststroke; 1986 Madrid SWI gold: 100 m breaststroke, silver: 200 m breaststroke
Anastasiya Davydova	RUS	SWA	2004—2012	12–1–0 2001 Fukuoka SYN gold: team, silver: duet; 2003 Barcelona SYN gold: duet; 2005 Montréal SYN gold: duet and team Free Routine Combination; 2007 Melbourne SYN gold: duet Technical, duet Free, and team Free Routine Combination; 2009 Roma SYN gold: duet Technical and team Free; 2011 Shanghai SYN gold: team Technical, team Free, and team Free Routine Combination
Gianni De Magistris	ITA	WPO	1968—1984	1–0–1 1975 Cali WAP bronze; 1978 West Berlin WAP gold
Deena Deardurff	USA	SWM	1972	0–2–0 1973 Belgrade SWI silver: 4×100 m medley relay and 4×100 m freestyle relay (swam in heats only)
Fred Deburghgraeve	BEL	SWM	1992—1996	1–0–1 1994 Roma SWI bronze: 100 m breaststroke; 1998 Perth SWI gold: 100 m breaststroke
Ádám Decker	HUN	WPO	2016	1–1–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver
Attila Decker	HUN	WPO	2016	1–1–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver
Virginie Dedieu	FRA	SWA	1996—2004	3–2–1 1998 Perth SYN silver: solo, bronze: duet; 2001 Fukuoka SYN silver: solo; 2003 Barcelona SYN gold: solo; 2005 Montréal SYN gold: solo; 2007 Melbourne SYN gold: solo Free
Markus Deibler	GER	SWM	2008—2012	0–0–1 2011 Shanghai SWI bronze: 4×100 m medley relay (swam in heats only)
Francesca Deidda	ITA	SWA	2016—2020	0–1–0 2019 Gwangju SYN silver: team Highlight Routine
Inge Dekker	NED	SWM	2004—2016	3–0–3 2007 Melbourne SWI bronze: 50 m butterfly and 4×100 m freestyle relay; 2009 Roma SWI gold: 4×100 m freestyle relay; 2011 Shanghai SWI gold: 50 m butterfly and 4×100 m freestyle relay; 2013 Barcelona SWI bronze: 4×100 m freestyle relay
Marcello Del Duca	ITA	WPO	1976	0–0–1 1975 Cali WAP bronze
Marco Del Lungo	ITA	WPO	2016—2020	1–0–0 2019 Gwangju WAP gold
Vangelis Delakas	GRE	WPO	2012—2016	0–0–1 2015 Kazan WAP bronze
Ash Delaney	AUS	SWM	2008	0–1–1 2009 Roma SWI bronze: 4×100 m medley relay; 2013 Barcelona SWI silver: 4×100 m medley relay
Nikolaos Deligiannis	GRE	WPO	2000—2012	0–0–1 2005 Montréal WAP bronze
Rick DeMont	USA	SWM	1972	1–1–0 1973 Belgrade SWI gold: 400 m freestyle, silver: 1500 m freestyle
Yelena Dendeberova	RUS URS EUN	SWM	1988—1992	0–1–0 1986 Madrid SWI silver: 200 m medley (competed for the Soviet Union)
Helen Denman	AUS	SWM	1996	0–2–0 1998 Perth SWI silver: 100 m breaststroke and 4×100 m medley relay
Georgios Dervisis	GRE	WPO	2016—2020	0–0–1 2015 Kazan WAP bronze
Marie-Claude Deslières	CAN	Referee/WPO	2000—2020	0–1–0 1991 Perth WAP silver
Alexandre Despatie	CAN	DIV	2000—2012	3–3–2 2001 Fukuoka DIV silver: platform; 2003 Barcelona DIV gold: platform; 2005 Montréal DIV gold: 1 m springboard and 3 m springboard; 2007 Melbourne DIV silver: 3 m springboard and synchronized springboard; 2009 Roma DIV bronze: 3 m springboard and synchronized springboard
Jérémy Desplanches	SUI	SWM	2016—2020	0–1–0 2019 Gwangju SWI silver: 200 m medley
Gabriele Detti	ITA	SWM	2012—2020	1–0–2 2017 Budapest SWI gold: 800 m freestyle, bronze: 400 m freestyle; 2019 Gwangju SWI bronze: 400 m freestyle
Tamás Deutsch	HUN	SWM	1988—1996	0–0–2 1994 Roma SWI bronze: 100 m backstroke and 4×100 m medley relay
Andrea Dewar	CAN	WPO	2004	0–0–1 2001 Fukuoka WAP bronze
Francesco Di Fulvio	ITA	WPO	2016—2020	1–0–0 2019 Gwangju WAP gold
Tania Di Mario	ITA	WPO	2004—2016	1–1–1 2001 Fukuoka WAP gold; 2003 Barcelona WAP silver; 2015 Kazan WAP bronze
Klaus Dibiasi	ITA	DIV	1964—1976	2–2–0 1973 Belgrade DIV gold: platform, silver: 3 m springboard; 1975 Cali DIV gold: platform, silver: 3 m springboard
Edith van Dijk	NED	OWS	2008	3–2–4 1998 Perth SWI silver: 5 km open water, bronze: 25 km open water; 2001 Fukuoka SWI silver: 25 km open water, bronze: 10 km open water; 2003 Barcelona SWI gold: 25 km open water, bronze: 10 km open water; 2005 Montréal SWI gold: 10 km open water and 25 km open water, bronze: 5 km open water
Margie Dingeldein	USA	WPO	2004	1–0–0 2003 Barcelona WAP gold
Valérie Dionne	CAN	WPO	2000—2004	0–0–2 2001 Fukuoka WAP bronze; 2005 Montréal WAP bronze
Maya DiRado	USA	SWM	2016	1–1–0 2013 Barcelona SWI gold: 4×200 m freestyle relay (swam in heats only); 2015 Kazan SWI silver: 400 m medley
Allan do Carmo	BRA	OWS	2008—2016	0–1–1 2013 Barcelona SWI bronze: 5 km open water team; 2015 Kazan SWI silver: 5 km open water team
Erin Dobratz	USA	SWA	2004	0–1–1 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team
Luminița Dobrescu	ROU	SWM	1988—1996	0–0–0 1991 Perth bronze: 4×50 m freestyle relay (demonstration event)
Aleksandr Dobroskok	RUS	DIV	2000—2008	2–0–2 2001 Fukuoka DIV bronze: 1 m springboard and synchronized springboard; 2003 Barcelona DIV gold: 3 m springboard and synchronized springboard
Dmitry Dobroskok	RUS	DIV	2004—2008	1–1–0 2005 Montréal DIV gold: synchronized platform; 2007 Melbourne DIV silver: synchronized platform
Nikša Dobud	CRO	WPO	2012	0–0–3 2009 Rome WAP bronze; 2011 Shanghai WAP bronze; 2013 Barcelona WAP bronze
István Dóczi	HUN	WPO	1992	0–0–1 1991 Perth WAP bronze
Teo Đogaš	CRO	WPO	2008	1–0–0 2007 Melbourne WAP gold
Tom Dolan	USA	SWM	1996—2000	2–0–0 1994 Roma SWI gold: 400 m medley; 1998 Perth SWI gold: 400 m medley
Aleksandr Dolgushin	RUS URS	WPO	1968—1976	1–0–0 1975 Cali WAP gold
Claire Donahue	USA	SWM	2012	1–0–0 2013 Barcelona SWI gold: 4×100 m medley relay (swam in heats only)
Jana Dörries	GER	SWM	1992	0–1–2 1991 Perth SWI silver: 100 m breaststroke, bronze: 200 m breaststroke and 4×100 m medley relay
Luca Dotto	ITA	SWM	2012—2016	0–1–1 2011 Shanghai SWI silver: 50 m freestyle; 2015 Kazan SWI bronze: 4×100 m freestyle relay
Mikhail Dovgalyuk	ROC RUS	SWM	2016—2020	0–2–0 2017 Budapest SWI silver: 4×200 m freestyle relay; 2019 Gwangju SWI silver: 4×200 m freestyle relay
Ann Dow	CAN	WPO	2000—2004	0–0–2 2001 Fukuoka WAP bronze; 2005 Montréal WAP bronze
Gordon Downie	GBR	SWM	1976	0–1–1 1975 Cali SWI silver: 4×200 m freestyle relay, bronze: 4×100 m medley relay
Duje Draganja	CRO	SWM	2000—2008	0–1–0 2005 Montréal SWI silver: 50 m freestyle
Yevgeny Drattsev	RUS	OWS	2008—2016	1–1–4 2005 Montréal SWI gold: 5 km open water team; 2007 Melbourne SWI silver: 5 km open water, bronze: 10 km open water; 2011 Shanghai SWI bronze: 5 km open water; 2013 Barcelona SWI bronze: 25 km open water; 2017 Budapest SWi bronze: 25 km open water
Rita Drávucz	HUN	WPO	2004—2012	1–1–0 2001 Fukuoka WAP silver; 2005 Montréal WAP gold
Caeleb Dressel	USA	SWM	2016—2020	13–2–0 2017 Budapest SWI gold: 50 m freestyle, 100 m freestyle, 100 m butterfly, 4×100 m freestyle relay, 4×100 m medley relay, 4×100 m freestyle mixed relay, and 4×100 m medley mixed relay; 2019 Gwangju SWI gold: 50 m freestyle, 100 m freestyle, 50 m butterfly, 100 m butterfly, 4×100 m freestyle relay, and 4×100 m freestyle mixed relay, silver: 4×100 m medley relay and 4×100 m medley mixed relay
Aleksandr Dreval	RUS URS	WPO	1972—1976	1–1–0 1973 Belgrade WAP silver; 1975 Cali WAP gold
Steffen Driesen	GER	SWM	2000—2004	0–1–1 2001 Fukuoka SWI silver: 4×100 m medley relay, bronze: 100 m backstroke
Hugues Duboscq	FRA	SWM	2000—2008	0–1–1 2005 Montréal SWI bronze: 100 m breaststroke; 2009 Roma SWI silver: 100 m breaststroke
Milena Duchková	CZE TCH	DIV	1968—1976	0–1–0 1973 Belgrade DIV silver: platform
Simon Dufour	FRA	SWM	2000—2008	0–0–1 2003 Barcelona SWI bronze: 200 m backstroke
Keltie Duggan	CAN	SWM	1988	0–0–0 1991 Perth bronze: 50 m breaststroke (demonstration event)
Dmitry Dugin	RUS	WPO	1996—2000	0–0–1 1994 Rome WAP bronze
Veselin Đuho	CRO YUG	WPO	1984—1988	1–0–0 1986 Madrid WAP gold
Justin Dumais	USA	DIV	2004	0–0–1 2005 Montréal DIV bronze: synchronized springboard
Troy Dumais	USA	DIV	2000—2012	0–4–1 1998 Perth DIV silver: 1 m springboard; 2005 Montréal DIV silver: 3 m springboard, bronze: synchronized springboard; 2009 Roma DIV silver: 3 m springboard and synchronized springboard
David Dunne	GBR	SWM	1976	0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay (swam in heats only)
Mary Beth Dunnichay	USA	DIV	2008	0–1–0 2009 Roma DIV silver: synchronized platform
Stéphanie Durocher	CAN	SWA	2012	0–0–1 2011 Shanghai SYN bronze: team Free Routine Combination
Nate Dusing	USA	SWM	2000—2004	1–2–1 2001 Fukuoka SWI bronze: 4×200 m freestyle relay; 2003 Barcelona SWI silver: 4×200 m freestyle relay and 4×100 m freestyle relay (swam in heats only); 2005 Montréal SWI gold: 4×100 m freestyle relay
Conor Dwyer	USA	SWM	2012—2016	3–3–1 2015 Kazan SWI gold: 4×100 m freestyle mixed relay (swam in heats only), silver: 4×200 m freestyle relay; 2017 Budapest SWI bronze: 4×200 m freestyle relay (swam in heats only)
Vladimir Dyatchin	RUS	OWS	2008—2012	2–2–2 2001 Fukuoka SWI silver: 10 km open water; 2003 Barcelona SWI gold: 10 km open water, bronze: 5 km open water; 2007 Melbourne SWI gold: 10 km open water; 2009 Roma SWI bronze: 25 km open water; 2011 Shanghai SWI silver: 25 km open water
Becky Dyroen-Lancer	USA	SWA	1996	4–0–0 1991 Perth SYN gold: team (competed as Becky Dyroen); 1994 Roma SYN gold: solo, duet, and team
Gonzalo Echenique	ITA ESP	WPO	2016—2020	1–0–0 2019 Gwangju WAP gold (competed for Italy)
Sophie Edington	AUS	SWM	2008	2–0–1 2003 Barcelona SWI bronze: 4×100 m freestyle relay (swam in heats only); 2005 Montréal SWI gold: 4×100 m medley relay and 4×100 m freestyle relay (swam in heats only)
Ian Edmond	GBR	SWM	2004	0–1–0 2003 Barcelona SWI silver: 200 m breaststroke
Krisztina Egerszegi	HUN	SWM	1988—2001	2–1–0 1991 Perth SWI gold: 100 m backstroke and 200 m backstroke, silver: 200 m backstroke
Sylvia Eichner	GDR	SWM	1972	1–0–0 1973 Belgrade SWI gold: 4×100 m freestyle relay
Andrea Eife	GDR	SWM	1972	1–0–1 1973 Belgrade SWI SWI gold: 4×100 m freestyle relay, bronze: 200 m freestyle
Brittany Elmslie	AUS	SWM	2012—2016	0–3–0 2013 Barcelona SWI silver: 4×200 m freestyle relay and silver: 4×100 m freestyle relay (swam in heats only); 2017 Budapest SWI silver: 4×100 m freestyle relay
Janet Ely	USA	DIV	1972—1976	1–0–0 1975 Cali DIV gold: platform
Giulia Emmolo	ITA	WPO	2012—2016	0–0–1 2015 Kazan WAP bronze
Kornelia Ender	GDR	SWM	1972—1976	8–2–0 1973 Belgrade SWI gold: 100 m freestyle, 100 m butterfly, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 200 m medley; 1975 Cali SWI gold: 100 m freestyle, 100 m butterfly, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 200 m freestyle
Balázs Erdélyi	HUN	WPO	2016—2020	0–1–0 2017 Budapest WAP silver
Anthony Ervin	USA	SWM	2000—2016	2–1–0 2001 Fukuoka SWI gold: 50 m freestyle and 100 m freestyle; 2013 Barcelona SWI silver: 4×100 m freestyle relay
Albert Español	ESP	WPO	2012—2016	0–1–0 2009 Rome WAP silver
Anna Espar	ESP	WPO	2012—2020	1–2–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver; 2019 Gwangju WAP silver
Clara Espar	ESP	WPO	2016—2020	0–2–0 2017 Budapest WAP silver; 2019 Gwangju WAP silver
Paola Espinosa	MEX	DIV	2004—2016	1–0–3 2003 Barcelona DIV bronze: synchronized springboard; 2009 Roma DIV gold: platform; 2011 Shanghai DIV bronze: platform; 2019 Gwangju DIV bronze: synchronized springboard
Franck Esposito	FRA	SWM	1992—2004	0–1–0 1998 Perth SWI silver: 200 m butterfly
Laura Ester	ESP	WPO	2012—2020	1–2–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver; 2019 Gwangju WAP silver
Ellen Estes	USA	WPO	2000—2004	1–0–0 2003 Barcelona WAP gold
Manuel Estiarte	ESP	IOC/WPO	1980—2004	1–2–0 1991 Perth WAP silver; 1994 Rome WAP silver; 1998 Perth WAP gold
Sarah Evanetz	CAN	SWM	1996	0–0–0 1991 Perth silver: 4×50 m freestyle relay (demonstration event); 1991 Perth bronze: 50 m butterfly (demonstration event)
Blair Evans	AUS	SWM	2012—2016	0–1–0 2011 Shanghai SWI silver: 4×200 m freestyle relay
Janet Evans	USA	SWM	1988—1996	3–1–1 1991 Perth SWI gold: 400 m freestyle and 800 m freestyle, silver: 200 m freestyle; 1994 Roma SWI gold: 800 m freestyle, bronze: 4×200 m freestyle relay
Loris Facci	ITA	SWM	2004—2008	0–0–1 2007 Melbourne SWI bronze: 200 m breaststroke
Thomas Fahrner	FRG	SWM	1984—1988	0–1–0 1986 Madrid SWI silver: 4×200 m freestyle relay
Grigory Falko	RUS	SWM	2004—2008	0–1–0 2005 Montréal SWI silver: 4×100 m medley relay (swam in heats only)
Tamás Faragó	HUN	WPO	1972—1980	1–2–0 1973 Belgrade WAP gold; 1975 Cali WAP silver; 1978 West Berlin WAP silver
Jo Fargus	GBR	SWM	2000	0–0–1 2001 Fukuoka SWI bronze: 200 m backstroke
Rachel Fattal	USA	WPO	2016—2020	3–0–0 2015 Kazan WAP gold; 2017 Budapest WAP gold; 2019 Gwangju WAP gold
Aleksandr Fedorov	RUS	WPO	2004	0–0–1 2001 Fukuoka WAP bronze
Olena Fedorova	UKR	DIV	2004—2016	0–0–1 2005 Montréal DIV bronze: synchronized springboard
Jimmy Feigen	USA	SWM	2012—2016	0–2–0 2013 Barcelona SWI silver: 100 m freestyle and 4×100 m freestyle relay
Hendrik Feldwehr	GER	SWM	2012	0–1–2 2009 Roma SWI silver: 4×100 m medley relay; 2011 Shanghai SWI bronze: 4×100 m medley relay; 2015 Kazan SWI bronze: 4×100 m medley mixed relay
Maurizio Felugo	ITA	WPO	2004—2012	1–1–0 2003 Barcelona WAP silver; 2011 Shanghai WAP gold
Kent Ferguson	USA	DIV	1992	1–0–0 1991 Perth DIV gold: 3 m springboard
Fran Fernández	ESP	WPO	2016—2020	0–1–0 2019 Gwangju WAP silver
Teófilo Ferreira	BRA	SWM	1992	0–0–1 1994 Roma SWI bronze: 4×100 m freestyle relay
Massimiliano Ferretti	ITA	WPO	1988—1992	1–1–0 1986 Madrid WAP silver; 1994 Rome WAP gold
Costanza Ferro	ITA	SWA	2016—2020	0–1–0 2019 Gwangju SYN silver: team Highlight Routine
Sergey Fesenko	URS UKR	SWM	1980	0–2–1 1978 West Berlin SWI silver: 400 m medley (competed for the Soviet Union); 1982 Guayaquil SWI silver: 200 m butterfly, bronze: 400 m medley (competed for the Soviet Union)
Leigh Ann Fetter	USA	SWM	1988	0–1–0 1991 Perth SWI silver: 50 m freestyle
Nick Ffrost	AUS	SWM	2008	0–1–1 2007 Melbourne SWI silver: 4×200 m freestyle relay (swam in heats only); 2009 Roma SWI bronze: 4×200 m freestyle relay (swam in heats only)
Pietro Figlioli	AUS ITA	WPO	2004—2020	2–0–0 2011 Shanghai WAP gold (competed for Italy); 2019 Gwangju WAP gold (competed for Italy)
Solenne Figuès	FRA	SWM	1996—2004	1–0–0 2005 Montréal SWI gold: 200 m freestyle
Roseline Filion	CAN	DIV	2008—2016	0–2–1 2005 Montréal DIV bronze: synchronized platform; 2013 Barcelona DIV silver: synchronized platform; 2015 Kazan DIV silver: synchronized platform
Aleksey Filipets	RUS	SWM	2000—2004	0–0–1 2001 Fukuoka SWI bronze: 1500 m freestyle
Filip Filipović	SRB	WPO	2008—2020	2–1–1 2009 Rome WAP gold; 2011 Shanghai WAP silver; 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Alessia Filippi	ITA	SWM	2004—2012	1–0–1 2009 Roma SWI gold: 1500 m freestyle; 2009 Roma SWI bronze: 800 m freestyle
Thomas Finchum	USA	DIV	2008	0–1–1 2007 Melbourne DIV bronze: synchronized platform; 2009 Roma DIV silver: synchronized platform
Bridget Finn	USA	SWA	2000	0–0–1 1998 Perth SYN bronze: team
Domenico Fioravanti	ITA	SWM	2000	0–1–1 2001 Fukuoka SWI silver: 100 m breaststroke, bronze: 50 m breaststroke
Deni Fiorentini	ITA	WPO	2012	1–0–0 2011 Shanghai WAP gold
Goran Fiorentini	ITA	WPO	2004	0–1–0 2003 Barcelona WAP silver
Mario Fiorillo	ITA	WPO	1984—1992	1–1–0 1986 Madrid WAP silver; 1994 Rome WAP gold
Aria Fischer	USA	WPO	2016—2020	2–0–0 2017 Budapest WAP gold; 2019 Gwangju WAP gold
Heike Fischer	GER	DIV	2004—2008	0–1–1 2005 Montréal DIV bronze: 1 m springboard; 2007 Melbourne DIV silver: synchronized springboard
Makenzie Fischer	USA	WPO	2016—2020	3–0–0 2015 Kazan WAP gold; 2017 Budapest WAP gold; 2019 Gwangju WAP gold
Manila Flamini	ITA	SWA	2016	1–2–1 2015 Kazan SYN bronze: duet Technical (mixed); 2017 Budapest SYN gold: duet Technical (mixed); 2019 Gwangju SYN silver: duet Technical (mixed) and duet Free (mixed)
Konstantinos Flegkas	GRE	WPO	2016	0–0–1 2015 Kazan WAP bronze
Thomas Flemming	GDR	SWM	1988	1–0–0 1986 Madrid SWI gold: 4×200 m freestyle relay
Hali Flickinger	USA	SWM	2016—2020	1–1–0 2017 Budapest SWI gold: 4×200 m freestyle relay (swam in heats only); 2019 Gwangju SWI silver: 200 m butterfly
Jeff Float	USA	SWM	1984	1–1–0 1978 West Berlin SWI silver: 400 m freestyle; 1982 Guayaquil SWI gold: 4×200 m freestyle relay
Hartmut Flöckner	GDR	SWM	1972—1976	0–1–2 1973 Belgrade SWI silver: 4×100 m medley relay, bronze: 200 m butterfly and 4×100 m freestyle relay
Rajmund Fodor	HUN	WPO	1996—2004	1–3–0 1998 Perth WAP silver; 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP silver
Lynda Folauhola	AUS	DIV	2004	0–1–0 2003 Barcelona DIV silver: synchronized platform (competed as Lynda Dackiw)
Massimo Fondelli	ITA	WPO	1980	1–0–0 1978 West Berlin WAP gold
Karen Fonteyne	CAN	SWA	1996	0–2–0 1991 Perth SYN silver: team; 1994 Roma SYN silver: team
Judith Forca	ESP	WPO	2016—2020	0–2–0 2017 Budapest WAP silver; 2019 Gwangju WAP silver
Marco Formentini	ITA	SWM	1996	0–1–2 2001 Fukuoka SWI bronze: 5 km open water; 2005 Montréal SWI bronze: 25 km open water team; 2007 Melbourne SWI silver: 25 km open water
Bill Forrester	USA	SWM	1976	4–0–2 1975 Cali SWI gold: 4×100 m medley relay (swam in heats only), bronze: 100 m butterfly; 1978 West Berlin SWI gold: 200 m freestyle and 4×200 m freestyle relay, bronze: 400 m freestyle
Jo-Annie Fortin	CAN	SWA	2012	0–0–2 2009 Roma SYN bronze: team Free Routine Combination; 2011 Shanghai SYN bronze: team Free Routine Combination
Mark Foster	GBR	SWM	1988—2008	0–1–1 2001 Fukuoka SWI bronze: 50 m butterfly; 2003 Barcelona SWI silver: 50 m freestyle
Sally Foster	AUS	SWM	2008—2012	1–2–1 2007 Melbourne SWI gold: 4×100 m freestyle relay (swam in heats only); 2009 Roma SWI silver: 4×100 m medley relay (swam in heats only), bronze: 4×100 m freestyle relay (swam in heats only); 2013 Barcelona SWI silver: 4×100 m medley relay
Giannis Fountoulis	GRE	WPO	2012—2020	0–0–1 2015 Kazan WAP bronze
Catherine Fox	USA	SWM	1996	1–0–0 1998 Perth SWI gold: 4×100 m freestyle relay (swam in heats only)
Linley Frame	AUS	SWM	1992	1–2–0 1991 Perth SWI gold: 100 m breaststroke, silver: 200 m breaststroke and 4×100 m medley relay
Felipe França	BRA	SWM	2008—2016	1–1–0 2009 Roma SWI silver: 50 m breaststroke; 2011 Shanghai SWI gold: 50 m breaststroke
Giovanni Franceschi	ITA	SWM	1980—1984	0–0–1 1982 Guayaquil SWI bronze: 200 m medley
Jacqueline Frank	USA	WPO	2004	1–0–0 2003 Barcelona WAP gold
Angela Franke	GDR	SWM	1972	1–1–1 1973 Belgrade SWI gold: 4×100 m freestyle relay (swam in heats only), silver: 400 m medley; 1975 Cali SWI bronze: 200 m medley
Missy Franklin	USA	SWM	2012—2016	11–2–3 2011 Shanghai SWI gold: 200 m backstroke, 4×200 m freestyle relay, and 4×100 m medley relay, silver: 4×100 m freestyle relay, bronze: 50 m backstroke; 2013 Barcelona SWI gold: 200 m freestyle, 100 m backstroke, 200 m backstroke, 4×100 m freestyle relay, 4×200 m freestyle relay, and: 4×100 m medley relay; 2015 Kazan SWI gold: 4×200 m freestyle relay and 4×100 m freestyle mixed relay, silver: 200 m backstroke, bronze: 200 m freestyle and 4×100 m freestyle relay
Thomas Fraser-Holmes	AUS	SWM	2012—2016	1–0–1 2015 Kazan SWI bronze: 4×200 m freestyle relay; 2019 Gwangju SWI gold: 4×200 m freestyle relay (swam in heats only)
Suzie Fraser	AUS	WPO	2008	0–1–0 2007 Melbourne WAP silver
Teresa Frassinetti	ITA	WPO	2008—2016	0–0–1 2015 Kazan WAP bronze
Bruno Fratus	BRA	SWM	2012—2020	0–3–1 2015 Kazan SWI bronze: 50 m freestyle; 2017 Budapest SWI silver: 50 m freestyle and 4×100 m freestyle relay; 2019 Gwangju SWI silver: 50 m freestyle
Sylvie Fréchette	CAN	SWA	1992—1996	2–0–0 1986 Madrid SYN gold: team; 1991 Perth SYN gold: solo
Meike Freitag	GER	SWM	1996—2008	1–3–0 2001 Fukuoka SWI gold: 4×100 m freestyle relay (swam in heats only), silver: 4×200 m freestyle relay; 2005 Montréal SWI silver: 4×100 m freestyle relay (swam in heats only); 2007 Melbourne SWI silver: 4×200 m freestyle relay
Roland Freund	FRG	WPO	1976—1984	0–0–1 1982 Guayaquil WAP bronze
Heike Friedrich	GDR	SWM	1988	4–0–0 1986 Madrid SWI gold: 200 m freestyle, 400 m freestyle, 4×100 m freestyle relay, and 4×200 m freestyle relay
Lotte Friis	DEN	SWM	2008—2016	2–4–0 2009 Roma SWI gold: 800 m freestyle, silver: 1500 m freestyle; 2011 Shanghai SWI gold: 1500 m freestyle, silver: 800 m freestyle; 2013 Barcelona SWI silver: 800 m freestyle and 1500 m freestyle
Lars Frölander	SWE	SWM	1992—2012	2–2–2 1994 Roma SWI gold: 4×200 m freestyle relay; 1998 Perth SWI silver: 100 m butterfly, bronze: 100 m freestyle; 2001 Fukuoka SWI gold: 100 m butterfly, silver: 50 m butterfly, bronze: 100 m freestyle
Fu Mingxia	CHN	DIV	1992—2000	2–0–0 1991 Perth DIV gold: platform; 1994 Roma DIV gold: platform
Fu Yuanhui	CHN	SWM	2012—2016	2–2–0 2013 Barcelona SWI silver: 50 m backstroke; 2015 Kazan SWI gold: 50 m backstroke and 4×100 m medley relay; 2017 Budapest SWI silver: 50 m backstroke
Andrea Fuentes	ESP	SWA	2004—2012	1–7–8 2003 Barcelona SYN silver: team Free Routine Combination; 2005 Montréal SYN bronze: team and team Free Routine Combination; 2007 Melbourne SYN silver: team Free, bronze: team Technical; 2009 Roma SYN gold: team Free Routine Combination, silver: duet Technical, duet Free, team Technical, and team Free; 2011 Shanghai SYN silver: solo Free, bronze: solo Technical, duet Technical, duet Free, team Technical, and team Free
Tina Fuentes	ESP	SWA	2004	0–2–3 2003 Barcelona SYN silver: team Free Routine Combination; 2005 Montréal SYN bronze: team and team Free Routine Combination; 2007 Melbourne SYN silver: team Free, bronze: team Technical
Raika Fujii	JPN	SWA	1996—2000	0–1–1 1994 Roma SYN bronze: team; 1998 Perth SYN silver: team
Takuro Fujii	JPN	SWM	2008—2016	0–0–1 2013 Barcelona SWI bronze: 4×100 m medley relay
Michiyo Fujimaru	JPN	SWA	2004	1–2–0 2001 Fukuoka SYN silver: team; 2003 Barcelona SYN gold: team Free Routine Combination, silver: team
Kazuno Fujiwara	JPN	SWA	1984	0–0–1 1982 Guayaquil SYN bronze: team
Bruce Furniss	USA	SWM	1976	2–2–0 1975 Cali SWI gold: 4×100 m freestyle relay, silver: 200 m freestyle and 400 m freestyle; 1978 West Berlin SWI gold: 4×200 m freestyle relay
Steve Furniss	USA	SWM	1972—1976	0–1–0 1975 Cali SWI silver: 200 m medley
Chris Fydler	AUS	SWM	1992—2000	1–1–0 1998 Perth SWI gold: 4×100 m medley relay, silver: 4×100 m freestyle relay
Rowdy Gaines	USA	SWM	1984	6–3–0 1978 West Berlin SWI gold: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay (swam in heats only), silver: 200 m freestyle; 1982 Guayaquil SWI gold: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay; 1982 Guayaquil SWI silver: 100 m freestyle and 200 m freestyle
Stefanos Galanopoulos	GRE	WPO	2016	0–0–1 2015 Kazan WAP bronze
Christian Galenda	ITA	SWM	2004—2008	0–1–0 2007 Melbourne SWI silver: 4×100 m freestyle relay
Rebecca Gallantree	GBR	DIV	2008—2016	1–0–0 2015 Kazan DIV gold: team
Iván Gallego	ESP	WPO	2008	0–1–1 2007 Melbourne WAP bronze; 2009 Rome WAP silver
Marco Galli	ITA	WPO	1984	1–0–0 1978 West Berlin WAP gold
Valentino Gallo	ITA	WPO	2008—2016	1–0–0 2011 Shanghai WAP gold
Gleb Galperin	RUS	DIV	2004—2012	2–1–1 2005 Montréal DIV gold: synchronized platform, bronze: platform; 2007 Melbourne DIV gold: platform, silver: synchronized platform
Felicity Galvez	AUS	SWM	2004—2008	2–0–1 2005 Montréal SWI gold: 4×100 m medley relay (swam in heats only); 2007 Melbourne SWI gold: 4×100 m medley relay (swam in heats only); 2009 Roma SWI bronze: 4×100 m freestyle relay
Annett Gamm	GER	DIV	2004—2008	0–0–1 2007 Melbourne DIV bronze: synchronized platform
Ferdinando Gandolfi	ITA	WPO	1992	1–0–0 1994 Rome WAP gold
Ellen Gandy	GBR	SWM	2008—2012	0–1–0 2011 Shanghai SWI silver: 200 m butterfly
Mark Gangloff	USA	SWM	2004—2008	3–1–1 2005 Montréal SWI gold: 4×100 m medley relay (swam in heats only), silver: 50 m breaststroke; 2009 Roma SWI gold: 4×100 m medley relay (swam in heats only), bronze: 50 m breaststroke; 2011 Shanghai SWI gold: 4×100 m medley relay
Gao Chang	CHN	SWM	2004—2012	0–2–1 2005 Montréal SWI silver: 50 m backstroke; 2009 Roma SWI bronze: 50 m backstroke; 2011 Shanghai SWI silver: 4×100 m medley relay (swam in heats only)
Gao Min	CHN	DIV	1988—1992	3–0–0 1986 Madrid DIV gold: 3 m springboard; 1991 Perth DIV gold: 1 m springboard and 3 m springboard
Nancy Garapick	CAN	SWM	1976	0–1–2 1975 Cali SWI silver: 200 m backstroke, bronze: 100 m backstroke; 1978 West Berlin SWI bronze: 4×100 m freestyle relay
Sergey Garbuzov	RUS	WPO	1996—2004	0–0–2 1994 Rome WAP bronze; 2001 Fukuoka WAP bronze
Catherine Garceau	CAN	SWA	2000	0–0–1 2001 Fukuoka SYN bronze: team
Iván García	MEX	DIV	2010—2020	0–1–0 2015 Kazan DIV silver: synchronized platform
Maica García	ESP	WPO	2012—2020	1–1–0 2013 Barcelona WAP gold; 2019 Gwangju WAP silver
Mario José García	ESP	WPO	2008—2012	0–1–1 2007 Melbourne WAP bronze; 2009 Rome WAP silver
Pedro García	ESP	WPO	1988—2000	1–2–0 1991 Perth WAP silver; 1994 Rome WAP silver; 1998 Perth WAP gold
Xavier García	CRO ESP	WPO	2004—2020	1–1–2 2007 Melbourne WAP bronze (competed for Spain); 2009 Rome WAP silver (competed for Spain); 2017 Budapest WAP gold (competed for Croatia); 2019 Gwangju WAP bronze (competed for Croatia)
Krisztina Garda	HUN	WPO	2016—2020	0–0–1 2013 Barcelona WAP bronze
Sue Gardiner	CAN	WPO	2000—2004	0–0–2 2001 Fukuoka WAP bronze; 2005 Montréal WAP bronze
Arianna Garibotti	ITA	WPO	2016	0–0–1 2015 Kazan WAP bronze
Béryl Gastaldello	FRA	SWM	2016—2020	0–0–1 2019 Gwangju SWI bronze: 4×100 m freestyle mixed relay (swam in heats only)
HaJo Geisler	FRG	SWM	1972—1976	1–0–1 1975 Cali SWI gold: 4×200 m freestyle relay, bronze: 400 m medley
Ines Geißler	GDR	SWM	1980	2–1–0 1982 Guayaquil SWI gold: 200 m butterfly and 4×100 m medley relay, silver: 100 m butterfly
Andrew Gemmell	USA	SWM	2012	1–1–0 2009 Roma SWI silver: 10 km open water; 2011 Shanghai SWI gold: 5 km open water team
Konstantinos Genidounias	GRE	WPO	2016—2020	0–0–1 2015 Kazan WAP bronze
Sylvia Gerasch	GER	SWM	2000	2–0–0 1986 Madrid SWI gold: 100 m breaststroke and 4×100 m medley relay (competed for East Germany)
Irina Gerasimova	GEO URS	SWM	1980	0–0–1 1982 Guayaquil SWI bronze: 4×100 m medley relay
Csaba Gercsák	HUN	OWS	2008—2012	0–0–1 2011 Shanghai SWI bronze: 25 km open water
György Gerendás	HUN	WPO	1976—1980	0–2–0 1978 West Berlin WAP silver; 1982 Guayaquil WAP silver
István Gergely	HUN SVK	WPO	2000—2008	1–1–0 2003 Barcelona WAP gold (competed for Hungary); 2005 Montréal WAP silver (competed for Hungary)
Marco Gerini	ITA	WPO	1996—2004	0–1–0 2003 Barcelona WAP silver
Angeliki Gerolymou	GRE	WPO	2008	1–0–0 2011 Shanghai WAP gold
Christian Geßner	GER	SWM	1992	0–0–1 1991 Perth SWI bronze: 200 m medley
Ute Geweniger	GDR	SWM	1980	2–2–0 1982 Guayaquil SWI gold: 100 m breaststroke and 4×100 m medley relay, silver: 200 m breaststroke and 200 m medley
Alessandro Ghibellini	ITA	WPO	1968—1976	1–0–1 1975 Cali WAP bronze; 1978 West Berlin WAP gold
Spyros Gianniotis	GRE	OWS/SWM	2000—2016	2–3–2 2007 Melbourne SWI bronze: 5 km open water; 2009 Roma SWI silver: 5 km open water; 2011 Shanghai SWI gold: 10 km open water, silver: 5 km open water; 2013 Barcelona SWI gold: 10 km open water, silver: 5 km open water team; 2015 Kazan SWI bronze: 10 km open water
Cheryl Gibson	CAN	SWM	1976	0–0–2 1978 West Berlin SWI bronze: 100 m backstroke and 200 m backstroke
James Gibson	GBR	SWM	2004	1–0–1 2003 Barcelona SWI gold: 50 m breaststroke, bronze: 100 m breaststroke
Kaleigh Gilchrist	USA	WPO	2016—2020	2–0–0 2015 Kazan WAP gold; 2019 Gwangju WAP gold
Nick Gillingham	GBR	SWM	1988—1996	0–0–1 1991 Perth SWI bronze: 200 m breaststroke
Fabien Gilot	FRA	SWM	2004—2016	3–2–4 2003 Barcelona SWI bronze: 4×100 m freestyle relay; 2007 Melbourne SWI bronze: 4×100 m freestyle relay; 2009 Roma SWI bronze: 4×100 m freestyle relay; 2011 Shanghai SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay; 2013 Barcelona SWI gold: 4×100 m freestyle relay and 4×100 m medley relay; 2015 Kazan SWI gold: 4×100 m freestyle relay, bronze: 4×100 m medley relay
Bengt Gingsjö	SWE	SWM	1972—1976	0–0–1 1973 Belgrade SWI bronze: 400 m freestyle
Alex Giorgetti	ITA	WPO	2012	1–0–0 2011 Shanghai WAP gold
Carlos Girón	MEX	DIV	1972—1984	0–0–1 1975 Cali DIV bronze: platform
Niccolò Gitto	ITA	WPO	2012—2016	1–0–0 2011 Shanghai WAP gold
Doug Gjertsen	USA	SWM	1988—1992	1–1–0 1991 Perth SWI gold: 4×100 m freestyle relay, silver: 4×200 m freestyle relay
Jan-Philip Glania	GER	SWM	2012—2016	0–0–1 2015 Kazan SWI bronze: 4×100 m medley mixed relay
Roberto Gleria	ITA	SWM	1988—1992	0–0–1 1991 Perth SWI bronze: 4×200 m freestyle relay
Nadezhda Glyzina-Fedotova	ROC RUS	WPO	2008—2020	0–0–3 2007 Melbourne WAP bronze (competed as Nadezhda Glyzina); 2009 Rome WAP bronze (competed as Nadezhda Glyzina); 2011 Shanghai WAP bronze (competed as Nadezhda Fedotova)
Živko Gocić	SRB	WPO	2008—2016	2–1–0 2009 Rome WAP gold; 2011 Shanghai WAP silver; 2015 Kazan WAP gold
Keesja Gofers	AUS	WPO	2016—2020	0–1–1 2013 Barcelona WAP silver; 2019 Gwangju WAP bronze
Taniele Gofers	AUS	WPO	2008	0–1–0 2007 Melbourne WAP silver
Vladimir Gojković	MNE SCG	Coach/WPO	2004—2020	1–0–1 2003 Barcelona WAP bronze (competed for Serbia and Montenegro); 2005 Montréal WAP gold (competed for Serbia and Montenegro)
Natalie Golda	USA	WPO	2004—2008	2–1–0 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP gold
Scott Goldblatt	USA	SWM	2000—2004	0–1–1 2001 Fukuoka SWI bronze: 4×200 m freestyle relay; 2003 Barcelona SWI silver: 4×200 m freestyle relay (swam in heats only)
Kristian Golomeev	GRE	SWM	2012—2020	0–1–0 2019 Gwangju SWI silver: 50 m freestyle
João Gomes Júnior	BRA	SWM	2016	0–1–1 2017 Budapest SWI silver: 50 m breaststroke; 2019 Gwangju SWI bronze: 50 m breaststroke
Salvador Gómez	ESP	WPO	1988—2004	2–2–0 1991 Perth WAP silver; 1994 Rome WAP silver; 1998 Perth WAP gold; 2001 Fukuoka WAP gold
Marco Antonio González	ESP	WPO	1988—1992	0–1–0 1991 Perth WAP silver
Brian Goodell	USA	SWM	1976	0–1–0 1975 Cali SWI silver: 1500 m freestyle
Daniel Goodfellow	GBR	DIV	2016—2020	0–1–0 2019 Gwangju DIV silver: synchronized springboard
Duncan Goodhew	GBR	SWM	1976—1980	0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay
Larisa Gorchakova	RUS URS	SWM	1980	0–0–1 1982 Guayaquil SWI bronze: 4×100 m medley relay
István Görgényi	HUN	WPO	1972	1–1–0 1973 Belgrade WAP gold; 1975 Cali WAP silver
Giulia Gorlero	ITA	WPO	2012—2016	0–0–1 2015 Kazan WAP bronze
Melissa Gorman	AUS	OWS/SWM	2008—2012	1–1–0 2009 Roma SWI gold: 5 km open water; 2011 Shanghai SWI silver: 5 km open water team
Dmitry Gorshkov	RUS EUN	WPO	1992—2004	0–0–2 1994 Rome WAP bronze (competed for Russia); 2001 Fukuoka WAP bronze (competed for Russia)
Sandy Goss	CAN	SWM	1984—1988	0–0–0 1991 Perth silver: 4×50 m freestyle relay (swam in heats only) (demonstration event)
Daniela Götz	GER	SWM	2004—2008	0–2–1 2003 Barcelona SWI silver: 4×100 m freestyle relay (swam in heats only); 2005 Montréal SWI silver: 4×100 m freestyle relay; 2005 Montréal SWI bronze: 4×100 m medley relay
Janina-Kristin Götz	GER	SWM	2004	1–0–0 1998 Perth SWI gold: 4×200 m freestyle relay (swam in heats only)
Alexandros Gounas	GRE	WPO	2016	0–0–1 2015 Kazan WAP bronze
Federico Grabich	ARG	SWM	2012—2016	0–0–1 2015 Kazan SWI bronze: 100 m freestyle
Elka Graham	AUS	SWM	2000—2004	1–1–1 2001 Fukuoka SWI gold: 4×100 m medley relay (swam in heats only); 2003 Barcelona SWI silver: 4×200 m freestyle relay, bronze: 4×100 m freestyle relay
Lara Grangeon de Villèle	FRA	OWS/SWM	2012—2020	0–0–1 2019 Gwangju SWI bronze: 25 km open water
Andrey Grechin	RUS	SWM	2008—2016	0–2–1 2009 Roma SWI silver: 4×100 m freestyle relay; 2013 Barcelona SWI bronze: 4×100 m freestyle relay; 2015 Kazan SWI silver: 4×100 m freestyle relay
Luke Greenbank	GBR	SWM	2014—2020	1–0–1 2019 Gwangju SWI gold: 4×100 m medley relay, bronze: 200 m backstroke
Steve Gregg	USA	SWM	1976	0–2–0 1973 Belgrade SWI silver: 200 m butterfly; 1978 West Berlin SWI silver: 200 m butterfly
Melania Grego	ITA	WPO	2004	2–1–1 1994 Rome WAP bronze; 1998 Perth WAP gold; 2001 Fukuoka WAP gold; 2003 Barcelona WAP silver
Alison Gregorka	USA	WPO	2008	2–0–0 2007 Melbourne WAP gold; 2009 Rome WAP gold
Matt Grevers	USA	SWM	2008—2012	6–5–2 2009 Roma SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only); 2013 Barcelona SWI gold: 100 m backstroke, silver: 50 m backstroke; 2015 Kazan SWI gold: 4×100 m medley relay (swam in heats only), silver: 50 m backstroke, bronze: 100 m backstroke; 2017 Budapest SWI gold: 4×100 m medley relay and 4×100 m medley mixed relay, silver: 100 m backstroke, bronze: 50 m backstroke; 2019 Gwangju SWI silver: 4×100 m medley relay (swam in heats only) and 4×100 m medley mixed relay (swam in heats only)
Julia Greville	AUS	SWM	1996	0–0–2 1998 Perth SWI bronze: 200 m freestyle and 4×200 m freestyle relay
Matt Gribble	USA	SWM	1984	3–0–0 1982 Guayaquil SWI gold: 100 m butterfly, 4×100 m medley relay, and 4×100 m freestyle relay (swam in heats only)
Angelika Grieser	FRG	SWM	1976	0–0–1 1973 Belgrade SWI bronze: 4×100 m medley relay
Aristidis Grigoriadis	GRE	SWM	2004—2012	1–0–0 2005 Montréal SWI gold: 50 m backstroke
Martina Grimaldi	ITA	OWS	2008—2012	1–1–1 2009 Roma SWI bronze: 10 km open water; 2011 Shanghai SWI silver: 10 km open water; 2013 Barcelona SWI gold: 25 km open water
Alla Grishchenkova	RUS URS	SWM	1980	0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay (swam in heats only)
Yevgeny Grishin	RUS URS	WPO	1980—1988	0–0–1 1986 Madrid WAP bronze
Igor Grivennikov	RUS URS	SWM	1972	0–1–0 1973 Belgrade SWI silver: 4×100 m freestyle relay
Mariya Gromova	RUS	SWA	2004—2012	9–0–0 2001 Fukuoka SYN gold: team; 2003 Barcelona SYN gold: team; 2005 Montréal SYN gold: team and team Free Routine Combination; 2007 Melbourne SYN gold: team Technical, team Free, and team Free Routine Combination; 2011 Shanghai SYN gold: team Technical and team Free Routine Combination
Chantal Groot	NED	SWM	2000—2008	0–0–1 2007 Melbourne SWI bronze: 4×100 m freestyle relay (swam in heats only)
Michael Groß	FRG	SWM	1984—1988	5–5–3 1982 Guayaquil SWI gold: 200 m freestyle and 200 m butterfly, silver: 100 m butterfly, bronze: 4×200 m freestyle relay and 4×100 m medley relay; 1986 Madrid SWI gold: 200 m freestyle and 200 m butterfly, silver: 4×200 m freestyle relay and 4×100 m medley relay; 1991 Perth SWI gold: 4×200 m freestyle relay, silver: 100 m butterfly and 200 m butterfly, bronze: 4×100 m medley relay (competed for Germany)
Kurt Grote	USA	SWM	1996	1–1–1 1998 Perth SWI gold: 200 m breaststroke, silver: 4×100 m medley relay, bronze: 100 m breaststroke
Madeline Groves	AUS	SWM	2016	0–0–1 2015 Kazan SWI bronze: 4×100 m medley relay (swam in heats only)
Gu Xiao	CHN	SWA	2016	0–3–0 2015 Kazan SYN silver: team Technical, team Free, and team Free Routine Combination
Marcello Guarducci	ITA	SWM	1972—1984	0–0–1 1975 Cali SWI bronze: 4×100 m freestyle relay
Marieke Guehrer	AUS	SWM	2004	1–0–1 2009 Roma SWI gold: 50 m butterfly, bronze: 4×100 m freestyle relay
José Antonio Guerra	CUB	DIV	2000—2012	0–1–1 2005 Montréal DIV silver: platform; 2009 Roma DIV bronze: synchronized platform
Guo Jingjing	CHN	DIV	1996—2008	10–1–0 1998 Perth DIV silver: 3 m springboard; 2001 Fukuoka DIV gold: 3 m springboard and synchronized springboard; 2003 Barcelona DIV gold: 3 m springboard and synchronized springboard; 2005 Montréal DIV gold: 3 m springboard and synchronized springboard; 2007 Melbourne DIV gold: 3 m springboard and gold: synchronized springboard; 2009 Roma DIV gold: 3 m springboard and synchronized springboard
Guo Li	CHN	SWA	2016—2020	1–9–0 2011 Shanghai SYN silver: team Free Routine Combination; 2015 Kazan SYN silver: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN gold: team Free Routine Combination, silver: team Technical and team Free; 2019 Gwangju SYN silver: team Technical, team Free, and team Free Routine Combination
Bridgette Gusterson	AUS	WPO	2000	0–0–1 1998 Perth WAP bronze
Károly Güttler	HUN	SWM	1988—2000	0–1–1 1994 Roma SWI silver: 100 m breaststroke, bronze: 200 m breaststroke
James Guy	GBR	SWM	2016—2020	4–2–2 2015 Kazan SWI gold: 200 m freestyle and 4×200 m freestyle relay, silver: 400 m freestyle; 2017 Budapest SWI gold: 4×200 m freestyle relay, silver: 4×100 m medley relay, bronze: 100 m butterfly; 2019 Gwangju SWI gold: 4×100 m medley relay, bronze: 4×100 m medley mixed relay
Andrea Gyarmati	HUN	SWM	1968—1972	0–0–1 1973 Belgrade SWI bronze: 200 m backstroke
Kate Gynther	AUS	WPO	2004—2012	0–1–0 2007 Melbourne WAP silver
Eva Gysling	SUI	SWM	1984—1992	0–0–0 1991 Perth bronze: 50 m backstroke (demonstration event)
Dániel Gyurta	HUN	IOC/SWM	2004—2016	3–0–1 2009 Roma SWI gold: 200 m breaststroke; 2011 Shanghai SWI gold: 200 m breaststroke; 2013 Barcelona SWI gold: 200 m breaststroke; 2015 Kazan SWI bronze: 200 m breaststroke
Townley Haas	USA	SWM	2016—2020	4–1–2 2017 Budapest SWI gold: 4×100 m freestyle relay, 4×100 m medley relay (swam in heats only), and 4×100 m freestyle mixed relay (swam in heats only), silver: 200 m freestyle, bronze: 4×200 m freestyle relay; 2019 Gwangju SWI gold: 4×100 m freestyle relay (swam in heats only), bronze: 4×200 m freestyle relay
Bobby Hackett	USA	SWM	1976	1–0–1 1978 West Berlin SWI gold: 4×200 m freestyle relay, bronze: 1500 m freestyle
Grant Hackett	AUS	SWM	2000—2008	10–6–3 1998 Perth SWI gold: 1500 m freestyle and 4×200 m freestyle relay, silver: 400 m freestyle; 2001 Fukuoka SWI gold: 1500 m freestyle and 4×200 m freestyle relay, silver: 400 m freestyle and 800 m freestyle; 2003 Barcelona SWI gold: 800 m freestyle, 1500 m freestyle, and 4×200 m freestyle relay, silver: 400 m freestyle, bronze: 200 m freestyle; 2005 Montréal SWI gold: 400 m freestyle, 800 m freestyle, and 1500 m freestyle, silver: 200 m freestyle, bronze: 4×200 m freestyle relay; 2007 Melbourne SWI silver: 400 m freestyle; 2015 Kazan SWI bronze: 4×200 m freestyle relay (swam in heats only)
Jayden Hadler	AUS	SWM	2012	0–1–0 2015 Kazan SWI silver: 4×100 m medley relay
Kosuke Hagino	JPN	SWM	2012—2020	0–3–0 2013 Barcelona SWI silver: 400 m freestyle and silver: 200 m medley; 2017 Budapest SWI silver: 200 m medley
Tomoko Hagiwara	JPN	SWM	2000	0–0–1 2001 Fukuoka SWI bronze: 4×200 m freestyle relay
Nicole Haislett	USA	SWM	1992	3–1–1 1991 Perth SWI gold: 100 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay; 1994 Roma SWI silver: 4×100 m freestyle relay, bronze: 4×200 m freestyle relay
Aika Hakoyama	JPN	SWA	2012—2016	0–0–3 2015 Kazan SYN bronze: team Technical, team Free, and team Free Routine Combination
Gary Hall, Jr.	USA	SWM	1996—2004	3–3–0 1994 Roma SWI gold: 4×100 m freestyle relay and 4×100 m medley relay silver: 50 m freestyle and silver: 100 m freestyle; 1998 Perth SWI gold: 4×100 m freestyle relay, silver: 4×100 m medley relay
Dano Halsall	SUI	SWM	1984—1992	0–1–0 1986 Madrid SWI silver: 50 m freestyle
Fran Halsall	GBR	SWM	2008—2016	1–1–1 2009 Roma SWI silver: 100 m freestyle; 2013 Barcelona SWI bronze: 50 m freestyle; 2015 Kazan SWI gold: 4×100 m medley mixed relay
Sharon Hambrook	CAN	SWA	1984	2–0–0 1982 Guayaquil SYN gold: duet and team
Brendan Hansen	USA	SWM	2004—2012	6–2–1 2001 Fukuoka SWI gold: 200 m breaststroke; 2003 Barcelona SWI gold: 4×100 m medley relay, silver: 100 m breaststroke, bronze: 200 m breaststroke; 2005 Montréal SWI gold: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay; 2007 Melbourne SWI gold: 100 m breaststroke, silver: 50 m breaststroke
Brooke Hanson	AUS	SWM	2004	1–1–1 2003 Barcelona SWI silver: 50 m breaststroke; 2005 Montréal SWI gold: 4×100 m medley relay (swam in heats only), bronze: 50 m breaststroke
Louise Hansson	SWE	SWM	2016—2020	0–1–0 2015 Kazan SWI silver: 4×100 m medley relay
Hao Yun	CHN	SWM	2012	0–0–1 2013 Barcelona SWI bronze: 4×200 m freestyle relay
Saho Harada	JPN	SWA	2004—2008	1–5–4 2001 Fukuoka SYN silver: team; 2003 Barcelona SYN gold: team Free Routine Combination, silver: team; 2005 Montréal SYN silver: team and team Free Routine Combination, bronze: duet; 2007 Melbourne SYN silver: team Free Routine Combination, bronze: solo Technical, duet Technical, and team Free
Balázs Hárai	HUN	WPO	2012—2020	1–1–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver
Sarah Hardcastle	GBR	SWM	1984—1996	0–0–1 1986 Madrid SWI bronze: 400 m freestyle
Jessica Hardy	USA	SWM	2012	3–5–2 2005 Montréal SWI silver: 50 m breaststroke, 100 m breaststroke, and 4×100 m medley relay; 2007 Melbourne SWI gold: 50 m breaststroke, silver: 4×100 m medley relay (swam in heats only); 2011 Shanghai SWI gold: 50 m breaststroke, silver: 4×100 m freestyle relay; 2013 Barcelona SWI gold: 4×100 m medley relay, bronze: 50 m breaststroke and 100 m breaststroke
John Hargis	USA	SWM	1996	0–1–0 1998 Perth SWI silver: 4×100 m medley relay (swam in heats only)
András Hargitay	HUN	SWM	1972—1980	3–0–1 1973 Belgrade SWI SWI gold: 400 m medley; 1975 Cali SWI gold: 200 m medley and 400 m medley; 1978 West Berlin SWI bronze: 400 m medley
Isabelle Härle	GER	OWS	2016	2–0–1 2011 Shanghai SWI bronze: 5 km open water team; 2013 Barcelona SWI gold: 5 km open water team; 2015 Kazan SWI gold: 5 km open water team
Regan Harrison	AUS	SWM	2000—2004	1–0–0 2001 Fukuoka SWI gold: 4×100 m medley relay
Jo Harshbarger	USA	SWM	1972	0–1–0 1973 Belgrade SWI silver: 800 m freestyle
Sara Harstick	GER	SWM	2000—2004	0–1–0 2001 Fukuoka SWI silver: 4×200 m freestyle relay
Blythe Hartley	CAN	DIV	2000—2008	2–1–1 2001 Fukuoka DIV gold: 1 m springboard; 2003 Barcelona DIV bronze: 1 m springboard; 2005 Montréal DIV gold: 1 m springboard; 2007 Melbourne DIV silver: 1 m springboard
Wilfried Hartung	GDR	SWM	1972—1976	0–1–1 1973 Belgrade SWI silver: 4×100 m medley relay (swam in heats only), bronze: 4×100 m freestyle relay (swam in heats only)
Dagmar Hase	GER	SWM	1992—1996	2–3–2 1991 Perth SWI gold: 4×200 m freestyle relay, silver: 200 m backstroke, bronze: 4×100 m medley relay (swam in heats only); 1994 Roma SWI silver: 4×200 m freestyle relay; 1998 Perth SWI gold: 4×200 m freestyle relay, silver: 200 m backstroke, bronze: 400 m freestyle
Patrick Hausding	GER	DIV	2008—2020	1–2–1 2011 Shanghai DIV silver: synchronized platform; 2013 Barcelona DIV gold: synchronized platform; 2017 Budapest DIV silver: 3 m springboard, bronze: synchronized platform
Aiko Hayashi (DNS)	JPN	SWA	2016	0–0–2 2015 Kazan SYN bronze: team Free and team Free Routine Combination
Brent Hayden	CAN	SWM	2004—2020	1–3–1 2005 Montréal SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay; 2007 Melbourne SWI gold: 100 m freestyle, bronze: 4×200 m freestyle relay; 2011 Shanghai SWI silver: 100 m freestyle
Brittany Hayes	USA	WPO	2008	2–0–0 2007 Melbourne WAP gold; 2009 Rome WAP gold
He Chao	CHN	DIV	2016	1–1–0 2015 Kazan DIV gold: 3 m springboard; 2017 Budapest DIV silver: 1 m springboard
He Chong	CHN	DIV	2008—2012	5–1–1 2005 Montréal DIV gold: synchronized springboard, bronze: 3 m springboard; 2007 Melbourne DIV silver: 1 m springboard; 2009 Roma DIV gold: 3 m springboard; 2011 Shanghai DIV gold: 3 m springboard; 2013 Barcelona DIV gold: 3 m springboard and synchronized springboard
He Cihong	CHN	SWM	1992—1996	3–0–0 1994 Roma SWI gold: 100 m backstroke, 200 m backstroke, and 4×100 m medley relay
He Jin	CHN	WPO	2008—2012	0–1–0 2011 Shanghai WAP silver
He Zi	CHN	DIV	2012—2016	4–2–1 2007 Melbourne DIV gold: 1 m springboard; 2011 Shanghai DIV gold: synchronized springboard, silver: 3 m springboard; 2013 Barcelona DIV gold: 1 m springboard and 3 m springboard; 2015 Kazan DIV silver: 3 m springboard, bronze: 1 m springboard
Mike Heath	USA	SWM	1984	1–0–1 1986 Madrid SWI gold: 4×100 m freestyle relay, bronze: 4×200 m freestyle relay
Kathy Heddy	USA	SWM	1976	1–2–3 1973 Belgrade SWI silver: 4×100 m freestyle relay, bronze: 200 m medley; 1975 Cali SWI gold: 200 m medley, silver: 4×100 m freestyle relay, bronze: 400 m freestyle and 400 m medley
Whitney Hedgepeth	USA	SWM	1988—1996	1–0–0 1991 Perth SWI gold: 4×100 m freestyle relay
Femke Heemskerk	NED	SWM	2008—2020	2–3–3 2007 Melbourne SWI bronze: 4×100 m freestyle relay; 2009 Roma SWI gold: 4×100 m freestyle relay; 2011 Shanghai SWI gold: 4×100 m freestyle relay; 2013 Barcelona SWI bronze: 4×100 m freestyle relay; 2015 Kazan SWI silver: 4×100 m freestyle relay and 4×100 m freestyle mixed relay; 2017 Budapest SWI silver: 4×100 m freestyle mixed relay, bronze: 4×100 m freestyle relay
Christian Hein	GER	SWM	2004	0–2–0 2003 Barcelona SWI silver: 5 km open water and 10 km open water
Mathew Helm	AUS	DIV	2000—2008	1–1–1 2001 Fukuoka DIV bronze: platform; 2003 Barcelona DIV gold: synchronized platform, silver: platform
Claudia Hempel	GDR	SWM	1976	2–0–0 1975 Cali SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
Jan Hempel	GDR GER	DIV	1988—2000	0–1–1 1998 Perth DIV silver: synchronized platform, bronze: platform (competed for Germany)
John Hencken	USA	SWM	1972—1976	2–1–0 1973 Belgrade SWI gold: 100 m breaststroke and 4×100 m medley relay, silver: 200 m breaststroke
Mark Henderson	USA	SWM	1996	2–0–0 1991 Perth SWI gold: 4×100 m medley relay; 1994 Roma SWI gold: 4×100 m medley relay
Mélanie Hénique	FRA	SWM	2016—2020	0–0–1 2011 Shanghai SWI bronze: 50 m butterfly
Jana Henke	GER	SWM	1992—2004	0–0–2 1991 Perth SWI bronze: 800 m freestyle; 2003 Barcelona SWI bronze: 1500 m freestyle
Rainer Henkel	FRG	SWM	1984—1988	2–1–1 1982 Guayaquil SWI bronze: 4×200 m freestyle relay; 1986 Madrid SWI gold: 400 m freestyle and 1500 m freestyle, silver: 4×200 m freestyle relay
Thaïs Henríquez	ESP	SWA	2008—2012	1–6–4 2005 Montréal SYN bronze: team and team Free Routine Combination; 2007 Melbourne SYN silver: team Free; 2009 Roma SYN gold: team Free Routine Combination, silver: team Technical and team Free; 2011 Shanghai SYN bronze: team Technical and team Free; 2013 Barcelona SYN silver: team Technical, team Free, and team Free Routine Combination
Jodie Henry	AUS	SWM	2004	5–1–2 2003 Barcelona SWI silver: 100 m freestyle, bronze: 4×100 m freestyle relay and 4×100 m medley relay; 2005 Montréal SWI gold: 100 m freestyle, 4×100 m freestyle relay, 4×100 m medley relay (swam in heats only), and 4×100 m freestyle relay; 2007 Melbourne SWI gold: 4×100 m medley relay (swam in heats only)
Franziska Hentke	GER	SWM	2016—2020	0–1–0 2017 Budapest SWI silver: 200 m butterfly
Aliaksandra Herasimenia	BLR	SWM	2008—2016	1–1–1 2007 Melbourne SWI silver: 50 m backstroke; 2011 Shanghai SWI gold: 100 m freestyle; 2017 Budapest SWI bronze: 50 m backstroke
Stefan Herbst	GER	SWM	2000—2008	0–0–2 2001 Fukuoka SWI bronze: 4×100 m freestyle relay; 2003 Barcelona SWI bronze: 4×200 m freestyle relay
Muriel Hermine	FRA	SWA	1984—1988	0–0–1 1986 Madrid SYN bronze: solo
Gabriel Hernández	ESP	Coach/WPO	2000—2016	1–1–0 1994 Rome WAP silver; 2001 Fukuoka WAP gold
Melany Hernández	MEX	DIV	2016	0–0–1 2019 Gwangju DIV bronze: synchronized springboard
Patricia Herrera	ESP	WPO	2016	1–0–0 2013 Barcelona WAP gold
Amy Hetzel	AUS	WPO	2008	0–1–0 2007 Melbourne WAP silver
Emilie Heymans	CAN	DIV	2000—2012	1–2–0 2003 Barcelona DIV gold: platform; 2009 Roma DIV silver: 3 m springboard; 2011 Shanghai DIV silver: synchronized springboard
Edmée Hiemstra	NED	WPO	2000	1–2–0 1991 Perth WAP gold; 1994 Rome WAP silver; 1998 Perth WAP silver
Yvette Higgins	AUS	WPO	2000	0–0–1 1998 Perth WAP bronze
Nađa Higl	SRB	SWM	2008—2012	1–0–0 2009 Roma SWI gold: 200 m breaststroke
Allison Higson	CAN	SWM	1988—1992	0–0–1 1986 Madrid SWI bronze: 200 m breaststroke
Sami Hill	USA	WPO	2016	1–0–0 2015 Kazan WAP gold
Igor Hinić	CRO	WPO	1996—2012	1–0–1 2007 Melbourne WAP gold; 2009 Rome WAP bronze
Lars Hinneburg	GDR	SWM	1988	1–0–0 1986 Madrid SWI gold: 4×200 m freestyle relay
Jaime Hipp	USA	WPO	2008	1–1–0 2005 Montréal WAP silver; 2007 Melbourne WAP gold
Mike Hixon	USA	DIV	2010—2020	0–0–1 2015 Kazan DIV bronze: 1 m springboard
Ilona Hlaváčková	CZE	SWM	2000—2004	0–1–0 2003 Barcelona SWI silver: 50 m backstroke
Chad Ho	RSA	OWS	2008—2016	1–0–1 2009 Roma SWI bronze: 5 km open water; 2015 Kazan SWI gold: 5 km open water
Belinda Hocking	AUS	SWM	2008—2016	0–2–1 2011 Shanghai SWI silver: 200 m backstroke, bronze: 4×100 m medley relay; 2013 Barcelona SWI silver: 200 m backstroke
Margaret Hoelzer	USA	SWM	2004—2008	3–2–0 2003 Barcelona SWI gold: 4×200 m freestyle relay (swam in heats only), silver: 200 m backstroke; 2005 Montréal SWI silver: 200 m backstroke; 2007 Melbourne SWI gold: 200 m backstroke and 4×200 m freestyle relay (swam in heats only)
Katie Hoff	USA	SWM	2004—2008	7–0–0 2005 Montréal SWI gold: 200 m medley, 400 m medley, and 4×200 m freestyle relay; 2007 Melbourne SWI gold: 200 m medley, 400 m medley, and 4×200 m freestyle relay; 2011 Shanghai SWI gold: 4×200 m freestyle relay
Falk Hoffmann	GDR	DIV	1972—1980	0–2–1 1973 Belgrade DIV bronze: platform; 1978 West Berlin DIV silver: 3 m springboard and platform
Jörg Hoffmann	GDR GER	SWM	1988—1996	2–0–0 1991 Perth SWI gold: 400 m freestyle and 1500 m freestyle (competed for Germany)
Frank Hoffmeister	FRG	SWM	1988	0–1–2 1986 Madrid SWI silver: 4×100 m medley relay, bronze: 200 m backstroke (competed for West Germany); 1991 Perth SWI bronze: 4×100 m medley relay (competed for Germany)
Nancy Hogshead	USA	SWM	1984	0–1–0 1978 West Berlin SWI silver: 200 m butterfly
Steve Holland	AUS	SWM	1976	1–0–0 1973 Belgrade SWI gold: 1500 m freestyle
Anders Holmertz	SWE	SWM	1984—1996	1–1–0 1994 Roma SWI gold: 4×200 m freestyle relay, silver: 200 m freestyle
Per Holmertz	SWE	SWM	1980	0–0–2 1978 West Berlin SWI bronze: 4×100 m freestyle relay; 1982 Guayaquil SWI bronze: 4×100 m freestyle relay
Péter Holoda	HUN	SWM	2016—2020	0–0–1 2017 Budapest SWI bronze: 4×100 m freestyle relay
Ewout Holst	NED	SWM	2000	0–1–0 2001 Fukuoka SWI silver: 4×100 m freestyle relay (swam in heats only)
Pieter van den Hoogenband	NED	SWM	1996—2008	0–8–2 1998 Perth SWI silver: 4×200 m freestyle relay, bronze: 200 m freestyle; 2001 Fukuoka SWI silver: 50 m freestyle, 100 m freestyle, 200 m freestyle, and 4×100 m freestyle relay; 2003 Barcelona SWI silver: 100 m freestyle and 200 m freestyle, bronze: 50 m freestyle; 2007 Melbourne SWI silver: 200 m freestyle
Jennifer Hooker	USA	SWM	1976	1–0–0 1978 West Berlin SWI gold: 4×100 m freestyle relay (swam in heats only)
Kate Hooven	USA	SWA	2008	0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination
Rainer Hoppe	FRG	WPO	1984	0–0–1 1982 Guayaquil WAP bronze
Yuya Horihata	JPN	SWM	2012	0–0–1 2011 Shanghai SWI bronze: 400 m medley
György Horkai	HUN	WPO	1976—1980	0–3–0 1975 Cali WAP silver; 1978 West Berlin WAP silver; 1982 Guayaquil WAP silver
Waneek Horn-Miller	CAN	WPO	2000	0–0–1 2001 Fukuoka WAP bronze
Silke Hörner	GDR	SWM	1988	2–1–0 1982 Guayaquil SWI gold: 4×100 m medley relay (swam in heats only); 1986 Madrid SWI gold: 200 m breaststroke, silver: 100 m breaststroke
Oleksandr Horshkovozov	UKR	DIV	2012—2016	0–1–1 2011 Shanghai DIV bronze: synchronized platform; 2015 Kazan DIV silver: team
Mack Horton	AUS	SWM	2016—2020	1–2–2 2015 Kazan SWI bronze: 800 m freestyle; 2017 Budapest SWI silver: 400 m freestyle, bronze: 1500 m freestyle; 2019 Gwangju SWI gold: 4×200 m freestyle relay, silver: 400 m freestyle
Patrícia Horváth	HUN	WPO	2008	1–0–0 2005 Montréal WAP gold
Péter Horváth	HUN	SWM	1992—2004	0–0–2 1994 Roma SWI bronze: 4×100 m medley relay; 1998 Perth SWI bronze: 4×100 m medley relay
Natsumi Hoshi	JPN	SWM	2008—2016	1–0–0 2015 Kazan SWI gold: 200 m butterfly
Norbert Hosnyánszky	HUN	WPO	2008—2020	1–1–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver
Katinka Hosszú	HUN	SWM	2004—2020	9–1–5 2009 Roma SWI gold: 400 m medley, bronze: 200 m butterfly and 200 m medley; 2013 Barcelona SWI gold: 200 m medley and 400 m medley, bronze: 200 m butterfly; 2015 Kazan SWI gold: 200 m medley and 400 m medley, bronze: 200 m backstroke; 2017 Budapest SWI gold: 200 m medley and 400 m medley, silver: 200 m backstroke, bronze: 200 m butterfly; 2019 Gwangju SWI gold: 200 m medley and 400 m medley
Charlie Houchin	USA	SWM	2012	1–0–0 2013 Barcelona SWI gold: 4×200 m freestyle relay
Andriy Hovorov	UKR	SWM	2010—2016	0–0–1 2017 Budapest SWI bronze: 50 m butterfly
Olena Hrechykhina	UKR	SWA	2016	0–0–3 2013 Barcelona SYN bronze: team Technical, team Free, and team Free Routine Combination
Hu Jia	CHN	DIV	2000—2004	2–1–1 2001 Fukuoka DIV gold: synchronized platform; 2003 Barcelona DIV bronze: synchronized platform; 2005 Montréal DIV gold: platform, silver: synchronized platform
Hu Yadan	CHN	DIV	2012	0–1–0 2011 Shanghai DIV silver: platform
Huang Xuechen	CHN	SWA	2008—2020	0–16–2 2009 Rome SYN silver: Team Free Routine Combination; bronze: Team Technical and team Free; 2011 Shanghai SYN silver: solo Technical, duet Technical, team Technical, team Free, and team Free Routine Combination; 2013 Barcelona SYN silver: solo Technical, solo Free; 2015 Kazan SYN silver: solo Free, duet Technical, duet Free, and team Technical; 2019 Gwangju SYN silver: duet Technical, duet Free, team Technical, and team Free
Sophie Huber	FRA	SWM	2008	0–0–1 2007 Melbourne SWI bronze: 4×200 m freestyle relay
Geoff Huegill	AUS	SWM	2000—2004	3–1–3 1998 Perth SWI gold: 4×100 m medley relay (swam in heats only), bronze: 100 m butterfly; 2001 Fukuoka SWI gold: 50 m butterfly and 4×100 m medley relay, bronze: 100 m butterfly; 2011 Shanghai SWI silver: 4×100 m medley relay, bronze: 50 m butterfly
Daniela Hunger	GDR GER	SWM	1988—1992	0–1–2 1991 Perth SWI gold: 4×50 m freestyle relay (demonstration event), silver: 4×100 m freestyle relay (swam in heats only), bronze: 200 m medley (competed for Germany); 1994 Roma SWI bronze: 4×100 m freestyle relay (competed for Germany)
Huo Liang	CHN	DIV	2008	3–0–0 2007 Melbourne DIV gold: synchronized platform; 2009 Roma DIV gold: synchronized platform; 2011 Shanghai DIV gold: synchronized platform
Andrew Hurd	CAN	SWM	2000—2008	0–1–1 2005 Montréal SWI silver: 4×200 m freestyle relay; 2007 Melbourne SWI bronze: 4×200 m freestyle relay
Gary Hurring	NZL	SWM	1984	0–1–0 1978 West Berlin SWI silver: 200 m backstroke
Ky Hurst	AUS	OWS	2008—2012	0–2–0 1998 Perth SWI silver: 5 km open water; 2011 Shanghai SWI silver: 5 km open water team
Misty Hyman	USA	SWM	2000	1–0–1 1998 Perth SWI gold: 4×100 m medley relay (swam in heats only), bronze: 200 m butterfly
Hyon Il-Myong	PRK	DIV	2010	0–0–1 2017 Budapest DIV bronze: synchronized platform
Emanuele Idini	ITA	SWM	1992—1996	0–0–1 1991 Perth SWI bronze: 4×200 m freestyle relay
Danilo Ikodinović	SRB SCG	WPO	2000—2004	1–0–1 2003 Barcelona WAP bronze; 2005 Montréal WAP gold
Lara Ilchenko	RUS	OWS	2008	4–1–0 2005 Montréal SWI gold: 5 km open water and 5 km open water team; 2007 Melbourne SWI gold: 5 km open water and 10 km open water; 2009 Roma SWI silver: 5 km open water
Kristina Ilinykh	RUS	DIV	2016	0–0–1 2017 Budapest DIV bronze: synchronized springboard
Anna Illés	HUN	WPO	2016—2020	0–0–1 2013 Barcelona WAP bronze
Vera Ilyina	RUS EUN	DIV	1992—2004	0–4–0 1994 Roma DIV silver: 3 m springboard (competed for Russia); 1998 Perth DIV silver: 1 m springboard (competed for Russia); 2001 Fukuoka DIV silver: synchronized springboard (competed for Russia); 2003 Barcelona DIV silver: synchronized springboard (competed for Russia)
Genki Imamura	JPN	SWM	2004	0–0–1 2005 Montréal SWI bronze: 200 m breaststroke
François Imbeau-Dulac	CAN	DIV	2012	0–2–1 2015 Kazan DIV silver: synchronized springboard (mixed); 2017 Budapest DIV bronze: synchronized springboard (mixed); 2019 Gwangju DIV silver: synchronized springboard (mixed)
Noriko Inada	JPN	SWM	1992—2004	0–0–1 2003 Barcelona SWI bronze: 50 m backstroke
Yukiko Inui	JPN	SWA	2012—2020	0–0–8 2015 Kazan SYN bronze: duet Technical, team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN bronze: team Technical and team Free Routine Combination; 2019 Gwangju SYN bronze: solo Technical and solo Free
Kristian Ipsen	USA	DIV	2012—2016	0–1–0 2009 Roma DIV silver: synchronized springboard
Ryosuke Irie	JPN	SWM	2008—2020	0–2–2 2009 Roma SWI silver: 200 m backstroke; 2011 Shanghai SWI silver: 200 m backstroke, bronze: 100 m backstroke; 2013 Barcelona SWI bronze: 4×100 m medley relay
Grant Irvine	AUS	SWM	2016	0–1–0 2017 Budapest SWI silver: 4×100 m medley mixed relay (swam in heats only)
Chloé Isaac	CAN	SWA	2012	0–0–2 2009 Roma SYN bronze: team Free Routine Combination; 2011 Shanghai SYN bronze: team Free Routine Combination
Nataliya Ishchenko	RUS	SWA	2008—2016	19–2–0 2005 Montréal SYN gold: team and team Free Routine Combination, silver: solo; 2007 Melbourne SYN gold: solo Technical, team Technical, team Free, and team Free Routine Combination, silver: solo Free; 2009 Roma SYN gold: solo Technical, solo Free, duet Free, and team Free; 2011 Shanghai SYN gold: solo Technical, solo Free, duet Technical, duet Free, team Free, and team Free Routine Combination; 2015 Kazan SYN gold: solo Free, duet Technical, and duet Free
Haley Ishimatsu	USA	DIV	2008	0–1–0 2009 Roma DIV silver: synchronized platform
Yoko Isoda	JPN	SWA	2000	0–1–0 1998 Perth SYN silver: team
Megumi Ito	JPN	SWA	1988	0–0–2 1986 Madrid SYN bronze: duet and team
Mikhail Ivanov	RUS URS	WPO	1980—1988	1–0–1 1982 Guayaquil WAP gold; 1986 Madrid WAP bronze
Vasily Ivanov	RUS EUN	SWM	1992	0–1–0 1994 Roma SWI silver: 4×100 m medley relay (competed for Russia)
Yevgeniya Ivanova	ROC RUS	WPO	2012—2020	0–0–3 2009 Rome WAP bronze; 2011 Shanghai WAP bronze; 2017 Budapest WAP bronze
Roman Ivanovsky	RUS	SWM	1996	0–1–0 2003 Barcelona SWI silver: 4×100 m medley relay
Sergey Ivlev	RUS	WPO	1996	0–0–1 1994 Rome WAP bronze
Aleksandar Ivović	MNE	WPO	2008—2020	0–2–0 2001 Fukuoka WAP silver (competed for FR Yugoslavia); 2013 Barcelona WAP silver (competed for Montenegro)
Dan Izotov	RUS	SWM	2008—2016	0–5–4 2009 Roma SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay, bronze: 200 m freestyle; 2013 Barcelona SWI silver: 4×200 m freestyle relay, bronze: 200 m freestyle and 4×100 m freestyle relay; 2015 Kazan SWI silver: 4×100 m freestyle relay (swam in heats only); 2017 Budapest SWI silver: 4×200 m freestyle relay, bronze: 4×100 m medley relay (swam in heats only)
Bob Jackson	USA	SWM	1976	2–0–0 1978 West Berlin SWI gold: 100 m backstroke and 4×100 m medley relay
Jo Jackson	GBR	SWM	2004—2012	0–2–1 2009 Roma SWI silver: 400 m freestyle and 800 m freestyle, bronze: 4×200 m freestyle relay
Nicola Jackson	GBR	SWM	2000	1–0–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay
Trina Jackson	USA	SWM	1996	0–1–0 1998 Perth SWI silver: 4×200 m freestyle relay (swam in heats only)
Mette Jacobsen	DEN	SWM	1988—2004	0–0–2 1991 Perth SWI bronze: 200 m freestyle and 4×200 m freestyle relay
Connor Jaeger	USA	SWM	2012—2016	0–1–1 2013 Barcelona SWI bronze: 400 m freestyle; 2015 Kazan SWI silver: 1500 m freestyle
Tom Jager	USA	SWM	1984—1992	6–0–1 1982 Guayaquil SWI gold: 4×100 m freestyle relay (swam in heats only); 1986 Madrid SWI gold: 50 m freestyle, 4×100 m freestyle relay, 4×100 m medley relay (swam in heats only), bronze: 100 m freestyle; 1991 Perth SWI gold: 50 m freestyle and 4×100 m freestyle relay
Nikola Jakšić	SRB	WPO	2016—2020	1–0–1 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Andy Jameson	GBR	SWM	1984—1988	0–0–1 1986 Madrid SWI bronze: 100 m butterfly
Marina Janicke	GDR	DIV	1972	0–0–1 1973 Belgrade DIV bronze: 3 m springboard
Zoran Janković	SRB YUG	WPO	1964—1972	0–0–1 1978 West Berlin WAP bronze
Mlađan Janović	MNE	WPO	2008—2016	0–1–0 2013 Barcelona WAP silver
Nikola Janović	MNE	WPO	2008—2012	1–1–0 2005 Montréal WAP gold (competed for Serbia and Montenegro); 2013 Barcelona WAP silver (competed for Montenegro)
Anne Jardin	CAN	SWM	1976	0–0–1 1975 Cali SWI bronze: 4×100 m freestyle relay
Martina Jäschke	GDR	DIV	1980	0–1–0 1978 West Berlin DIV silver: platform
Becky Jasontek	USA	SWA	2004	0–1–2 1998 Perth SYN bronze: team; 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team
Otylia Jędrzejczak	POL	SWM	2000—2012	2–3–2 2001 Fukuoka SWI silver: 100 m butterfly; 2003 Barcelona SWI gold: 200 m butterfly, silver: 100 m butterfly; 2005 Montréal SWI gold: 200 m butterfly, bronze: 100 m butterfly; 2007 Melbourne SWI silver: 400 m freestyle, bronze: 200 m butterfly
Rhi Jeffrey	USA	SWM	2004	2–0–0 2003 Barcelona SWI gold: 4×100 m freestyle relay and 4×200 m freestyle relay
Viktor Jelenić	SRB SCG	WPO	1996—2004	1–0–1 1991 WAP Perth gold; 2003 Barcelona WAP bronze
Gitta Jensen	DEN	SWM	1988—1992	0–0–1 1991 Perth SWI bronze: 4×200 m freestyle relay
Larsen Jensen	USA	SWM	2004—2008	0–3–0 2003 Barcelona SWI silver: 800 m freestyle; 2005 Montréal SWI silver: 800 m freestyle and 1500 m freestyle
Lene Jenssen	NOR	SWM	1976	0–1–0 1978 West Berlin SWI silver: 100 m freestyle
Linda Jezek	USA	SWM	1976	3–1–0 1975 Cali SWI silver: 4×100 m medley relay; 1978 West Berlin SWI gold: 100 m backstroke, 200 m backstroke, and 4×100 m medley relay
Ji Liping	CHN	SWM	2012	0–1–1 2011 Shanghai SWI silver: 4×100 m medley rela, bronze: 100 m breaststroke
Jiang Tingting	CHN	SWA	2008—2012	0–8–4 2009 Roma SYN silver: team Free Routine Combination, bronze: duet Technical, duet Free, team Technical, and team Free; 2011 Shanghai SYN silver: duet Free, silver: team Technical, and team Free; 2013 Barcelona SYN silver: duet Technical and duet Free; 2017 Budapest SYN silver: duet Technical and duet Free
Jiang Wenwen	CHN	SWA	2008—2012	0–8–4 2009 Roma SYN silver: team Free Routine Combination, bronze: duet Technical, duet Free, team Technical, and team Free; 2011 Shanghai SYN silver: duet Free, team Technical, and team Free; 2013 Barcelona SYN silver: duet Technical and duet Free; 2017 Budapest SYN silver: duet Technical and duet Free
Jiao Liuyang	CHN	SWM	2008—2012	2–1–1 2009 Roma SWI gold: 4×100 m medley relay, bronze: 100 m butterfly; 2011 Shanghai SWI gold: 200 m butterfly, silver: 4×100 m medley relay (swam in heats only)
Rei Jimbo	JPN	SWA	1996—2000	0–1–1 1994 Roma SYN bronze: team; 1998 Perth SYN silver: team
Jennie Johansson	SWE	SWM	2012—2016	1–1–0 2015 Kazan SWI gold: 50 m breaststroke; 2015 Kazan SWI silver: 4×100 m medley relay
Per Johansson	SWE	SWM	1980—1988	0–0–2 1982 Guayaquil SWI bronze: 100 m freestyle and 4×100 m freestyle relay
Brian Johns	CAN	SWM	2000—2008	0–0–1 2007 Melbourne SWI bronze: 4×200 m freestyle relay
Ashleigh Johnson	USA	WPO	2016—2020	2–0–0 2015 Kazan WAP gold; 2019 Gwangju WAP gold
Emma Johnson	AUS	SWM	1996	0–0–1 1998 Perth SWI bronze: 4×200 m freestyle relay (swam in heats only)
Jenna Johnson	USA	SWM	1984	0–3–0 1986 Madrid SWI silver: 100 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay
Predrag Jokić	MNE SCG	WPO	2004—2016	1–1–1 2003 Barcelona WAP bronze (competed for Serbia and Montenegro); 2005 Montréal WAP gold (competed for Serbia and Montenegro); 2013 Barcelona WAP silver (competed for Montenegro)
Maro Joković	CRO	WPO	2008—2020	2–1–3 2007 Melbourne WAP gold; 2011 Shanghai WAP bronze; 2013 Barcelona WAP bronze; 2015 Kazan WAP silver; 2017 Budapest WAP gold; 2019 Gwangju WAP bronze
Christina Jones	USA	SWA	2008	1–0–1 2007 Melbourne SYN bronze: team Free Routine Combination; 2015 Kazan SYN gold: duet Technical (mixed)
Cullen Jones	USA	SWM	2008—2012	2–1–0 2007 Melbourne SWI gold: 4×100 m freestyle relay, silver: 50 m freestyle; 2009 Roma SWI gold: 4×100 m freestyle relay (swam in heats only)
Leisel Jones	AUS	SWM	2000—2012	7–4–3 2001 Fukuoka SWI gold: 4×100 m medley relay, silver: 100 m breaststroke; 2003 Barcelona SWI silver: 200 m breaststroke, bronze: 100 m breaststroke and 4×100 m medley relay; 2005 Montréal SWI gold: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay; 2007 Melbourne SWI gold: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay; 2007 Melbourne SWI silver: 50 m breaststroke; 2011 Shanghai SWI silver: 100 m breaststroke, bronze: 4×100 m medley relay
Edwin Jongejans	NED	DIV	1988—1992	1–0–0 1991 Perth DIV gold: 1 m springboard
Dan Jorgensen	USA	SWM	1988—1992	0–1–3 1986 Madrid SWI bronze: 400 m freestyle, 1500 m freestyle, and 4×200 m freestyle relay; 1991 Perth SWI silver: 4×200 m freestyle relay
Karen Josephson	USA	SWA	1988—1992	2–2–0 1986 Madrid SYN silver: duet and team; 1991 Perth SYN gold: duet and team
Sarah Josephson	USA	SWA	1984—1992	2–4–0 1982 Guayaquil SYN silver: team; 1986 Madrid SYN silver: solo, duet, and team; 1991 Perth SYN gold: duet and team
Kara Lynn Joyce	USA	SWM	2004—2012	1–2–1 2005 Montréal SWI bronze: 4×100 m freestyle relay; 2007 Melbourne SWI gold: 4×200 m freestyle relay (swam in heats only), silver: 4×100 m freestyle relay; 2011 Shanghai SWI silver: 4×100 m freestyle relay (swam in heats only)
Mirna Jukic	AUT	SWM	2004—2008	0–0–2 2005 Montréal SWI bronze: 200 m breaststroke; 2009 Roma SWI bronze: 200 m breaststroke
Aleksandr Kabanov	RUS URS	Coach/WPO	1972—2012	2–1–0 1973 Belgrade WAP silver; 1975 Cali WAP gold; 1982 Guayaquil WAP gold
Lina Kačiušytė	LTU URS	SWM	1980	1–0–1 1978 West Berlin SWI gold: 200 m breaststroke, bronze: 4×100 m medley relay (swam in heats only)
Irina Kalinina	RUS URS	DIV	1976—1980	3–1–1 1973 Belgrade DIV bronze: platform; 1975 Cali DIV gold: 3 m springboard, silver: platform; 1978 West Berlin DIV gold: 3 m springboard and platform
Chase Kalisz	USA	SWM	2016—2020	2–1–2 2013 Barcelona SWI silver: 400 m medley; 2015 Kazan SWI bronze: 400 m medley; 2017 Budapest SWI gold: 200 m medley and 400 m medley; 2019 Gwangju SWI bronze: 200 m medley
Anna-Karin Kammerling	SWE	SWM	2000—2008	0–1–2 2001 Fukuoka SWI bronze: 50 m butterfly; 2003 Barcelona SWI bronze: 50 m butterfly; 2005 Montréal SWI silver: 50 m butterfly
Boglárka Kapás	HUN	SWM	2008—2020	1–0–1 2015 Kazan SWI bronze: 1500 m freestyle; 2019 Gwangju SWI gold: 200 m butterfly
Andrey Kapralov	RUS	SWM	2000—2008	1–1–1 2003 Barcelona SWI gold: 4×100 m freestyle relay; 2005 Montréal SWI silver: 4×100 m medley relay; 2007 Melbourne SWI bronze: 4×100 m medley relay (swam in heats only)
Elvina Karimova	ROC RUS	WPO	2016—2020	0–0–1 2017 Budapest WAP bronze
Ron Karnaugh	USA	SWM	1992	0–0–1 1998 Perth SWI bronze: 200 m medley
Anna Karnaukh	ROC RUS	WPO	2012—2020	0–0–2 2011 Shanghai WAP bronze; 2017 Budapest WAP bronze
Tamás Kásás	HUN	WPO	1996—2012	1–3–0 1998 Perth WAP silver; 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP silver
Zoltán Kásás	HUN	WPO	1972	1–0–0 1973 Belgrade WAP gold
Orsolya Kasó	HUN	WPO	2016	0–0–1 2013 Barcelona WAP bronze
Antti Kasvio	FIN	SWM	1992—1996	1–1–0 1994 Roma SWI gold: 200 m freestyle, silver: 400 m freestyle
Miho Kawabe	JPN	SWA	1996	0–1–0 1998 Perth SYN silver: team
Akiko Kawase	JPN	SWA	1996	0–0–1 1994 Roma SYN bronze: team
Naoko Kawashima	JPN	SWA	2004—2008	1–6–1 2001 Fukuoka SYN silver: team; 2003 Barcelona SYN gold: team Free Routine Combination, silver: team; 2005 Montréal SYN silver: team, team Free Routine Combination, and team Technical; 2007 Melbourne SYN silver: team Free Routine Combination, bronze: team Free
Radosław Kawęcki	POL	SWM	2012—2020	0–2–0 2013 Barcelona SWI silver: 200 m backstroke; 2015 Kazan SWI silver: 200 m backstroke
Maddison Keeney	AUS	DIV	2016	2–0–1 2017 Budapest DIV gold: 1 m springboard; 2019 Gwangju DIV gold: synchronized springboard (mixed), bronze: 3 m springboard
Christian Keller	GER	SWM	1992—2004	0–0–2 1994 Roma SWI bronze: 4×200 m freestyle relay; 2003 Barcelona SWI bronze: 4×200 m freestyle relay
Kalyn Keller	USA	SWM	2004	0–1–0 2007 Melbourne SWI silver: 25 km open water
Klete Keller	USA	SWM	2000—2008	2–1–2 2001 Fukuoka SWI bronze: 200 m freestyle and 4×200 m freestyle relay; 2003 Barcelona SWI silver: 4×200 m freestyle relay; 2005 Montréal SWI gold: 4×200 m freestyle relay; 2007 Melbourne SWI gold: 4×200 m freestyle relay
Maggie Kelly-Hohmann	GBR	SWM	1976—1988	0–0–1 1978 West Berlin SWI bronze: 100 m breaststroke (competed as Maggie Kelly)
Rachael Kelly	GBR	SWM	2010	1–0–0 2015 Kazan SWI gold: 4×100 m medley mixed relay (swam in heats only)
György Kenéz	HUN	WPO	1976	0–2–0 1978 West Berlin WAP silver; 1982 Guayaquil WAP silver
Johan Kenkhuis	NED	SWM	2000—2004	0–2–0 1998 Perth SWI silver: 4×200 m freestyle relay (swam in heats only); 2001 Fukuoka SWI silver: 4×100 m freestyle relay
Angela Kennedy	AUS	SWM	1996	0–1–1 1998 Perth SWI silver: 4×100 m medley relay (swam in heats only), bronze: 4×100 m freestyle relay
Rita Keszthelyi	HUN	WPO	2012—2020	0–0–1 2013 Barcelona WAP bronze
Elvira Khasyanova	RUS	SWA	2004—2012	10–0–0 2001 Fukuoka SYN gold: team; 2003 Barcelona SYN gold: team; 2005 Montréal SYN gold: team and team Free Routine Combination; 2007 Melbourne SYN gold: team Technical, team Free, and team Free Routine Combination; 2011 Shanghai SYN gold: team Technical, team Free, and team Free Routine Combination
Theodoros Khatzitheodorou	GRE	WPO	1996—2012	0–0–1 2005 Montréal WAP bronze
Hanna Khlistunova	UKR	SWM	2008	0–0–1 2007 Melbourne SWI bronze: 100 m breaststroke
Leonid Khokhlov	RUS	SWM	2000	0–0–1 2001 Fukuoka SWI bronze: 4×100 m medley relay (swam in heats only)
Kerstin Kielgaß	GER	SWM	1992—2000	2–2–2 1991 Perth SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay (swam in heats only); 1994 Roma SWI silver: 4×200 m freestyle relay, bronze: 4×100 m freestyle relay; 1998 Perth SWI gold: 4×200 m freestyle relay
Günter Kilian	FRG	WPO	1968—1976	0–0–1 1982 Guayaquil WAP bronze
Albin Killat	GER FRG	DIV	1984—1992	0–0–1 1991 Perth DIV bronze: 3 m springboard (competed for Germany)
Becky Kim	USA	SWA	2008	0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination
Kim Kuk-Hyang	PRK	DIV	2016	1–1–1 2015 Kazan DIV gold: platform, bronze: synchronized platform; 2017 Budapest DIV silver: synchronized platform
Kim Mi-Rae	PRK	DIV	2016	0–1–1 2017 Budapest DIV silver: synchronized platform, bronze: synchronized platform (mixed)
Kim Su-Ji	KOR	DIV	2012—2020	0–0–1 2019 Gwangju DIV bronze: 1 m springboard
Bruce Kimball	USA	DIV	1984	0–0–2 1982 Guayaquil DIV bronze: platform; 1986 Madrid DIV bronze: platform
Saeko Kimura	JPN	SWA	1984	0–0–1 1982 Guayaquil SYN bronze: team
Lilly King	USA	SWM	2016—2020	7–1–0 2017 Budapest SWI gold: 50 m breaststroke, 100 m breaststroke, 4×100 m medley relay, and 4×100 m medley mixed relay; 2019 Gwangju SWI gold: 50 m breaststroke, 100 m breaststroke, and 4×100 m medley relay, silver: 4×100 m medley mixed relay
Bill Kirby	AUS	SWM	2000	1–0–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay
Tara Kirk	USA	SWM	2004	0–4–2 2003 Barcelona SWI silver: 4×100 m medley relay (swam in heats only); 2005 Montréal SWI silver: 4×100 m medley relay (swam in heats only), bronze: 100 m breaststroke; 2007 Melbourne SWI silver: 100 m breaststroke and 4×100 m medley relay, bronze: 50 m breaststroke
Gábor Kis	HUN	WPO	2008—2016	0–1–0 2007 Melbourne WAP silver
Gergő Kis	HUN	SWM	2004—2016	0–0–2 2011 Shanghai SWI bronze: 800 m freestyle and 1500 m freestyle
Mariya Kiselyova	RUS	SWA	1996—2004	2–0–0 1998 Perth SYN gold: team; 2003 Barcelona SYN gold: team
Yuri Kisil	CAN	SWM	2016—2020	0–0–3 2015 Kazan SWI bronze: 4×100 m freestyle mixed relay; 2017 Budapest SWI bronze: 4×100 m freestyle mixed relay and 4×100 m medley mixed relay
Gergő Kiss	HUN	WPO	2000—2012	1–3–0 1998 Perth WAP silver; 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP silver
István Kiss	HUN	WPO	1980	0–1–0 1982 Guayaquil WAP silver
Dóra Kisteleki	HUN	WPO	2004—2008	1–0–1 2005 Montréal WAP gold; 2013 Barcelona WAP bronze
Kosuke Kitajima	JPN	SWM	2000—2012	3–4–5 2001 Fukuoka SWI bronze: 200 m breaststroke; 2003 Barcelona SWI gold: 100 m breaststroke and 200 m breaststroke, bronze: 4×100 m medley relay; 2005 Montréal SWI silver: 100 m breaststroke, bronze: 50 m breaststroke and 4×100 m medley relay; 2007 Melbourne SWI gold: 200 m breaststroke, silver: 100 m breaststroke and 4×100 m medley relay; 2011 Shanghai SWI silver: 200 m breaststroke; 2013 Barcelona SWI bronze: 4×100 m medley relay
Kanako Kitao	JPN	SWA	2004	1–2–2 2003 Barcelona SYN gold: team Free Routine Combination; 2005 Montréal SYN silver: team and team Free Routine Combination; 2017 Budapest SYN bronze: duet Technical (mixed) and duet Free (mixed) (competed as Kanako Spendlove for the United States)
Bartosz Kizierowski	POL	SWM	1996—2008	0–0–1 2005 Montréal SWI bronze: 50 m freestyle
Paula Klamburg	ESP	SWA	2012	1–5–2 2009 Roma SYN gold: team Free Routine Combination, silver: team Technical and team Free; 2011 Shanghai SYN bronze: team Technical and team Free; 2013 Barcelona SYN silver: team Technical, team Free, and team Free Routine Combination
Anatoly Klebanov	BLR URS	WPO	1976	1–0–0 1975 Cali WAP gold
Ina Kleber	GDR	SWM	1980	0–1–0 1982 Guayaquil SWI silver: 100 m backstroke
Sascha Klein	GER	DIV	2008—2016	1–1–3 2011 Shanghai DIV silver: synchronized platform, bronze: platform; 2013 Barcelona DIV gold: synchronized platform, bronze: platform; 2017 Budapest DIV bronze: synchronized platform
Filip Klikovać	MNE	WPO	2016	0–1–0 2013 Barcelona WAP silver
Michael Klim	AUS	SWM	1996—2004	7–2–2 1998 Perth SWI gold: 200 m freestyle, 100 m butterfly, 4×200 m freestyle relay, and 4×100 m medley relay, silver: 100 m freestyle and 4×100 m freestyle relay, bronze: 50 m freestyle; 2001 Fukuoka SWI gold: 4×100 m freestyle relay and 4×200 m freestyle relay; 2005 Montréal SWI bronze: 4×100 m freestyle relay; 2007 Melbourne SWI gold: 4×100 m medley relay (swam in heats only)
Carol Klimpel	CAN	SWM	1984	0–0–1 1978 West Berlin SWI bronze: 4×100 m freestyle relay (swam in heats only)
Yana Klochkova	UKR	SWM	2000—2008	4–2–0 1998 Perth SWI silver: 400 m medley; 2001 Fukuoka SWI gold: 400 m freestyle and 400 m medley, silver: 200 m medley; 2003 Barcelona SWI gold: 200 m medley and 400 m medley
Ulrika Knape	SWE	DIV	1972—1976	1–1–1 1973 Belgrade DIV gold: platform, silver: 3 m springboard; 1975 Cali DIV bronze: platform
Bronwen Knox	AUS	WPO	2008—2020	0–2–1 2007 Melbourne WAP silver; 2013 Barcelona WAP silver; 2019 Gwangju WAP bronze
Emma Knox	AUS	WPO	2004—2008	0–1–0 2007 Melbourne WAP silver
Chisa Kobayashi	JPN	SWA	2012	0–1–0 2007 Melbourne SYN silver: team Technical
Hiromi Kobayashi	JPN	SWA	2008	0–4–1 2005 Montréal SYN silver: team and team Free Routine Combination; 2007 Melbourne SYN silver: team Technical and team Free Routine Combination, bronze: team Free
Marco Koch	GER	SWM	2012—2020	1–1–0 2013 Barcelona SWI silver: 200 m breaststroke; 2015 Kazan SWI gold: 200 m breaststroke
Junya Koga	JPN	SWM	2016	1–2–0 2009 Roma SWI gold: 100 m backstroke, silver: 50 m backstroke; 2017 Budapest SWI silver: 50 m backstroke
Christa Köhler	GDR	DIV	1972—1976	1–0–0 1973 Belgrade DIV gold: 3 m springboard
Sarah Köhler	GER	SWM	2016—2020	1–1–0 2019 Gwangju SWI gold: 4×1.25 km open water relay, silver: 1500 m freestyle
Svetlana Kolesnichenko	ROC RUS	SWA	2016—2020	16–0–0 2011 Shanghai SYN gold: team Technical, team Free, and team Free Routine Combination; 2013 Barcelona SYN gold: duet Technical, duet Free, and team Free; 2015 Kazan SYN gold: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN gold: solo Technical, solo Free, duet Technical, and duet Free; 2019 Gwangju SYN gold: solo Technical, duet Technical, and duet Free
Kliment Kolesnikov	ROC RUS	SWM	2018—2020	0–1–2 2019 Gwangju SWI silver: 4×100 m freestyle relay, bronze: 50 m backstroke and 4×100 m medley relay (swam in heats only)
Khristodoulos Kolomvos	GRE	WPO	2016—2020	0–0–1 2015 Kazan WAP bronze
Stanislava Komarova	RUS	SWM	2004—2008	0–1–1 2001 Fukuoka SWI silver: 200 m backstroke; 2003 Barcelona SWI bronze: 200 m backstroke
Rachel Komisarz	USA	SWM	2004	2–2–0 2003 Barcelona SWI gold: 4×200 m freestyle relay; 2005 Montréal SWI gold: 4×200 m freestyle relay (swam in heats only), silver: 4×100 m medley relay and 4×100 m medley relay
Dmitry Komornikov	RUS	SWM	2000—2008	0–2–2 2001 Fukuoka SWI bronze: 4×100 m medley relay; 2003 Barcelona SWI silver: 4×100 m medley relay (swam in heats only); 2005 Montréal SWI silver: 4×100 m medley relay; 2007 Melbourne SWI bronze: 4×100 m medley relay
Erika Komura	JPN	SWA	2008	0–4–1 2005 Montréal SYN silver: team and team Free Routine Combination; 2007 Melbourne SYN silver: team Technical and team Free Routine Combination, bronze: team Free
Ferenc Konrád	HUN	WPO	1968—1976	1–1–0 1973 Belgrade WAP gold; 1975 Cali WAP silver
Sofya Konukh	RUS	WPO	2000—2012	0–0–4 2003 Barcelona WAP bronze; 2007 Melbourne WAP bronze; 2009 Rome WAP bronze; 2011 Shanghai WAP bronze
Sergey Koplyakov	BLR URS	SWM	1976—1980	0–1–1 1978 West Berlin SWI silver: 4×200 m freestyle relay, bronze: 200 m freestyle
Darya Korobova	RUS	SWA	2012	8–0–0 2009 Roma SYN gold: team Technical and team Free; 2011 Shanghai SYN gold: team Technical, team Free, and team Free Routine Combination; 2013 Barcelona SYN gold: team Technical, team Free, and team Free Routine Combination
Yevgeny Korotyshkin	RUS	SWM	2004—2012	0–2–1 2003 Barcelona SWI silver: 4×100 m medley relay (swam in heats only), bronze: 50 m butterfly; 2005 Montréal SWI silver: 4×100 m medley relay (swam in heats only)
Dirk Korthals	FRG	SWM	1984	0–1–1 1982 Guayaquil SWI bronze: 4×200 m freestyle relay; 1986 Madrid SWI silver: 4×200 m freestyle relay (swam in heats only)
Paweł Korzeniowski	POL	SWM	2004—2020	1–2–0 2005 Montréal SWI gold: 200 m butterfly; 2009 Roma SWI silver: 200 m butterfly; 2013 Barcelona SWI silver: 200 m butterfly
Yasuhiro Koseki	JPN	SWM	2016	0–1–0 2017 Budapest SWI silver: 200 m breaststroke
Zoltán Kósz	HUN	WPO	1988—2000	0–1–0 1998 Perth WAP silver
Mikako Kotani	JPN	SWA	1988—1992	0–1–3 1986 Madrid SYN bronze: duet and team; 1991 Perth SYN silver: duet, bronze: solo
Sergey Kotenko	KAZ URS	WPO	1976—1988	1–0–1 1982 Guayaquil WAP gold; 1986 Madrid WAP bronze
Rosemarie Kother-Gabriel	GDR	SWM	1972—1976	4–2–0 1973 Belgrade SWI gold: 200 m butterfly and 4×100 m medley relay, silver: 100 m butterfly (competed as Rosemarie Kother); 1975 Cali SWI gold: 200 m butterfly and 4×100 m medley relay, silver: 100 m butterfly (competed as Rosemarie Kother)
Ditte Kotzian	GER	DIV	2000—2008	0–2–1 2001 Fukuoka DIV bronze: synchronized springboard; 2005 Montréal DIV silver: synchronized springboard; 2007 Melbourne DIV silver: synchronized springboard
Ágnes Kovács	HUN	SWM	1996—2004	2–0–1 1998 Perth SWI gold: 200 m breaststroke; 2001 Fukuoka SWI gold: 200 m breaststroke, bronze: 100 m breaststroke
Rita Kovács	HUN	SWM	1996	0–1–2 1991 Perth SWI bronze: 25 km open water team; 1994 Roma SWI silver: 25 km open water, bronze: 25 km open water team
Mariya Kovtunovskaya	RUS	WPO	2012	0–0–3 2007 Melbourne WAP bronze; 2009 Rome WAP bronze; 2011 Shanghai WAP bronze
Kristy Kowal	USA	SWM	2000	2–2–0 1998 Perth SWI gold: 100 m breaststroke and 4×100 m medley relay, silver: 200 m breaststroke and 50 m breaststroke
Daniel Kowalski	AUS	SWM	1996—2000	1–1–1 1994 Roma SWI silver: 1500 m freestyle; 1998 Perth SWI gold: 4×200 m freestyle relay, bronze: 1500 m freestyle
Nikolay Kozlov	RUS EUN	WPO	1992—2004	0–0–2 1994 Rome WAP bronze (competed for Russia); 2001 Fukuoka WAP bronze (competed for Russia)
Anna Kozlova	RUS EUN USA	SWA	1992—2004	0–1–1 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team (competed for the United States)
Dominik Kozma	HUN	SWM	2008—2020	0–0–1 2017 Budapest SWI bronze: 4×100 m freestyle relay
Gordan Kožulj	CRO	SWM	1996—2008	0–1–0 2003 Barcelona SWI silver: 200 m backstroke
Ivan Krapić	CRO	WPO	2016	1–0–0 2017 Budapest WAP gold
Aleksandr Krasnykh	ROC RUS	SWM	2016—2020	0–2–1 2017 Budapest SWI silver: 4×200 m freestyle relay, bronze: 200 m freestyle; 2019 Gwangju SWI silver: 4×200 m freestyle relay
Sergey Krasyuk	URS UKR	SWM	1980	0–4–0 1978 West Berlin SWI silver: 4×200 m freestyle relay (swam in heats only); 1982 Guayaquil SWI silver: 4×100 m freestyle relay, 4×200 m freestyle relay (swam in heats only), and 4×100 m medley relay (swam in heats only)
Michael Kraus	FRG	SWM	1976	0–2–0 1975 Cali SWI silver: 4×100 m medley relay; 1978 West Berlin SWI silver: 4×100 m medley relay
Barbara Krause	GDR	SWM	1980	2–3–0 1975 Cali SWI gold: 4×100 m freestyle relay; 1978 West Berlin SWI gold: 100 m freestyle, silver: 200 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay
Lenny Krayzelburg	USA	SWM	2000—2004	2–1–0 1998 Perth SWI gold: 100 m backstroke and 200 m backstroke, silver: 4×100 m medley relay
Milorad Krivokapić	MNE YUG	WPO	1980—1984	1–0–0 1986 Madrid WAP gold
Vladimir Krivtsov	AZE URS	SWM	1972	0–1–0 1973 Belgrade SWI silver: 4×100 m freestyle relay
Ranomi Kromowidjojo	NED	SWM	2008—2020	3–8–6 2007 Melbourne SWI bronze: 4×100 m freestyle relay; 2009 Roma SWI gold: 4×100 m freestyle relay; 2011 Shanghai SWI gold: 4×100 m freestyle relay, silver: 50 m freestyle, bronze: 100 m freestyle; 2013 Barcelona SWI gold: 50 m freestyle, bronze: 100 m freestyle, 50 m butterfly, and bronze: 4×100 m freestyle relay; 2015 Kazan SWI silver: 50 m freestyle, 4×100 m freestyle relay, and 4×100 m freestyle mixed relay; 2017 Budapest SWI silver: 50 m freestyle, 50 m butterfly, and 4×100 m freestyle mixed relay, bronze: 4×100 m freestyle relay; 2019 Gwangju SWI silver: 50 m butterfly
Yelena Kruglova	URS UKR	SWM	1980	0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay
Jens Kruppa	GER	SWM	2000—2004	0–1–0 2001 Fukuoka SWI silver: 4×100 m medley relay
Kelly Kryczka	CAN	SWA	1984	2–1–0 1982 Guayaquil SYN gold: duet and team, silver: solo
Andrey Krylov	RUS URS	SWM	1976—1980	0–2–1 1975 Cali SWI bronze: 4×200 m freestyle relay (competed for the Soviet Union); 1978 West Berlin SWI silver: 4×200 m freestyle relay (competed for the Soviet Union); 1982 Guayaquil SWI silver: 4×200 m freestyle relay (swam in heats only) (competed for the Soviet Union)
Yury Kudinov	KAZ	OWS	2012	3–1–0 2001 Fukuoka SWI gold: 25 km open water (competed for Russia); 2003 Barcelona SWI gold: 25 km open water (competed for Russia); 2005 Montréal SWI silver: 25 km open water team (competed for Russia); 2007 Melbourne SWI gold: 25 km open water (competed for Russia)
Michael Kühne	GER	DIV	1992—1996	0–1–0 1998 Perth DIV silver: synchronized platform
Karin Kuipers	NED	WPO	2000	0–2–0 1994 Rome WAP silver; 1998 Perth WAP silver
Ariana Kukors	USA	SWM	2012	1–1–1 2009 Roma SWI gold: 200 m medley, silver: 4×200 m freestyle relay; 2011 Shanghai SWI bronze: 200 m medley
Kasia Kulesza (DNS)	CAN	SWA	1996	0–1–0 1994 Roma SYN silver: team
Vladislav Kulikov	RUS EUN	SWM	1992—1996	0–3–3 1991 Perth SWI silver: 4×100 m medley relay, bronze: 100 m butterfly (competed for the Soviet Union); 1994 Roma SWI silver: 4×100 m freestyle relay (swam in heats only) and 4×100 m medley relay (swam in heats only) (competed for Russia); 1998 Perth SWI bronze: 4×100 m freestyle relay (competed for Russia); 2001 Fukuoka SWI bronze: 4×100 m medley relay (competed for Russia)
Nikola Kuljača	MNE SCG	WPO	2000	0–0–1 2003 Barcelona WAP bronze
Péter Kuna	HUN	WPO	1988—1996	0–0–1 1991 Perth WAP bronze
Aljoša Kunac	CRO	WPO	2008	1–0–0 2007 Melbourne WAP gold
László Kuncz	HUN	WPO	1980	0–1–0 1982 Guayaquil WAP silver
Walter Kusch	FRG	SWM	1972—1976	1–2–1 1975 Cali SWI silver: 4×100 m medley relay; 1978 West Berlin SWI gold: 100 m breaststroke, silver: 4×100 m medley relay, bronze: 200 m breaststroke
Olga Kuzhela	RUS	SWA	2008	5–0–0 2005 Montréal SYN gold: team and team Free Routine Combination; 2007 Melbourne SYN gold: team Technical, team Free, and team Free Routine Combination
Viktor Kuznetsov	RUS URS	SWM	1980	0–1–0 1982 Guayaquil SWI silver: 4×100 m medley relay (swam in heats only)
Yevgeny Kuznetsov	ROC RUS	DIV	2012—2020	1–4–1 2011 Shanghai DIV silver: synchronized springboard, bronze: 3 m springboard; 2013 Barcelona DIV silver: 3 m springboard and synchronized springboard; 2015 Kazan DIV silver: synchronized springboard; 2017 Budapest DIV gold: synchronized springboard
Illia Kvasha	UKR	DIV	2008—2016	0–2–1 2013 Barcelona DIV silver: 1 m springboard; 2015 Kazan DIV silver: 1 m springboard; 2017 Budapest DIV bronze: synchronized springboard
Camille Lacourt	FRA	SWM	2012—2016	5–2–1 2011 Shanghai SWI gold: 100 m backstroke, silver: 50 m backstroke; 2013 Barcelona SWI gold: 50 m backstroke and 4×100 m medley relay; 2015 Kazan SWI gold: 50 m backstroke, silver: 100 m backstroke, bronze: 4×100 m medley relay; 2017 Budapest SWI gold: 50 m backstroke
Yevgeny Lagunov	RUS	SWM	2004—2012	0–3–2 2005 Montréal SWI silver: 4×100 m medley relay (swam in heats only); 2007 Melbourne SWI bronze: 4×100 m medley relay; 2009 Roma SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay (swam in heats only); 2013 Barcelona SWI bronze: 4×100 m freestyle relay (swam in heats only)
Whynter Lamarre	CAN	WPO	2004	0–0–2 2001 Fukuoka WAP bronze; 2005 Montréal WAP bronze
Giorgio Lamberti	ITA	SWM	1988—1992	1–0–2 1991 Perth SWI gold: 200 m freestyle, bronze: 100 m freestyle and 4×200 m freestyle relay
Éve Lamoureux	CAN	SWA	2008	0–0–1 2009 Roma SYN bronze: team Free Routine Combination
Oliver Lampe	GER	SWM	1996	0–0–1 1994 Roma SWI bronze: 4×200 m freestyle relay
Werner Lampe	FRG	SWM	1972—1976	1–0–1 1973 Belgrade SWI bronze: 4×200 m freestyle relay; 1975 Cali SWI gold: 4×200 m freestyle relay
Lan Wei	CHN	DIV	1992	0–1–0 1994 Roma DIV silver: 1 m springboard
Brent Lang	USA	SWM	1988	2–0–0 1991 Perth SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
Peter Lang	FRG	SWM	1976—1984	0–1–0 1975 Cali SWI silver: 4×100 m medley relay (swam in heats only)
Colleen Lanné	USA	SWM	2004	1–1–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay (swam in heats only), silver: 4×100 m freestyle relay
Lao Lishi	CHN	DIV	2004	1–1–0 2003 Barcelona DIV gold: synchronized platform, silver: platform
Georgia Lara	GRE	WPO	2004—2008	1–0–0 2011 Shanghai WAP gold
Mitch Larkin	AUS	SWM	2012—2020	3–2–1 2015 Kazan SWI gold: 100 m backstroke and 200 m backstroke, silver: 4×100 m medley relay; 2017 Budapest SWI silver: 4×100 m medley mixed relay; 2019 Gwangju SWI gold: 4×100 m medley mixed relay, bronze: 100 m backstroke
Christine Larsen	CAN	SWA	1996	0–1–0 1991 Perth SYN silver: team
Karin Larsen	CAN	SWA	1988	1–0–0 1986 Madrid SYN gold: team
Breeja Larson	USA	SWM	2012	1–0–0 2013 Barcelona SWI gold: 4×100 m medley relay (swam in heats only)
David Larson	USA	SWM	1984	2–0–0 1978 West Berlin SWI gold: 4×100 m freestyle relay (swam in heats only) and 4×200 m freestyle relay (swam in heats only)
Dan Larsson	SWE	SWM	1976	0–0–1 1978 West Berlin SWI bronze: 4×100 m freestyle relay
Gunnar Larsson	SWE	SWM	1968—1972	1–0–0 1973 Belgrade SWI gold: 200 m medley
Irina Lashko	AUS RUS URS EUN	DIV	1988—2004	3–2–0 1991 Perth DIV silver: 3 m springboard (competed for the Soviet Union); 1998 Perth DIV gold: 1 m springboard and synchronized springboard (competed for Russia); 2001 Fukuoka DIV silver: 3 m springboard (competed for Australia); 2003 Barcelona DIV gold: 1 m springboard (competed for Australia)
Jack Laugher	GBR	DIV	2012—2020	0–1–3 2015 Kazan DIV bronze: 3 m springboard and synchronized springboard; 2019 Gwangju DIV silver: synchronized springboard, bronze: 3 m springboard
Andrew Lauterstein	AUS	SWM	2008	1–0–1 2007 Melbourne SWI gold: 4×100 m medley relay; 2009 Roma SWI bronze: 4×100 m medley relay
Micah Lawrence	USA	SWM	2012	0–1–1 2013 Barcelona SWI bronze: 200 m breaststroke; 2015 Kazan SWI silver: 200 m breaststroke
Mylène Lazare	FRA	SWM	2012	0–0–1 2013 Barcelona SWI bronze: 4×200 m freestyle relay
Chad le Clos	RSA	SWM	2010—2020	4–1–2 2013 Barcelona SWI gold: 100 m butterfly and 200 m butterfly; 2015 Kazan SWI gold: 100 m butterfly, silver: 200 m butterfly; 2017 Budapest SWI gold: 200 m butterfly; 2019 Gwangju SWI bronze: 100 m butterfly and 200 m butterfly
Le Jingyi	CHN	SWM	1992—1996	4–0–0 1994 Roma SWI gold: 50 m freestyle, 100 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay
Robin Leamy	USA	SWM	1984	1–0–0 1982 Guayaquil SWI gold: 4×100 m freestyle relay
Stéphanie Leclair	CAN	SWA	2012	0–0–2 2009 Roma SYN bronze: team Free Routine Combination; 2011 Shanghai SYN bronze: team Free Routine Combination
Katie Ledecky	USA	SWM	2012—2020	15–3–0 2013 Barcelona SWI gold: 400 m freestyle, 800 m freestyle, 1500 m freestyle, and 4×200 m freestyle relay; 2015 Kazan SWI gold: 200 m freestyle, 400 m freestyle, 800 m freestyle, 1500 m freestyle, and 4×200 m freestyle relay; 2017 Budapest SWI gold: 400 m freestyle, 800 m freestyle, 1500 m freestyle, 4×100 m freestyle relay, and 4×200 m freestyle relay, silver: 200 m freestyle; 2019 Gwangju SWI gold: 800 m freestyle, silver: 400 m freestyle and 4×200 m freestyle relay
Karen Legg	GBR	SWM	2000	1–0–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay
David Leigh	GBR	SWM	1976	0–0–1 1975 Cali SWI bronze: 100 m breaststroke
Ingrid Leijendekker	NED	WPO	2000	0–2–0 1994 Rome WAP silver; 1998 Perth WAP silver
Paula Leitón	ESP	WPO	2016—2020	0–2–0 2017 Budapest WAP silver; 2019 Gwangju WAP silver
Libby Lenton-Trickett	AUS	SWM	2004—2012	8–3–3 2003 Barcelona SWI bronze: 4×100 m freestyle relay (competed as Libby Lenton); 2005 Montréal SWI gold: 50 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 100 m butterfly and 4×200 m freestyle relay (competed as Libby Lenton); 2007 Melbourne SWI gold: 50 m freestyle, 100 m freestyle, 100 m butterfly, 4×100 m freestyle relay, and 4×100 m medley relay (competed as Libby Lenton); 2009 Roma SWI silver: 4×100 m medley relay, bronze: 100 m freestyle and 4×100 m freestyle relay (competed as Libby Trickett)
Mark Lenzi	USA	DIV	1992—1996	0–1–0 1991 Perth DIV silver: 1 m springboard
Leong Mun Yee	MAS	DIV	2000—2020	0–1–2 2009 Roma DIV bronze: synchronized platform; 2013 Barcelona DIV bronze: synchronized platform; 2019 Gwangju DIV silver: synchronized platform
Fanny Létourneau	CAN	SWA	2000—2004	0–0–2 2001 Fukuoka SYN bronze: duet and team
Amaury Leveaux	FRA	SWM	2004—2012	1–0–3 2007 Melbourne SWI bronze: 4×100 m freestyle relay (swam in heats only); 2009 Roma SWI bronze: 50 m freestyle and 4×100 m freestyle relay (swam in heats only); 2013 Barcelona SWI gold: 4×100 m freestyle relay (swam in heats only)
Hayley Lewis	AUS	SWM	1992—2000	1–3–2 1991 Perth SWI gold: 200 m freestyle, silver: 400 m freestyle and 400 m medley, bronze: 200 m butterfly; 1994 Roma SWI silver: 800 m freestyle; 2001 Fukuoka SWI bronze: 5 km open water
Jason Lezak	USA	SWM	2000—2012	4–1–1 2003 Barcelona SWI gold: 4×100 m medley relay, silver: 4×100 m freestyle relay; 2005 Montréal SWI gold: 4×100 m freestyle relay and 4×100 m medley relay; 2007 Melbourne SWI gold: 4×100 m freestyle relay; 2011 Shanghai SWI bronze: 4×100 m freestyle relay
Li Guangyuan	CHN	SWM	2014—2016	0–0–1 2017 Budapest SWI bronze: 4×100 m medley mixed relay (swam in heats only)
Li Hongping	CHN	DIV	1984	0–0–1 1986 Madrid DIV bronze: 3 m springboard
Li Kongzheng	CHN	DIV	1984—1988	0–1–0 1986 Madrid DIV silver: platform
Li Na	CHN	DIV	2000	0–0–1 2003 Barcelona DIV bronze: platform
Li Ting	CHN	DIV	2004	2–0–0 2003 Barcelona DIV gold: synchronized platform; 2005 Montréal DIV gold: synchronized springboard
Li Xiaolu	CHN	SWA	2016	0–3–0 2015 Kazan SYN silver: team Technical, team Free, and team Free Routine Combination
Li Xuanxu	CHN	SWM	2008—2012	0–0–1 2011 Shanghai SWI bronze: 1500 m freestyle
Li Yihua	CHN	DIV	1984	0–1–0 1986 Madrid DIV silver: 3 m springboard
Li Yunqi	CHN	SWM	2012	0–0–2 2011 Shanghai SWI bronze: 4×200 m freestyle relay; 2013 Barcelona SWI bronze: 4×200 m freestyle relay
Li Zhesi	CHN	SWM	2008	1–1–0 2009 Roma SWI gold: 4×100 m medley relay; 2011 Shanghai SWI silver: 4×100 m medley relay (swam in heats only)
Li Zhuhao	CHN	SWM	2014—2016	0–0–1 2017 Budapest SWI bronze: 4×100 m medley mixed relay (swam in heats only)
Lian Junjie	CHN	DIV	2018	2–0–0 2017 Budapest DIV gold: synchronized platform (mixed); 2019 Gwangju DIV gold: synchronized platform (mixed)
Liang Xinping	CHN	SWA	2016—2020	1–8–0 2015 Kazan SYN silver: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN gold: team Free Routine Combination, silver: team Technical and team Free; 2019 Gwangju SYN silver: team Technical, team Free, and team Free Routine Combination
Myriam Lignot	FRA	SWA	1996—2000	0–0–1 1998 Perth SYN bronze: duet
Josefin Lillhage	SWE	SWM	1996—2008	0–0–1 2005 Montréal SWI bronze: 200 m freestyle
Felipe Lima	BRA	SWM	2012—2020	0–1–1 2013 Barcelona SWI bronze: 100 m breaststroke; 2019 Gwangju SWI silver: 50 m breaststroke
Marianne Limpert	CAN	SWM	1992—2000	0–0–0 1991 Perth silver: 4×50 m freestyle relay (demonstration event)
Lin Li	CHN	SWM	1988—1996	2–0–0 1991 Perth SWI gold: 200 m medley and 400 m medley
Lin Shan	CHN	DIV	2018	1–0–0 2019 Gwangju DIV gold: team
Lin Yue	CHN	DIV	2008—2016	3–0–1 2007 Melbourne DIV gold: synchronized platform, bronze: platform; 2009 Roma DIV gold: synchronized platform; 2015 Kazan DIV gold: synchronized platform
Holly Lincoln-Smith	AUS	WPO	2012—2016	0–1–0 2013 Barcelona WAP silver
Kim Linehan	USA	SWM	1984	1–0–2 1978 West Berlin SWI bronze: 400 m freestyle and 800 m freestyle; 1982 Guayaquil SWI gold: 800 m freestyle
Karla Linke	GDR	SWM	1976	0–1–1 1975 Cali SWI silver: 400 m medley, bronze: 200 m breaststroke
Jeremy Linn	USA	SWM	1996	0–1–0 1998 Perth SWI silver: 4×100 m medley relay (swam in heats only)
Kiki Liosi	GRE	WPO	2004—2008	1–0–0 2011 Shanghai WAP gold
Silke Lippok	GER	SWM	2012	0–0–1 2011 Shanghai SWI bronze: 4×100 m freestyle relay
Oleh Lisohor	UKR	SWM	2000—2008	2–1–0 2001 Fukuoka SWI gold: 50 m breaststroke; 2003 Barcelona SWI silver: 50 m breaststroke; 2007 Melbourne SWI gold: 50 m breaststroke
Jay Litherland	USA	SWM	2016—2020	0–1–1 2017 Budapest SWI bronze: 4×200 m freestyle relay (swam in heats only); 2019 Gwangju SWI silver: 400 m medley
Tracy Little	CAN	SWA	2008—2012	0–0–1 2011 Shanghai SYN bronze: team Free Routine Combination
Liu Huixia	CHN	DIV	2016	2–0–0 2013 Barcelona DIV gold: synchronized platform; 2015 Kazan DIV gold: synchronized platform
Liu Jing	CHN	SWM	2008—2012	1–0–1 2009 Roma SWI gold: 4×200 m freestyle relay; 2011 Shanghai SWI bronze: 4×200 m freestyle relay
Liu Limin	CHN	SWM	1996—2000	3–0–0 1994 Roma SWI gold: 100 m butterfly, 200 m butterfly, and 4×100 m medley relay
Liu Ou	CHN	SWA	2008—2012	0–5–2 2009 Roma SYN silver: team Free Routine Combination, bronze: team Technical and team Free; 2011 Shanghai SYN silver: duet Technical, team Technical, team Free, and team Free Routine Combination
Liu Ping	CHN	WPO	2008—2012	0–1–0 2011 Shanghai WAP silver
Liu Xiang	CHN	SWM	2016	0–0–1 2015 Kazan SWI bronze: 50 m backstroke
Liu Zige	CHN	SWM	2008—2012	1–1–1 2009 Roma SWI silver: 200 m butterfly; 2011 Shanghai SWI bronze: 200 m butterfly; 2013 Barcelona SWI gold: 200 m butterfly
Nicole Livingstone-Stevenson	AUS	SWM	1988—1996	0–1–0 1991 Perth SWI silver: 4×100 m medley relay (competed as Nicole Livingstone)
Sandra Lizé	CAN	WPO	2000	0–0–1 2001 Fukuoka WAP bronze
Danyon Loader	NZL	SWM	1992—1996	0–1–2 1994 Roma SWI silver: 200 m butterfly; 1994 Roma SWI bronze: 200 m freestyle and 400 m freestyle
Nikita Lobintsev	RUS	SWM	2008—2016	0–4–1 2009 Roma SWI silver: 4×200 m freestyle relay; 2013 Barcelona SWI silver: 4×200 m freestyle relay, bronze: 4×100 m freestyle relay; 2015 Kazan SWI silver: 4×100 m freestyle relay; 2017 Budapest SWI silver: 4×200 m freestyle relay (swam in heats only)
Artyom Lobuzov	RUS	SWM	2012	0–1–0 2013 Barcelona SWI silver: 4×200 m freestyle relay
Ryan Lochte	USA	SWM	2004—2016	18–5–4 2005 Montréal SWI gold: 4×200 m freestyle relay, bronze: 200 m backstroke and 200 m medley; 2007 Melbourne SWI gold: 200 m backstroke and 4×200 m freestyle relay, silver: 100 m backstroke, 200 m medley, and 400 m medley; 2009 Roma SWI gold: 200 m medley, 400 m medley, 4×100 m freestyle relay, and 4×200 m freestyle relay, bronze: 200 m backstroke; 2011 Shanghai SWI gold: 200 m freestyle, 200 m backstroke, 200 m medley, 400 m medley, and 4×200 m freestyle relay, bronze: 4×100 m freestyle relay (swam in heats only); 2013 Barcelona SWI gold: 200 m backstroke, 200 m medley, and 4×200 m freestyle relay, silver: 4×100 m freestyle relay; 2015 Kazan SWI gold: 200 m Medley, 4×100 m medley relay (swam in heats only), and 4×100 m freestyle mixed relay, 4×200 m freestyle relay
Sven Lodziewski	GDR	SWM	1988	1–1–3 1982 Guayaquil SWI bronze: 400 m freestyle (competed for East Germany); 1986 Madrid SWI gold: 4×200 m freestyle relay, silver: 200 m freestyle, bronze: 4×100 m freestyle relay (competed for East Germany); 2001 Fukuoka SWI bronze: 4×100 m freestyle relay (competed for Germany)
Thomas Loebb	FRG	WPO	1984	0–0–1 1982 Guayaquil WAP bronze
Luka Lončar	CRO	WPO	2016—2020	1–1–2 2013 Barcelona WAP bronze; 2015 Kazan WAP silver; 2017 Budapest WAP gold; 2019 Gwangju WAP bronze
Martín López-Zubero	ESP	SWM	1988—1996	2–1–1 1991 Perth SWI gold: 200 m backstroke, bronze: 100 m backstroke; 1994 Roma SWI gold: 100 m backstroke, silver: 200 m backstroke
Daniel López	ESP	WPO	2012—2020	0–2–0 2009 Rome WAP silver; 2019 Gwangju WAP silver
Laura López	ESP	WPO	2012—2016	1–0–0 2013 Barcelona WAP gold
Ericka Lorenz	USA	WPO	2000—2004	2–1–0 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP gold
Greg Louganis	USA	DIV	1976—1988	5–0–0 1978 West Berlin DIV gold: platform; 1982 Guayaquil DIV gold: 3 m springboard and platform; 1986 Madrid DIV gold: 3 m springboard and platform
Lea Loveless	USA	SWM	1992	2–1–0 1994 Roma SWI silver: 4×100 m medley relay; 1998 Perth SWI gold: 100 m backstroke and 4×100 m medley relay
Sara Lowe	USA	SWA	2004	0–1–1 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team
Lu Bin	CHN	SWM	1992	3–2–0 1994 Roma SWI gold: 200 m medley, 4×100 m freestyle relay, and 4×200 m freestyle relay, silver: 100 m freestyle and 200 m freestyle
Lu Ying	CHN	SWM	2012—2016	1–2–3 2011 Shanghai SWI silver: 4×100 m medley relay, bronze: 100 m butterfly; 2013 Barcelona SWI silver: 50 m butterfly; 2015 Kazan SWI gold: 4×100 m medley relay, bronze: 50 m butterfly and 100 m butterfly
Lu Zhiwu	CHN	SWM	2008—2012	0–0–1 2013 Barcelona SWI bronze: 4×200 m freestyle relay (swam in heats only)
Adam Lucas	AUS	SWM	2004	0–0–1 2005 Montréal SWI bronze: 4×200 m freestyle relay (swam in heats only)
Wendy Lucero	USA	DIV	1988	0–1–0 1991 Perth DIV silver: 1 m springboard
Igor Lukashin	RUS	DIV	2000	0–0–1 1998 Perth DIV bronze: synchronized platform
Kristina Lum	USA	SWA	2000	0–1–1 1998 Perth SYN bronze: team; 2015 Kazan SYN silver: duet Free (mixed) (competed as Kristina Lum-Underwood)
Steve Lundquist	USA	SWM	1984	3–0–0 1978 West Berlin SWI gold: 4×100 m medley relay (swam in heats only); 1982 Guayaquil SWI gold: 100 m breaststroke and 4×100 m medley relay
Noëmi Lung	ROU	SWM	1988—1992	0–0–1 1986 Madrid SWI bronze: 400 m medley
Luo Nan	CHN	SWM	2008	0–0–1 2007 Melbourne SWI bronze: 4×100 m medley relay
Luo Xi	CHN	SWA	2008—2012	0–4–2 2009 Roma SYN silver: team Free Routine Combination, bronze: team Technical and team Free; 2011 Shanghai SYN silver: team Technical, team Free, and team Free Routine Combination
Luo Xuejuan	CHN	SWM	2000—2004	5–0–2 2001 Fukuoka SWI gold: 50 m breaststroke and 100 m breaststroke, bronze: 200 m breaststroke and 4×100 m medley relay; 2003 Barcelona SWI gold: 50 m breaststroke, 100 m breaststroke, and 4×100 m medley relay
Luo Yutong	CHN	DIV	2012	2–0–0 2007 Melbourne DIV gold: 1 m springboard; 2011 Shanghai DIV gold: synchronized springboard
Yannick Lupien	CAN	SWM	2000—2004	0–1–0 2005 Montréal SWI silver: 4×100 m freestyle relay
Annika Lurz	GER	SWM	2008	0–3–0 2005 Montréal SWI silver: 4×100 m freestyle relay; 2007 Melbourne SWI silver: 200 m freestyle and 4×200 m freestyle relay
Thomas Lurz	GER	OWS/SWM	2004—2012	8–4–2 2005 Montréal SWI gold: 5 km open water and 10 km open water team, silver: 10 km open water; 2007 Melbourne SWI gold: 5 km open water, silver: 10 km open water; 2009 Roma SWI gold: 5 km open water and 10 km open water; 2011 Shanghai SWI gold: 5 km open water, silver: 10 km open water, bronze: 5 km open water team; 2013 Barcelona SWI gold: 25 km open water and 5 km open water team, silver: 10 km open water, bronze: 5 km open water
Deni Lušić	CRO YUG	WPO	1984—1988	1–0–0 1986 Madrid WAP gold
Marianna Lymberta	GRE	OWS/SWM	2000—2012	0–0–1 2011 Shanghai SWI bronze: 10 km open water
Ma Huanhuan	CHN	WPO	2008—2016	0–1–0 2011 Shanghai WAP silver
Annelies Maas	NED	SWM	1976—1980	0–0–2 1982 Guayaquil SWI bronze: 200 m freestyle and 4×100 m freestyle relay
Marko Macan	CRO	WPO	2016—2020	1–0–1 2017 Budapest WAP gold; 2019 Gwangju WAP bronze
Ian MacKenzie	CAN	SWM	1972	0–0–1 1973 Belgrade SWI bronze: 4×100 m medley relay
Linda MacKenzie	AUS	SWM	2004—2008	0–2–0 2003 Barcelona SWI silver: 4×200 m freestyle relay; 2005 Montréal SWI silver: 4×200 m freestyle relay
Norbert Madaras	HUN	WPO	2004—2012	2–2–0 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP silver; 2013 Barcelona WAP gold
István Magas	HUN	WPO	1972	0–2–0 1975 Cali WAP silver; 1978 West Berlin WAP silver
Filippo Magnini	ITA	SWM	2004—2016	2–1–1 2005 Montréal SWI gold: 100 m freestyle; 2007 Melbourne SWI gold: 100 m freestyle, silver: 4×100 m freestyle relay; 2015 Kazan SWI bronze: 4×100 m freestyle relay
Christine Magnuson	USA	SWM	2008	1–0–0 2011 Shanghai SWI gold: 4×100 m medley relay (swam in heats only)
James Magnussen	AUS	SWM	2012—2016	3–2–0 2011 Shanghai SWI gold: 100 m freestyle and 4×100 m freestyle relay, silver: 4×100 m medley relay; 2013 Barcelona SWI gold: 100 m freestyle, silver: 4×100 m medley relay
Per-Alvar Magnusson	SWE	SWM	1980	0–0–2 1978 West Berlin SWI bronze: 4×100 m freestyle relay; 1982 Guayaquil SWI bronze: 4×100 m freestyle relay (swam in heats only)
Sandrine Mainville	CAN	SWM	2016	0–0–2 2015 Kazan SWI bronze: 4×100 m freestyle mixed relay; 2017 Budapest SWI bronze: 4×100 m freestyle mixed relay (swam in heats only)
Nikolay Maksimov	KAZ RUS	WPO	1996—2012	0–0–1 1994 Rome WAP bronze (competed for Russia)
Giusi Malato	ITA	WPO	2004	2–1–1 1994 Rome WAP bronze; 1998 Perth WAP gold; 2001 Fukuoka WAP gold; 2003 Barcelona WAP silver
Tom Malchow	USA	SWM	1996—2004	0–1–2 1998 Perth SWI bronze: 200 m butterfly; 2001 Fukuoka SWI silver: 200 m butterfly; 2003 Barcelona SWI bronze: 200 m butterfly
Blai Mallarach	ESP	WPO	2012—2020	0–2–0 2009 Rome WAP silver; 2019 Gwangju WAP silver
Grégory Mallet	FRA	SWM	2008—2016	1–1–2 2007 Melbourne SWI bronze: 4×100 m freestyle relay (swam in heats only); 2009 Roma SWI bronze: 4×100 m freestyle relay; 2011 Shanghai SWI silver: 4×200 m freestyle relay; 2013 Barcelona SWI gold: 4×100 m freestyle relay (swam in heats only)
Florent Manaudou	FRA	SWM	2012—2020	4–0–0 2013 Barcelona SWI gold: 4×100 m freestyle relay; 2015 Kazan SWI gold: 50 m freestyle, 50 m butterfly, and 4×100 m freestyle relay
Laure Manaudou	FRA	SWM	2004—2012	3–2–1 2005 Montréal SWI gold: 400 m freestyle; 2007 Melbourne SWI gold: 200 m freestyle and 400 m freestyle, silver: 800 m freestyle and 100 m backstroke, bronze: 4×200 m freestyle relay
Dušan Mandić	SRB	WPO	2012—2020	1–0–1 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Andrea Mangiante	ITA	WPO	2008	0–1–0 2003 Barcelona WAP silver
Krisztián Manhercz	HUN	WPO	2016—2020	0–1–0 2017 Budapest WAP silver
Simone Manuel	USA	SWM	2016—2020	11–3–2 2013 Barcelona SWI gold: 4×100 m freestyle relay (swam in heats only); 2015 Kazan SWI gold: 4×100 m freestyle mixed relay, bronze: 4×100 m freestyle relay; 2017 Budapest SWI gold: 100 m freestyle, 4×100 m freestyle relay, 4×100 m medley relay, 4×100 m freestyle mixed relay, and 4×100 m medley mixed relay, bronze: 50 m freestyle; 2019 Gwangju SWI gold: 50 m freestyle, 100 m freestyle, 4×100 m medley relay, and 4×100 m freestyle mixed relay, silver: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley mixed relay
Roxana Maracineanu	FRA	SWM	2000	1–0–0 1998 Perth SWI gold: 200 m backstroke
Xavier Marchand	FRA	SWM	1996—2000	0–1–0 1998 Perth SWI silver: 200 m medley
Igor Marchenko	RUS	SWM	2000—2004	0–2–1 2001 Fukuoka SWI bronze: 4×100 m medley relay (swam in heats only); 2003 Barcelona SWI silver: 4×100 m medley relay; 2005 Montréal SWI silver: 4×100 m medley relay
Serghei Marcoci	MDA URS EUN	WPO	1988—1992	0–0–2 1986 Madrid WAP bronze (competed for the Soviet Union); 1994 Rome WAP bronze (competed for Russia)
Gustavo Marcos	ESP	WPO	2000—2004	2–1–0 1994 Rome WAP silver; 1998 Perth WAP gold; 2001 Fukuoka WAP gold
Élise Marcotte	CAN	SWA	2008—2012	0–0–2 2009 Roma SYN bronze: team Free Routine Combination; 2011 Shanghai SYN bronze: team Free Routine Combination
Tamás Märcz	HUN	Coach/WPO	2000—2020	0–1–0 1998 Perth WAP silver
Melanie Margalis	USA	SWM	2016	2–1–0 2017 Budapest SWI gold: 4×200 m freestyle relay; 2019 Gwangju SWI gold: 4×100 m medley relay (swam in heats only), silver: 4×200 m freestyle relay
Luca Marin	ITA	SWM	2004—2016	0–1–1 2005 Montréal SWI silver: 400 m medley; 2007 Melbourne SWI bronze: 400 m medley
Laura Marino	FRA	DIV	2016	1–0–0 2017 Budapest DIV gold: team
Pavo Marković	CRO	WPO	2008	1–0–0 2007 Melbourne WAP gold
Aleksey Markovsky	RUS URS	SWM	1980	0–3–1 1982 Guayaquil SWI silver: 4×100 m freestyle relay and 4×100 m medley relay; 1986 Madrid SWI silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay
Elicia Marshall	USA	SWA	2000	0–0–1 1998 Perth SYN bronze: team
Melanie Marshall	GBR	SWM	2004—2008	0–1–0 2001 Fukuoka SWI silver: 4×100 m freestyle relay
Sante Marsili	ITA	WPO	1972—1980	1–0–1 1975 Cali WAP bronze; 1978 West Berlin WAP gold
Josée Marsolais	CAN	WPO	2000	0–0–1 2001 Fukuoka WAP bronze
David Martín	ESP	Coach/WPO	2008—2020	0–1–1 2007 Melbourne WAP bronze; 2009 Rome WAP silver
Angel Martino	USA	SWM	1992—1996	0–2–0 1994 Roma SWI silver: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
Yana Martynova	RUS	SWM	2004—2012	0–1–0 2007 Melbourne SWI silver: 400 m medley
Kei Marumo	JPN	SWA	2016	0–0–5 2015 Kazan SYN bronze: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN bronze: team Technical and team Free Routine Combination
Chiara Masini Luccetti	ITA	SWM	2016	0–1–0 2015 Kazan SWI silver: 4×200 m freestyle relay
Kylie Masse	CAN	SWM	2016—2020	2–0–3 2017 Budapest SWI gold: 100 m backstroke, bronze: 4×100 m medley mixed relay; 2019 Gwangju SWI gold: 100 m backstroke, bronze: 200 m backstroke and 4×100 m medley relay
Lou Massenberg	GER	DIV	2018	0–0–1 2019 Gwangju DIV bronze: synchronized springboard (mixed)
Manon Masseurs	NED	SWM	1996	0–1–1 1991 Perth SWI silver: 4×200 m freestyle relay, bronze: 4×100 m freestyle relay (swam in heats only)
Courtney Mathewson	USA	WPO	2012—2016	1–0–0 2015 Kazan WAP gold
Antony Matkovich	AUS	SWM	2004	2–0–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay (swam in heats only); 2003 Barcelona SWI gold: 4×200 m freestyle relay (swam in heats only)
Takeshi Matsuda	JPN	SWM	2004—2016	0–2–1 2005 Montréal SWI silver: 200 m butterfly; 2009 Roma SWI bronze: 200 m butterfly; 2011 Shanghai SWI silver: 200 m butterfly
Ayako Matsumura	JPN	SWA	2008	0–4–2 2005 Montréal SYN silver: team and team Free Routine Combination; 2007 Melbourne SYN silver: team Technical and team Free Routine Combination; 2007 Melbourne SYN bronze: duet Free and team Free
Ami Matsuo	AUS	SWM	2014	0–1–0 2013 Barcelona SWI silver: 4×200 m freestyle relay (swam in heats only)
Jordan Mattern	USA	SWM	2010	1–0–0 2013 Barcelona SWI gold: 4×200 m freestyle relay (swam in heats only)
Roland Matthes	GDR	SWM	1968—1976	3–1–1 1973 Belgrade SWI gold: 100 m backstroke and 200 m backstroke, silver: 4×100 m medley relay, bronze: 4×100 m freestyle relay; 1975 Cali SWI gold: 100 m backstroke
Matti Mattsson	FIN	SWM	2010—2020	0–0–1 2013 Barcelona SWI bronze: 200 m breaststroke
Angela Maurer	GER	OWS	2008—2012	1–3–4 2001 Fukuoka SWI bronze: 25 km open water; 2003 Barcelona SWI silver: 10 km open water, bronze: 25 km open water; 2009 Roma SWI gold: 25 km open water; 2011 Shanghai SWI silver: 25 km open water; 2013 Barcelona SWI silver: 25 km open water, bronze: 10 km open water; 2015 Kazan SWI bronze: 25 km open water
Bronwyn Mayer-Smith	AUS	WPO	2000—2004	0–0–1 1998 Perth WAP bronze (competed as Bronwyn Smith)
Wijda Mazereeuw	NED	SWM	1972—1976	0–2–1 1975 Cali SWI silver: 100 m breaststroke and 200 m breaststroke, bronze: 4×100 m medley relay
Dimitrios Mazis	GRE	WPO	2000—2008	0–0–1 2005 Montréal WAP bronze
Raimundas Mažuolis	LTU URS	SWM	1988—1996	0–0–1 1994 Roma SWI bronze: 50 m freestyle (competed for Lithuania)
Martha McCabe	CAN	SWM	2012—2016	0–0–1 2011 Shanghai SWI bronze: 200 m breaststroke
Alan McClatchey	GBR	SWM	1976	0–1–0 1975 Cali SWI silver: 4×200 m freestyle relay
Caitlin McClatchey	GBR	SWM	2004—2012	0–0–2 2005 Montréal SWI bronze: 400 m freestyle; 2009 Roma SWI bronze: 4×200 m freestyle relay
Alicia McCormack	AUS	WPO	2008—2012	0–1–0 2007 Melbourne WAP silver
Cameron McEvoy	AUS	SWM	2012—2020	0–4–2 2013 Barcelona SWI silver: 4×100 m medley relay (swam in heats only); 2015 Kazan SWI silver: 100 m freestyle and 4×100 m medley relay, bronze: 4×200 m freestyle relay; 2019 Gwangju SWI silver: 4×100 m freestyle mixed relay (swam in heats only), bronze: 4×100 m freestyle relay
Lauren McFall	USA	SWA	2004	0–1–1 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team
Tracey McFarlane	USA	SWM	1988	1–0–0 1991 Perth SWI gold: 4×100 m medley relay
Tyler McGill	USA	SWM	2012	2–0–1 2009 Roma SWI gold: 4×100 m medley relay (swam in heats only); 2011 Shanghai SWI gold: 4×100 m medley relay (swam in heats only), bronze: 100 m butterfly
David McKeon	AUS	SWM	2012—2016	0–0–1 2015 Kazan SWI bronze: 4×200 m freestyle relay
Emma McKeon	AUS	SWM	2010—2020	4–9–4 2013 Barcelona SWI silver: 4×100 m freestyle relay, 4×200 m freestyle relay (swam in heats only), and 4×100 m medley relay (swam in heats only); 2015 Kazan SWI gold: 4×100 m freestyle relay, bronze: 4×100 m medley relay; 2017 Budapest SWI silver: 200 m freestyle, 100 m butterfly, 4×100 m freestyle relay, and 4×100 m medley mixed relay, bronze: 4×200 m freestyle relay and 4×100 m medley relay; 2019 Gwangju SWI gold: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley mixed relay, silver: 4×100 m medley relay and 4×100 m freestyle mixed relay, bronze: 100 m butterfly
Kaylee McKeown	AUS	SWM	2018—2020	0–3–0 2017 Budapest SWI silver: 4×100 m medley mixed relay (swam in heats only); 2019 Gwangju SWI silver: 200 m backstroke and 4×100 m medley relay (swam in heats only)
Taylor McKeown	AUS	SWM	2016	0–0–2 2015 Kazan SWI bronze: 4×100 m medley relay; 2017 Budapest SWI bronze: 4×100 m medley relay
Matt McLean	USA	SWM	2012	1–0–0 2013 Barcelona SWI gold: 4×200 m freestyle relay (swam in heats only)
Jack McLoughlin	AUS	SWM	2016—2020	1–0–0 2019 Gwangju SWI gold: 4×200 m freestyle relay (swam in heats only)
Gavin Meadows	GBR	SWM	2004	0–0–1 1998 Perth SWI bronze: 4×200 m freestyle relay
Mary T. Meagher	USA	SWM	1984—1988	2–5–2 1982 Guayaquil SWI gold: 100 m butterfly, silver: 200 m butterfly and 4×100 m medley relay; 1986 Madrid SWI gold: 200 m butterfly, silver: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay; 1986 Madrid SWI bronze: 200 m freestyle and 100 m butterfly
Chris Mears	GBR	DIV	2012—2016	0–0–1 2015 Kazan DIV bronze: synchronized springboard
Etiene Medeiros	BRA	SWM	2016—2020	1–2–0 2015 Kazan SWI silver: 50 m backstroke; 2017 Budapest SWI gold: 50 m backstroke; 2019 Gwangju SWI silver: 50 m backstroke
Jolande van der Meer	NED	SWM	1984	0–0–1 1986 Madrid SWI bronze: 4×200 m freestyle relay
Maud van der Meer	NED	SWM	2016	1–2–2 2011 Shanghai SWI gold: 4×100 m freestyle relay (swam in heats only); 2015 Kazan SWI silver: 4×100 m freestyle relay; 2017 Budapest SWI silver: 4×100 m freestyle mixed relay (swam in heats only), bronze: 4×100 m freestyle relay and 4×100 m freestyle relay (swam in heats only)
Folkert Meeuw	FRG	SWM	1968—1976	1–0–1 1973 Belgrade SWI bronze: 4×200 m freestyle relay; 1975 Cali SWI gold: 4×200 m freestyle relay (swam in heats only)
Helge Meeuw	GER	SWM	2004—2012	0–2–2 2003 Barcelona SWI bronze: 4×200 m freestyle relay (swam in heats only); 2009 Roma SWI silver: 100 m backstroke and 4×100 m medley relay; 2011 Shanghai SWI bronze: 4×100 m medley relay
Patricia Megens	NED	WPO	2000	1–1–0 1986 Madrid WAP silver (competed as Patricia Libregts); 1991 Perth WAP gold (competed as Patricia Libregts)
Annika Mehlhorn	GER	SWM	2004	0–1–2 2001 Fukuoka SWI silver: 200 m butterfly; 2005 Montréal SWI bronze: 4×100 m medley relay; 2009 Roma SWI bronze: 4×100 m medley relay
Kersten Meier	FRG	SWM	1972	0–2–0 1975 Cali SWI silver: 4×100 m freestyle relay; 1978 West Berlin SWI silver: 4×100 m freestyle relay (swam in heats only)
Katie Meili	USA	SWM	2016	1–1–1 2017 Budapest SWI gold: 4×100 m medley relay (swam in heats only), silver: 100 m breaststroke, bronze: 50 m breaststroke
Rūta Meilutytė	LTU	SWM	2012—2016	1–2–0 2013 Barcelona SWI gold: 100 m breaststroke, silver: 50 m breaststroke; 2015 Kazan SWI silver: 100 m breaststroke
Katrin Meißner	GDR GER	SWM	1988—2000	2–4–1 1991 Perth SWI gold: 4×50 m freestyle relay (demonstration event) and 4×200 m freestyle relay (swam in heats only), silver: 4×100 m freestyle relay (swam in heats only) (competed for Germany); 1994 Roma SWI bronze: 4×100 m freestyle relay (competed for Germany); 1998 Perth SWI silver: 4×100 m freestyle relay (competed for Germany); 2001 Fukuoka SWI gold: 4×100 m freestyle relay, silver: 100 m freestyle (competed for Germany); 2003 Barcelona SWI silver: 4×100 m freestyle relay (competed for Germany)
Jarl Inge Melberg	NOR	SWM	1992	0–0–0 1991 Perth bronze: 4×50 m freestyle relay (demonstration event)
Antiopi Melidoni	GRE	WPO	2004	1–0–0 2011 Shanghai WAP gold
Oussama Mellouli	TUN	OWS/SWM	2000—2020	2–2–4 2003 Barcelona SWI bronze: 400 m medley; 2005 Montréal SWI bronze: 400 m freestyle and 400 m medley; 2009 Roma SWI gold: 1500 m freestyle, silver: 400 m freestyle and 800 m freestyle; 2013 Barcelona SWI gold: 5 km open water, bronze: 10 km open water
Nikolay Melnikov	RUS URS	WPO	1972—1976	1–0–0 1975 Cali WAP gold
Kata Menczinger	HUN	WPO	2012	0–0–1 2013 Barcelona WAP bronze
Nurlan Mendygaliyev	KAZ URS	WPO	1988	1–0–1 1982 Guayaquil WAP gold; 1986 Madrid WAP bronze
Gemma Mengual	ESP	SWA	2000—2016	1–12–6 2003 Barcelona SYN silver: solo and team Free Routine Combination, bronze: duet; 2005 Montréal SYN silver: duet, bronze: solo, team, and team Free Routine Combination; 2007 Melbourne SYN silver: solo Technical, duet Technical, duet Free, and team Free, bronze: solo Free and team Technical; 2009 Roma SYN gold: team Free Routine Combination, silver: solo Technical, solo Free, duet Technical, duet Free, and team Free
Ona Meseguer	ESP	WPO	2012	1–0–0 2013 Barcelona WAP gold
Nataliya Meshcheryakova	RUS EUN	SWM	1992—1996	0–1–1 1994 Roma SWI silver: 50 m freestyle (competed for Russia), bronze: 4×100 m medley relay (competed for Russia)
Malia Metella	FRA	SWM	2004—2008	0–1–0 2005 Montréal SWI silver: 100 m freestyle
Mehdy Metella	FRA	SWM	2010—2020	1–0–3 2015 Kazan SWI gold: 4×100 m freestyle relay, bronze: 4×100 m medley relay; 2017 Budapest SWI bronze: 100 m freestyle; 2019 Gwangju SWI bronze: 4×100 m freestyle mixed relay
Caren Metschuck	GDR	SWM	1980	1–1–0 1978 West Berlin SWI silver: 4×100 m freestyle relay; 1982 Guayaquil SWI gold: 4×100 m freestyle relay
Alex Meyer	USA	OWS	2012	0–1–0 2015 Kazan SWI silver: 25 km open water
William Meynard	FRA	SWM	2016	1–1–2 2009 Roma SWI bronze: 4×100 m freestyle relay (swam in heats only); 2011 Shanghai SWI silver: 4×100 m freestyle relay, bronze: 100 m freestyle; 2013 Barcelona SWI gold: 4×100 m freestyle relay (swam in heats only)
Martina Miceli	ITA	WPO	2004—2008	2–1–1 1994 Rome WAP bronze; 1998 Perth WAP gold; 2001 Fukuoka WAP gold; 2003 Barcelona WAP silver
Rubén Michavila	ESP	WPO	1992	1–1–0 1991 Perth WAP silver; 1998 Perth WAP gold
Chantelle Michell-Newbery	AUS	DIV	2000—2008	0–1–1 1998 Perth DIV bronze: 3 m springboard (competed as Chantelle Michell); 2005 Montréal DIV silver: synchronized platform (competed as Chantelle Newbery)
Clément Mignon	FRA	SWM	2016—2020	1–0–1 2015 Kazan SWI gold: 4×100 m freestyle relay (swam in heats only); 2019 Gwangju SWI bronze: 4×100 m freestyle mixed relay
Vladimir Mikheyev	RUS URS	SWM	1976	0–0–1 1975 Cali SWI bronze: 4×200 m freestyle relay (swam in heats only)
Kristóf Milák	HUN	SWM	2018—2020	1–1–0 2017 Budapest SWI silver: 100 m butterfly; 2019 Gwangju SWI gold: 200 m butterfly
Igor Milanović	SRB SCG YUG	WPO	1984—1996	2–0–0 1986 Madrid WAP gold (competed for Yugoslavia); 1991 Perth WAP gold (competed for Yugoslavia)
Hannah Miley	GBR	SWM	2008—2016	0–1–1 2009 Roma SWI bronze: 4×200 m freestyle relay (swam in heats only); 2011 Shanghai SWI silver: 400 m medley
Cody Miller	USA	SWM	2016	2–0–0 2015 Kazan gold: 4×100 m medley relay (swam in heats only); 2017 Budapest SWI gold: 4×100 m medley relay (swam in heats only)
Alice Mills	AUS	SWM	2004—2008	1–2–1 2003 Barcelona SWI silver: 200 m medley and 4×200 m freestyle relay, bronze: 4×100 m freestyle relay; 2005 Montréal SWI gold: 4×100 m freestyle relay
John Mills	GBR	SWM	1972—1976	0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay
Melissa Mills	AUS	WPO	2000	0–0–1 1998 Perth WAP bronze
Stephen Milne	GBR	SWM	2016	1–0–0 2017 Budapest SWI gold: 4×200 m freestyle relay
Miloš Milošević	CRO	SWM	1996—2000	0–0–0 1991 Perth bronze: 50 m butterfly (demonstration event)
Andrey Minakov	ROC RUS	SWM	2018—2020	0–2–1 2019 Gwangju SWI silver: 100 m butterfly and 4×100 m freestyle relay (swam in heats only), bronze: 4×100 m medley relay
Sumika Minamoto	JPN	SWM	1996—2000	0–0–1 1998 Perth SWI bronze: 4×100 m medley relay
Gianni Minervini	ITA	SWM	1984—1992	0–1–1 1986 Madrid SWI silver: 100 m breaststroke; 1991 Perth SWI bronze: 100 m breaststroke
Marc Minguell	ESP	WPO	2008—2016	0–1–1 2007 Melbourne WAP bronze; 2009 Rome WAP silver
Viktor Minibayev	ROC RUS	DIV	2012—2020	0–4–1 2013 Barcelona DIV silver: synchronized platform; 2015 Kazan DIV bronze: synchronized platform; 2017 Budapest DIV silver: synchronized platform; 2019 Gwangju DIV silver: synchronized platform and synchronized platform (mixed)
Mike Mintenko	CAN	SWM	2000—2004	0–1–0 2005 Montréal SWI silver: 4×100 m freestyle relay
Arturo Miranda	CAN	DIV	2008	0–1–0 2007 Melbourne DIV silver: synchronized springboard
Lorena Miranda	ESP	WPO	2012	1–0–0 2013 Barcelona WAP gold
Yelena Miroshina	RUS URS EUN	DIV	1988—1992	0–1–0 1991 Perth DIV silver: platform (competed for the Soviet Union)
Alfio Misaggi	ITA	WPO	1980—1988	0–1–0 1986 Madrid WAP silver
Saša Mišić	MNE	WPO	2016	0–1–0 2013 Barcelona WAP silver
Arsens Miskarovs	LAT URS	SWM	1980	0–1–0 1978 West Berlin SWI silver: 200 m breaststroke
Maki Mita	JPN	SWM	2000—2008	0–0–1 2001 Fukuoka SWI bronze: 4×200 m freestyle relay
Matt Mitcham	AUS	DIV	2008—2012	0–0–1 2009 Roma DIV bronze: 1 m springboard
Betsy Mitchell	USA	SWM	1984—1988	1–4–0 1986 Madrid SWI gold: 100 m backstroke, silver: 200 m backstroke, 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay
Branislav Mitrović	SRB	WPO	2016—2020	1–0–1 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Stefan Mitrović	SRB	WPO	2012—2020	2–1–1 2009 Rome WAP gold; 2011 Shanghai WAP silver; 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Risako Mitsui	JPN	SWA	2012—2016	0–0–4 2015 Kazan SYN bronze: duet Technical, team Technical, team Free, and team Free Routine Combination
Takiri Miyazaki	JPN	DIV	2004	0–0–1 2001 Fukuoka DIV bronze: synchronized platform
Alice Mizzau	ITA	SWM	2012—2016	0–1–0 2015 Kazan SWI silver: 4×200 m freestyle relay
Diana Mocanu	ROU	SWM	2000	1–1–0 2001 Fukuoka SWI gold: 200 m backstroke, silver: 100 m backstroke
John Moffet	USA	SWM	1984	1–0–2 1982 Guayaquil SWI gold: 4×100 m medley relay (swam in heats only), bronze: 100 m breaststroke and 200 m breaststroke
Guillermo Molina	ESP	WPO	2004—2016	1–1–1 2001 Fukuoka WAP gold; 2007 Melbourne WAP bronze; 2009 Rome WAP silver
Endre Molnár	HUN	WPO	1968—1980	1–2–0 1973 Belgrade WAP gold; 1975 Cali WAP silver; 1978 West Berlin WAP silver
Tamás Molnár	HUN	WPO	2000—2008	1–3–0 1998 Perth WAP silver; 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP silver
Aurore Mongel	FRA	SWM	2004—2008	0–0–1 2007 Melbourne SWI bronze: 4×200 m freestyle relay
Kenrick Monk	AUS	SWM	2008—2012	1–1–1 2007 Melbourne SWI gold: 4×100 m medley relay (swam in heats only), silver: 4×200 m freestyle relay; 2009 Roma SWI bronze: 4×200 m freestyle relay
Ana Montero	ESP	SWA	2004	0–1–0 2003 Barcelona SYN silver: team Free Routine Combination
Jim Montgomery	USA	SWM	1976	8–1–1 1973 Belgrade SWI gold: 100 m freestyle, 200 m freestyle, 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay; 1975 Cali SWI gold: 4×100 m freestyle relay, bronze: 100 m freestyle; 1978 West Berlin SWI gold: 4×100 m freestyle relay and 4×200 m freestyle relay (swam in heats only), silver: 100 m freestyle
Irene Montrucchio (DNS)	ESP	SWA	2012	0–0–1 2011 Shanghai SYN bronze: team Free
Heather Moody	USA	WPO	2000—2004	1–0–0 2003 Barcelona WAP gold
Hannah Moore	USA	SWM	2014	0–0–1 2019 Gwangju SWI bronze: 5 km open water
Adrian Moorhouse	GBR	SWM	1984—1992	0–1–0 1991 Perth SWI silver: 100 m breaststroke
Pablo Morales	USA	SWM	1984—1992	2–0–0 1986 Madrid SWI gold: 100 m butterfly and 4×100 m medley relay
Martina Moravcová	CZE TCH SVK	SWM	1992—2008	0–3–2 1998 Perth SWI silver: 100 m freestyle and 200 m freestyle, bronze: 200 m medley (competed for Slovakia); 2003 Barcelona SWI silver: 200 m freestyle, bronze: 100 m butterfly (competed for Slovakia)
Marcia Morey	USA	SWM	1976	0–2–1 1973 Belgrade SWI silver: 4×100 m medley relay; 1975 Cali SWI silver: 4×100 m medley relay, bronze: 100 m breaststroke
David Morgan	AUS	SWM	2016—2020	0–1–0 2015 Kazan SWI silver: 4×100 m medley relay (swam in heats only)
Tomomi Morita	JPN	SWM	2004—2008	0–1–2 2003 Barcelona SWI bronze: 4×100 m medley relay; 2005 Montréal SWI bronze: 4×100 m medley relay; 2007 Melbourne SWI silver: 4×100 m medley relay
Gerald Mörken	FRG	SWM	1984	0–0–2 1978 West Berlin SWI bronze: 100 m breaststroke; 1982 Guayaquil SWI bronze: 4×100 m medley relay
Daniel Moro	ESP	WPO	2000—2004	1–0–0 2001 Fukuoka WAP gold
Iván Moro	ESP	WPO	1996—2004	2–0–0 1998 Perth WAP gold; 2001 Fukuoka WAP gold
Gisela Morón (DNS)	ESP	SWA	2008	1–2–2 2003 Barcelona SYN silver: team Free Routine Combination; 2005 Montréal SYN bronze: team Free Routine Combination; 2007 Melbourne SYN silver: team Free, bronze: team Technical; 2009 Roma SYN gold: team Free Routine Combination
Vladimir Morozov	ROC RUS	SWM	2012—2020	0–3–3 2013 Barcelona SWI silver: 50 m freestyle bronze: 4×100 m freestyle relay; 2015 Kazan SWI silver: 4×100 m freestyle relay; 2017 Budapest SWI bronze: 4×100 m medley relay; 2019 Gwangju SWI silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay
Ed Moses	USA	SWM	2000	1–0–1 2001 Fukuoka SWI bronze: 100 m breaststroke; 2003 Barcelona SWI gold: 4×100 m medley relay (swam in heats only)
Anthony Mosse	NZL	SWM	1984—1988	0–1–0 1986 Madrid SWI silver: 200 m butterfly
Miwako Motoyoshi	JPN	SWA	1984	0–0–2 1982 Guayaquil SYN bronze: solo and team
Kostas Mourikis	GRE	WPO	2012—2020	0–0–1 2015 Kazan WAP bronze
Giorgi Mshvenieradze	GEO URS	WPO	1980—1988	1–0–1 1982 Guayaquil WAP gold; 1986 Madrid WAP bronze
Nuzgari Mshvenieradze	GEO URS	WPO	1976	0–1–0 1973 Belgrade WAP silver
Camille Muffat	FRA	SWM	2008—2012	0–0–4 2011 Shanghai SWI bronze: 200 m freestyle and bronze: 400 m freestyle; 2013 Barcelona SWI bronze: 200 m freestyle and 4×200 m freestyle relay
Marianne Muis	NED	SWM	1988—1996	0–1–2 1986 Madrid SWI bronze: 4×200 m freestyle relay; 1991 Perth SWI silver: 4×200 m freestyle relay, bronze: 4×100 m freestyle relay
Mildred Muis	NED	SWM	1988—1992	0–1–2 1986 Madrid SWI bronze: 4×200 m freestyle relay (swam in heats only); 1991 Perth SWI silver: 4×200 m freestyle relay, bronze: 4×100 m freestyle relay
Yury Mukhin	RUS EUN	SWM	1992	0–2–0 1994 Roma SWI silver: 4×200 m freestyle relay and 4×100 m freestyle relay (swam in heats only) (competed for Russia)
Aurélie Muller	FRA	OWS	2008—2016	3–3–0 2011 Shanghai SWI silver: 5 km open water; 2015 Kazan SWI gold: 10 km open water; 2017 Budapest SWI gold: 10 km open water and 4×1.25 km open water relay, silver: 5 km open water; 2019 Gwangju SWI silver: 5 km open water
Alberto Munárriz	ESP	WPO	2016—2020	0–1–0 2019 Gwangju WAP silver
Rafa Múñoz	ESP	SWM	2008	0–0–2 2009 Roma SWI bronze: 50 m butterfly and 100 m butterfly
Thalia Munro	USA	WPO	2004	1–1–0 2003 Barcelona WAP gold; 2005 Montréal WAP silver
Diana Munz	USA	SWM	2000—2004	2–3–2 1998 Perth SWI silver: 800 m freestyle; 2001 Fukuoka SWI gold: 4×200 m freestyle relay, silver: 800 m freestyle, bronze: 1500 m freestyle; 2003 Barcelona SWI gold: 4×200 m freestyle relay, silver: 800 m freestyle, bronze: 400 m freestyle
Ross Murdoch	GBR	SWM	2016—2020	1–1–1 2015 Kazan SWI gold: 4×100 m medley mixed relay (swam in heats only), bronze: 100 m breaststroke; 2017 Budapest SWI silver: 4×100 m medley relay (swam in heats only)
John Murphy	USA	SWM	1972	3–1–0 1973 Belgrade SWI gold: 4×100 m freestyle relay; 1975 Cali SWI gold: 4×100 m freestyle relay and 4×100 m medley relay, silver: 100 m backstroke
Patrick Murphy	AUS	SWM	2004—2008	0–1–3 2005 Montréal SWI bronze: 4×100 m freestyle relay and 4×200 m freestyle relay; 2007 Melbourne SWI silver: 4×200 m freestyle relay; 2009 Roma SWI bronze: 4×200 m freestyle relay
Ryan Murphy	USA	SWM	2016—2020	3–5–1 2015 Kazan SWI gold: 4×100 m medley relay, silver: 4×100 m medley mixed relay; 2017 Budapest SWI gold: 4×100 m medley relay (swam in heats only) and 4×100 m medley mixed relay (swam in heats only), silver: 200 m backstroke, bronze: 100 m backstroke; 2019 Gwangju SWI silver: 200 m backstroke, 4×100 m medley relay, and 4×100 m medley mixed relay
Petar Muslim	CRO	WPO	2012	0–1–2 2011 Shanghai WAP bronze; 2013 Barcelona WAP bronze; 2015 Kazan WAP silver
Maddie Musselman	USA	WPO	2016—2020	3–0–0 2015 Kazan WAP gold; 2017 Budapest WAP gold; 2019 Gwangju WAP gold
Maddalena Musumeci	ITA	WPO	2004—2008	2–1–0 1998 Perth WAP gold; 2001 Fukuoka WAP gold; 2003 Barcelona WAP silver
Curtis Myden	CAN	SWM	1992—2000	0–0–1 1998 Perth SWI bronze: 400 m medley
Emmanouil Mylonakis	GRE	WPO	2008—2016	0–0–2 2005 Montréal WAP bronze; 2015 Kazan WAP bronze
John Naber	USA	SWM	1976	1–0–1 1973 Belgrade SWI gold: 4×100 m medley relay (swam in heats only), bronze: 200 m backstroke
Shayna Nackoney	CAN	SWA	2004	0–0–1 2001 Fukuoka SYN bronze: team
Tomoko Nagai	JPN	SWM	2004	0–0–1 2001 Fukuoka SWI bronze: 4×200 m freestyle relay
Viktor Nagy	HUN	WPO	2012—2020	1–2–0 2007 Melbourne WAP silver; 2013 Barcelona WAP gold; 2017 Budapest WAP silver
Riho Nakajima	JPN	SWA	1996	0–1–0 1998 Perth SYN silver: team
Kanami Nakamaki	JPN	SWA	2016	0–0–5 2015 Kazan SYN bronze: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN bronze: team Technical and team Free Routine Combination
Mai Nakamura	JPN	SWM	1996—2000	0–1–2 1998 Perth SWI silver: 100 m backstroke, bronze: 200 m backstroke and 4×100 m medley relay
Mai Nakamura	JPN	SWA	2012—2016	0–0–5 2015 Kazan SYN bronze: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN bronze: team Technical and team Free Routine Combination
Reiko Nakamura	JPN	SWM	2004—2008	0–0–3 2005 Montréal SWI bronze: 200 m backstroke; 2007 Melbourne SWI bronze: 100 m backstroke and 200 m backstroke
Yuko Nakanishi	JPN	SWM	2000—2008	0–0–2 2003 Barcelona SWI bronze: 200 m butterfly; 2005 Montréal SWI bronze: 200 m butterfly
Eric Namesnik	USA	SWM	1992—1996	0–2–1 1991 Perth SWI silver: 200 m medley and 400 m medley; 1994 Roma SWI bronze: 400 m medley
Sergey Naumov	RUS URS EUN	Referee/WPO	1988—2016	0–0–1 1986 Madrid WAP bronze (competed for the Soviet Union)
Meagen Nay	AUS	SWM	2008—2012	0–0–1 2009 Roma SWI bronze: 4×100 m freestyle relay (swam in heats only)
Lia Neal	USA	SWM	2012—2016	2–2–1 2015 Kazan SWI silver: 4×100 m medley mixed relay (swam in heats only), bronze: 4×100 m freestyle relay; 2017 Budapest SWI gold: 4×100 m freestyle relay (swam in heats only) and 4×100 m freestyle mixed relay (swam in heats only); 2019 Gwangju SWI silver: 4×100 m freestyle relay (swam in heats only)
Leah Neale	AUS	SWM	2016—2020	1–0–1 2017 Budapest SWI bronze: 4×200 m freestyle relay (swam in heats only); 2019 Gwangju SWI gold: 4×200 m freestyle relay (swam in heats only)
Ryk Neethling	RSA	SWM	1996—2008	0–0–2 2005 Montréal SWI bronze: 100 m freestyle and 200 m freestyle
Jade Neilsen	AUS	SWM	2012	0–1–0 2011 Shanghai SWI silver: 4×200 m freestyle relay (swam in heats only)
Gábor Nemes	HUN	WPO	1992	0–0–1 1991 Perth WAP bronze
Stephanie Nesbitt	USA	SWA	2004	0–1–1 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team
Anthony Nesty	SUR	SWM	1984—2008	1–0–0 1991 Perth SWI gold: 100 m butterfly
Kiley Neushul	USA	WPO	2016	3–0–0 2015 Kazan WAP gold; 2017 Budapest WAP gold; 2019 Gwangju WAP gold
Robert Newbery	AUS	DIV	2000—2008	1–0–0 2003 Barcelona DIV gold: synchronized platform
Kotuku Ngawati	AUS	SWM	2016	0–0–1 2017 Budapest SWI bronze: 4×200 m freestyle relay
Benny Nielsen	DEN	SWM	1988	0–0–1 1986 Madrid SWI bronze: 200 m butterfly
Mie Ø. Nielsen	DEN	SWM	2012—2016	0–0–1 2015 Kazan SWI bronze: 100 m backstroke
Susanne Nielsson	DEN	SWM	1976—1980	0–0–1 1978 West Berlin SWI bronze: 200 m breaststroke
Slobodan Nikić	SRB SCG	WPO	2004—2016	3–1–1 2003 Barcelona WAP bronze (competed for Serbia and Montenegro); 2005 Montréal WAP gold (competed for Serbia and Montenegro); 2009 Rome WAP gold (competed for Serbia); 2011 Shanghai WAP silver (competed for Serbia); 2015 Kazan WAP gold (competed for Serbia)
Ning Zetao	CHN	SWM	2016	1–0–0 2015 Kazan SWI gold: 100 m freestyle
Peter Nocke	FRG	SWM	1976	1–2–1 1973 Belgrade SWI bronze: 4×200 m freestyle relay; 1975 Cali SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay and 4×100 m medley relay
Kathleen Nord	GDR	SWM	1988	2–1–1 1982 Guayaquil SWI gold: 4×100 m freestyle relay (swam in heats only), silver: 400 m medley; 1986 Madrid SWI gold: 400 m medley, bronze: 200 m medley
Justin Norris	AUS	SWM	2000—2004	0–0–1 2001 Fukuoka SWI bronze: 200 m medley
Andrea Nott	USA	SWA	2008	0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination
Olga Novokshchenova	RUS	SWA	1996—2004	1–0–0 1998 Perth SYN gold: team
Petra Nows	FRG	SWM	1972	0–0–1 1973 Belgrade SWI bronze: 4×100 m medley relay
Georgios Ntoskas	GRE	WPO	2008	0–0–1 2005 Montréal WAP bronze
Andrea Nugent	CAN	SWM	1988—1992	0–0–0 1991 Perth silver: 4×50 m freestyle relay (demonstration event)
Lacey Nymeyer	USA	SWM	2008	1–4–1 2005 Montréal SWI silver: 4×100 m medley relay (swam in heats only), bronze: 4×100 m freestyle relay; 2007 Melbourne SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay and 4×100 m medley relay; 2009 Roma SWI silver: 4×200 m freestyle relay
Stefan Nystrand	SWE	SWM	2000—2012	0–0–1 2007 Melbourne SWI bronze: 50 m freestyle
Mike O'Brien	USA	SWM	1984	0–0–1 1986 Madrid SWI bronze: 4×200 m freestyle relay (swam in heats only)
Siobhan-Marie O'Connor	GBR	SWM	2012—2016	1–0–1 2015 Kazan SWI gold: 4×100 m medley mixed relay, bronze: 200 m medley
Turlough O'Hare	CAN	SWM	1988—1992	0–0–0 1991 Perth silver: 4×50 m freestyle relay (swam in heats only) (demonstration event)
Susie O'Neill	AUS	IOC/SWM	1992—2005	1–2–4 1991 Perth SWI silver: 4×100 m medley relay; 1994 Roma SWI bronze: 100 m butterfly and 200 m butterfly; 1998 Perth SWI gold: 200 m butterfly, silver: 4×100 m medley relay, bronze: 4×100 m freestyle relay and 4×200 m freestyle relay
Mo O'Toole	USA	WPO	2000	0–0–2 1986 Madrid WAP bronze; 1991 Perth WAP bronze
Swann Oberson	SUI	OWS	2008—2012	1–0–0 2011 Shanghai SWI gold: 5 km open water
Paulo Obradović	CRO	WPO	2012—2020	0–1–3 2009 Rome WAP bronze; 2011 Shanghai WAP bronze; 2013 Barcelona WAP bronze; 2015 Kazan WAP silver
Werner Obschernikat	FRG	WPO	1976—1988	0–0–1 1982 Guayaquil WAP bronze
Miki Oca	ESP	Coach/WPO	1992—2020	0–2–0 1991 Perth WAP silver; 1994 Rome WAP silver
Jahir Ocampo	MEX	DIV	2016	0–0–1 2013 Barcelona DIV bronze: synchronized springboard
Alexander Dale Oen	NOR	SWM	2004—2008	1–0–0 2011 Shanghai SWI gold: 100 m breaststroke
Johannes Oesterling	GER	SWM	2004	0–0–1 2003 Barcelona SWI bronze: 4×200 m freestyle relay
Aleksandr Ogorodnikov	RUS EUN	WPO	1992	0–0–1 1994 Rome WAP bronze (competed for Russia)
Poliana Okimoto	BRA	OWS	2008—2016	1–1–2 2009 Roma SWI bronze: 5 km open water; 2013 Barcelona SWI gold: 10 km open water, silver: 5 km open water, bronze: 5 km open water team
Fumiko Okuno	JPN	SWA	1992	0–2–2 1991 Perth SYN bronze: team; 1994 Roma SYN silver: solo and duet, bronze: team
Anna Olasz	HUN	OWS/SWM	2010—2020	0–1–0 2015 Kazan SWI silver: 25 km open water
Penny Oleksiak	CAN	SWM	2016—2020	0–0–5 2017 Budapest SWI bronze: 4×100 m freestyle mixed relay and 4×100 m medley mixed relay; 2019 Gwangju SWI bronze: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay
Marc-Antoine Olivier	FRA	OWS	2016—2020	2–1–1 2017 Budapest SWI gold: 5 km open water and 4×1.25 km open water relay, bronze: 10 km open water; 2019 Gwangju SWI silver: 10 km open water
Jon Olsen	USA	SWM	1992—1996	3–0–0 1994 Roma SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only); 1998 Perth SWI gold: 4×100 m freestyle relay
Yevgeniya Olshevskaya	RUS	DIV	2000	0–1–1 2001 Fukuoka DIV silver: synchronized platform; 2003 Barcelona DIV bronze: synchronized platform
Kano Omata	JPN	SWA	2016	0–0–4 2015 Kazan SYN bronze: team Technical and team Free Routine Combination; 2017 Budapest SYN bronze: team Technical and team Free Routine Combination
Junko Onishi	JPN	SWM	2000—2004	0–0–1 2001 Fukuoka SWI bronze: 100 m butterfly
Marjan op den Velde	NED	WPO	2000	1–1–0 1991 Perth WAP gold; 1998 Perth WAP silver
Craig Oppel	USA	SWM	1988	1–0–0 1986 Madrid SWI gold: 4×100 m medley relay (swam in heats only)
Annabelle Orme	USA	SWA	2008	0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination
Louise Ørnstedt	DEN	SWM	2000—2004	0–1–0 2003 Barcelona SWI silver: 100 m backstroke
Marco Orsi	ITA	SWM	2012—2016	0–0–1 2015 Kazan SWI bronze: 4×100 m freestyle relay
Bea Ortiz	ESP	WPO	2016—2020	0–2–0 2017 Budapest WAP silver; 2019 Gwangju WAP silver
Mati Ortiz	ESP	WPO	2012—2016	1–1–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver
Stephanie Ortwig	FRG	SWM	1988	1–0–0 1991 Perth SWI gold: 4×200 m freestyle relay (competed for Germany)
Leonid Osipov	RUS URS	WPO	1964—1972	0–1–0 1973 Belgrade WAP silver
Farida Osman	EGY	SWM	2012—2020	0–0–2 2017 Budapest SWI bronze: 50 m butterfly; 2019 Gwangju SWI bronze: 50 m butterfly
Rainer Osselmann	FRG	WPO	1984—1988	0–0–1 1982 Guayaquil WAP bronze
Simone Osygus	GER	SWM	1992—1996	0–2–0 1991 Perth SWI gold: 4×50 m freestyle relay (demonstration event), silver: 4×100 m freestyle relay and 4×100 m freestyle relay
Anne Ottenbrite	CAN	SWM	1984	0–1–1 1982 Guayaquil SWI silver: 100 m breaststroke, bronze: 200 m breaststroke
Jeanette Ottesen Gray	DEN	SWM	2004—2020	2–2–0 2011 Shanghai SWI gold: 100 m freestyle; 2013 Barcelona SWI gold: 50 m butterfly; 2015 Kazan SWI silver: 50 m butterfly and 100 m butterfly
Frank Otto	GER FRG	WPO	1984—1992	0–0–1 1982 Guayaquil WAP bronze (competed for West Germany)
Kristin Otto	GDR	SWM	1988	7–2–0 1982 Guayaquil SWI gold: 100 m backstroke, 4×100 m freestyle relay, and 4×100 m medley relay; 1986 Madrid SWI gold: 100 m freestyle, 200 m medley, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 50 m freestyle and 100 m butterfly
Yelena Ovchinnikova	RUS	SWA	2008	7–0–0 2001 Fukuoka SYN gold: team; 2003 Barcelona SYN gold: team; 2005 Montréal SYN gold: team and team Free Routine Combination; 2007 Melbourne SYN gold: team Technical, team Free, and team Free Routine Combination
Emily Overholt	CAN	SWM	2016	0–0–2 2015 Kazan SWI bronze: 400 m medley; 2019 Gwangju SWI bronze: 4×200 m freestyle relay
Elli Overton	AUS	SWM	1992—2000	0–0–1 1994 Roma SWI bronze: 200 m medley
Rommel Pacheco	MEX	DIV	2004—2020	0–2–1 2013 Barcelona DIV bronze: synchronized springboard; 2017 Budapest DIV silver: team; 2019 Gwangju DIV silver: 1 m springboard
Jake Packard	AUS	SWM	2016	0–1–0 2015 Kazan SWI silver: 4×100 m medley relay
Yuliya Pakhalina	RUS	DIV	2000—2008	3–3–3 1998 Perth DIV gold: 3 m springboard and synchronized springboard; 2001 Fukuoka DIV silver: synchronized springboard, bronze: 3 m springboard; 2003 Barcelona DIV silver: 3 m springboard and synchronized springboard; 2007 Melbourne DIV bronze: 1 m springboard; 2009 Roma DIV gold: 1 m springboard, bronze: synchronized springboard
Daniil Pakhomov	RUS	SWM	2016	0–0–1 2017 Budapest SWI bronze: 4×100 m medley relay (swam in heats only)
Kirk Palmer	AUS	SWM	2008	0–0–1 2009 Roma SWI bronze: 4×200 m freestyle relay (swam in heats only)
Kylie Palmer	AUS	SWM	2008—2012	0–3–0 2011 Shanghai SWI silver: 200 m freestyle and 4×200 m freestyle relay; 2013 Barcelona SWI silver: 4×200 m freestyle relay
Paul Palmer	GBR	SWM	1992—2000	0–0–2 1998 Perth SWI bronze: 400 m freestyle and 4×200 m freestyle relay
Gregorio Paltrinieri	ITA	OWS/SWM	2012—2020	3–2–3 2013 Barcelona SWI bronze: 1500 m freestyle; 2015 Kazan SWI gold: 1500 m freestyle, silver: 800 m freestyle; 2017 Budapest SWI gold: 1500 m freestyle, bronze: 800 m freestyle; 2019 Gwangju SWI gold: 800 m freestyle, silver: 4×1.25 km open water relay, bronze: 1500 m freestyle
Aleksey Panfili	KAZ RUS	WPO	1996—2012	0–0–1 2001 Fukuoka WAP bronze (competed for Russia)
Pang Jiaying	CHN	SWM	2004—2012	1–0–3 2003 Barcelona SWI bronze: 4×200 m freestyle relay; 2005 Montréal SWI bronze: 4×200 m freestyle relay; 2009 Roma SWI gold: 4×200 m freestyle relay; 2011 Shanghai SWI bronze: 4×200 m freestyle relay
Roberto Pangaro	ITA	SWM	1972—1976	0–0–1 1975 Cali SWI bronze: 4×100 m freestyle relay
Nikolay Pankin	RUS URS	SWM	1968—1976	0–0–1 1975 Cali SWI bronze: 200 m breaststroke
Denis Pankratov	RUS EUN	SWM	1992—2000	1–2–0 1994 Roma SWI gold: 200 m butterfly; silver: 4×200 m freestyle relay and 4×100 m medley relay (competed for Russia)
Yekaterina Pantyulina-Lisunova	RUS	WPO	2008—2016	0–0–3 2007 Melbourne WAP bronze (competed as Yekaterina Pantyulina); 2009 Rome WAP bronze (competed as Yekaterina Pantyulina); 2011 Shanghai WAP bronze (competed as Yekaterina Lisunova)
Jenny Pareja	ESP	WPO	2012	1–0–0 2013 Barcelona WAP gold
Eddie Parenti	CAN	SWM	1992—1996	0–0–0 1991 Perth silver: 4×50 m freestyle relay (demonstration event)
Park Tae-Hwan	KOR	SWM	2004—2016	2–0–1 2007 Melbourne SWI gold: 400 m freestyle, bronze: 200 m freestyle; 2011 Shanghai SWI gold: 400 m freestyle
David Parker	GBR	SWM	1976	0–0–1 1975 Cali SWI bronze: 1500 m freestyle
Georgina Parkes	AUS	SWM	1980—1984	0–1–0 1982 Guayaquil SWI silver: 200 m backstroke
Vjekoslav Pasković	MNE	WPO	2008—2016	0–1–0 2013 Barcelona WAP silver
Tomislav Paškvalin	CRO YUG	WPO	1984—1988	1–0–0 1986 Madrid WAP gold
Giacomo Pastorino	ITA	WPO	2012	1–0–0 2011 Shanghai WAP gold
Aleksandra Patskevich	ROC RUS	SWA	2012—2020	13–0–0 2009 Roma SYN gold: team Technical and team Free; 2011 Shanghai SYN gold: team Technical, team Free, and team Free Routine Combination; 2013 Barcelona SYN gold: team Technical, team Free, and team Free Routine Combination; 2015 Kazan SYN gold: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN gold: duet Technical and duet Free
Cassie Patten	GBR	OWS/SWM	2008	0–1–0 2007 Melbourne SWI silver: 10 km open water
Josip Pavić	CRO	WPO	2008—2016	1–1–3 2007 Melbourne WAP gold; 2009 Rome WAP bronze; 2011 Shanghai WAP bronze; 2013 Barcelona WAP bronze; 2015 Kazan WAP silver
Jordi Payá	ESP	WPO	1988—1996	0–1–0 1994 Rome WAP silver
Keri-Anne Payne	GBR	OWS/SWM	2008—2016	2–0–0 2009 Roma SWI gold: 10 km open water; 2011 Shanghai SWI gold: 10 km open water
Nicolle Payne	USA	WPO	2000	1–0–0 2003 Barcelona WAP gold
Todd Pearson	AUS	SWM	2000—2004	2–0–0 2001 Fukuoka SWI gold: 4×100 m freestyle relay and 4×200 m freestyle relay (swam in heats only)
Adam Peaty	GBR	SWM	2016—2020	8–1–1 2015 Kazan SWI gold: 50 m breaststroke, 100 m breaststroke, and 4×100 m medley mixed relay; 2017 Budapest SWI gold: 50 m breaststroke and 100 m breaststroke, silver: 4×100 m medley relay; 2019 Gwangju SWI gold: 50 m breaststroke, 100 m breaststroke, and 4×100 m medley relay, bronze: 4×100 m medley mixed relay
Jacob Pebley	USA	SWM	2016	0–0–1 2017 Budapest SWI bronze: 200 m backstroke
Jana Pechanová	CZE	OWS/SWM	2004—2016	0–1–0 2003 Barcelona SWI silver: 5 km open water
Rikke Møller Pedersen	DEN	SWM	2012—2016	0–1–1 2013 Barcelona SWI silver: 200 m breaststroke; 2015 Kazan SWI bronze: 200 m breaststroke
Sergio Pedrerol	ESP	WPO	1992—2004	2–1–0 1994 Rome WAP silver; 1998 Perth WAP gold; 2001 Fukuoka WAP gold
Aaron Peirsol	USA	SWM	2000—2008	10–2–0 2001 Fukuoka SWI gold: 200 m backstroke; 2003 Barcelona SWI gold: 100 m backstroke, 200 m backstroke, and 4×100 m medley relay; silver: 4×200 m freestyle relay; 2005 Montréal SWI gold: 100 m backstroke, 200 m backstroke, and 4×100 m medley relay; 2007 Melbourne SWI gold: 100 m backstroke, silver: 200 m backstroke; 2009 Roma SWI gold: 200 m backstroke and 4×100 m medley relay
Anikó Pelle	HUN ITA	WPO	2004—2012	1–1–0 2001 Fukuoka WAP silver (competed for Hungary); 2005 Montréal WAP gold (competed for Hungary)
Federica Pellegrini	ITA	IOC/SWM	2004—2021	6–4–1 2005 Montréal SWI silver: 200 m freestyle; 2007 Melbourne SWI bronze: 200 m freestyle; 2009 Roma SWI gold: 200 m freestyle and 400 m freestyle; 2011 Shanghai SWI gold: 200 m freestyle and 400 m freestyle; 2013 Barcelona SWI silver: 200 m freestyle; 2015 Kazan SWI silver: 200 m freestyle and 4×200 m freestyle relay; 2017 Budapest SWI gold: 200 m freestyle; 2019 Gwangju SWI gold: 200 m freestyle
Annie Pelletier	CAN	DIV	1996	0–0–1 1994 Roma DIV bronze: 1 m springboard
Matteo Pelliciari	ITA	SWM	2000—2004	0–1–0 2001 Fukuoka SWI silver: 4×200 m freestyle relay
Pili Peña	ESP	WPO	2012—2020	1–2–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver; 2019 Gwangju WAP silver
Peng Bo	CHN	DIV	2004	1–1–0 2001 Fukuoka DIV gold: synchronized springboard; 2003 Barcelona DIV silver: 3 m springboard
Jill Penner	USA	SWA	2008	0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination
Thiago Pereira	BRA	SWM	2004—2016	0–1–2 2013 Barcelona SWI bronze: 200 m medley and 400 m medley; 2015 Kazan SWI silver: 200 m medley
Giacomo Perez-Dortona	FRA	SWM	2012	1–0–1 2013 Barcelona SWI gold: 4×100 m medley relay; 2015 Kazan SWI bronze: 4×100 m medley relay
Amaurys Perez	ITA	WPO	2012	1–0–0 2011 Shanghai WAP gold
Iván Pérez	CUB ESP	WPO	1992—2012	2–1–1 1998 Perth WAP gold (competed for Spain); 2001 Fukuoka WAP gold (competed for Spain); 2007 Melbourne WAP bronze (competed for Spain); 2009 Rome WAP silver (competed for Spain)
Kieren Perkins	AUS	SWM	1992—2000	2–1–0 1991 Perth SWI silver: 1500 m freestyle; 1994 Roma SWI gold: 400 m freestyle and 1500 m freestyle
Felipe Perrone	BRA ESP	WPO	2008—2020	0–2–1 2007 Melbourne WAP bronze (competed for Spain); 2009 Rome WAP silver (competed for Spain); 2019 Gwangju WAP silver (competed for Spain)
Kiko Perrone	ESP	WPO	2008	0–0–1 2007 Melbourne WAP bronze
Mariangela Perrupato	ITA	SWA	2012—2016	0–1–1 2015 Kazan SYN bronze: duet Free (mixed); 2017 Budapest SYN silver: duet Free (mixed)
Imre Péter	HUN	WPO	1992	0–0–1 1991 Perth WAP bronze
Stefan Peter	FRG	SWM	1984	0–0–1 1982 Guayaquil SWI bronze: 4×100 m medley relay
Antonio Petković	CRO	WPO	2016	0–1–0 2015 Kazan WAP silver
Zsolt Petőváry	HUN	WPO	1988—1992	0–0–1 1991 Perth WAP bronze
Heather Petri	USA	WPO	2000—2012	3–1–0 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP gold; 2009 Rome WAP gold
Borut Petrič	SLO YUG	SWM	1976—1984	0–1–0 1978 West Berlin SWI silver: 1500 m freestyle
Darjan Petrič	SLO YUG	SWM	1980—1988	0–0–1 1982 Guayaquil SWI bronze: 1500 m freestyle
Tatyana Petrova	RUS	WPO	2000—2004	0–0–1 2003 Barcelona WAP bronze
Antonio Petrović	MNE	WPO	2012—2016	0–1–0 2013 Barcelona WAP silver
Zoran Petrović	SRB YUG	WPO	1984	1–0–0 1986 Madrid WAP gold
Kim Peyton	USA	SWM	1972—1976	0–1–0 1973 Belgrade SWI silver: 4×100 m freestyle relay
Stefan Pfeiffer	GER FRG	SWM	1984—1992	1–2–1 1986 Madrid SWI silver: 4×200 m freestyle relay (swam in heats only) (competed for West Germany); 1991 Perth SWI gold: 4×200 m freestyle relay, silver: 400 m freestyle, bronze: 1500 m freestyle (competed for Germany)
Frank Pfütze	GDR	SWM	1976—1980	0–0–1 1975 Cali SWI bronze: 400 m freestyle
Michael Phelps	USA	SWM	2000—2016	26–6–1 2001 Fukuoka SWI gold: 200 m butterfly; 2003 Barcelona SWI gold: 200 m butterfly, 200 m medley, 400 m medley, and 4×100 m medley relay (swam in heats only), silver: 100 m butterfly and 4×200 m freestyle relay; 2005 Montréal SWI gold: 200 m freestyle, 200 m medley, 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay (swam in heats only), silver: 100 m butterfly; 2007 Melbourne SWI gold: 200 m freestyle, gold: 100 m butterfly, 200 m butterfly, 200 m medley, 400 m medley, 4×100 m freestyle relay, and 4×200 m freestyle relay; 2009 Roma SWI gold: 100 m butterfly, 200 m butterfly, 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay, silver: 200 m freestyle; 2011 Shanghai SWI gold: 100 m butterfly, 200 m butterfly, 4×200 m freestyle relay, and 4×100 m medley relay, silver: 200 m freestyle and 200 m medley, bronze: 4×100 m freestyle relay
Erin Phenix	USA	SWM	2000	0–2–0 2001 Fukuoka SWI silver: 4×100 m freestyle relay and 4×100 m medley relay
Brian Phillips	CAN	SWM	1972	0–0–1 1973 Belgrade SWI bronze: 4×100 m medley relay
Karen Pickering	GBR	SWM	1992—2004	1–1–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay
Sydney Pickrem	CAN	SWM	2016—2020	0–0–4 2017 Budapest SWI bronze: 400 m medley; 2019 Gwangju SWI bronze: 200 m breaststroke, 200 m medley, and 4×100 m medley relay
Josep Picó	ESP	WPO	1992	0–2–0 1991 Perth WAP silver; 1994 Rome WAP silver
Blake Pieroni	USA	SWM	2016—2020	4–0–2 2017 Budapest SWI gold: 4×100 m freestyle relay and 4×100 m freestyle mixed relay (swam in heats only), bronze: 4×200 m freestyle relay; 2019 Gwangju SWI gold: 4×100 m freestyle relay and 4×100 m freestyle mixed relay (swam in heats only), bronze: 4×200 m freestyle relay
Annamay Pierse	CAN	SWM	2008	0–1–0 2009 Roma SWI silver: 200 m breaststroke
Duško Pijetlović	SRB	WPO	2008—2020	2–1–1 2009 Rome WAP gold; 2011 Shanghai WAP silver; 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Gojko Pijetlović	SRB	WPO	2012—2020	2–1–1 2009 Rome WAP gold; 2011 Shanghai WAP silver; 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Denis Pimankov	RUS	SWM	1996—2004	1–1–1 1998 Perth SWI bronze: 4×100 m freestyle relay; 2003 Barcelona SWI gold: 4×100 m freestyle relay, silver: 4×100 m medley relay (swam in heats only)
Adam Pine	AUS	SWM	2000—2008	2–1–0 1998 Perth SWI silver: 4×100 m freestyle relay; 2001 Fukuoka SWI gold: 4×100 m freestyle relay (swam in heats only) and 4×100 m medley relay (swam in heats only)
Svilen Piralkov	ESP	WPO	2008	0–0–1 2007 Melbourne WAP bronze
Andrea Pisano	ITA	WPO	1984—1988	0–1–0 1986 Madrid WAP silver
Fernando Platas	MEX	DIV	1992—2004	0–2–0 2001 Fukuoka DIV silver: synchronized springboard and synchronized platform
Catherine Plewinski	FRA	SWM	1988—1992	0–2–1 1991 Perth SWI silver: 50 m freestyle and 100 m freestyle, bronze: 100 m butterfly
Karla Plugge	NED	WPO	2000	1–2–0 1991 WAP Perth gold (competed as Karla van der Boon); 1994 Rome WAP silver (competed as Karla van der Boon); 1998 Perth WAP silver (competed as Karla van der Boon)
David Plummer	USA	SWM	2016	1–1–0 2011 Shanghai SWI gold: 4×100 m medley relay (swam in heats only); 2013 Barcelona SWI silver: 100 m backstroke
Maxim Podoprigora	AUT	SWM	2000—2008	0–1–0 2001 Fukuoka SWI silver: 200 m breaststroke
Sarah Poewe	GER RSA	SWM	2000—2012	0–0–2 2005 Montréal SWI bronze: 4×100 m medley relay (competed for Germany); 2009 Roma SWI bronze: 4×100 m medley relay (competed for Germany)
Anne Poleska	GER	SWM	2000—2008	0–1–0 2005 Montréal SWI silver: 200 m breaststroke
Damir Polić	CRO YUG	WPO	1976—1980	0–0–1 1978 West Berlin WAP bronze
Mikhail Polishchuk	RUS	SWM	2008—2012	0–1–0 2009 Roma SWI silver: 4×200 m freestyle relay
Claudia Poll	CRC	SWM	1996—2004	1–1–2 1994 Roma SWI bronze: 200 m freestyle and 400 m freestyle; 1998 Perth SWI gold: 200 m freestyle; 2001 Fukuoka SWI silver: 400 m freestyle
Sylvia Poll	CRC	SWM	1988—1992	0–0–0 1991 Perth silver: 50 m backstroke (demonstration event)
Andrea Pollack	GDR	SWM	1976—1980	0–2–1 1978 West Berlin SWI silver: 100 m butterfly and silver: 4×100 m medley relay, bronze: 200 m butterfly
Anatoly Polyakov	RUS	SWM	2000—2004	0–0–1 2001 Fukuoka SWI bronze: 200 m butterfly
Igor Polyansky	RUS URS	SWM	1988	2–0–1 1986 Madrid SWI gold: 100 m backstroke and 200 m backstroke, bronze: 4×100 m medley relay
Francesca Pomeri	ITA	WPO	2016	0–0–1 2015 Kazan WAP bronze
Amedeo Pomilio	ITA	WPO	1992—2000	1–0–0 1994 Rome WAP gold
Laia Pons	ESP	SWA	2012	0–1–0 2013 Barcelona SYN silver: team Free Routine Combination
Kyriakos Pontikeas	GRE	WPO	2016	0–0–1 2015 Kazan WAP bronze
Victoria Poon	CAN	SWM	2008—2012	0–0–1 2015 Kazan SWI bronze: 4×100 m freestyle mixed relay (swam in heats only)
Alena Popchanka	BLR FRA	SWM	1996—2008	1–0–1 2003 Barcelona SWI gold: 200 m freestyle (competed for Belarus); 2007 Melbourne SWI bronze: 4×200 m freestyle relay (competed for France)
Aleksandr Popkov	RUS	SWM	2016	0–0–1 2017 Budapest SWI bronze: 4×100 m medley relay
Aleksandr Popov	RUS EUN	IOC/SWM	1992—2018	6–4–1 1994 Roma SWI gold: 50 m freestyle and 100 m freestyle, silver: 4×100 m freestyle relay and 4×100 m medley relay (competed for Russia); 1998 Perth SWI gold: 100 m freestyle, silver: 50 m freestyle, bronze: 4×100 m freestyle relay (competed for Russia); 2003 Barcelona SWI gold: 50 m freestyle, 100 m freestyle, and 4×100 m freestyle relay, silver: 4×100 m medley relay (competed for Russia)
Veronika Popova-Andrusenko	ROC RUS	SWM	2012—2020	0–1–1 2013 Barcelona SWI bronze: 4×100 m medley relay; 2017 Budapest SWI silver: 4×100 m medley relay
Andrija Popović	MNE YUG	WPO	1984	1–0–0 1986 Madrid WAP gold
Aleksandr Portnov	BLR URS	DIV	1980—1988	0–0–1 1982 Guayaquil DIV bronze: 3 m springboard
Franco Porzio	ITA	WPO	1988—1992	1–1–0 1986 Madrid WAP silver; 1994 Rome WAP gold
Giuseppe Porzio	ITA	WPO	1992	1–0–0 1994 Rome WAP gold
Renco Posinković	CRO YUG	WPO	1988	1–0–0 1991 Perth WAP gold
Francesco Postiglione	ITA	SWM/WPO	1992—2004	0–1–0 2003 Barcelona WAP silver
Stefano Postiglione	ITA	WPO	1984—1988	0–1–0 1986 Madrid WAP silver
Christian Poswiat	GDR GER	SWM	1988—1992	0–0–1 1991 Perth SWI bronze: 50 m breaststroke (demonstration event) and 4×100 m medley relay (competed for Germany)
Camelia Potec	ROU	SWM	2000—2012	0–0–2 2001 Fukuoka SWI bronze: 200 m freestyle; 2009 Roma SWI bronze: 1500 m freestyle
Cynthia Potter-McIngvale	USA	DIV	1972—1976	0–1–0 1978 West Berlin DIV silver: 3 m springboard (competed as Cynthia Potter)
Annette Poulsen	DEN	SWM	1988—1992	0–0–1 1991 Perth SWI bronze: 4×200 m freestyle relay
Svetlana Pozdeyeva	RUS	SWM	1996	0–0–1 1994 Roma SWI bronze: 4×100 m medley relay
Anastasiya Pozdnyakova	RUS	DIV	2008—2012	0–0–1 2009 Roma DIV bronze: synchronized springboard
Ricardo Prado	BRA	SWM	1980—1984	1–0–0 1982 Guayaquil SWI gold: 400 m medley
Vladimir Predkin	RUS	SWM	1996	0–2–0 1994 Roma SWI silver: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
Christian Presciutti	ITA	WPO	2012—2016	1–0–0 2011 Shanghai WAP gold
Petra Priemer	GDR	SWM	1976	0–1–0 1978 West Berlin SWI silver: 4×100 m freestyle relay
Gennady Prigoda	RUS URS EUN	SWM	1988—1992	0–1–2 1986 Madrid SWI silver: 4×100 m freestyle relay (competed for the Soviet Union); 1991 Perth SWI bronze: 50 m freestyle and 4×100 m freestyle relay (competed for the Soviet Union)
Kirill Prigoda	ROC RUS	SWM	2016—2020	0–0–3 2017 Budapest SWI bronze: 100 m breaststroke and bronze: 4×100 m medley relay; 2019 Gwangju SWI bronze: 4×100 m medley relay
Yury Prilukov	RUS	SWM	2004—2008	0–2–2 2005 Montréal SWI silver: 400 m freestyle, bronze: 800 m freestyle; 2007 Melbourne SWI silver: 1500 m freestyle, bronze: 400 m freestyle
Ágnes Primász	HUN	WPO	2004—2008	0–1–0 2001 Fukuoka WAP silver
Andrija Prlainović	SRB	WPO	2008—2020	2–1–1 2009 Rome WAP gold; 2011 Shanghai WAP silver; 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Kim Probst	USA	SWA	2008	0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination
Yekaterina Prokofyeva	ROC RUS	WPO	2008—2020	0–0–3 2009 Rome WAP bronze; 2011 Shanghai WAP bronze; 2017 Budapest WAP bronze
Yelena Prokofyeva	RUS	SWA	2016	6–0–0 2013 Barcelona SYN gold: team Technical, team Free, and team Free Routine Combination; 2015 Kazan SYN gold: team Technical, team Free, and team Free Routine Combination
Yuliya Prokopchuk	UKR	DIV	2008—2016	0–1–1 2013 Barcelona DIV bronze: platform; 2015 Kazan DIV silver: team
Yevgeniya Protsenko	RUS	WPO	2008	0–0–1 2009 Rome WAP bronze
Ben Proud	GBR	SWM	2016—2020	1–0–1 2017 Budapest SWI gold: 50 m butterfly, bronze: 50 m freestyle
Berit Puggaard	DEN	SWM	1992—1996	0–0–1 1991 Perth SWI bronze: 4×200 m freestyle relay
Joona Puhakka	FIN	DIV	2000—2008	0–0–1 2003 Barcelona DIV bronze: 1 m springboard
Dean Pullar	AUS	DIV	2000	0–0–1 1998 Perth DIV bronze: synchronized springboard
Tina Punzel	GER	DIV	2016—2020	0–0–1 2019 Gwangju DIV bronze: synchronized springboard (mixed)
Vlad Pyshnenko	RUS EUN	SWM	1992—1996	0–2–0 1994 Roma SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay (competed for Russia)
Roger Pyttel	GDR	SWM	1972—1980	0–3–3 1973 Belgrade SWI silver: 4×100 m medley relay, bronze: 200 m freestyle and 4×100 m freestyle relay; 1975 Cali SWI silver: 100 m butterfly and 200 m butterfly; 1978 West Berlin SWI bronze: 200 m butterfly
Qi Hui	CHN	SWM	2000—2008	0–1–2 2001 Fukuoka SWI silver: 200 m breaststroke, bronze: 200 m medley; 2003 Barcelona SWI bronze: 200 m breaststroke
Qian Hong	CHN	SWM	1988—1992	1–0–0 1991 Perth SWI gold: 50 m butterfly (demonstration event) and 100 m butterfly
Esther Qin	AUS	DIV	2016—2020	0–0–1 2015 Kazan DIV bronze: synchronized springboard
Qin Kai	CHN	DIV	2008—2016	7–0–0 2007 Melbourne DIV gold: 3 m springboard and synchronized springboard; 2009 Roma DIV gold: 1 m springboard and synchronized springboard; 2011 Shanghai DIV gold: synchronized springboard; 2013 Barcelona DIV gold: synchronized springboard; 2015 Kazan DIV gold: synchronized springboard
Qiu Bo	CHN	DIV	2010—2016	4–1–0 2009 Roma DIV silver: platform; 2011 Shanghai DIV gold: platform and synchronized platform; 2013 Barcelona DIV gold: platform; 2015 Kazan DIV gold: platform
Qiu Yuhan	CHN	SWM	2012—2014	1–0–1 2015 Kazan SWI gold: 4×100 m medley relay (swam in heats only), bronze: 4×200 m freestyle relay
Qu Yun	CHN	SWM	1996	1–2–0 1994 Roma SWI gold: 4×100 m medley relay (swam in heats only), silver: 100 m butterfly and 200 m butterfly
Simona Quadarella	ITA	SWM	2014—2020	1–1–1 2017 Budapest SWI bronze: 1500 m freestyle; 2019 Gwangju SWI gold: 1500 m freestyle, silver: 800 m freestyle
Kristine Quance	USA	SWM	1996	0–1–1 1994 Roma SWI silver: 4×100 m medley relay, bronze: 400 m medley
Megan Quann-Jendrick	USA	SWM	2000—2008	0–2–0 2001 Fukuoka SWI silver: 4×100 m medley relay (competed as Megan Quann); 2007 Melbourne SWI silver: 200 m breaststroke (competed as Megan Jendrick)
Elisa Queirolo	ITA	WPO	2016	0–0–1 2015 Kazan WAP bronze
Carla Quint	NED	WPO	2000	0–1–0 1998 Perth WAP silver
Wendy Quirk	CAN	SWM	1976	0–0–2 1978 West Berlin SWI bronze: 100 m butterfly and 4×100 m freestyle relay
Per-Ola Quist	SWE	SWM	1980	0–0–1 1978 West Berlin SWI bronze: 4×100 m freestyle relay
Nikola Rađen	SRB	WPO	2008—2012	1–1–0 2009 Rome WAP gold; 2011 Shanghai WAP silver
Goran Rađenović	MNE YUG	WPO	1988	1–0–0 1991 Perth WAP gold
Zdravko Radić	MNE	WPO	2008—2016	1–1–0 2005 Montréal WAP gold (competed for Serbia and Montenegro); 2013 Barcelona WAP silver (competed for Montenegro)
Federica Radicchi	ITA	WPO	2012—2016	0–0–1 2015 Kazan WAP bronze
Paolo Ragosa	ITA	WPO	1980	1–0–0 1978 West Berlin WAP gold
Cinzia Ragusa	ITA	WPO	2004—2008	0–1–0 2003 Barcelona WAP silver
Sava Ranđelović	SRB	WPO	2016—2020	1–0–1 2015 Kazan WAP gold; 2017 Budapest WAP bronze
Kristóf Rasovszky	HUN	OWS/SWM	2016—2020	1–0–0 2019 Gwangju SWI gold: 5 km open water
Bogdan Rath	ITA ROU	WPO	1996—2004	0–1–0 2003 Barcelona WAP silver (competed for Italy)
Jamie Rauch	USA	SWM	2000	0–0–1 2001 Fukuoka SWI bronze: 4×200 m freestyle relay (swam in heats only)
Cari Read	CAN	SWA	1996	0–2–0 1991 Perth SYN silver: team; 1994 Roma SYN silver: team
Shayne Reese	AUS	SWM	2004—2008	2–2–1 2005 Montréal SWI gold: 4×100 m freestyle relay, silver: 4×200 m freestyle relay; 2007 Melbourne SWI gold: 4×100 m freestyle relay; 2009 Roma SWI silver: 4×100 m medley relay (swam in heats only), bronze: 4×100 m freestyle relay
Christian Reichert	GER	OWS	2016	2–0–0 2013 Barcelona SWI gold: 5 km open water team; 2015 Kazan SWI gold: 5 km open water team
Grace Reid	GBR	DIV	2016—2020	0–1–0 2017 Budapest DIV silver: synchronized springboard (mixed)
Desi Reijers	NED	SWM	1984	0–0–1 1982 Guayaquil SWI bronze: 4×100 m freestyle relay (swam in heats only)
Brittany Reimer	CAN	SWM	2004	0–1–1 2005 Montréal SWI silver: 800 m freestyle, bronze: 1500 m freestyle
Heidi Reineck	FRG	SWM	1968—1972	0–0–1 1973 Belgrade SWI bronze: 4×100 m freestyle relay
Andrey Rekechinsky	RUS	WPO	2004	0–0–1 2001 Fukuoka WAP bronze
Ren Qian	CHN	DIV	2016	2–1–1 2015 Kazan DIV silver: platform; 2017 Budapest DIV gold: synchronized platform and synchronized platform (mixed), bronze: platform
Robbie Renwick	GBR	SWM	2008—2016	1–0–0 2015 Kazan SWI gold: 4×200 m freestyle relay
Georgios Reppas	GRE	WPO	2000—2008	0–0–1 2005 Montréal WAP bronze
Kim Rhodenbaugh	USA	SWM	1984	0–2–0 1982 Guayaquil SWI silver: 100 m breaststroke and 4×100 m medley relay
Steph Rice	AUS	SWM	2008—2012	0–2–5 2007 Melbourne SWI bronze: 200 m medley; and 400 m medley; 2009 Roma SWI silver: 200 m medley and 4×100 m medley relay (swam in heats only), bronze: 400 m medley; 2011 Shanghai SWI bronze: 400 m medley and 4×100 m medley relay (swam in heats only)
Dirk Richter	GDR GER	SWM	1988—1992	2–2–2 1982 Guayaquil SWI gold: 100 m backstroke (competed for East Germany); 1986 Madrid SWI gold: 4×200 m freestyle relay, silver: 100 m backstroke, bronze: 4×100 m freestyle relay (competed for East Germany); 1991 Perth SWI gold: 50 m backstroke (demonstration event) and 4×50 m freestyle relay (demonstration event), silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay (competed for Germany)
Ulrike Richter	GDR	SWM	1976	4–0–1 1973 Belgrade SWI gold: 100 m backstroke and 4×100 m medley relay; 1975 Cali SWI gold: 100 m backstroke and 4×100 m medley relay, bronze: 200 m backstroke
Brenton Rickard	AUS	SWM	2008—2012	2–2–2 2007 Melbourne SWI gold: 4×100 m medley relay, silver: 200 m breaststroke, bronze: 100 m breaststroke; 2009 Roma SWI gold: 100 m breaststroke, bronze: 4×100 m medley relay; 2011 Shanghai SWI silver: 4×100 m medley relay
Rachel Riddell	CAN	WPO	2004	0–1–1 2005 Montréal WAP bronze; 2009 Rome WAP silver
Vincent Riendeau	CAN	DIV	2016—2020	0–1–0 2015 Kazan DIV silver: synchronized platform (mixed)
Flavia Rigamonti	SUI	SWM	2000—2008	0–3–0 2001 Fukuoka SWI silver: 1500 m freestyle; 2005 Montréal SWI silver: 1500 m freestyle; 2007 Melbourne SWI silver: 1500 m freestyle
Sam Riley	AUS	SWM	1992—1996	2–1–0 1994 Roma SWI gold: 100 m breaststroke and 200 m breaststroke; 1998 Perth SWI silver: 4×100 m medley relay (swam in heats only)
Pandelela Rinong	MAS	DIV	2008—2020	0–1–4 2009 Roma DIV bronze: synchronized platform; 2013 Barcelona DIV bronze: synchronized platform; 2015 Kazan DIV bronze: platform; 2017 Budapest DIV bronze: synchronized platform; 2019 Gwangju DIV silver: synchronized platform
Bec Rippon	AUS	WPO	2004—2008	0–1–0 2007 Melbourne WAP silver
Mel Rippon	AUS	WPO	2004—2012	0–1–0 2007 Melbourne WAP silver
Éva Risztov	HUN	OWS/SWM	2000—2016	0–3–0 2003 Barcelona SWI silver: 400 m freestyle, 200 m butterfly, and 400 m medley
James Roberts	AUS	SWM	2012—2016	1–1–0 2011 Shanghai SWI gold: 4×100 m freestyle relay (swam in heats only), silver: 4×100 m medley relay (swam in heats only)
Bruce Robertson	CAN	SWM	1972—1976	1–0–1 1973 Belgrade SWI gold: 100 m butterfly, bronze: 4×100 m medley relay
Christine Robinson	CAN	WPO	2004	0–1–1 2005 Montréal WAP bronze; 2009 Rome WAP silver
Peter Rocca	USA	SWM	1976	1–1–0 1978 West Berlin SWI gold: 4×100 m medley relay (swam in heats only), silver: 100 m backstroke
Irina Rodríguez	ESP	SWA	2004—2008	1–4–3 2003 Barcelona SYN silver: team Free Routine Combination; 2005 Montréal SYN bronze: team and team Free Routine Combination; 2007 Melbourne SYN silver: team Free, bronze: team Technical; 2009 Roma SYN gold: team Free Routine Combination, silver: team Technical and team Free
Joel Rodríguez	MEX	DIV	1996—2000	0–1–0 2001 Fukuoka DIV silver: synchronized springboard
Markus Rogan	AUT	SWM	2000—2012	0–2–1 2001 Fukuoka SWI silver: 200 m backstroke; 2005 Montréal SWI silver: 200 m backstroke; 2007 Melbourne SWI bronze: 200 m backstroke
Phil Rogers	AUS	SWM	1992—2000	2–0–0 1998 Perth SWI gold: 4×100 m medley relay; 2001 Fukuoka gold: 4×100 m medley relay (swam in heats only)
Peter Röhle	FRG	WPO	1976—1988	0–0–1 1982 Guayaquil WAP bronze
Zoran Roje	CRO YUG	WPO	1980—1984	0–0–1 1978 West Berlin WAP bronze
Jesús Miguel Rollán	ESP	WPO	1988—2004	2–2–0 1991 Perth WAP silver; 1994 Rome WAP silver; 1998 Perth WAP gold; 2001 Fukuoka WAP gold
Mykhailo Romanchuk	UKR	SWM	2014—2020	0–2–0 2017 Budapest SWI silver: 1500 m freestyle; 2019 Gwangju SWI silver: 1500 m freestyle
Vitaly Romanchuk	RUS URS	WPO	1976	1–1–0 1973 Belgrade WAP silver; 1975 Cali WAP gold
Svetlana Romashina	ROC RUS	SWA	2008—2020	21–0–0 2005 Montréal SYN gold: team and team Free Routine Combination; 2007 Melbourne SYN gold: team Technical, team Free, and team Free Routine Combination; 2009 Roma SYN gold: duet Technical, duet Free, and team Free; 2011 Shanghai SYN gold: duet Technical, duet Free, and team Free Routine Combination; 2013 Barcelona SYN gold: solo Technical, solo Free, duet Technical, and duet Free; 2015 Kazan SYN gold: solo Technical, duet Technical, and duet Free; 2019 Gwangju SYN gold: solo Free, duet Technical, and duet Free
Giaan Rooney	AUS	SWM	2000—2004	3–1–1 2001 Fukuoka SWI gold: 200 m freestyle; 2003 Barcelona SWI silver: 4×200 m freestyle relay (swam in heats only), bronze: 4×100 m medley relay; 2005 Montréal SWI gold: 50 m backstroke and 4×100 m medley relay (swam in heats only)
Gabrielle Rose	BRA USA	SWM	1996—2000	2–0–0 2003 Barcelona SWI gold: 4×100 m freestyle relay (swam in heats only) and 4×200 m freestyle relay (swam in heats only) (competed for the United States)
Massi Rosolino	ITA	SWM	1996—2008	1–3–1 1998 Perth SWI silver: 200 m freestyle; 2001 Fukuoka SWI gold: 200 m medley, silver: 4×200 m freestyle relay; 2003 Barcelona SWI bronze: 200 m medley; 2007 Melbourne SWI silver: 4×100 m freestyle relay
Reuben Ross	CAN	DIV	2008—2012	0–0–1 2009 Roma DIV bronze: synchronized springboard
Matthieu Rosset	FRA	DIV	2012—2020	1–0–0 2017 Budapest DIV gold: team
Keena Rothhammer	USA	SWM	1972	1–2–0 1973 Belgrade SWI gold: 200 m freestyle, silver: 400 m freestyle and 4×100 m freestyle relay (swam in heats only)
Sébastien Rouault	FRA	SWM	2008	0–1–0 2011 Shanghai SWI silver: 4×200 m freestyle relay (swam in heats only)
Antigoni Roumbesi	GRE	WPO	2004—2008	1–0–0 2011 Shanghai WAP gold
Jeff Rouse	USA	SWM	1992—1996	3–1–0 1991 Perth SWI gold: 100 m backstroke and 4×100 m medley relay; 1994 Roma SWI gold: 4×100 m medley relay, silver: 100 m backstroke
Michel Rousseau	FRA	SWM	1968—1976	0–1–0 1973 Belgrade SWI silver: 100 m freestyle
Sharon van Rouwendaal	NED	OWS/SWM	2012—2020	0–4–1 2011 Shanghai SWI bronze: 200 m backstroke; 2015 Kazan SWI silver: 400 m freestyle, 10 km open water, and 5 km open water team; 2017 Budapest SWI silver: 25 km open water
Jolanda de Rover	NED	SWM	1980—1988	0–0–1 1986 Madrid SWI bronze: 4×100 m medley relay
Pavlo Rozenberg	GER	DIV	2008	0–0–1 2011 Shanghai DIV bronze: 1 m springboard
Norbert Rózsa	HUN	SWM	1992—2000	3–1–3 1991 Perth SWI gold: 100 m breaststroke, silver: 200 m breaststroke; 1994 Roma SWI gold: 100 m breaststroke and 200 m breaststroke, bronze: 4×100 m medley relay; 1998 Perth SWI bronze: 200 m breaststroke and 4×100 m medley relay
Ruan Yi	CHN	SWM	2000	0–0–1 2001 Fukuoka SWI bronze: 4×100 m medley relay
Taylor Ruck	CAN	SWM	2016—2020	0–0–3 2019 Gwangju SWI bronze: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay (swam in heats only)
Ratko Rudić	BRA CRO SRB YUG	Coach/WPO	1972—2016	0–0–1 1973 Belgrade WAP bronze
Nils Rudolph	GER	SWM	1992	0–1–0 1991 Perth SWI gold: 4×50 m freestyle relay (demonstration event), silver: 4×100 m freestyle relay (swam in heats only)
Eduardo Rueda	MEX	DIV	2000	0–1–0 2001 Fukuoka DIV silver: synchronized platform
Simone Ruffini	ITA	OWS	2016	1–0–0 2015 Kazan SWI gold: 25 km open water
Tracie Ruiz-Conforto	USA	SWA	1984—1988	1–2–0 1982 Guayaquil SYN gold: solo, silver: duet and team (competed as Tracie Ruiz)
Kelly Rulon	USA	WPO	2004—2012	1–1–0 2005 Montréal WAP silver; 2009 Rome WAP gold
Cierra Runge	USA	SWM	2016	2–0–0 2015 Kazan SWI gold: 4×200 m freestyle relay (swam in heats only); 2017 Budapest SWI gold: 4×200 m freestyle relay (swam in heats only)
Thomas Rupprath	GER	SWM	2000—2008	1–3–0 2001 Fukuoka SWI silver: 50 m backstroke and 4×100 m medley relay; 2003 Barcelona SWI gold: 50 m backstroke; 2007 Melbourne SWI silver: 50 m backstroke
Lyubov Rusanova	RUS URS	SWM	1976	0–1–0 1973 Belgrade SWI silver: 100 m breaststroke
Sergey Rusin	RUS URS	SWM	1980	0–1–0 1978 West Berlin SWI silver: 4×200 m freestyle relay
Colin Russell	CAN	SWM	2008—2012	0–1–0 2005 Montréal SWI silver: 4×200 m freestyle relay
Keith Russell	USA	DIV	1968	0–1–1 1973 Belgrade DIV silver: platform, bronze: 3 m springboard
Sarah Ryan	AUS	SWM	1996—2004	1–1–1 1998 Perth SWI silver: 4×100 m medley relay (swam in heats only), bronze: 4×100 m freestyle relay; 2001 Fukuoka SWI gold: 4×100 m medley relay
Sean Ryan	USA	OWS	2016	1–0–0 2011 Shanghai SWI gold: 5 km open water team
Brian Ryckeman	BEL	OWS	2008—2012	0–1–0 2013 Barcelona SWI silver: 25 km open water
Yevgeny Rylov	ROC RUS	SWM	2014—2020	2–3–3 2015 Kazan SWI bronze: 200 m backstroke; 2017 Budapest SWI gold: 200 m backstroke, bronze: 4×100 m medley relay; 2019 Gwangju SWI gold: 200 m backstroke, silver: 50 m backstroke, 100 m backstroke, and 4×100 m freestyle relay, bronze: 4×100 m medley relay
Oleksandra Sabada	UKR	SWA	2016	0–0–3 2013 Barcelona SYN bronze: team Technical, team Free, and team Free Routine Combination
Kateryna Sadurska	UKR	SWA	2016	0–0–3 2013 Barcelona SYN bronze: team Technical, team Free, and team Free Routine Combination
Rich Saeger	USA	SWM	1984	2–0–0 1982 Guayaquil SWI gold: 4×200 m freestyle relay and 4×100 m freestyle relay (swam in heats only)
Jana Salat	CAN	WPO	2000—2004	0–0–2 2001 Fukuoka WAP bronze; 2005 Montréal WAP bronze
Yekaterina Salimova	RUS	WPO	2004	0–0–1 2003 Barcelona WAP bronze
Vladimir Salnikov	RUS URS	SWM	1976—1988	4–2–0 1978 West Berlin SWI gold: 400 m freestyle and 1500 m freestyle, silver: 4×200 m freestyle relay; 1982 Guayaquil SWI gold: 400 m freestyle and 1500 m freestyle; 1982 Guayaquil SWI silver: 4×200 m freestyle relay
Jamie Salter	GBR	SWM	1996—2000	0–0–1 1998 Perth SWI bronze: 4×200 m freestyle relay
Aleksandr Samsonov	RUS URS	SWM	1972	0–0–1 1975 Cali SWI bronze: 4×200 m freestyle relay
Daniela Samulski	GER	SWM	2000—2008	0–3–1 2007 Melbourne SWI silver: 4×200 m freestyle relay (swam in heats only); 2009 Roma SWI silver: 50 m backstroke and 4×100 m freestyle relay, bronze: 4×100 m medley relay
Germán Sánchez	MEX	DIV	2008—2016	0–1–0 2015 Kazan DIV silver: synchronized platform
Javier Sánchez	ESP	WPO	2000—2004	1–0–0 2001 Fukuoka WAP gold
Julián Sánchez	MEX	DIV	2012	0–0–1 2011 Shanghai DIV bronze: synchronized springboard
Laura Sánchez	MEX	DIV	2004—2012	0–0–1 2003 Barcelona DIV bronze: synchronized springboard
Ricardo Sánchez	ESP	WPO	1992	0–1–0 1991 Perth WAP silver
Kaitlin Sandeno	USA	SWM	2000—2004	1–0–3 2001 Fukuoka SWI bronze: 800 m freestyle and 200 m butterfly; 2005 Montréal SWI gold: 4×200 m freestyle relay; 2005 Montréal SWI bronze: 400 m medley
Summer Sanders	USA	SWM	1992	1–1–1 1991 Perth SWI gold: 200 m butterfly, silver: 200 m medley, bronze: 400 m medley
Sang Xue	CHN	DIV	2000	1–0–0 2001 Fukuoka DIV gold: synchronized platform
Jordi Sans	ESP	WPO	1984—2000	1–2–0 1991 Perth WAP silver; 1994 Rome WAP silver; 1998 Perth WAP gold
Stefanos-Petros Santa	GRE ROU	WPO	1996—2004	0–0–1 2005 Montréal WAP bronze (competed for Greece)
Mia Santoromito	AUS	WPO	2008	0–1–0 2007 Melbourne WAP silver
Gabriel Santos	BRA	SWM	2016—2020	0–1–0 2017 Budapest SWI silver: 4×100 m freestyle relay
Nicholas Santos	BRA	SWM	2008—2012	0–2–1 2015 Kazan SWI silver: 50 m butterfly; 2017 Budapest SWI silver: 50 m butterfly; 2019 Gwangju SWI bronze: 50 m butterfly
Michele Santucci	ITA	SWM	2008—2016	0–0–1 2015 Kazan SWI bronze: 4×100 m freestyle relay
Alicia Sanz (DNS)	ESP	SWA	2004	0–1–0 2003 Barcelona SYN silver: team Free Routine Combination
Carles Sanz	ESP	WPO	1996	2–0–0 1998 Perth WAP gold; 2001 Fukuoka WAP gold
Aleksandar Šapić	SRB SCG	WPO	1996—2008	1–1–2 1998 Perth WAP bronze (competed for FR Yugoslavia); 2001 Fukuoka WAP silver (competed for FR Yugoslavia); 2003 Barcelona WAP bronze (competed for Serbia and Montenegro); 2005 Montréal WAP gold (competed for Serbia and Montenegro)
Jean-Christophe Sarnin	FRA	SWM	1996	0–1–0 1998 Perth SWI silver: 200 m breaststroke
László Sárosi	HUN	WPO	1968—1976	1–1–0 1973 Belgrade WAP gold; 1975 Cali WAP silver
Hisayoshi Sato	JPN	SWM	2008	0–0–1 2005 Montréal SWI bronze: 4×100 m medley relay (swam in heats only)
Dmitry Sautin	RUS EUN	DIV	1992—2008	5–1–3 1994 Roma DIV gold: platform, silver: 3 m springboard (competed for Russia); 1998 Perth DIV gold: 3 m springboard and platform (competed for Russia); 2001 Fukuoka DIV gold: 3 m springboard, bronze: synchronized springboard (competed for Russia); 2003 Barcelona DIV gold: synchronized springboard, bronze: 3 m springboard (competed for Russia); 2007 Melbourne DIV bronze: 3 m springboard (competed for Russia)
Anastasiya Savchuk	UKR	SWA	2016—2020	1–1–9 2013 Barcelona SYN bronze: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN silver: team Free Routine Combination, bronze: team Free; 2019 Gwangju SYN gold: team Highlight Routine, bronze: duet Technical, duet Free, team Technical, team Free, and team Free Routine Combination
Jill Savery	USA	SWA	1996	2–0–0 1991 Perth SYN gold: team; 1994 Roma SYN gold: team
Dejan Savić	SRB SCG	Coach/WPO	1996—2020	1–1–2 1998 Perth WAP bronze (competed for FR Yugoslavia); 2001 Fukuoka WAP silver (competed for FR Yugoslavia); 2003 Barcelona WAP bronze (competed for Serbia and Montenegro); 2005 Montréal WAP gold (competed for Serbia and Montenegro)
Ðuro Savinović	CRO YUG	WPO	1976	0–0–1 1973 Belgrade WAP bronze
Mateusz Sawrymowicz	POL	SWM	2008—2016	1–0–0 2007 Melbourne SWI gold: 1500 m freestyle
Rick Say	CAN	SWM	2000—2008	0–2–1 2005 Montréal SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay; 2007 Melbourne SWI bronze: 4×200 m freestyle relay
Miloš Šćepanović	MNE	WPO	2008—2016	0–1–0 2013 Barcelona WAP silver
Tobias Schellenberg	GER	DIV	2004	0–1–2 2003 Barcelona DIV bronze: synchronized springboard; 2005 Montréal DIV silver: synchronized springboard; 2007 Melbourne DIV bronze: synchronized springboard
Xuxa Scherer	BRA	SWM	1996—2004	0–0–1 1994 Roma SWI bronze: 4×100 m freestyle relay
Gerhard Schiller	FRG	SWM	1972	0–0–1 1973 Belgrade SWI bronze: 4×200 m freestyle relay (swam in heats only)
Jess Schipper	AUS	SWM	2004—2012	5–4–1 2003 Barcelona SWI bronze: 4×100 m medley relay; 2005 Montréal SWI gold: 100 m butterfly and 4×100 m medley relay, silver: 200 m butterfly; 2007 Melbourne SWI gold: 200 m butterfly and 4×100 m medley relay, silver: 100 m butterfly; 2009 Roma SWI gold: 200 m butterfly, silver: 100 m butterfly and 4×100 m medley relay
Mel Schlanger	AUS	SWM	2008—2012	1–0–0 2007 Melbourne SWI gold: 4×100 m freestyle relay
Svenja Schlicht	FRG	SWM	1984—1988	1–0–1 1991 Perth SWI gold: 4×200 m freestyle relay (swam in heats only), bronze: 4×100 m medley relay (competed for Germany)
Conny Schmalfuß	GER	DIV	2000—2004	0–2–1 2001 Fukuoka DIV bronze: synchronized springboard; 2003 Barcelona DIV silver: 1 m springboard; 2005 Montréal DIV silver: synchronized springboard
Andreas Schmidt	FRG	SWM	1976—1984	0–2–3 1978 West Berlin SWI silver: 4×100 m freestyle relay and 4×100 m medley relay, bronze: 4×200 m freestyle relay; 1982 Guayaquil SWI bronze: 4×200 m freestyle relay and 4×100 m medley relay
Carmela Schmidt	GDR	SWM	1980	1–0–1 1982 Guayaquil SWI gold: 400 m freestyle, bronze: 800 m freestyle
Gábor Schmiedt	HUN	WPO	1988—1992	0–1–1 1982 Guayaquil WAP silver; 1991 Perth WAP bronze
Allison Schmitt	USA	SWM	2008—2020	1–4–0 2009 Roma SWI silver: 200 m freestyle and 4×200 m freestyle relay; 2011 Shanghai SWI gold: 4×200 m freestyle relay; 2019 Gwangju SWI silver: 4×100 m freestyle relay (swam in heats only) and 4×200 m freestyle relay (swam in heats only)
Petra Schneider	GDR	SWM	1980	2–1–1 1978 West Berlin SWI bronze: 400 m medley; 1982 Guayaquil SWI gold: 200 m medley and 400 m medley, silver: 400 m freestyle
Nathalie Schneyder	USA	SWA	1996	2–0–0 1991 Perth SYN gold: team; 1994 Roma SYN gold: team
Roland Schoeman	RSA	SWM	2000—2012	3–1–1 2001 Fukuoka SWI bronze: 50 m freestyle; 2005 Montréal SWI gold: 50 m freestyle and 50 m butterfly; 2005 Montréal SWI silver: 100 m freestyle; 2007 Melbourne SWI gold: 50 m butterfly
Anke Scholz	GER	SWM	1996	0–0–1 1994 Roma SWI bronze: 4×100 m freestyle relay (swam in heats only)
Joseph Schooling	SGP	SWM	2012—2020	0–0–2 2015 Kazan SWI bronze: 100 m butterfly; 2017 Budapest SWI bronze: 100 m butterfly
Alexander Schowtka	FRG	SWM	1984	0–2–0 1986 Madrid SWI silver: 4×200 m freestyle relay and 4×100 m medley relay (swam in heats only)
Daniela Schreiber	GER	SWM	2012	0–1–2 2009 Roma SWI silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay (swam in heats only); 2011 Shanghai SWI bronze: 4×100 m freestyle relay
Hinkelien Schreuder	NED	SWM	2008—2012	1–0–0 2009 Roma SWI gold: 4×100 m freestyle relay (swam in heats only)
Jürgen Schröder	FRG	WPO	1984	0–0–1 1982 Guayaquil WAP bronze
Brigitte Schuchardt	GDR	SWM	1972	0–0–1 1973 Belgrade SWI bronze: 100 m breaststroke
Sabina Schulze	GDR	SWM	1988	1–0–0 1986 Madrid SWI gold: 4×100 m freestyle relay
Brad Schumacher	USA	SWM/WPO	1996—2000	1–0–0 1998 Perth SWI gold: 4×100 m freestyle relay (swam in heats only)
Ben Schwietert	NED	SWM	2016	0–1–0 2017 Budapest SWI silver: 4×100 m freestyle mixed relay
Duncan Scott	GBR	SWM	2014—2020	3–1–1 2015 Kazan SWI gold: 4×200 m freestyle relay (swam in heats only); 2017 Budapest SWI gold: 4×200 m freestyle relay, silver: 4×100 m medley relay; 2019 Gwangju SWI gold: 4×100 m medley relay, bronze: 200 m freestyle
Fabio Scozzoli	ITA	SWM	2012	0–2–0 2011 Shanghai SWI silver: 50 m breaststroke and 100 m breaststroke
Olga Sedakova	RUS EUN	SWA	1992—1996	3–0–0 1998 Perth SYN gold: solo, duet, and team (competed for Russia)
Emily Seebohm	AUS	SWM	2008—2020	5–5–4 2007 Melbourne SWI gold: 4×100 m medley relay; 2009 Roma SWI silver: 4×100 m medley relay, bronze: 100 m backstroke; 2013 Barcelona SWI silver: 100 m backstroke, 4×100 m medley relay, and 4×100 m freestyle relay (swam in heats only); 2015 Kazan SWI gold: 100 m backstroke, 200 m backstroke, and 4×100 m freestyle relay, bronze: 4×100 m medley relay; 2017 Budapest SWI gold: 200 m backstroke, silver: 4×100 m freestyle relay (swam in heats only), bronze: 100 m backstroke and 4×100 m medley relay
Denis Šefik	MNE SRB SCG	WPO	2004—2012	1–1–1 2001 Fukuoka WAP silver (competed for FR Yugoslavia); 2003 Barcelona WAP bronze (competed for Serbia and Montenegro); 2005 Montréal WAP gold (competed for Serbia and Montenegro)
Elke Sehmisch	GDR	SWM	1972	1–0–0 1973 Belgrade SWI gold: 4×100 m freestyle relay (swam in heats only)
Karin Seick	FRG	SWM	1984—1988	0–1–0 1991 Perth SWI gold: 4×50 m freestyle relay (demonstration event), silver: 4×100 m freestyle relay (competed for Germany)
Melissa Seidemann	USA	WPO	2012—2020	3–0–0 2015 Kazan WAP gold; 2017 Budapest WAP gold; 2019 Gwangju WAP gold
Vladimir Selkov	RUS EUN	SWM	1992—1996	1–2–1 1991 Perth SWI silver: 4×100 m medley relay (swam in heats only), bronze: 200 m backstroke (competed for the Soviet Union); 1994 Roma SWI gold: 200 m backstroke, silver: 4×100 m medley relay (competed for Russia)
Hanna-Maria Seppälä	FIN	SWM	2000—2016	1–0–0 2003 Barcelona SWI gold: 100 m freestyle
Svitlana Serbina	UKR	DIV	1996—2000	1–0–0 1998 Perth DIV gold: synchronized platform
Andriy Serdinov	UKR	SWM	2000—2008	0–0–2 2003 Barcelona SWI bronze: 100 m butterfly; 2005 Montréal SWI bronze: 100 m butterfly
Ione Serrano	ESP	SWA	2004	0–1–0 2003 Barcelona SYN silver: team Free Routine Combination
Anđelo Šetka	CRO	WPO	2016	1–1–2 2013 Barcelona WAP bronze; 2015 Kazan WAP silver; 2017 Budapest WAP gold; 2019 Gwangju WAP bronze
Daiya Seto	JPN	SWM	2016—2020	4–1–2 2013 Barcelona SWI gold: 400 m medley; 2015 Kazan SWI gold: 400 m medley; 2017 Budapest SWI bronze: 200 m butterfly and 400 m medley; 2019 Gwangju SWI gold: 200 m medley and 400 m medley, silver: 200 m butterfly
Christina Seufert	USA	DIV/Referee	1984—2012	0–1–0 1982 Guayaquil DIV silver: 3 m springboard
Katy Sexton	GBR	SWM	2000—2004	1–1–0 2003 Barcelona SWI gold: 200 m backstroke, silver: 100 m backstroke
Erkin Shagayev	URS UZB	WPO	1980	1–0–0 1982 Guayaquil WAP gold
Shan Ying	CHN	SWM	1996	3–0–2 1994 Roma SWI gold: 4×100 m freestyle relay, 4×200 m freestyle relay (swam in heats only), and 4×100 m medley relay (swam in heats only); 1998 Perth SWI bronze: 50 m freestyle and 100 m freestyle
Eric Shanteau	USA	SWM	2008—2012	2–1–1 2009 Roma SWI gold: 4×100 m medley relay, silver: 200 m breaststroke, bronze: 200 m medley; 2011 Shanghai SWI gold: 4×100 m medley relay (swam in heats only)
Shao Yiwen	CHN	SWM	2012	0–0–1 2015 Kazan SWI bronze: 4×200 m freestyle relay (swam in heats only)
Yevgeny Sharonov	RUS URS EUN	WPO	1980—1992	1–0–1 1982 Guayaquil WAP gold (competed for the Soviet Union); 1986 Madrid WAP bronze (competed for the Soviet Union)
Royce Sharp	USA	SWM	1992	0–0–1 1994 Roma SWI bronze: 200 m backstroke
Tim Shaw	USA	SWM/WPO	1976—1984	4–0–0 1973 Belgrade SWI gold: 4×200 m freestyle relay (swam in heats only); 1975 Cali SWI gold: 200 m freestyle, 400 m freestyle, and 1500 m freestyle
Courtney Shealy	USA	SWM	2000	0–2–0 2001 Fukuoka SWI silver: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
Vladimir Shemetov	RUS URS	SWM	1980	0–3–2 1982 Guayaquil SWI silver: 4×200 m freestyle relay and 4×100 m medley relay, bronze: 100 m backstroke; 1991 Perth SWI silver: 4×100 m medley relay, bronze: 50 m backstroke (demonstration event) and 4×100 m freestyle relay
Shen Duo	CHN	SWM	2014—2016	1–0–1 2015 Kazan SWI gold: 4×100 m medley relay, bronze: 4×200 m freestyle relay
Nataliya Shepelina	RUS	WPO	2004—2008	0–0–2 2003 Barcelona WAP bronze; 2007 Melbourne WAP bronze
Alison Sheppard	GBR	SWM	1988—2004	0–1–0 2001 Fukuoka SWI silver: 4×100 m freestyle relay
Shi Jinglin	CHN	SWM	2016	1–0–3 2015 Kazan SWI gold: 4×100 m medley relay, bronze: 200 m breaststroke; 2017 Budapest SWI bronze: 200 m breaststroke and 4×100 m medley mixed relay (swam in heats only)
Shi Tingmao	CHN	DIV	2016—2020	8–1–0 2011 Shanghai DIV gold: 1 m springboard; 2013 Barcelona DIV gold: synchronized springboard; 2015 Kazan DIV gold: 3 m springboard and synchronized springboard, silver: 1 m springboard; 2017 Budapest DIV gold: 3 m springboard and synchronized springboard; 2019 Gwangju DIV gold: 3 m springboard and synchronized springboard
Ai Shibata	JPN	SWM	2004—2008	0–1–3 2005 Montréal SWI silver: 400 m freestyle, bronze: 800 m freestyle; 2007 Melbourne SWI bronze: 400 m freestyle and 1500 m freestyle
Nataliya Shibayeva	UKR EUN	SWM	1992	0–0–1 1986 Madrid SWI bronze: 100 m backstroke (competed for the Soviet Union)
Tom Shields	USA	SWM	2016—2020	1–0–0 2015 Kazan SWI gold: 4×100 m medley relay
Shinri Shioura	JPN	SWM	2016—2020	0–0–1 2013 Barcelona SWI bronze: 4×100 m medley relay
Alla Shishkina	ROC RUS	SWA	2012—2020	14–0–0 2009 Roma SYN gold: team Technical and team Free; 2011 Shanghai SYN gold: team Technical, team Free, and team Free Routine Combination; 2013 Barcelona SYN gold: team Technical, team Free, and team Free Routine Combination; 2015 Kazan SYN gold: team Technical, team Free, and team Free Routine Combination; 2019 Gwangju SYN gold: team Technical, team Free, and team Free Routine Combination
Yekaterina Shishova	RUS	WPO	2004	0–0–1 2003 Barcelona WAP bronze
Rie Shito	JPN	SWM	1992	0–1–0 1991 Perth SWI silver: 200 m butterfly
Anna Shorina	RUS	SWA	2004—2008	7–0–0 2001 Fukuoka SYN gold: team; 2003 Barcelona SYN gold: team; 2005 Montréal SYN gold: team and team Free Routine Combination; 2007 Melbourne SYN gold: team Technical, team Free, and team Free Routine Combination
Tatyana Shtyryova-Volynkina	URS UKR	DIV	1972—1976	0–1–0 1975 Cali DIV silver: 3 m springboard (competed as Tetiana Volynkina)
Mariya Shurochkina	ROC RUS	SWA	2016—2020	11–0–0 2013 Barcelona SYN gold: team Technical, team Free, and team Free Routine Combination; 2015 Kazan SYN gold: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN gold: team Technical and team Free; 2019 Gwangju SYN gold: team Technical, team Free, and team Free Routine Combination
Tim Shuttleworth	GBR	SWM	2016	0–0–1 2017 Budapest SWI bronze: 5 km open water
Si Yajie	CHN	DIV	2016	4–1–0 2013 Barcelona DIV gold: platform; 2015 Kazan DIV gold: synchronized platform (mixed); 2017 Budapest DIV gold: synchronized platform, silver: platform; 2019 Gwangju DIV gold: synchronized platform (mixed)
Julien Sicot	FRA	SWM	2004	0–0–2 2003 Barcelona SWI bronze: 4×100 m freestyle relay; 2007 Melbourne SWI bronze: 4×100 m freestyle relay
Aleksandr Sidorenko	URS UKR	SWM	1980	1–0–1 1978 West Berlin SWI bronze: 200 m medley; 1982 Guayaquil SWI gold: 200 m medley
Jani Sievinen	FIN	SWM	1992—2004	1–1–0 1994 Roma SWI gold: 200 m medley, silver: 400 m medley
Carlo Silipo	ITA	WPO	1992—2004	1–1–0 1994 Rome WAP gold; 2003 Barcelona WAP silver
Emily Silver	USA	SWM	2008	0–0–1 2005 Montréal SWI bronze: 4×100 m freestyle relay (swam in heats only)
Anastasiya Simanovich	ROC RUS	WPO	2016—2020	0–0–1 2017 Budapest WAP bronze
Dubravko Šimenc	CRO YUG	WPO	1988—2004	2–0–0 1986 Madrid WAP gold (competed for Yugoslavia); 1991 Perth WAP gold (competed for Yugoslavia)
Roldano Simeoni	ITA	WPO	1972—1980	1–0–1 1975 Cali WAP bronze; 1978 West Berlin WAP gold
Heather Simmons-Carrasco	USA	SWA	1996	2–0–0 1991 Perth SYN gold: team (competed as Heather Simmons); 1994 Roma SYN gold: team (competed as Heather Simmons)
Cornelia Sirch	GDR	SWM	1988	2–0–0 1982 Guayaquil SWI gold: 200 m backstroke; 1986 Madrid SWI gold: 200 m backstroke
Peter Sitt	GER FRG	SWM	1988—1992	1–1–0 1991 Perth SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay (competed for Germany)
Sarah Sjöström	SWE	SWM	2008—2020	8–6–3 2009 Roma SWI gold: 100 m butterfly; 2013 Barcelona SWI gold: 100 m butterfly, silver: 100 m freestyle; 2015 Kazan SWI gold: 50 m butterfly and 100 m butterfly, silver: 100 m freestyle and 4×100 m medley relay, bronze: 50 m freestyle; 2017 Budapest SWI gold: 50 m freestyle, 50 m butterfly, and 100 m butterfly silver: 100 m freestyle; 2019 Gwangju SWI gold: 50 m butterfly, silver: 50 m freestyle and 100 m butterfly, bronze: 100 m freestyle and 200 m freestyle
Anastasios Skhizas	GRE	WPO	2004—2008	0–0–1 2005 Montréal WAP bronze
Nikolay Skvortsov	RUS	SWM	2004—2012	0–0–2 2007 Melbourne SWI bronze: 200 m butterfly and 4×100 m medley relay
Susan Sloan	CAN	SWM	1976	0–0–1 1978 West Berlin SWI bronze: 4×100 m freestyle relay
Roman Sludnov	RUS	SWM	2000—2012	1–1–1 2001 Fukuoka SWI gold: 100 m breaststroke, silver: 50 m breaststroke; 2007 Melbourne SWI bronze: 4×100 m medley relay (swam in heats only)
Andrey Smirnov	RUS URS	SWM	1976	0–1–1 1975 Cali SWI silver: 400 m medley, bronze: 200 m medley
Nikolay Smirnov	URS UKR	WPO	1988	1–0–1 1982 Guayaquil WAP gold; 1986 Madrid WAP bronze
Sergey Smiryagin	RUS URS	SWM	1980	0–3–1 1982 Guayaquil SWI silver: 4×100 m freestyle relay and 4×100 m medley relay; 1986 Madrid SWI silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay (swam in heats only)
Yasemin Smit	NED	WPO	2008	0–1–0 2015 Kazan WAP silver
Anabelle Smith	AUS	DIV	2012—2020	0–0–1 2011 Shanghai DIV bronze: synchronized springboard
Clark Smith	USA	SWM	2016	0–0–1 2017 Budapest SWI bronze: 4×200 m freestyle relay (swam in heats only)
Dan Smith	AUS	SWM	2016	0–0–1 2015 Kazan SWI bronze: 4×200 m freestyle relay
Graeme Smith	GBR	SWM	1996—2004	0–1–1 2001 Fukuoka SWI silver: 1500 m freestyle, bronze: 800 m freestyle
Graham Smith	CAN	SWM	1976	1–1–0 1978 West Berlin SWI gold: 200 m medley, silver: 100 m breaststroke
Kierra Smith	CAN	SWM	2016—2020	0–0–1 2019 Gwangju SWI bronze: 4×100 m medley relay (swam in heats only)
Leah Smith	USA	SWM	2016	2–2–2 2015 Kazan SWI gold: 4×200 m freestyle relay; 2017 Budapest SWI gold: 4×200 m freestyle relay, silver: 400 m freestyle, bronze: 800 m freestyle; 2019 Gwangju SWI silver: 4×200 m freestyle relay (swam in heats only), bronze: 400 m freestyle
Martin Smith	GBR	SWM	1976—1980	0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay
Shannon Smith	CAN	SWM	1976	0–0–1 1975 Cali SWI bronze: 4×100 m freestyle relay
Mile Smodlaka	CRO	WPO	2000—2008	1–0–0 2007 Melbourne WAP gold
Olivia Smoliga	USA	SWM	2016—2020	4–0–1 2017 Budapest SWI gold: 4×100 m freestyle relay (swam in heats only) and 4×100 m medley relay (swam in heats only); 2019 Gwangju SWI gold: 50 m backstroke and 4×100 m medley relay (swam in heats only), bronze: 100 m backstroke
Yury Smolovoy	KAZ RUS	WPO	1996—2004	0–0–1 1994 Rome WAP bronze (competed for Russia)
Yelena Smurova	RUS	WPO	2000—2008	0–0–2 2003 Barcelona WAP bronze; 2007 Melbourne WAP bronze
Ingvild Snildal	NOR	SWM	2008—2012	0–0–1 2009 Roma SWI bronze: 50 m butterfly
Yevgeniya Soboleva	ROC RUS	WPO	2008—2020	0–0–3 2007 Melbourne WAP bronze; 2009 Rome WAP bronze; 2011 Shanghai WAP bronze
Michael Söderlund	SWE	SWM	1980—1988	0–0–1 1982 Guayaquil SWI bronze: 4×100 m freestyle relay (swam in heats only)
Song Donglun	CHN	WPO	2012—2016	0–1–0 2011 Shanghai WAP silver
Rebecca Soni	USA	SWM	2008—2012	4–1–1 2009 Roma SWI gold: 100 m breaststroke, silver: 50 m breaststroke; 2011 Shanghai SWI gold: 100 m breaststroke, 200 m breaststroke, and: 4×100 m medley relay, bronze: 50 m breaststroke
Slobodan Soro	BRA SRB	WPO	2008—2016	1–1–0 2009 Rome WAP gold (competed for Serbia); 2011 Shanghai WAP silver (competed for Serbia)
Ildikó Sós Zirigh	HUN	WPO	2004—2008	0–1–0 2001 Fukuoka WAP silver
Aleksandar Šoštar	SRB SCG YUG	WPO	1988—2000	2–1–0 1986 Madrid WAP gold (competed for Yugoslavia); 1991 Perth WAP gold (competed for Yugoslavia); 2001 Fukuoka WAP silver (competed for FR Yugoslavia)
Ash Southern	AUS	WPO	2012—2016	0–1–0 2013 Barcelona WAP silver
Torsten Spanneberg	GER	SWM	2000—2004	0–1–2 1994 Roma SWI bronze: 4×200 m freestyle relay (swam in heats only); 2001 Fukuoka SWI silver: 4×100 m medley relay, bronze: 4×100 m freestyle relay
Gemma Spofforth	GBR	SWM	2008—2012	1–0–0 2009 Roma SWI gold: 100 m backstroke
Christian Sprenger	AUS	SWM	2008—2012	1–3–2 2009 Roma SWI bronze: 200 m breaststroke and 4×100 m medley relay (swam in heats only); 2011 Shanghai SWI silver: 4×100 m medley relay (swam in heats only); 2013 Barcelona SWI gold: 100 m breaststroke, silver: 50 m breaststroke and 4×100 m medley relay
Nicholas Sprenger	AUS	SWM	2004—2008	1–0–1 2003 Barcelona SWI gold: 4×200 m freestyle relay; 2005 Montréal SWI bronze: 4×200 m freestyle relay
Amber Stachowski	USA	WPO	2004	1–0–0 2003 Barcelona WAP gold
Hagen Stamm	GER FRG	WPO	1984—1992	0–0–1 1982 Guayaquil WAP bronze (competed for West Germany)
Mike Stamm	USA	SWM	1972	1–1–0 1973 Belgrade SWI gold: 4×100 m medley relay, silver: 100 m backstroke
Przemysław Stańczyk	POL	SWM	2004—2008	1–0–0 2007 Melbourne SWI gold: 800 m freestyle
Claudia Stănescu	ROU	SWM	1992	0–0–0 1991 Perth bronze: 4×50 m freestyle relay (demonstration event)
Benjamin Starke	GER	SWM	2008—2012	0–1–1 2009 Roma SWI silver: 4×100 m medley relay; 2011 Shanghai SWI bronze: 4×100 m medley relay
Petra van Staveren	NED	SWM	1984	0–0–1 1986 Madrid SWI bronze: 4×100 m medley relay
Antonello Steardo	ITA	WPO	1980—1988	0–1–0 1986 Madrid WAP silver
Marrit Steenbergen	NED	SWM	2016—2020	0–2–0 2015 Kazan SWI silver: 4×100 m freestyle relay and 4×100 m freestyle mixed relay (swam in heats only)
Britta Steffen	GER	SWM	2000—2012	2–2–3 2007 Melbourne SWI silver: 4×200 m freestyle relay, bronze: 100 m freestyle; 2009 Roma SWI gold: 50 m freestyle and 100 m freestyle, silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay; 2011 Shanghai SWI bronze: 4×100 m freestyle relay
Jessica Steffens	USA	WPO	2008—2012	1–0–0 2009 Rome WAP gold
Maggie Steffens	USA	WPO	2012—2020	3–0–0 2015 Kazan WAP gold; 2017 Budapest WAP gold; 2019 Gwangju WAP gold
Angela Steinbach	FRG	SWM	1972	0–0–1 1973 Belgrade SWI bronze: 4×100 m freestyle relay
Klaus Steinbach	GER FRG	DOSB/SWM	1972—2006	1–4–2 1973 Belgrade SWI bronze: 4×200 m freestyle relay; 1975 Cali SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay and 4×100 m medley relay; 1978 West Berlin SWI silver: 4×100 m freestyle relay and 4×100 m medley relay, bronze: 100 m freestyle
Ádám Steinmetz	HUN	WPO	2004—2012	0–1–0 2005 Montréal WAP silver
Barnabás Steinmetz	HUN	WPO	2000—2004	1–1–0 1998 Perth WAP silver; 2003 Barcelona WAP gold
Manuela Stellmach	GDR GER	SWM	1988—1992	4–2–1 1986 Madrid SWI gold: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay (swam in heats only), silver: 200 m freestyle (competed for East Germany); 1991 Perth SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay (competed for Germany)
Jill Sterkel	USA	SWM	1976—1988	1–2–2 1978 West Berlin SWI gold: 4×100 m freestyle relay; 1982 Guayaquil SWI silver: 4×100 m freestyle relay and 4×100 m medley relay, bronze: 100 m freestyle; 1986 Madrid WAP bronze
Christin Steuer	GER	DIV	2004—2012	0–0–2 2007 Melbourne DIV bronze: platform; 2011 Shanghai DIV bronze: synchronized platform
Craig Stevens	AUS	SWM	2004—2008	1–1–0 2003 Barcelona SWI gold: 4×200 m freestyle relay; 2007 Melbourne SWI silver: 800 m freestyle
Mark Stevens	GBR	SWM	1996—2000	0–0–1 1998 Perth SWI bronze: 4×200 m freestyle relay (swam in heats only)
Evan Stewart	ZIM	DIV	1992—2000	1–0–0 1994 Roma DIV gold: 1 m springboard
Mel Stewart	USA	SWM	1988—1992	1–1–0 1991 Perth SWI gold: 200 m butterfly, silver: 4×200 m freestyle relay
Mercédesz Stieber	HUN	WPO	2004—2008	2–1–0 1994 Rome WAP gold; 2001 Fukuoka WAP silver; 2005 Montréal WAP gold
Hannah Stockbauer	GER	SWM	2000—2004	5–1–1 2001 Fukuoka SWI gold: 800 m freestyle and 1500 m freestyle, silver: 4×200 m freestyle relay, bronze: 400 m freestyle; 2003 Barcelona SWI gold: 400 m freestyle, 800 m freestyle, and 1500 m freestyle
Hayden Stoeckel	AUS	SWM	2008—2012	1–1–0 2007 Melbourne SWI gold: 4×100 m medley relay (swam in heats only); 2011 Shanghai SWI silver: 4×100 m medley relay
Lutz Stoklasa	FRG	SWM	1968—1972	0–1–0 1975 Cali SWI silver: 4×100 m medley relay (swam in heats only)
Kyle Stolk	NED	SWM	2014—2016	0–2–0 2015 Kazan SWI silver: 4×100 m freestyle mixed relay (swam in heats only); 2017 Budapest SWI silver: 4×100 m freestyle mixed relay
Clementine Stoney	AUS	SWM	2000	1–0–0 2001 Fukuoka gold: 4×100 m medley relay (swam in heats only)
Petar Stoychev	BUL	OWS/SWM	2000—2012	1–0–3 2003 Barcelona SWI bronze: 25 km open water; 2005 Montréal SWI bronze: 10 km open water and 25 km open water; 2011 Shanghai SWI gold: 25 km open water
Rod Strachan	USA	SWM	1976	0–1–0 1973 Belgrade SWI silver: 400 m medley
Vyacheslav Strakhov	RUS URS	DIV	1972—1976	0–0–1 1975 Cali DIV bronze: 3 m springboard
Sharleen Stratton	AUS	DIV	2008—2012	0–0–2 2007 Melbourne DIV bronze: synchronized springboard; 2011 Shanghai DIV bronze: synchronized springboard
Astrid Strauß	GDR	SWM	1988	2–1–0 1986 Madrid SWI gold: 800 m freestyle and 4×200 m freestyle relay, silver: 400 m freestyle
Jérémy Stravius	FRA	SWM	2012—2016	4–3–1 2011 Shanghai SWI gold: 100 m backstroke, silver: 4×100 m freestyle relay and 4×200 m freestyle relay; 2013 Barcelona SWI gold: 4×100 m freestyle relay and 4×100 m medley relay, silver: 50 m backstroke, bronze: 100 m backstroke; 2015 Kazan SWI gold: 4×100 m freestyle relay
Ivar Stukolkin	EST URS	SWM	1980	0–2–0 1978 West Berlin SWI silver: 4×200 m freestyle relay (swam in heats only); 1982 Guayaquil SWI silver: 4×200 m freestyle relay
Albert Subirats	VEN	SWM	2004—2016	0–0–1 2007 Melbourne SWI bronze: 100 m butterfly
Vaso Subotić	SCG	WPO	1996	1–0–0 1991 Perth WAP gold (competed for Yugoslavia)
Nora Subschinski	GER	DIV	2004—2016	0–0–2 2007 Melbourne DIV bronze: synchronized platform; 2011 Shanghai DIV bronze: synchronized platform
Attila Sudár	HUN	WPO	1976—1980	0–2–0 1978 West Berlin WAP silver; 1982 Guayaquil WAP silver
Jill Sudduth	USA	SWA	1996	2–0–0 1994 Roma SYN gold: duet; 1994 Roma SYN gold: team
Aleksandr Sukhorukov	RUS	SWM	2008—2016	0–4–1 2009 Roma SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay; 2013 Barcelona SWI silver: 4×200 m freestyle relay, bronze: 4×100 m freestyle relay (swam in heats only); 2015 Kazan SWI silver: 4×100 m freestyle relay
Sandro Sukno	CRO	WPO	2012—2016	1–1–3 2009 Rome WAP bronze; 2011 Shanghai WAP bronze; 2013 Barcelona WAP bronze; 2015 Kazan WAP silver; 2017 Budapest WAP gold
Eamon Sullivan	AUS	SWM	2004—2012	2–0–1 2007 Melbourne SWI gold: 4×100 m medley relay, bronze: 100 m freestyle; 2011 Shanghai SWI gold: 4×100 m freestyle relay
Sun Huizi	CHN	WPO	2008—2012	0–1–0 2011 Shanghai WAP silver
Sun Meichen	CHN	SWM	2016	2–0–0 2017 Budapest SWI gold: 200 m freestyle and 400 m freestyle
Sun Shuwei	CHN	DIV	1992	2–1–0 1991 Perth DIV gold: platform; 1994 Roma DIV silver: platform; 1998 Perth DIV gold: synchronized platform
Sun Wenyan	CHN	SWA	2012—2020	0–13–2 ; 2011 Shanghai SYN bronze: solo Free; 2015 Kazan SYN silver: duet Technical, duet Free, team Technical, team Free, and team Free Routine Combination, bronze: solo Technical; 2019 Gwangju SYN silver: duet Technical, duet Free, team Technical, team Free, and team Free Routine Combination
Sun Yang	CHN	SWM	2008—2016	9–2–3 2009 Roma SWI bronze: 1500 m freestyle; 2011 Shanghai SWI gold: 800 m freestyle and 1500 m freestyle, silver: 400 m freestyle, bronze: 4×200 m freestyle relay; 2013 Barcelona SWI gold: 400 m freestyle, 800 m freestyle, and 1500 m freestyle, bronze: 4×200 m freestyle relay; 2015 Kazan SWI gold: 400 m freestyle and 800 m freestyle, silver: 200 m freestyle; 2019 Gwangju SWI gold: 200 m freestyle and 400 m freestyle
Sun Yating	CHN	WPO	2008—2016	0–1–0 2011 Shanghai WAP silver
Sun Ye	CHN	SWM	2008—2012	0–1–0 2011 Shanghai SWI silver: 4×100 m medley relay (swam in heats only)
Sun Yujun	CHN	WPO	2008—2012	0–1–0 2011 Shanghai WAP silver
Emiko Suzuki	JPN	SWA	2004—2008	1–6–4 2001 Fukuoka SYN silver: team; 2003 Barcelona SYN gold: team Free Routine Combination, silver: team; 2005 Montréal SYN silver: team and team Free Routine Combination, bronze: duet; 2007 Melbourne SYN silver: team Technical and team Free Routine Combination, bronze: duet Technical, duet Free, and team Free
Jan Świtkowski	POL	SWM	2016	0–0–1 2015 Kazan SWI bronze: 200 m butterfly
Kseniya Sydorenko	UKR	SWA	2008—2020	0–1–1 2017 Budapest SYN silver: team Free Routine Combination, bronze: team Free
Denys Sylantiev	UKR	SWM	1996—2008	1–0–0 1998 Perth SWI gold: 200 m butterfly
József Szabó	HUN	SWM	1988	1–0–0 1986 Madrid SWI gold: 200 m breaststroke
Tünde Szabó	HUN	SWM	1992	0–1–0 1991 Perth SWI silver: 100 m backstroke
Zoltán Szécsi	HUN	WPO	2000—2012	1–2–0 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP silver
Andreas Szigat	GER	SWM	1992	0–0–1 1994 Roma SWI bronze: 4×200 m freestyle relay
István Szívós, Jr.	HUN	WPO	1968—1980	1–2–0 1973 Belgrade WAP gold; 1975 Cali WAP silver; 1978 West Berlin WAP silver
Márton Szivós	HUN	WPO	2012—2016	1–2–0 2005 Montréal WAP silver; 2007 Melbourne WAP silver; 2013 Barcelona WAP gold
Krisztina Szremkó	HUN	WPO	2004—2008	1–1–0 1994 Rome WAP gold; 2001 Fukuoka WAP silver
Gabriella Szűcs	HUN	WPO	2012—2020	0–0–1 2013 Barcelona WAP bronze
Chiara Tabani	ITA	WPO	2016	0–0–1 2015 Kazan WAP bronze
Masako Tachibana	JPN	SWA	2008	0–4–1 2005 Montréal SYN silver: team and team Free Routine Combination; 2007 Melbourne SYN silver: team Technical and team Free Routine Combination, bronze: team Free
Miya Tachibana	JPN	SWA	1996—2004	1–4–3 1994 Roma SYN silver: duet, bronze: team; 1998 Perth SYN silver: duet and team, bronze: solo; 2001 Fukuoka SYN gold: duet, bronze: solo; 2003 Barcelona SYN silver: duet
Nobutaka Taguchi	JPN	SWM	1968—1976	0–1–2 1973 Belgrade SWI bronze: 100 m breaststroke and 200 m breaststroke; 1975 Cali SWI silver: 100 m breaststroke
Roger Tahull	ESP	WPO	2016—2020	0–1–0 2019 Gwangju WAP silver
Yasuko Tajima	JPN	SWM	2000	0–0–1 1998 Perth SWI bronze: 400 m medley
Orsolya Takács	HUN	WPO	2008—2016	1–0–1 2005 Montréal WAP gold; 2013 Barcelona WAP bronze
Kaori Takahashi	JPN	SWA	1996	0–0–1 1994 Roma SYN bronze: team
Aki Takayama	JPN	SWA	1992	0–1–2 1986 Madrid SYN bronze: team; 1991 Perth SYN silver: duet, bronze: team
Miho Takeda	JPN	SWA	1996—2004	1–5–1 1994 Roma SYN bronze: team; 1998 Perth SYN silver: duet and team; 2001 Fukuoka SYN gold: duet, silver: team; 2003 Barcelona SYN silver: duet and team
Tan Liangde	CHN	DIV	1984—1992	0–2–0 1986 Madrid DIV silver: 3 m springboard; 1991 Perth DIV silver: 3 m springboard
Tan Shuping	CHN	DIV	1992—1996	1–1–0 1994 Roma DIV gold: 3 m springboard, silver: 1 m springboard
Masami Tanaka	JPN	SWM	1996—2004	0–0–1 1998 Perth SWI bronze: 4×100 m medley relay
Miyako Tanaka	JPN	SWA	1988	0–0–1 1986 Madrid SYN bronze: team
Liam Tancock	GBR	SWM	2008—2012	2–0–3 2005 Montréal SWI bronze: 50 m backstroke; 2007 Melbourne SWI bronze: 50 m backstroke and 100 m backstroke; 2009 Roma SWI gold: 50 m backstroke; 2011 Shanghai SWI gold: 50 m backstroke
Uğur Taner	TUR	SWM	1992	1–0–0 1994 Rome SWI gold: 4×100 m freestyle relay (competed for the United States)
Tang Jingzhi	CHN	SWM	2008	0–0–1 2005 Montréal SWI bronze: 4×200 m freestyle relay (swam in heats only)
Tang Mengni	CHN	SWA	2016	1–6–0 2015 Kazan SYN silver: team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN gold: team Free Routine Combination, silver: team Technical and team Free; 2019 Gwangju SYN silver: team Free Routine Combination
Tang Yi	CHN	SWM	2008—2016	0–1–1 2011 Shanghai SWI silver: 4×100 m medley relay, bronze: 4×200 m freestyle relay
Yekaterina Tankeyeva	RUS	WPO	2012	0–0–1 2011 Shanghai WAP bronze
Ashley Tappin	USA	SWM	1992—2000	1–1–1 1991 Perth SWI gold: 4×100 m freestyle relay (swam in heats only); 1994 Roma SWI silver: 4×100 m freestyle relay (swam in heats only), bronze: 4×200 m freestyle relay (swam in heats only)
Grigory Tarasevich	ROC RUS	SWM	2016—2020	0–0–1 2017 Budapest SWI bronze: 4×100 m medley relay (swam in heats only)
Matt Targett	AUS	SWM	2008—2012	1–2–1 2009 Roma SWI silver: 50 m butterfly, bronze: 4×100 m medley relay; 2011 Shanghai SWI gold: 4×100 m freestyle relay, silver: 50 m butterfly
Roser Tarragó	ESP	WPO	2012—2020	1–1–0 2013 Barcelona WAP gold; 2019 Gwangju WAP silver
Davis Tarwater	USA	SWM	2012	1–0–0 2009 Roma SWI gold: 4×200 m freestyle relay (swam in heats only)
Juri Tatsumi	JPN	SWA	2000—2004	1–2–0 2001 Fukuoka SYN silver: team; 2003 Barcelona SYN gold: team Free Routine Combination, silver: team
Ulrike Tauber	GDR	SWM	1976—1980	1–2–1 1975 Cali SWI gold: 400 m medley, silver: 200 m medley; 1978 West Berlin SWI silver: 400 m medley, bronze: 200 m medley
Veniamin Tayanovich	RUS EUN	SWM	1992	0–2–1 1986 Madrid SWI silver: 4×100 m freestyle relay (swam in heats only) (competed for the Soviet Union); 1991 Perth SWI silver: 4×100 m medley relay, bronze: 4×100 m freestyle relay (competed for the Soviet Union)
Leon Taylor	GBR	DIV	1996—2004	0–0–1 2005 Montréal DIV bronze: synchronized platform
Laura Teani	ITA	WPO	2016	0–0–1 2015 Kazan WAP bronze
André Teixeira	BRA	SWM	1992—1996	0–0–1 1994 Roma SWI bronze: 4×100 m freestyle relay
Stefano Tempesti	ITA	WPO	2000—2016	1–1–0 2003 Barcelona WAP silver; 2011 Shanghai WAP gold
Riccardo Tempestini	ITA	WPO	1988	0–1–0 1986 Madrid WAP silver
Teng Fei	CHN	WPO	2008—2012	0–1–0 2011 Shanghai WAP silver
Aya Terakawa	JPN	SWM	2004—2012	0–1–2 2011 Shanghai SWI silver: 50 m backstroke; 2013 Barcelona SWI bronze: 50 m backstroke and 100 m backstroke
Ken Terauchi	JPN	DIV	1996—2020	0–0–1 2001 Fukuoka DIV bronze: 3 m springboard
Cristina Teuscher	USA	SWM	1996—2000	1–2–1 1994 Roma SWI silver: 400 m freestyle, bronze: 4×200 m freestyle relay; 1998 Perth SWI silver: 4×200 m freestyle relay; 2001 Fukuoka SWI gold: 4×200 m freestyle relay
Mark Tewksbury	CAN	SWM	1988—1992	0–1–0 1991 Perth SWI silver: 50 m backstroke (demonstration event) and 100 m backstroke
Stev Theloke	GER	SWM	1996—2000	0–0–1 1998 Perth SWI bronze: 100 m backstroke
Argyris Theodoropoulos	GRE	WPO	2004—2012	0–0–1 2005 Montréal WAP bronze
Margot Thien	USA	SWA	1996	1–0–0 1994 Roma SYN gold: team
Nick Thoman	USA	SWM	2012	1–0–0 2011 Shanghai SWI gold: 4×100 m medley relay
Karine Thomas	CAN	SWA	2012—2016	0–0–2 2009 Roma SYN bronze: team Free Routine Combination; 2011 Shanghai SYN bronze: team Free Routine Combination
Petria Thomas	AUS	SWM	1996—2004	3–2–2 1998 Perth SWI silver: 200 m butterfly and 4×100 m medley relay, bronze: 100 m butterfly and 4×200 m freestyle relay; 2001 Fukuoka SWI gold: 100 m butterfly, 200 m butterfly, and 4×100 m medley relay
Jenny Thompson	USA	SWM	1992—2004	8–5–2 1991 Perth SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only); 1994 Roma SWI silver: 4×100 m freestyle relay and 4×100 m medley relay, bronze: 4×200 m freestyle relay; 1998 Perth SWI gold: 100 m freestyle, 100 m butterfly, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 4×200 m freestyle relay; 2003 Barcelona SWI gold: 100 m butterfly and 4×100 m freestyle relay, silver: 50 m butterfly and 4×100 m medley relay, bronze: 100 m freestyle
Kirsten Thomson	AUS	SWM	2000	0–1–0 2003 Barcelona SWI silver: 4×200 m freestyle relay
Markus Thormeyer	CAN	SWM	2016—2020	0–0–1 2017 Budapest SWI bronze: 4×100 m freestyle mixed relay (swam in heats only)
Ian Thorpe	AUS	SWM	2000—2004	11–1–1 1998 Perth SWI gold: 400 m freestyle and 4×200 m freestyle relay; 2001 Fukuoka SWI gold: 200 m freestyle, 400 m freestyle, 800 m freestyle, 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay; 2003 Barcelona SWI gold: 200 m freestyle, 400 m freestyle, and 4×200 m freestyle relay, silver: 200 m medley, bronze: 100 m freestyle
Brianna Throssell	AUS	SWM	2014—2020	2–2–1 2017 Budapest SWI bronze: 4×100 m medley relay (swam in heats only); 2019 Gwangju SWI gold: 4×100 m freestyle relay and 4×200 m freestyle relay, silver: 4×100 m medley relay (swam in heats only) and 4×100 m freestyle mixed relay (swam in heats only)
Tian Liang	CHN	DIV	1996—2004	3–1–2 1998 Perth DIV gold: synchronized platform, silver: platform; 2001 Fukuoka DIV gold: platform and synchronized platform; 2003 Barcelona DIV bronze: platform and synchronized platform
Zsuzsanna Tiba	HUN	WPO	2004	0–1–0 2001 Fukuoka WAP silver
Anzhelika Timanina	RUS	SWA	2012	11–0–0 2009 Roma SYN gold: team Technical and team Free; 2011 Shanghai SYN gold: team Technical, team Free, and team Free Routine Combination; 2013 Barcelona SYN gold: team Technical, team Free, and team Free Routine Combination; 2015 Kazan SYN gold: team Technical, team Free, and team Free Routine Combination
Anna Timofeyeva	ROC RUS	WPO	2016—2020	0–0–2 2009 Rome WAP bronze; 2017 Budapest WAP bronze
Vladimir Timoshinin	RUS URS	DIV	1988—1996	0–0–1 1994 Roma DIV bronze: platform (competed for Russia)
Svetlana Timoshinina	RUS	DIV	1996—2004	0–1–1 2001 Fukuoka DIV silver: synchronized platform; 2003 Barcelona DIV bronze: synchronized platform
Yuliya Timoshinina	ROC RUS	DIV	2016—2020	0–1–0 2019 Gwangju DIV silver: team
Paola Tirados	ESP	SWA	2000—2008	0–5–4 2003 Barcelona SYN silver: team Free Routine Combination, bronze: duet; 2005 Montréal SYN silver: duet, bronze: team, and team Free Routine Combination; 2007 Melbourne SYN silver: duet Technical, duet Free, and team Free, bronze: team Technical
Giedrius Titenis	LTU	SWM	2008—2020	0–0–1 2009 Roma SWI bronze: 200 m breaststroke
Vladimir Tkachenko	URS UKR	SWM	1988	0–0–1 1991 Perth bronze: 4×100 m freestyle relay (swam in heats only)
Kenneth To	AUS	SWM	2010	0–1–0 2013 Barcelona SWI silver: 4×100 m medley relay (swam in heats only)
Giovanni Tocci	ITA	DIV	2010—2020	0–0–1 2017 Budapest DIV bronze: 1 m springboard
Mark Tonelli	AUS	SWM	1976—1980	0–1–0 1975 Cali SWI silver: 200 m backstroke
Gelena Topilina	RUS	SWA	2016	3–0–0 2015 Kazan SYN gold: team Technical, team Free, and team Free Routine Combination
Dara Torres	USA	SWM	1984—2008	0–1–0 1986 Madrid SWI silver: 4×100 m freestyle relay
Andrea Tóth	HUN	WPO	2004	1–0–0 2005 Montréal WAP gold
Frank Tóth	HUN	WPO	1992—1996	0–1–1 1991 Perth WAP bronze; 1998 Perth WAP silver
Ildikó Tóth	HUN	WPO	2012—2016	0–0–1 2013 Barcelona WAP bronze
Imre Tóth	HUN	WPO	1988—1992	0–0–1 1991 Perth WAP bronze
László Tóth	HUN	WPO	1988—1996	0–0–1 1991 Perth WAP bronze
Noémi Tóth	ITA	WPO	2004	1–1–0 1994 Rome WAP gold (competed for Hungary); 2003 Barcelona WAP silver (competed for Italy)
Lois Toulson	GBR	DIV	2016—2020	0–1–0 2017 Budapest DIV silver: synchronized platform (mixed)
Loudy Tourky-Wiggins	AUS	DIV	1996—2012	0–3–1 2001 Fukuoka DIV bronze: platform (competed as Loudy Tourky); 2003 Barcelona DIV silver: synchronized platform (competed as Loudy Tourky); 2005 Montréal DIV silver: platform and synchronized platform (competed as Loudy Tourky)
Paolo Trapanese	ITA	WPO	1988	0–1–0 1986 Madrid WAP silver
Petar Trbojević	SRB SCG	WPO	1996—2004	1–1–1 1998 Perth WAP bronze (competed for FR Yugoslavia); 2001 Fukuoka WAP silver (competed for FR Yugoslavia); 2005 Montréal WAP gold (competed for Serbia and Montenegro)
Birgit Treiber	GDR	SWM	1976—1980	2–5–0 1975 Cali SWI gold: 200 m backstroke and 4×100 m freestyle relay (swam in heats only), silver: 100 m backstroke; 1978 West Berlin SWI silver: 100 m backstroke, 200 m backstroke, 4×100 m medley relay, and 4×100 m freestyle relay (swam in heats only)
Christian Tröger	GER	SWM	1992—2000	1–1–1 1991 Perth SWI gold: 4×50 m freestyle relay (demonstration event) and 4×200 m freestyle relay (swam in heats only), silver: 4×100 m freestyle relay (swam in heats only); 1994 Roma SWI bronze: 4×200 m freestyle relay (swam in heats only)
Larisa Tsaryova	RUS URS	SWM	1976—1980	0–0–3 1978 West Berlin SWI bronze: 100 m freestyle, 200 m freestyle, and 4×100 m medley relay
Khristina Tsoukala	GRE	WPO	2008	1–0–0 2011 Shanghai WAP gold
Scott Tucker	USA	SWM	1996—2000	1–2–0 1998 Perth SWI gold: 4×100 m freestyle relay, silver: 4×100 m medley relay (swam in heats only); 2003 Barcelona SWI silver: 4×100 m freestyle relay
Olga Turova	RUS	WPO	2004—2008	0–0–1 2003 Barcelona WAP bronze
Jenny Turrall	AUS	SWM	1976	1–1–0 1975 Cali SWI gold: 800 m freestyle, silver: 400 m freestyle
Vanja Udovičić	SRB SCG	WPO	2004—2012	2–1–1 2003 Barcelona WAP bronze (competed for Serbia and Montenegro); 2005 Montréal WAP gold (competed for Serbia and Montenegro); 2009 Rome WAP gold (competed for Serbia); 2011 Shanghai WAP silver (competed for Serbia)
Lutz Unger	GDR	SWM	1972	0–0–1 1973 Belgrade SWI bronze: 4×100 m freestyle relay (swam in heats only)
Veljko Uskoković	MNE SCG	WPO	1996—2008	0–1–1 1998 Perth WAP bronze (competed for FR Yugoslavia); 2001 Fukuoka WAP silver (competed for FR Yugoslavia)
Ivan Usov	RUS	SWM	2004	1–0–0 2003 Barcelona SWI gold: 4×100 m freestyle relay
Darya Ustinova	ROC RUS	SWM	2016—2020	0–0–1 2013 Barcelona SWI bronze: 4×100 m medley relay
Anna Ustyukhina	RUS	WPO	2016	0–0–1 2017 Budapest WAP bronze
Melanie Valerio	USA	SWM	1996	1–0–0 1998 Perth SWI gold: 4×100 m freestyle relay (swam in heats only)
Ágnes Valkai	HUN	WPO	2004—2008	1–1–0 2001 Fukuoka WAP silver; 2005 Montréal WAP gold
Erzsébet Valkay	HUN ITA	WPO	2004—2008	0–1–0 2001 Fukuoka WAP silver (competed for Hungary)
Jessica Vall	ESP	SWM	2016—2020	0–0–1 2015 Kazan SWI bronze: 200 m breaststroke
Xavi Vallès	ESP	WPO	2008—2012	0–1–1 2007 Melbourne WAP bronze; 2009 Rome WAP silver
Márton Vámos	HUN	WPO	2016—2020	1–1–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver
Amy Van Dyken	USA	SWM	1996—2000	3–2–1 1994 Roma SWI silver: 4×100 m freestyle relay and 4×100 m medley relay, bronze: 50 m freestyle; 1998 Perth SWI gold: 50 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay
Chantal Van Landeghem	CAN	SWM	2016	0–0–3 2015 Kazan SWI bronze: 4×100 m freestyle mixed relay; 2017 Budapest SWI bronze: 4×100 m freestyle mixed relay and 4×100 m medley mixed relay (swam in heats only)
Moriah Van Norman	USA	WPO	2008	2–1–0 2005 Montréal WAP silver; 2007 Melbourne WAP gold; 2009 Rome WAP gold
Lauren Van Oosten	CAN	SWM	2004	0–0–1 1998 Perth SWI bronze: 100 m breaststroke
Karen Van Wirdum	AUS	SWM	1988—1996	0–1–0 1991 Perth SWI silver: 4×100 m medley relay
Kim Vandenberg	USA	SWM	2008	0–1–0 2007 Melbourne SWI silver: 200 m butterfly
Peter Vanderkaay	USA	SWM	2004—2012	4–0–0 2005 Montréal SWI gold: 4×200 m freestyle relay and 4×200 m freestyle relay; 2009 Roma SWI gold: 4×200 m freestyle relay (swam in heats only); 2011 Shanghai SWI gold: 4×200 m freestyle relay
Gary Vandermeulen	CAN	SWM	1988	0–0–0 1991 Perth silver: 4×50 m freestyle relay (swam in heats only) (demonstration event)
Tauna Vandeweghe	USA	SWM	1976	0–1–0 1975 Cali SWI silver: 4×100 m medley relay (swam in heats only)
Federico Vanelli	ITA	OWS	2016	0–0–1 2017 Budapest SWI bronze: 4×1.25 km open water relay
Dániel Varga	HUN	WPO	2008—2016	1–2–0 2005 Montréal WAP silver; 2007 Melbourne WAP silver; 2013 Barcelona WAP gold
Dénes Varga	HUN	WPO	2008—2020	1–2–0 2007 Melbourne WAP silver; 2013 Barcelona WAP gold; 2017 Budapest WAP silver
Tamás Varga	HUN	WPO	2004—2012	1–0–0 2003 Barcelona WAP gold
Zsolt Varga	HUN	WPO	1992—2000	0–1–0 1998 Perth WAP silver
Svetlana Varganova	RUS URS	SWM	1980	1–0–1 1982 Guayaquil SWI gold: 200 m breaststroke, bronze: 4×100 m medley relay
Attila Vári	HUN	WPO	2000—2004	1–2–0 1998 Perth WAP silver; 2003 Barcelona WAP gold; 2005 Montréal WAP silver
Aliaksandr Varlamau	BLR	DIV	2004—2008	0–0–1 1998 Perth DIV bronze: synchronized platform
Darya Vaskina	RUS	SWM	2018	0–0–1 2019 Gwangju SWI bronze: 50 m backstroke
Jesse Vassallo	USA	SWM	1984	2–1–0 1978 West Berlin SWI gold: 200 m backstroke and 400 m medley, silver: 200 m medley
Aleksey Vdovin	RUS EUN	WPO	1992	1–0–0 1982 Guayaquil WAP gold (competed for the Soviet Union)
Dan Veatch	USA	SWM	1988	1–0–0 1986 Madrid SWI gold: 4×100 m medley relay
Mark Veens	NED	SWM	1996—2004	0–1–0 2001 Fukuoka SWI silver: 4×100 m freestyle relay
Marleen Veldhuis	NED	SWM	2004—2012	2–2–4 2005 Montréal SWI silver: 50 m freestyle; 2007 Melbourne SWI silver: 100 m freestyle, bronze: 50 m freestyle and 4×100 m freestyle relay; 2009 Roma SWI gold: 4×100 m freestyle relay, bronze: 50 m freestyle; 2011 Shanghai SWI gold: 4×100 m freestyle relay, bronze: 50 m freestyle
Alessandro Velotto	ITA	WPO	2016—2020	1–0–0 2019 Gwangju WAP gold
Wilma van Velsen	NED	SWM	1980—1984	0–0–1 1982 Guayaquil SWI bronze: 4×100 m freestyle relay
Erik Vendt	USA	SWM	2000—2008	0–1–1 2001 Fukuoka SWI silver: 400 m medley; 2003 Barcelona SWI bronze: 1500 m freestyle
Esmee Vermeulen	NED	SWM	2016	0–0–1 2013 Barcelona SWI bronze: 4×100 m freestyle relay (swam in heats only)
Dávid Verrasztó	HUN	SWM	2012—2020	0–2–0 2015 Kazan SWI silver: 400 m medley; 2017 Budapest SWI silver: 400 m medley
Zoltán Verrasztó	HUN	SWM	1972—1980	1–1–1 1973 Belgrade SWI silver: 200 m backstroke; 1975 Cali SWI gold: 200 m backstroke; 1978 West Berlin SWI bronze: 200 m backstroke
Sebastiaan Verschuren	NED	SWM	2012—2016	0–1–0 2015 Kazan SWI silver: 4×100 m freestyle mixed relay
Mark Versfeld	CAN	SWM	2000	0–1–1 1998 Perth SWI silver: 100 m backstroke, bronze: 200 m backstroke
Annemarie Verstappen	NED	SWM	1984	1–1–4 1982 Guayaquil SWI gold: 200 m freestyle, silver: 100 m freestyle, bronze: 4×100 m freestyle relay; 1986 Madrid SWI bronze: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay
Maicol Verzotto	ITA	DIV	2016	0–0–1 2015 Kazan DIV bronze: synchronized springboard (mixed)
Frano Vićan	CRO	WPO	2000—2012	1–0–0 2007 Melbourne WAP gold
Mirko Vičević	MNE SCG YUG	WPO	1988—1996	2–0–0 1986 Madrid WAP gold (competed for Yugoslavia); 1991 Perth WAP gold (competed for Yugoslavia)
Lorenza Vigarani	ITA	SWM	1988—1996	0–0–1 1994 Roma SWI bronze: 200 m backstroke
Penny Vilagos	CAN	SWA	1992	1–0–0 1982 Guayaquil SYN gold: team
Vicky Vilagos	CAN	SWA	1992	1–0–0 1982 Guayaquil SYN gold: team
Brenda Villa	USA	WPO	2000—2012	3–1–0 2003 Barcelona WAP gold; 2005 Montréal WAP silver; 2007 Melbourne WAP gold; 2009 Rome WAP gold
Balázs Vincze	HUN	WPO	1988—1996	0–1–1 1991 Perth WAP bronze; 1998 Perth WAP silver
Lorenzo Vismara	ITA	SWM	2000—2004	0–1–0 2007 Melbourne SWI silver: 4×100 m freestyle relay (swam in heats only)
Lisa Vitting	GER	SWM	2012	0–0–1 2011 Shanghai SWI bronze: 4×100 m freestyle relay
Angelos Vlachopoulos	GRE	WPO	2016—2020	0–0–1 2015 Kazan WAP bronze
Kirsten Vlieghuis	NED	SWM	1996—2000	0–0–1 1998 Perth SWI bronze: 800 m freestyle
Antonios Vlontakis	GRE	WPO	2000—2008	0–0–1 2005 Montréal WAP bronze
Renate Vogel	GDR	SWM	1972	3–0–0 1973 Belgrade SWI gold: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay
Sandra Völker	GER	SWM	1992—2004	1–3–3 1998 Perth SWI silver: 50 m freestyle and 4×100 m freestyle relay, bronze: 100 m backstroke; 2001 Fukuoka SWI gold: 4×100 m freestyle relay, bronze: 50 m freestyle and 100 m freestyle; 2003 Barcelona SWI silver: 4×100 m freestyle relay
Dmitry Volkov	RUS URS EUN	SWM	1988—1992	0–1–2 1986 Madrid SWI bronze: 100 m breaststroke and bronze: 4×100 m medley relay (competed for the Soviet Union); 1991 Perth SWI silver: 4×100 m medley relay (competed for the Soviet Union)
Yelena Volkova	RUS URS EUN	SWM	1988—1992	1–0–1 1991 Perth SWI gold: 200 m breaststroke (competed for the Soviet Union), bronze: 100 m breaststroke (competed for the Soviet Union)
Dana Vollmer	USA	SWM	2004—2016	4–4–2 2007 Melbourne SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay (swam in heats only) and 4×100 m medley relay (swam in heats only); 2009 Roma SWI silver: 4×200 m freestyle relay, bronze: 200 m freestyle; 2011 Shanghai SWI gold: 100 m butterfly and 4×100 m medley relay, silver: 4×100 m freestyle relay; 2013 Barcelona SWI gold: 4×100 m medley relay, bronze: 100 m butterfly
Roman Volodkov	UKR	DIV	1996—2004	0–1–1 2001 Fukuoka DIV bronze: synchronized platform; 2003 Barcelona DIV silver: synchronized platform
Anna Voloshyna	UKR	SWA	2016	0–1–9 2013 Barcelona SYN bronze: duet Free, team Technical, team Free, and team Free Routine Combination; 2017 Budapest SYN silver: team Free Routine Combination, bronze: solo Technical, solo Free, duet Technical, duet Free, and team Free
Christian vom Lehn	GER	SWM	2010—2016	0–0–1 2011 Shanghai SWI bronze: 200 m breaststroke
Valentina Vorontsova	RUS	WPO	2004—2008	0–0–2 2003 Barcelona WAP bronze; 2007 Melbourne WAP bronze
Manthos Voulgarakis	GRE	WPO	2012	0–0–1 2005 Montréal WAP bronze
Zdeslav Vrdoljak	CRO	WPO	1996—2008	1–0–0 2007 Melbourne WAP gold
Shannon Vreeland	USA	SWM	2012	4–0–1 2013 Barcelona SWI gold: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay (swam in heats only); 2015 Kazan SWI gold: 4×200 m freestyle relay (swam in heats only), bronze: 4×100 m freestyle relay (swam in heats only)
Josip Vrlić	BRA CRO	WPO	2016—2020	0–0–1 2019 Gwangju WAP bronze
Vlada Vujasinović	SRB SCG	WPO	1996—2008	1–1–2 1998 Perth WAP bronze (competed for FR Yugoslavia); 2001 Fukuoka WAP silver (competed for FR Yugoslavia); 2003 Barcelona WAP bronze (competed for Serbia and Montenegro); 2005 Montréal WAP gold (competed for Serbia and Montenegro)
Nenad Vukanić	MNE SCG	WPO	2000	0–1–1 1998 Perth WAP bronze (competed for FR Yugoslavia); 2001 Fukuoka WAP silver (competed for FR Yugoslavia)
Arkady Vyatchanin	RUS	SWM	2004—2012	0–3–1 2003 Barcelona SWI silver: 100 m backstroke and 4×100 m medley relay; 2005 Montréal SWI silver: 4×100 m medley relay; 2007 Melbourne SWI bronze: 4×100 m medley relay
Alyona Vylegzhanina	RUS	WPO	2008	0–0–2 2007 Melbourne WAP bronze; 2009 Rome WAP bronze
Allison Wagner	USA	SWM	1996	0–2–0 1994 Roma SWI silver: 200 m medley and 400 m medley
Janie Wagstaff	USA	SWM	1992	1–0–2 1991 Perth SWI gold: 4×100 m medley relay, bronze: 100 m backstroke and 200 m backstroke
Kelsey Wakefield	AUS	WPO	2016	0–1–0 2013 Barcelona WAP silver
Carolyn Waldo	CAN	SWA	1984—1988	4–0–0 1982 Guayaquil SYN gold: team; 1986 Madrid SYN gold: solo, duet, and team
Chris Walker-Hebborn	GBR	SWM	2012—2016	1–1–0 2015 Kazan SWI gold: 4×100 m medley mixed relay; 2017 Budapest SWI silver: 4×100 m medley relay
Laura Walker	USA	SWM	1988	0–3–0 1986 Madrid SWI silver: 4×100 m freestyle relay (swam in heats only), 4×200 m freestyle relay (swam in heats only), and 4×100 m medley relay (swam in heats only)
Neil Walker	USA	SWM	2000—2004	5–2–0 1998 Perth SWI gold: 4×100 m freestyle relay, silver: 4×100 m medley relay; 2003 Barcelona SWI gold: 4×100 m medley relay (swam in heats only), silver: 4×100 m freestyle relay; 2005 Montréal SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only); 2007 Melbourne SWI gold: 4×100 m freestyle relay
Dan Wallace	GBR	SWM	2016	1–0–0 2015 Kazan SWI gold: 4×200 m freestyle relay
Christer Wallin	SWE	SWM	1988—1996	1–0–0 1994 Roma SWI gold: 4×200 m freestyle relay
Dave Walters	USA	SWM	2008	4–0–1 2007 Melbourne SWI gold: 4×200 m freestyle relay (swam in heats only); 2009 Roma SWI gold: 4×200 m freestyle relay and 4×100 m medley relay; 2011 Shanghai SWI gold: 4×200 m freestyle relay (swam in heats only), bronze: 4×100 m freestyle relay (swam in heats only)
Wang Feng	CHN	DIV	2004—2008	4–1–1 2001 Fukuoka DIV gold: 1 m springboard; 2003 Barcelona DIV silver: synchronized springboard; 2005 Montréal DIV gold: synchronized springboard, bronze: 1 m springboard; 2007 Melbourne DIV gold: synchronized springboard; 2009 Roma DIV gold: synchronized springboard
Wang Hao	CHN	DIV	2012	1–0–0 2011 Shanghai DIV gold: synchronized platform
Wang Kenan	CHN	DIV	2004	1–1–0 2001 Fukuoka DIV gold: synchronized springboard; 2003 Barcelona DIV silver: 1 m springboard
Wang Na	CHN	SWA	2004—2008	0–1–2 2009 Roma SYN silver: team Free Routine Combination, bronze: team Technical and team Free
Wang Shun	CHN	SWM	2012—2020	0–1–4 2011 Shanghai SWI bronze: 4×200 m freestyle relay; 2013 Barcelona SWI bronze: 4×200 m freestyle relay; 2015 Kazan SWI bronze: 200 m medley; 2017 Budapest SWI silver: 4×200 m freestyle relay (swam in heats only), bronze: 200 m medley
Wang Xiaohong	CHN	SWM	1988—1992	0–1–0 1991 Perth SWI silver: 100 m butterfly
Wang Xin	CHN	DIV	2008	2–0–0 2007 Melbourne DIV gold: platform; 2009 Roma DIV gold: synchronized platform
Wang Yi	CHN	WPO	2008—2012	0–1–0 2011 Shanghai WAP silver
Wang Ying	CHN	WPO	2008—2012	0–1–0 2011 Shanghai WAP silver
Lutz Wanja	GDR	SWM	1972—1976	0–1–1 1973 Belgrade SWI silver: 4×100 m medley relay (swam in heats only), bronze: 100 m backstroke
Darren Ward	CAN	SWM	1988—1992	0–0–0 1991 Perth silver: 4×50 m freestyle relay (demonstration event)
Pamela Ware	CAN	DIV	2010—2020	0–1–2 2013 Barcelona DIV bronze: 3 m springboard and synchronized springboard; 2015 Kazan DIV silver: synchronized springboard
Mark Warnecke	GER FRG	SWM	1988—2000	1–0–0 2005 Montréal SWI gold: 50 m breaststroke (competed for Germany)
Ippei Watanabe	JPN	SWM	2014—2016	0–0–2 2017 Budapest SWI bronze: 200 m breaststroke; 2019 Gwangju SWI bronze: 200 m breaststroke
Kanako Watanabe	JPN	SWM	2012—2020	1–1–0 2015 Kazan SWI gold: 200 m breaststroke, silver: 200 m medley
Peter Waterfield	GBR	DIV	2000—2012	0–0–1 2005 Montréal DIV bronze: synchronized platform
Debbie Watson	AUS	WPO	2000	1–0–0 1986 Madrid WAP gold
Josh Watson	AUS	SWM	2000—2004	1–0–0 2001 Fukuoka SWI gold: 4×100 m medley relay (swam in heats only)
Marie Wattel	FRA	SWM	2016—2020	0–0–1 2019 Gwangju SWI bronze: 4×100 m freestyle mixed relay
Mary Wayte	USA	SWM	1984—1988	0–2–0 1986 Madrid SWI silver: 4×200 m freestyle relay and 4×100 m freestyle relay (swam in heats only)
Garrett Weber-Gale	USA	SWM	2008	4–0–1 2005 Montréal SWI gold: 4×100 m freestyle relay (swam in heats only); 2007 Melbourne SWI gold: 4×100 m freestyle relay (swam in heats only); 2009 Roma SWI gold: 4×100 m freestyle relay (swam in heats only); 2011 Shanghai SWI gold: 4×100 m medley relay (swam in heats only), bronze: 4×100 m freestyle relay
Jutta Weber	FRG	SWM	1972—1976	0–0–2 1973 Belgrade SWI bronze: 4×100 m freestyle relay and bronze: 4×100 m medley relay
Rowie Webster	AUS	WPO	2012—2020	0–1–1 2013 Barcelona WAP silver; 2019 Gwangju WAP bronze
Liz Weekes	AUS	WPO	2000	0–0–1 1998 Perth WAP bronze
Ferry Weertman	NED	OWS	2016—2020	1–2–0 2015 Kazan SWI silver: 10 km open water and 5 km open water team; 2017 Budapest SWI gold: 10 km open water
Gudrun Wegner	GDR	SWM	1972	1–0–1 1973 Belgrade SWI gold: 400 m medley, bronze: 800 m freestyle
Birte Weigang	GDR	SWM	1988	0–0–1 1986 Madrid SWI bronze: 200 m butterfly
Ellen van der Weijden-Bast	NED	WPO	2000	0–2–0 1994 Rome WAP silver (competed as Ellen Bast); 1998 Perth WAP silver (competed as Ellen Bast)
Amanda Weir	USA	SWM	2004—2016	2–4–1 2005 Montréal SWI silver: 4×100 m medley relay, bronze: 4×100 m freestyle relay; 2007 Melbourne SWI gold: 4×200 m freestyle relay (swam in heats only), silver: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only); 2011 Shanghai SWI gold: 4×100 m medley relay (swam in heats only), silver: 4×100 m freestyle relay (swam in heats only)
Abbey Weitzeil	USA	SWM	2016—2020	2–1–1 2015 Kazan SWI gold: 4×100 m freestyle mixed relay (swam in heats only), bronze: 4×100 m freestyle relay (swam in heats only); 2019 Gwangju SWI gold: 4×100 m freestyle mixed relay (swam in heats only), silver: 4×100 m freestyle relay
Florian Wellbrock	GER	OWS/SWM	2016—2020	2–0–0 2019 Gwangju SWI gold: 1500 m freestyle and 10 km open water
Andreas Wels	GER	DIV	1996—2004	0–1–2 2003 Barcelona DIV bronze: synchronized springboard; 2005 Montréal DIV silver: synchronized springboard; 2007 Melbourne DIV bronze: synchronized springboard
Matt Welsh	AUS	SWM	2000—2004	5–3–1 1998 Perth SWI gold: 4×100 m medley relay; 2001 Fukuoka SWI gold: 100 m backstroke and 4×100 m medley relay, bronze: 50 m backstroke; 2003 Barcelona SWI gold: 50 m butterfly, silver: 50 m backstroke and 100 m backstroke; 2005 Montréal SWI silver: 50 m backstroke; 2007 Melbourne SWI gold: 4×100 m medley relay
Valérie Welsh	CAN	SWA	2012	0–0–2 2009 Roma SYN bronze: team Free Routine Combination; 2011 Shanghai SYN bronze: team Free Routine Combination
Mike Wenden	AUS	SWM	1968—1972	0–1–1 1973 Belgrade SWI silver: 4×200 m freestyle relay, bronze: 100 m freestyle
Lauren Wenger	USA	WPO	2008—2012	2–1–0 2005 Montréal WAP silver; 2007 Melbourne WAP gold; 2009 Rome WAP gold
Alexandra Wenk	GER	SWM	2012—2016	0–0–1 2015 Kazan SWI bronze: 4×100 m medley mixed relay
Ramona Wenzel	GDR	DIV	1980	0–1–0 1982 Guayaquil DIV silver: platform
Tom Werner	SWE	SWM	1984—1992	1–1–0 1991 Perth SWI silver: 100 m freestyle; 1994 Roma SWI gold: 4×200 m freestyle relay
Tarnee White	AUS	SWM	2000—2008	2–0–0 2001 Fukuoka gold: 4×100 m medley relay (swam in heats only); 2007 Melbourne SWI gold: 4×100 m medley relay (swam in heats only)
Ashley Whitney	USA	SWM	1996	0–1–0 1998 Perth SWI silver: 4×200 m freestyle relay (swam in heats only)
Tracey Wickham	AUS	SWM	1976	2–0–0 1978 West Berlin SWI gold: 400 m freestyle and 800 m freestyle
Per Wikström	SWE	SWM	1980	0–0–1 1982 Guayaquil SWI bronze: 4×100 m freestyle relay
Aschwin Wildeboer	ESP	SWM	2004—2012	0–0–1 2009 Roma SWI bronze: 100 m backstroke
Ben Wildman-Tobriner	USA	SWM	2008	3–0–0 2005 Montréal SWI gold: 4×100 m freestyle relay (swam in heats only); 2007 Melbourne SWI gold: 50 m freestyle and 4×100 m freestyle relay (swam in heats only)
Jordan Wilimovsky	USA	OWS/SWM	2016—2020	1–2–1 2015 Kazan SWI gold: 10 km open water; 2017 Budapest SWI silver: 10 km open water and 4×1.25 km open water relay; 2019 Gwangju SWI bronze: 4×1.25 km open water relay
Tom Wilkens	USA	SWM	2000	0–1–1 2001 Fukuoka SWI silver: 200 m medley, bronze: 400 m medley
David Wilkie	GBR	SWM	1972—1976	3–0–2 1973 Belgrade SWI gold: 200 m breaststroke bronze: 200 m medley; 1975 Cali SWI gold: 100 m breaststroke and 200 m breaststroke, bronze: 4×100 m medley relay
Laura Wilkinson	USA	DIV	2000—2008	1–0–0 2005 Montréal DIV gold: platform
Wendy Lian Williams	USA	DIV	1988	0–0–1 1991 Perth DIV bronze: platform
Jackie Willmott	GBR	SWM	1980	0–1–0 1982 Guayaquil SWI silver: 800 m freestyle
Madi Wilson	AUS	SWM	2010—2020	3–4–3 2015 Kazan SWI gold: 4×100 m freestyle relay (swam in heats only), silver: 100 m backstroke, bronze: 4×100 m medley relay (swam in heats only); 2017 Budapest SWI silver: 4×100 m freestyle relay (swam in heats only), bronze: 4×200 m freestyle relay and 4×200 m freestyle relay; 2019 Gwangju SWI gold: 4×100 m freestyle relay (swam in heats only) and 4×200 m freestyle relay, silver: 4×100 m medley relay (swam in heats only) and 4×100 m freestyle mixed relay (swam in heats only)
Elsie Windes	USA	WPO	2008—2012	2–0–0 2007 Melbourne WAP gold; 2009 Rome WAP gold
Anna Windsor	AUS	SWM	1996—2000	0–0–1 1998 Perth SWI bronze: 4×200 m freestyle relay
Sándor Wladár	HUN	SWM	1980	0–1–0 1982 Guayaquil SWI silver: 200 m backstroke
Jörg Woithe	GDR	SWM	1980	1–0–2 1982 Guayaquil SWI gold: 100 m freestyle, bronze: 200 m freestyle; 1986 Madrid SWI bronze: 4×100 m freestyle relay
Wojciech Wojdak	POL	SWM	2014—2016	0–1–0 2017 Budapest SWI silver: 800 m freestyle
Artur Wojdat	POL	SWM	1988—1992	0–0–2 1991 Perth SWI bronze: 200 m freestyle and 400 m freestyle
Sippy Woodhead	USA	SWM	1984	3–2–0 1978 West Berlin SWI gold: 200 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 400 m freestyle and 800 m freestyle
Danielle Woodhouse	AUS	WPO	2000	0–0–1 1998 Perth WAP bronze
Erin Woodley	CAN	SWA	1996	0–2–0 1994 Roma SYN silver: duet and team
Taryn Woods	AUS	WPO	2000	0–0–1 1998 Perth WAP bronze
Kelsi Worrell	USA	SWM	2016	5–2–1 2017 Budapest SWI gold: 4×100 m freestyle relay, 4×100 m medley relay, 4×100 m freestyle mixed relay (swam in heats only), and 4×100 m medley mixed relay (swam in heats only), bronze: 100 m butterfly; 2019 Gwangju SWI gold: 4×100 m medley relay, silver: 4×100 m freestyle relay and 4×100 m medley mixed relay (swam in heats only) (competed as Kelsi Dahlia)
Marcel Wouda	NED	SWM	1992—2000	1–2–0 1998 Perth SWI gold: 200 m medley, silver: 400 m medley and 4×200 m freestyle relay
Camille Wright	USA	SWM	1976	0–1–1 1975 Cali SWI silver: 4×100 m medley relay, bronze: 100 m butterfly
Melissa Wu	AUS	DIV	2008—2020	0–2–1 2007 Melbourne DIV silver: synchronized platform; 2011 Shanghai DIV silver: synchronized platform; 2015 Kazan DIV bronze: synchronized platform (mixed)
Wu Minxia	CHN	DIV	2004—2016	8–5–1 2001 Fukuoka DIV gold: synchronized springboard, silver: 1 m springboard; 2003 Barcelona DIV gold: synchronized springboard, bronze: 3 m springboard; 2005 Montréal DIV silver: 1 m springboard and 3 m springboard; 2007 Melbourne DIV gold: synchronized springboard, silver: 3 m springboard; 2009 Roma DIV gold: synchronized springboard, silver: 1 m springboard; 2011 Shanghai DIV gold: 3 m springboard and synchronized springboard; 2013 Barcelona DIV gold: synchronized springboard; 2015 Kazan DIV gold: synchronized springboard
Wu Peng	CHN	SWM	2004—2012	0–1–3 2005 Montréal SWI bronze: 200 m butterfly; 2007 Melbourne SWI silver: 200 m butterfly; 2011 Shanghai SWI bronze: 200 m butterfly; 2013 Barcelona SWI bronze: 200 m butterfly
Wu Yanyan	CHN	SWM	1996	1–0–0 1998 Perth SWI gold: 200 m medley
Wu Yiwen	CHN	SWA	2012	0–4–2 2009 Roma SYN silver: team Free Routine Combination, bronze: team Technical and team Free; 2011 Shanghai SYN silver: team Technical, team Free, and team Free Routine Combination
Eric Wunderlich	USA	SWM	1996	2–1–0 1991 Perth SWI gold: 4×100 m medley relay; 1994 Roma SWI gold: 4×100 m medley relay, silver: 200 m breaststroke
Kim Wurzel	USA	SWA	2000	0–0–1 1998 Perth SYN bronze: team
Wendy Wyland	USA	DIV	1984	1–0–1 1982 Guayaquil DIV gold: platform; 1986 Madrid DIV bronze: platform
Xin Xin	CHN	OWS/SWM	2012—2020	1–0–0 2019 Gwangju SWI gold: 10 km open water
Xiong Ni	CHN	DIV	1988—2000	0–1–0 1991 Perth DIV silver: platform
Xu Jiayu	CHN	SWM	2012—2020	2–0–1 2017 Budapest SWI gold: 100 m backstroke, bronze: 4×100 m medley mixed relay; 2019 Gwangju SWI gold: 100 m backstroke
Xu Tianlongzi	CHN	SWM	2008	0–0–1 2007 Melbourne SWI bronze: 4×100 m medley relay
Xu Yanwei	CHN	SWM	2004—2008	0–0–3 2001 Fukuoka SWI bronze: 4×100 m medley relay; 2003 Barcelona SWI bronze: 4×200 m freestyle relay; 2007 Melbourne SWI bronze: 4×100 m medley relay
Takashi Yamamoto	JPN	SWM	1996—2004	0–2–1 2003 Barcelona SWI silver: 200 m butterfly, bronze: 4×100 m medley relay; 2007 Melbourne SWI silver: 4×100 m medley relay
Eri Yamanoi	JPN	SWM	1996	0–0–1 2001 Fukuoka SWI bronze: 4×200 m freestyle relay
Yan Zibei	CHN	SWM	2016—2020	0–0–2 2017 Budapest SWI bronze: 4×100 m medley mixed relay; 2019 Gwangju SWI bronze: 100 m breaststroke
Yang Hao	CHN	DIV	2014	0–1–0 2019 Gwangju DIV silver: platform
Yang Jinghui	CHN	DIV	2004	0–1–0 2005 Montréal DIV silver: synchronized platform
Yang Jun	CHN	WPO	2008—2016	0–1–0 2011 Shanghai WAP silver
Yang Wenyi	CHN	SWM	1988—1992	0–0–0 1991 Perth gold: 50 m backstroke (demonstration event)
Yang Yu	CHN	SWM	2000—2008	2–1–4 2001 Fukuoka SWI silver: 200 m freestyle; 2003 Barcelona SWI gold: 4×100 m medley relay, bronze: 200 m freestyle and 4×200 m freestyle relay; 2005 Montréal SWI bronze: 200 m freestyle and 4×200 m freestyle relay; 2009 Roma SWI gold: 4×200 m freestyle relay
Lea Yanitsas	AUS	WPO	2016—2020	0–0–1 2019 Gwangju WAP bronze
Vadim Yaroshchuk	URS UKR	SWM	1988	0–1–1 1986 Madrid SWI silver: 400 m medley, bronze: 200 m medley
Yury Yatsev	RUS	WPO	2000	0–0–1 2001 Fukuoka WAP bronze
Mariya Yayna	RUS	WPO	2004	0–0–1 2003 Barcelona WAP bronze
Ye Shiwen	CHN	SWM	2012—2016	1–2–0 2011 Shanghai SWI gold: 200 m medley; 2019 Gwangju SWI silver: 200 m medley and 400 m medley
Yuliya Yefimova	ROC RUS	SWM	2008—2020	6–7–4 2009 Roma SWI gold: 50 m breaststroke, silver: 100 m breaststroke; 2011 Shanghai SWI silver: 50 m breaststroke and 200 m breaststroke; 2013 Barcelona SWI gold: 50 m breaststroke and 200 m breaststroke, silver: 100 m breaststroke, bronze: 4×100 m medley relay; 2015 Kazan SWI gold: 100 m breaststroke, bronze: 50 m breaststroke; 2017 Budapest SWI gold: 200 m breaststroke, silver: 50 m breaststroke and 4×100 m medley relay, bronze: 100 m breaststroke; 2019 Gwangju SWI gold: 200 m breaststroke, silver: 100 m breaststroke, bronze: 50 m breaststroke
Roman Yegorov	RUS	SWM	1996	0–0–1 1998 Perth SWI bronze: 4×100 m freestyle relay
Anastasiya Yermakova	RUS	SWA	2004—2008	7–2–0 2001 Fukuoka SYN gold: team, silver: duet; 2003 Barcelona SYN gold: duet, silver: solo; 2005 Montréal SYN gold: duet and team Free Routine Combination; 2007 Melbourne SYN gold: duet Technical, duet Free, and team Free Routine Combination
Aleksandr Yeryshov	RUS	WPO	1996—2004	0–0–2 1994 Rome WAP bronze; 2001 Fukuoka WAP bronze
Nikolay Yevseyev	RUS URS	SWM	1988	0–1–1 1986 Madrid SWI silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay
Sergey Yevstigneyev	RUS	WPO	1996	0–0–1 1994 Rome WAP bronze
Yin Chengxin	CHN	SWA	2016—2020	1–7–0 2015 Kazan SYN silver: team Free and team Free Routine Combination; 2017 Budapest SYN gold: team Free Routine Combination, silver: team Technical and team Free; 2019 Gwangju SYN silver: team Technical, team Free, and team Free Routine Combination
Yoko Yoneda	JPN	SWA	2000—2004	1–3–0 1998 Perth SYN silver: team; 2001 Fukuoka SYN silver: team; 2003 Barcelona SYN gold: team Free Routine Combination, silver: team
Kurumi Yoshida	JPN	SWA	2012—2016	0–0–3 2015 Kazan SYN bronze: team Technical, team Free, and team Free Routine Combination
Katrina Young	USA	DIV	2016—2020	0–0–2 2019 Gwangju DIV bronze: platform and team
Yu Zhuocheng	CHN	DIV	1996	3–0–0 1994 Roma DIV gold: 3 m springboard; 1998 Perth DIV gold: 1 m springboard and synchronized springboard
Yuan Yuan	CHN	SWM	1996	1–1–1 1994 Roma SWI gold: 4×100 m medley relay (swam in heats only), silver: 200 m breaststroke, bronze: 100 m breaststroke
Anna Yuryayeva	RUS	SWA	1996	1–0–0 1998 Perth SYN gold: team
Sergey Zabolotnov	URS UZB	SWM	1988	0–0–2 1986 Madrid SWI bronze: 100 m backstroke and 4×100 m medley relay (swam in heats only)
Nicola Zagame	AUS	WPO	2012—2016	0–1–0 2013 Barcelona WAP silver
Aleksandr Zakharov	RUS URS	WPO	1976	1–0–0 1975 Cali WAP gold
Anton Zakharov	UKR	DIV	2004—2012	0–1–1 2001 Fukuoka DIV bronze: synchronized platform; 2003 Barcelona DIV silver: synchronized platform
Ilya Zakharov	RUS	DIV	2012—2016	1–5–1 2011 Shanghai DIV silver: 3 m springboard and synchronized springboard; 2013 Barcelona DIV silver: synchronized springboard; 2015 Kazan DIV silver: 3 m springboard and synchronized springboard; 2017 Budapest DIV gold: synchronized springboard, bronze: 3 m springboard
Marat Zakirov	RUS	WPO	2000—2004	0–0–1 2001 Fukuoka WAP bronze
Gergő Zalánki	HUN	WPO	2016—2020	0–1–0 2017 Budapest WAP silver
Mohamed El-Zanaty	EGY	OWS	2008	0–0–1 2007 Melbourne SWI bronze: 25 km open water
Emanuela Zanchi	ITA	WPO	2004—2008	0–1–0 2003 Barcelona WAP silver
Gerhard Zandberg	RSA	SWM	2004—2008	1–0–3 2003 Barcelona SWI bronze: 50 m backstroke; 2007 Melbourne SWI gold: 50 m backstroke; 2009 Roma SWI bronze: 50 m backstroke; 2011 Shanghai SWI bronze: 50 m backstroke
Kendra Zanotto	USA	SWA	2004	0–1–1 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team
Krisztina Zantleitner	HUN	WPO	2004—2008	1–0–0 2005 Montréal WAP gold
Zeng Qiliang	CHN	SWM	1996	0–1–0 1998 Perth SWI silver: 100 m breaststroke
Zeng Zhen	CHN	SWA	2016	0–3–0 2015 Kazan SYN silver: team Technical, team Free, and team Free Routine Combination
Steffen Zesner	GDR GER	SWM	1988—1996	2–2–3 1986 Madrid SWI gold: 4×200 m freestyle relay (swam in heats only), bronze: 4×100 m freestyle relay (competed for East Germany); 1991 Perth SWI gold: 4×200 m freestyle relay, silver: 200 m freestyle and 4×100 m freestyle relay (competed for Germany); 1994 Roma SWI bronze: 1500 m freestyle and 4×200 m freestyle relay (competed for Germany)
Zhan Shu	CHN	SWM	2000—2004	1–0–1 2001 Fukuoka SWI bronze: 4×100 m medley relay; 2003 Barcelona SWI gold: 4×100 m medley relay
Zhang Lei	CHN	WPO	2012	0–1–0 2011 Shanghai WAP silver
Zhang Lin	CHN	SWM	2004—2008	1–0–2 2009 Roma SWI gold: 800 m freestyle, bronze: 400 m freestyle; 2011 Shanghai SWI bronze: 4×200 m freestyle relay
Zhang Xiaohuan	CHN	SWA	2000—2008	0–1–2 2009 Roma SYN silver: team Free Routine Combination, bronze: team Technical and team Free
Zhang Yanquan	CHN	DIV	2012	0–0–1 2013 Barcelona DIV bronze: synchronized platform
Zhang Yufei	CHN	SWM	2014—2020	0–0–3 2015 Kazan SWI bronze: 200 m butterfly and 4×200 m freestyle relay; 2017 Budapest SWI bronze: 4×100 m medley mixed relay
Zhang Yuhan	CHN	SWM	2016	0–1–1 2015 Kazan SWI bronze: 4×200 m freestyle relay (swam in heats only); 2017 Budapest SWI silver: 4×200 m freestyle relay
Zhao Jin	CHN	SWM	2012	1–1–0 2009 Roma SWI gold: 4×100 m medley relay; 2011 Shanghai SWI silver: 4×100 m medley relay
Zhao Jing	CHN	SWM	2008—2012	3–0–0 2009 Roma SWI gold: 50 m backstroke; 2011 Shanghai SWI gold: 100 m backstroke; 2013 Barcelona SWI gold: 50 m backstroke
Nina Zhivanevskaya	RUS ESP EUN	SWM	1992—2008	1–1–1 1994 Roma SWI silver: 100 m backstroke, bronze: 4×100 m medley relay (competed for Russia); 2003 Barcelona SWI gold: 50 m backstroke (competed for Spain)
Vladimir Zhmudsky	RUS URS	WPO	1972	0–1–0 1973 Belgrade WAP silver
Zhou Jihong	CHN	DIV	1984	0–0–1 1982 Guayaquil DIV bronze: platform
Zhou Luxin	CHN	DIV	2008	0–1–1 2007 Melbourne DIV silver: platform; 2009 Roma DIV bronze: platform
Zhou Yafei	CHN	SWM	2004—2008	1–1–4 2003 Barcelona SWI gold: 4×100 m medley relay, bronze: 200 m medley and 4×200 m freestyle relay; 2005 Montréal SWI bronze: 4×200 m freestyle relay; 2007 Melbourne SWI bronze: 4×100 m medley relay; 2009 Roma SWI silver: 50 m butterfly
Zhou Yilin	CHN	SWM	2016	0–1–0 1998 DIV Perth silver: 3 m springboard
Zhu Menghui	CHN	SWM	2016—2020	0–0–1 2017 Budapest SWI bronze: 4×100 m medley mixed relay
Zhu Qianwei	CHN	SWM	2008—2012	1–0–1 2009 Roma SWI gold: 4×200 m freestyle relay; 2011 Shanghai SWI bronze: 4×200 m freestyle relay (swam in heats only)
Zhu Yingwen	CHN	SWM	2004—2008	0–0–2 2005 Montréal SWI bronze: 50 m freestyle and 4×200 m freestyle relay
Zhuang Yong	CHN	SWM	1988—1992	1–0–1 1991 Perth SWI gold: 50 m freestyle, bronze: 100 m freestyle
Olena Zhupina	UKR	DIV	1996—2004	2–0–0 1998 Perth DIV gold: platform and synchronized platform
Kate Ziegler	USA	SWM	2008—2012	4–1–1 2005 Montréal SWI gold: 800 m freestyle and 1500 m freestyle; 2007 Melbourne SWI gold: 800 m freestyle and 1500 m freestyle; 2011 Shanghai SWI silver: 1500 m freestyle, bronze: 800 m freestyle
Mark van der Zijden	NED	SWM	1996—2000	0–1–0 1998 Perth SWI silver: 4×200 m freestyle relay
Bengt Zikarsky	GER	SWM	1992—1996	0–1–1 1991 Perth SWI gold: 4×50 m freestyle relay (demonstration event), silver: 4×100 m freestyle relay, bronze: 4×100 m medley relay (swam in heats only)
Kathrin Zimmermann	GDR	SWM	1988	1–1–1 1986 Madrid SWI gold: 4×100 m medley relay, silver: 100 m backstroke, bronze: 200 m backstroke
Predrag Zimonjić	SRB SCG	WPO	1996—2000	0–1–0 2001 Fukuoka WAP silver (competed for FR Yugoslavia)
Irek Zinnurov	RUS	WPO	2000—2004	0–0–1 2001 Fukuoka WAP bronze
Boris Zloković	MNE	WPO	2008—2012	1–0–1 2003 Barcelona WAP bronze (competed for Serbia and Montenegro); 2005 Montréal WAP gold (competed for Serbia and Montenegro)
Galina Zlotnikova	RUS	WPO	2004	0–0–1 2003 Barcelona WAP bronze
Olha Zolotarova (DNS)	UKR	SWA	2016	0–0–2 2013 Barcelona SYN bronze: team Free and team Free Routine Combination
Anastasiya Zubkova	RUS	WPO	2004	0–0–2 2003 Barcelona WAP bronze; 2007 Melbourne WAP bronze
Attila Zubor	HUN	SWM	1996—2004	0–0–2 1994 Roma SWI bronze: 4×100 m medley relay (swam in heats only); 1998 Perth SWI bronze: 4×100 m medley relay
Martijn Zuijdweg	NED	SWM	2000	0–1–0 1998 Perth SWI silver: 4×200 m freestyle relay
Robertas Žulpa	LTU URS	SWM	1980	0–1–0 1982 Guayaquil SWI silver: 200 m breaststroke
Anastasiya Zuyeva-Fesikova	ROC RUS	SWM	2008—2020	1–4–0 2009 Roma SWI silver: 100 m backstroke and 200 m backstroke (competed as Anastasiya Zuyeva); 2011 Shanghai SWI gold: 50 m backstroke, silver: 100 m backstroke (competed as Anastasiya Zuyeva); 2017 Budapest SWI silver: 4×100 m medley relay (competed as Anastasiya Fesikova)
Klaas-Erik Zwering	NED	SWM	2000—2004	0–1–0 2001 Fukuoka SWI silver: 4×100 m freestyle relay