Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Christina Jones |  USA |
SWA | Olympics | 2008 | 1–0–1 2007 Melbourne SYN bronze: team Free Routine Combination; 2015 Kazan SYN gold: duet Technical (mixed) |
| Cullen Jones | USA |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 1988—1992 | 1–0–0 1991 Perth DIV gold: 1 m springboard |
| Dan Jorgensen | USA |
SWM | Olympics | 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 | Olympics | 1988—1992 | 2–2–0 1986 Madrid SYN silver: duet and team; 1991 Perth SYN gold: duet and team |
| Sarah Josephson | USA |
SWA | Olympics | 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 | Olympics | 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 | Olympics | 2004—2008 | 0–0–2 2005 Montréal SWI bronze: 200 m breaststroke; 2009 Roma SWI bronze: 200 m breaststroke |
| Aleksandr Kabanov |  RUS URS |
WPO | Olympics / Coach | 1972—2012 | 2–1–0 1973 Belgrade WAP silver; 1975 Cali WAP gold; 1982 Guayaquil WAP gold |
| Lina Kačiušytė |  LTUURS |
SWM | Olympics | 1980 | 1–0–1 1978 West Berlin SWI gold: 200 m breaststroke, bronze: 4×100 m medley relay (swam in heats only) |
| Irina Kalinina | RUSURS |
DIV | Olympics | 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 | Olympics | 2016—2024 | 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 | Olympics | 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 | Olympics / YOG | 2008—2024 | 1–0–1 2015 Kazan SWI bronze: 1500 m freestyle; 2019 Gwangju SWI gold: 200 m butterfly |
| Andrey Kapralov | RUS |
SWM | Olympics | 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 |  ROCRUS |
WPO | Olympics | 2016—2020 | 0–0–1 2017 Budapest WAP bronze |
| Ron Karnaugh | USA |
SWM | Olympics | 1992 | 0–0–1 1998 Perth SWI bronze: 200 m medley |
| Anna Karnaukh | ROCRUS |
WPO | Olympics | 2012—2020 | 0–0–2 2011 Shanghai WAP bronze; 2017 Budapest WAP bronze |
| Tamás Kásás | HUN |
WPO | Olympics | 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 | Olympics / Coach | 1972—1988 | 1–0–0 1973 Belgrade WAP gold |
| Orsolya Kasó | HUN |
WPO | Olympics | 2016 | 0–0–1 2013 Barcelona WAP bronze |
| Antti Kasvio |  FIN |
SWM | Olympics | 1992—1996 | 1–1–0 1994 Roma SWI gold: 200 m freestyle, silver: 400 m freestyle |
| Miho Kawabe |  JPN |
SWA | Olympics | 1996 | 0–1–0 1998 Perth SYN silver: team |
| Akiko Kawase | JPN |
SWA | Olympics | 1996 | 0–0–1 1994 Roma SYN bronze: team |
| Naoko Kawashima | JPN |
SWA | Olympics | 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 | Olympics | 2012—2020 | 0–2–0 2013 Barcelona SWI silver: 200 m backstroke; 2015 Kazan SWI silver: 200 m backstroke |
| Maddison Keeney | AUS |
DIV | Olympics | 2016—2024 | 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 | Olympics | 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 | Olympics | 2004 | 0–1–0 2007 Melbourne SWI silver: 25 km open water |
| Klete Keller | USA |
SWM | Olympics | 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 | Olympics | 1976—1988 | 0–0–1 1978 West Berlin SWI bronze: 100 m breaststroke (competed as Maggie Kelly) |
| Rachael Kelly | GBR |
SWM | YOG | 2010 | 1–0–0 2015 Kazan SWI gold: 4×100 m medley mixed relay (swam in heats only) |
| György Kenéz | HUN |
WPO | Olympics | 1976 | 0–2–0 1978 West Berlin WAP silver; 1982 Guayaquil WAP silver |
| Johan Kenkhuis | NED |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 2012—2024 | 0–0–1 2013 Barcelona WAP bronze |
| Elvira Khasyanova | RUS |
SWA | Olympics | 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 |
| Hanna Khlistunova |  UKR |
SWM | Olympics | 2008 | 0–0–1 2007 Melbourne SWI bronze: 100 m breaststroke |
| Leonid Khokhlov | RUS |
SWM | Olympics | 2000 | 0–0–1 2001 Fukuoka SWI bronze: 4×100 m medley relay (swam in heats only) |
| Kerstin Kielgaß | GER |
SWM | Olympics | 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 | Olympics | 1968—1976 | 0–0–1 1982 Guayaquil WAP bronze |
| Albin Killat | GERFRG |
DIV | Olympics | 1984—1992 | 0–0–1 1991 Perth DIV bronze: 3 m springboard (competed for Germany) |
| Becky Kim | USA |
SWA | Olympics | 2008 | 0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination |
| Kim Kuk-Hyang |  PRK |
DIV | Olympics | 2016 | 1–1–1 2015 Kazan DIV gold: platform, bronze: synchronized platform; 2017 Budapest DIV silver: synchronized platform |
| Kim Mi-Rae | PRK |
DIV | Olympics / Closing Flagbearer | 2016—2024 | 0–1–1 2017 Budapest DIV silver: synchronized platform, bronze: synchronized platform (mixed) |
| Kim Su-Ji |  KOR |
DIV | Olympics | 2012—2024 | 0–0–1 2019 Gwangju DIV bronze: 1 m springboard |
| Bruce Kimball | USA |
DIV | Olympics | 1984 | 0–0–2 1982 Guayaquil DIV bronze: platform; 1986 Madrid DIV bronze: platform |
| Saeko Kimura | JPN |
SWA | Olympics | 1984 | 0–0–1 1982 Guayaquil SYN bronze: team |
| Lilly King | USA |
SWM | Olympics | 2016—2024 | 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 | Olympics | 2000 | 1–0–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay |
| Tara Kirk | USA |
SWM | Olympics | 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 | Olympics | 2008—2016 | 0–1–0 2007 Melbourne WAP silver |
| Gergő Kis | HUN |
SWM | Olympics | 2004—2016 | 0–0–2 2011 Shanghai SWI bronze: 800 m freestyle and 1500 m freestyle |
| Mariya Kiselyova | RUS |
SWA | Olympics | 1996—2004 | 2–0–0 1998 Perth SYN gold: team; 2003 Barcelona SYN gold: team |
| Yuri Kisil |  CAN |
SWM | Olympics | 2016—2024 | 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 | Olympics | 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 | Olympics | 1980 | 0–1–0 1982 Guayaquil WAP silver |
| Dóra Kisteleki | HUN |
WPO | Olympics | 2004—2008 | 1–0–1 2005 Montréal WAP gold; 2013 Barcelona WAP bronze |
| Kosuke Kitajima | JPN |
SWM | Olympics / Closing Flagbearer | 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 | Olympics | 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 | Olympics / Opening Flagbearer | 1996—2008 | 0–0–1 2005 Montréal SWI bronze: 50 m freestyle |
| Paula Klamburg |  ESP |
SWA | Olympics | 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 |  BLRURS |
WPO | Olympics | 1976 | 1–0–0 1975 Cali WAP gold |
| Ina Kleber |  GDR |
SWM | Olympics | 1980 | 0–1–0 1982 Guayaquil SWI silver: 100 m backstroke |
| Sascha Klein | GER |
DIV | Olympics | 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 | Olympics | 2016 | 0–1–0 2013 Barcelona WAP silver |
| Michael Klim | AUS |
SWM | Olympics | 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 | Olympics | 1984 | 0–0–1 1978 West Berlin SWI bronze: 4×100 m freestyle relay (swam in heats only) |
| Yana Klochkova | UKR |
SWM | Olympics / Opening Flagbearer | 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 | Olympics | 1972—1976 | 1–1–1 1973 Belgrade DIV gold: platform, silver: 3 m springboard; 1975 Cali DIV bronze: platform |
| Bronwen Knox | AUS |
WPO | Olympics | 2008—2020 | 0–2–1 2007 Melbourne WAP silver; 2013 Barcelona WAP silver; 2019 Gwangju WAP bronze |
| Emma Knox | AUS |
WPO | Olympics | 2004—2008 | 0–1–0 2007 Melbourne WAP silver |
| Chisa Kobayashi | JPN |
SWA | Olympics | 2012 | 0–1–0 2007 Melbourne SYN silver: team Technical |
| Hiromi Kobayashi | JPN |
SWA | Olympics | 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 | Olympics | 2012—2020 | 1–1–0 2013 Barcelona SWI silver: 200 m breaststroke; 2015 Kazan SWI gold: 200 m breaststroke |
| Junya Koga | JPN |
SWM | Olympics | 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 | Olympics | 1972—1976 | 1–0–0 1973 Belgrade DIV gold: 3 m springboard |
| Sarah Köhler | GER |
SWM | Olympics | 2016—2020 | 1–1–0 2019 Gwangju SWI gold: 4×1.25 km open water relay, silver: 1500 m freestyle |
| Svetlana Kolesnichenko | ROCRUS |
SWA | Olympics | 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 | ROCRUS |
SWM | Olympics / YOG / Opening Flagbearer | 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) |
| Christodoulos Kolomvos |  GRE |
WPO | Olympics | 2016—2020 | 0–0–1 2015 Kazan WAP bronze |
| Stanislava Komarova | RUS |
SWM | Olympics | 2004—2008 | 0–1–1 2001 Fukuoka SWI silver: 200 m backstroke; 2003 Barcelona SWI bronze: 200 m backstroke |
| Rachel Komisarz | USA |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 1968—1976 | 1–1–0 1973 Belgrade WAP gold; 1975 Cali WAP silver |
| Sofya Konukh | RUS |
WPO | Olympics | 2000—2012 | 0–0–4 2003 Barcelona WAP bronze; 2007 Melbourne WAP bronze; 2009 Roma WAP bronze; 2011 Shanghai WAP bronze |
| Sergey Koplyakov | BLRURS |
SWM | Olympics | 1976—1980 | 0–1–1 1978 West Berlin SWI silver: 4×200 m freestyle relay, bronze: 200 m freestyle |
| Darya Korobova | RUS |
SWA | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics / Opening Flagbearer | 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 | Olympics | 2016 | 0–1–0 2017 Budapest SWI silver: 200 m breaststroke |
| Zoltán Kósz | HUN |
WPO | Olympics | 1988—2000 | 0–1–0 1998 Perth WAP silver |
| Mikako Kotani | JPN |
SWA | Olympics / Opening Flagbearer | 1988—1992 | 0–1–3 1986 Madrid SYN bronze: duet and team; 1991 Perth SYN silver: duet, bronze: solo |
| Sergey Kotenko |  KAZURS |
WPO | Olympics | 1976—1988 | 1–0–1 1982 Guayaquil WAP gold; 1986 Madrid WAP bronze |
| Rosemarie Kother-Gabriel | GDR |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 2012 | 0–0–3 2007 Melbourne WAP bronze; 2009 Roma WAP bronze; 2011 Shanghai WAP bronze |
| Kristy Kowal | USA |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 1992—2004 | 0–0–2 1994 Roma WAP bronze (competed for Russia); 2001 Fukuoka WAP bronze (competed for Russia) |
| Anna Kozlova | RUSEUNUSA |
SWA | Olympics | 1992—2004 | 0–1–1 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team (competed for the United States) |
| Dominik Kozma | HUN |
SWM | Olympics | 2008—2020 | 0–0–1 2017 Budapest SWI bronze: 4×100 m freestyle relay |
| Gordan Kožulj |  CRO |
SWM | Olympics | 1996—2008 | 0–1–0 2003 Barcelona SWI silver: 200 m backstroke |
| Ivan Krapić | CRO |
WPO | Olympics | 2016 | 1–0–0 2017 Budapest WAP gold |
| Aleksandr Krasnykh | ROCRUS |
SWM | Olympics | 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 | URSUKR |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 1980—1984 | 1–0–0 1986 Madrid WAP gold |
| Vladimir Krivtsov |  AZEURS |
SWM | Olympics | 1972 | 0–1–0 1973 Belgrade SWI silver: 4×100 m freestyle relay |
| Ranomi Kromowidjojo | NED |
SWM | Olympics / Closing Flagbearer | 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 | URSUKR |
SWM | Olympics | 1980 | 0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay |
| Jens Kruppa | GER |
SWM | Olympics | 2000—2004 | 0–1–0 2001 Fukuoka SWI silver: 4×100 m medley relay |
| Kelly Kryczka | CAN |
SWA | Olympics | 1984 | 2–1–0 1982 Guayaquil SYN gold: duet and team, silver: solo |
| Andrey Krylov | RUSURS |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 1992—1996 | 0–1–0 1998 Perth DIV silver: synchronized platform |
| Karin Kuipers | NED |
WPO | Olympics | 2000 | 1–2–0 1991 Perth WAP gold; 1994 Roma WAP silver; 1998 Perth WAP silver |
| Ariana Kukors | USA |
SWM | Olympics | 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 | CAN |
SWA | Non-starter | 1996 | 0–1–0 1994 Roma SYN silver: team |
| Vladislav Kulikov | RUSEUN |
SWM | Olympics | 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 | Olympics / Non-starter | 2000—2004 | 0–0–1 2003 Barcelona WAP bronze |
| Péter Kuna | HUN |
WPO | Olympics | 1988—1996 | 0–0–1 1991 Perth WAP bronze |
| Aljoša Kunac | CRO |
WPO | Olympics | 2008 | 1–0–0 2007 Melbourne WAP gold |
| László Kuncz | HUN |
WPO | Olympics | 1980 | 0–1–0 1982 Guayaquil WAP silver |
| Walter Kusch | FRG |
SWM | Olympics | 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 | Olympics | 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 | RUSURS |
SWM | Olympics | 1980 | 0–1–0 1982 Guayaquil SWI silver: 4×100 m medley relay (swam in heats only) |
| Yevgeny Kuznetsov | ROCRUS |
DIV | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 2004 | 0–0–2 2001 Fukuoka WAP bronze; 2005 Montréal WAP bronze |
| Giorgio Lamberti |  ITA |
SWM | Olympics | 1988—1992 | 1–0–2 1991 Perth SWI gold: 200 m freestyle, bronze: 100 m freestyle and 4×200 m freestyle relay |
| Ève Lamoureux | CAN |
SWA | Olympics | 2008 | 0–0–1 2009 Roma SYN bronze: team Free Routine Combination |
| Oliver Lampe | GER |
SWM | Olympics | 1996 | 0–0–1 1994 Roma SWI bronze: 4×200 m freestyle relay |
| Werner Lampe | FRG |
SWM | Olympics | 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 | Olympics | 1992 | 0–1–0 1994 Roma DIV silver: 1 m springboard |
| Brent Lang | USA |
SWM | Olympics | 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 | Olympics | 1976—1984 | 0–1–0 1975 Cali SWI silver: 4×100 m medley relay (swam in heats only) |
| Colleen Lanné | USA |
SWM | Olympics | 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 | Olympics | 2004 | 1–1–0 2003 Barcelona DIV gold: synchronized platform, silver: platform |
| Georgia Lara | GRE |
WPO | Olympics | 2004—2008 | 1–0–0 2011 Shanghai WAP gold |
| Mitch Larkin | AUS |
SWM | Olympics | 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 | Olympics | 1996 | 0–1–0 1991 Perth SYN silver: team |
| Karin Larsen | CAN |
SWA | Olympics | 1988 | 1–0–0 1986 Madrid SYN gold: team |
| Breeja Larson | USA |
SWM | Olympics | 2012 | 1–0–0 2013 Barcelona SWI gold: 4×100 m medley relay (swam in heats only) |
| David Larson | USA |
SWM | Olympics | 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 | Olympics | 1976 | 0–0–1 1978 West Berlin SWI bronze: 4×100 m freestyle relay |
| Gunnar Larsson | SWE |
SWM | Olympics | 1968—1972 | 1–0–0 1973 Belgrade SWI gold: 200 m medley |
| Irina Lashko | AUSRUSURSEUN |
DIV | Olympics | 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 | Olympics | 2012—2024 | 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 | Olympics | 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 | Olympics | 2012 | 0–1–1 2013 Barcelona SWI bronze: 200 m breaststroke; 2015 Kazan SWI silver: 200 m breaststroke |
| Mylène Lazare | FRA |
SWM | Olympics | 2012 | 0–0–1 2013 Barcelona SWI bronze: 4×200 m freestyle relay |
| Chad le Clos |  RSA |
SWM | Olympics / YOG / Opening Flagbearer | 2010—2024 | 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 | Olympics | 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 | Olympics | 1984 | 1–0–0 1982 Guayaquil SWI gold: 4×100 m freestyle relay |
| Stéphanie Leclair | CAN |
SWA | Olympics | 2012 | 0–0–2 2009 Roma SYN bronze: team Free Routine Combination; 2011 Shanghai SYN bronze: team Free Routine Combination |
| Katie Ledecky | USA |
SWM | Olympics / Closing Flagbearer | 2012—2024 | 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 | Olympics | 2000 | 1–0–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay |
| David Leigh | GBR |
SWM | Olympics | 1976 | 0–0–1 1975 Cali SWI bronze: 100 m breaststroke |
| Ingrid Leijendekker | NED |
WPO | Olympics | 2000 | 0–2–0 1994 Roma WAP silver; 1998 Perth WAP silver |
| Paula Leitón | ESP |
WPO | Olympics | 2016—2024 | 0–2–0 2017 Budapest WAP silver; 2019 Gwangju WAP silver |
| Libby Lenton-Trickett | AUS |
SWM | Olympics | 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 | Olympics | 1992—1996 | 0–1–0 1991 Perth DIV silver: 1 m springboard |
| Leong Mun Yee |  MAS |
DIV | Olympics | 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 | Olympics | 2000—2004 | 0–0–2 2001 Fukuoka SYN bronze: duet and team |
| Amaury Leveaux | FRA |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics / YOG | 2014—2016 | 0–0–1 2017 Budapest SWI bronze: 4×100 m medley mixed relay (swam in heats only) |
| Li Hongping | CHN |
DIV | Olympics | 1984 | 0–0–1 1986 Madrid DIV bronze: 3 m springboard |
| Li Kongzheng | CHN |
DIV | Olympics | 1984—1988 | 0–1–0 1986 Madrid DIV silver: platform |
| Li Na | CHN |
DIV | Olympics | 2000 | 0–0–1 2003 Barcelona DIV bronze: platform |
| Li Ting | CHN |
DIV | Olympics | 2004 | 2–0–0 2003 Barcelona DIV gold: synchronized platform; 2005 Montréal DIV gold: synchronized springboard |
| Li Xiaolu | CHN |
SWA | Olympics | 2016 | 0–3–0 2015 Kazan SYN silver: team Technical, team Free, and team Free Routine Combination |
| Li Xuanxu | CHN |
SWM | Olympics | 2008—2012 | 0–0–1 2011 Shanghai SWI bronze: 1500 m freestyle |
| Li Yihua | CHN |
DIV | Olympics | 1984 | 0–1–0 1986 Madrid DIV silver: 3 m springboard |
| Li Yunqi | CHN |
SWM | Olympics | 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 | Olympics | 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 | Olympics / YOG | 2014—2016 | 0–0–1 2017 Budapest SWI bronze: 4×100 m medley mixed relay (swam in heats only) |
| Lian Junjie | CHN |
DIV | Olympics / YOG | 2018—2024 | 2–0–0 2017 Budapest DIV gold: synchronized platform (mixed); 2019 Gwangju DIV gold: synchronized platform (mixed) |
| Liang Xinping | CHN |
SWA | Olympics | 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 | Olympics | 1996—2000 | 0–0–1 1998 Perth SYN bronze: duet |
| Josefin Lillhage | SWE |
SWM | Olympics | 1996—2008 | 0–0–1 2005 Montréal SWI bronze: 200 m freestyle |
| Felipe Lima |  BRA |
SWM | Olympics | 2012—2020 | 0–1–1 2013 Barcelona SWI bronze: 100 m breaststroke; 2019 Gwangju SWI silver: 50 m breaststroke |
| Marianne Limpert | CAN |
SWM | Olympics | 1992—2000 | 0–0–0 1991 Perth silver: 4×50 m freestyle relay (demonstration event) |
| Lin Li | CHN |
SWM | Olympics | 1988—1996 | 2–0–0 1991 Perth SWI gold: 200 m medley and 400 m medley |
| Lin Shan | CHN |
DIV | YOG | 2018 | 1–0–0 2019 Gwangju DIV gold: team |
| Lin Yue | CHN |
DIV | Olympics | 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 | Olympics | 2012—2016 | 0–1–0 2013 Barcelona WAP silver |
| Kim Linehan | USA |
SWM | Olympics | 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 | Olympics | 1976 | 0–1–1 1975 Cali SWI silver: 400 m medley, bronze: 200 m breaststroke |
