Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Angelika Grieser |  FRG |
SWM | Olympics | 1976 | 0–0–1 1973 Belgrade SWI bronze: 4×100 m medley relay |
| Aris Grigoriadis |  GRE |
SWM | Olympics | 2004—2012 | 1–0–0 2005 Montréal SWI gold: 50 m backstroke |
| Martina Grimaldi |  ITA |
OWS | Olympics | 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 | Olympics | 1980 | 0–0–1 1978 West Berlin SWI bronze: 4×100 m medley relay (swam in heats only) |
| Yevgeny Grishin | RUSURS |
WPO | Olympics | 1980—1988 | 0–0–1 1986 Madrid WAP bronze |
| Igor Grivennikov | RUSURS |
SWM | Olympics | 1972 | 0–1–0 1973 Belgrade SWI silver: 4×100 m freestyle relay |
| Mariya Gromova | RUS |
SWA | Olympics | 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 | Olympics | 2000—2008 | 0–0–1 2007 Melbourne SWI bronze: 4×100 m freestyle relay (swam in heats only) |
| Michael Groß | FRG |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 2016 | 0–0–1 2015 Kazan SWI bronze: 4×100 m medley relay (swam in heats only) |
| Gu Xiao |  CHN |
SWA | Olympics | 2016 | 0–3–0 2015 Kazan SYN silver: team Technical, team Free, and team Free Routine Combination |
| Marcello Guarducci | ITA |
SWM | Olympics | 1972—1984 | 0–0–1 1975 Cali SWI bronze: 4×100 m freestyle relay |
| Marieke Guehrer | AUS |
SWM | Olympics | 2004 | 1–0–1 2009 Roma SWI gold: 50 m butterfly, bronze: 4×100 m freestyle relay |
| José Antonio Guerra |  CUB |
DIV | Olympics | 2000—2012 | 0–1–1 2005 Montréal DIV silver: platform; 2009 Roma DIV bronze: synchronized platform |
| Guo Jingjing | CHN |
DIV | Olympics | 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 | Olympics | 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 | Olympics | 2000 | 0–0–1 1998 Perth WAP bronze |
| Károly Güttler |  HUN |
SWM | Olympics | 1988—2000 | 0–1–1 1994 Roma SWI silver: 100 m breaststroke, bronze: 200 m breaststroke |
| James Guy |  GBR |
SWM | Olympics | 2016—2024 | 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 | Olympics | 1968—1972 | 0–0–1 1973 Belgrade SWI bronze: 200 m backstroke |
| Kate Gynther | AUS |
WPO | Olympics | 2004—2012 | 0–1–0 2007 Melbourne WAP silver |
| Eva Gysling |  SUI |
SWM | Olympics | 1984—1992 | 0–0–0 1991 Perth bronze: 50 m backstroke (demonstration event) |
| Dániel Gyurta | HUN |
SWM | Olympics / Administrator | 2004—2024 | 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 | Olympics | 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 | Olympics | 1976 | 1–0–1 1978 West Berlin SWI gold: 4×200 m freestyle relay, bronze: 1500 m freestyle |
| Grant Hackett | AUS |
SWM | Olympics | 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 | Olympics | 2012 | 0–1–0 2015 Kazan SWI silver: 4×100 m medley relay |
| Kosuke Hagino |  JPN |
SWM | Olympics | 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 | Olympics | 2000 | 0–0–1 2001 Fukuoka SWI bronze: 4×200 m freestyle relay |
| Nicole Haislett | USA |
SWM | Olympics | 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 | Olympics | 2012—2016 | 0–0–3 2015 Kazan SYN bronze: team Technical, team Free, and team Free Routine Combination |
| Gary Hall, Jr. | USA |
SWM | Olympics | 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 | Olympics | 1984—1992 | 0–1–0 1986 Madrid SWI silver: 50 m freestyle |
| Fran Halsall | GBR |
SWM | Olympics | 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 | Olympics | 1984 | 2–0–0 1982 Guayaquil SYN gold: duet and team |
| Brendan Hansen | USA |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 2016—2024 | 0–1–0 2015 Kazan SWI silver: 4×100 m medley relay |
| Hao Yun | CHN |
SWM | Olympics | 2012 | 0–0–1 2013 Barcelona SWI bronze: 4×200 m freestyle relay |
| Saho Harada | JPN |
SWA | Olympics | 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 | Olympics | 2012—2024 | 1–1–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver |
| Sarah Hardcastle | GBR |
SWM | Olympics | 1984—1996 | 0–0–1 1986 Madrid SWI bronze: 400 m freestyle |
| Jessica Hardy | USA |
SWM | Olympics | 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 | Olympics | 1996 | 0–1–0 1998 Perth SWI silver: 4×100 m medley relay (swam in heats only) |
| András Hargitay | HUN |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 2000—2004 | 1–0–0 2001 Fukuoka SWI gold: 4×100 m medley relay |
| Jo Harshbarger | USA |
SWM | Olympics | 1972 | 0–1–0 1973 Belgrade SWI silver: 800 m freestyle |
| Sara Harstick | GER |
SWM | Olympics | 2000—2004 | 0–1–0 2001 Fukuoka SWI silver: 4×200 m freestyle relay |
| Blythe Hartley | CAN |
DIV | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics / Opening Flagbearer | 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 | JPN |
SWA | Non-starter | 2016 | 0–0–2 2015 Kazan SYN bronze: team Free and team Free Routine Combination |
| Brent Hayden | CAN |
SWM | Olympics | 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 | Olympics | 2008 | 2–0–0 2007 Melbourne WAP gold; 2009 Roma WAP gold |
| He Chao | CHN |
DIV | Olympics | 2016 | 1–1–0 2015 Kazan DIV gold: 3 m springboard; 2017 Budapest DIV silver: 1 m springboard |
| He Chong | CHN |
DIV | Olympics | 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 | Olympics | 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 | Olympics | 2008—2012 | 0–1–0 2011 Shanghai WAP silver |
| He Zi | CHN |
DIV | Olympics | 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 | Olympics | 1984 | 1–0–1 1986 Madrid SWI gold: 4×100 m freestyle relay, bronze: 4×200 m freestyle relay |
| Kathy Heddy | USA |
SWM | Olympics | 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 | Olympics | 1988—1996 | 1–0–0 1991 Perth SWI gold: 4×100 m freestyle relay |
| Femke Heemskerk | NED |
SWM | Olympics | 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 | Olympics | 2004 | 0–2–0 2003 Barcelona SWI silver: 5 km open water and 10 km open water |
| Mathew Helm | AUS |
DIV | Olympics | 2000—2008 | 1–1–1 2001 Fukuoka DIV bronze: platform; 2003 Barcelona DIV gold: synchronized platform, silver: platform |
| Claudia Hempel | GDR |
SWM | Olympics | 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 | GDRGER |
DIV | Olympics | 1988—2000 | 0–1–1 1998 Perth DIV silver: synchronized platform, bronze: platform (competed for Germany) |
| John Hencken | USA |
SWM | Olympics | 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 | Olympics | 1996 | 2–0–0 1991 Perth SWI gold: 4×100 m medley relay; 1994 Roma SWI gold: 4×100 m medley relay |
| Mélanie Henique |  FRA |
SWM | Olympics | 2016—2024 | 0–0–1 2011 Shanghai SWI bronze: 50 m butterfly |
| Jana Henke | GER |
SWM | Olympics | 1992—2004 | 0–0–2 1991 Perth SWI bronze: 800 m freestyle; 2003 Barcelona SWI bronze: 1500 m freestyle |
| Rainer Henkel | FRG |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 2016—2020 | 0–1–0 2017 Budapest SWI silver: 200 m butterfly |
| Aliaksandra Herasimenia |  BLR |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 1984—1988 | 0–0–1 1986 Madrid SYN bronze: solo |
| Gabriel Hernández | ESP |
WPO | Olympics / Coach | 2000—2016 | 1–1–0 1994 Roma WAP silver; 2001 Fukuoka WAP gold |
| Melany Hernández |  MEX |
DIV | Olympics | 2016 | 0–0–1 2019 Gwangju DIV bronze: synchronized springboard |
| Patricia Herrera | ESP |
WPO | Olympics | 2016 | 1–0–0 2013 Barcelona WAP gold |
| Amy Hetzel | AUS |
WPO | Olympics | 2008 | 0–1–0 2007 Melbourne WAP silver |
| Émilie Heymans | CAN |
DIV | Olympics | 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 | Olympics | 2000 | 1–2–0 1991 Perth WAP gold; 1994 Roma WAP silver; 1998 Perth WAP silver |
| Yvette Higgins | AUS |
WPO | Olympics | 2000 | 0–0–1 1998 Perth WAP bronze |
| Nađa Higl |  SRB |
SWM | Olympics | 2008—2012 | 1–0–0 2009 Roma SWI gold: 200 m breaststroke |
| Allison Higson | CAN |
SWM | Olympics | 1988—1992 | 0–0–1 1986 Madrid SWI bronze: 200 m breaststroke |
| Sami Hill | USA |
WPO | Olympics | 2016 | 1–0–0 2015 Kazan WAP gold |
| Igor Hinić |  CRO |
WPO | Olympics | 1996—2012 | 1–0–1 2007 Melbourne WAP gold; 2009 Roma WAP bronze |
| Lars Hinneburg | GDR |
SWM | Olympics | 1988 | 1–0–0 1986 Madrid SWI gold: 4×200 m freestyle relay |
| Jaime Hipp | USA |
WPO | Olympics | 2008 | 1–1–0 2005 Montréal WAP silver; 2007 Melbourne WAP gold |
| Mike Hixon | USA |
DIV | Olympics / YOG | 2010—2020 | 0–0–1 2015 Kazan DIV bronze: 1 m springboard |
| Ilona Hlaváčková |  CZE |
SWM | Olympics | 2000—2004 | 0–1–0 2003 Barcelona SWI silver: 50 m backstroke |
| Chad Ho |  RSA |
OWS | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 1972—1980 | 0–2–1 1973 Belgrade DIV bronze: platform; 1978 West Berlin DIV silver: 3 m springboard and platform |
| Jörg Hoffmann | GDRGER |
SWM | Olympics | 1988—1996 | 2–0–0 1991 Perth SWI gold: 400 m freestyle and 1500 m freestyle (competed for Germany) |
| Frank Hoffmeister | FRG |
SWM | Olympics | 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 | Olympics | 1984 | 0–1–0 1978 West Berlin SWI silver: 200 m butterfly |
| Steve Holland | AUS |
SWM | Olympics | 1976 | 1–0–0 1973 Belgrade SWI gold: 1500 m freestyle |
| Anders Holmertz | SWE |
SWM | Olympics | 1984—1996 | 1–1–0 1994 Roma SWI gold: 4×200 m freestyle relay, silver: 200 m freestyle |
| Per Holmertz | SWE |
SWM | Olympics | 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 | Olympics | 2016—2020 | 0–0–1 2017 Budapest SWI bronze: 4×100 m freestyle relay |
| Ewout Holst | NED |
SWM | Olympics | 2000 | 0–1–0 2001 Fukuoka SWI silver: 4×100 m freestyle relay (swam in heats only) |
| Pieter van den Hoogenband | NED |
SWM | Olympics | 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 | Olympics | 1976 | 1–0–0 1978 West Berlin SWI gold: 4×100 m freestyle relay (swam in heats only) |
| Kate Hooven | USA |
SWA | Olympics | 2008 | 0–0–1 2007 Melbourne SYN bronze: team Free Routine Combination |
| Rainer Hoppe | FRG |
WPO | Olympics | 1984 | 0–0–1 1982 Guayaquil WAP bronze |
| Yuya Horihata | JPN |
SWM | Olympics | 2012 | 0–0–1 2011 Shanghai SWI bronze: 400 m medley |
| György Horkai | HUN |
WPO | Olympics / Coach | 1976—1996 | 0–3–0 1975 Cali WAP silver; 1978 West Berlin WAP silver; 1982 Guayaquil WAP silver |
| Waneek Horn-Miller | CAN |
WPO | Olympics | 2000 | 0–0–1 2001 Fukuoka WAP bronze |
| Silke Hörner | GDR |
SWM | Olympics | 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 | Olympics | 2012—2016 | 0–1–1 2011 Shanghai DIV bronze: synchronized platform; 2015 Kazan DIV silver: team |
| Mack Horton | AUS |
SWM | Olympics | 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 | Olympics | 2008 | 1–0–0 2005 Montréal WAP gold |
| Péter Horváth | HUN |
SWM | Olympics | 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 | Olympics | 2008—2016 | 1–0–0 2015 Kazan SWI gold: 200 m butterfly |
| Norbert Hosnyánszky | HUN |
WPO | Olympics | 2008—2020 | 1–1–0 2013 Barcelona WAP gold; 2017 Budapest WAP silver |
| Katinka Hosszú | HUN |
SWM | Olympics / Closing Flagbearer | 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 | Olympics | 2012 | 1–0–0 2013 Barcelona SWI gold: 4×200 m freestyle relay |
| Andriy Hovorov | UKR |
SWM | Olympics / YOG | 2010—2016 | 0–0–1 2017 Budapest SWI bronze: 50 m butterfly |
| Olena Hrechykhina | UKR |
SWA | Olympics | 2016 | 0–0–3 2013 Barcelona SYN bronze: team Technical, team Free, and team Free Routine Combination |
| Hu Jia | CHN |
DIV | Olympics | 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 | Olympics | 2012 | 0–1–0 2011 Shanghai DIV silver: platform |
| Huang Xuechen | CHN |
SWA | Olympics | 2008—2020 | 0–16–2 2009 Roma 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 | Olympics | 2008 | 0–0–1 2007 Melbourne SWI bronze: 4×200 m freestyle relay |
| Geoff Huegill | AUS |
SWM | Olympics | 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 | GDRGER |
SWM | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 1984 | 0–1–0 1978 West Berlin SWI silver: 200 m backstroke |
| Ky Hurst | AUS |
OWS | Olympics | 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 | Olympics | 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 | YOG | 2010 | 0–0–1 2017 Budapest DIV bronze: synchronized platform |
| Emanuele Idini | ITA |
SWM | Olympics | 1992—1996 | 0–0–1 1991 Perth SWI bronze: 4×200 m freestyle relay |
| Danilo Ikodinović | SRB SCG |
WPO | Olympics | 2000—2004 | 1–0–1 2003 Barcelona WAP bronze; 2005 Montréal WAP gold |
| Lara Ilchenko | RUS |
OWS | Olympics | 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 | Olympics | 2016 | 0–0–1 2017 Budapest DIV bronze: synchronized springboard |
| Anna Illés | HUN |
WPO | Olympics | 2016—2020 | 0–0–1 2013 Barcelona WAP bronze |
| Vera Ilyina | RUS EUN |
DIV | Olympics | 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 | Olympics | 2004 | 0–0–1 2005 Montréal SWI bronze: 200 m breaststroke |
| François Imbeau-Dulac | CAN |
DIV | Olympics | 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 | Olympics | 1992—2004 | 0–0–1 2003 Barcelona SWI bronze: 50 m backstroke |
| Yukiko Inui | JPN |
SWA | Olympics | 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 | Olympics | 2012—2016 | 0–1–0 2009 Roma DIV silver: synchronized springboard |
| Ryosuke Irie | JPN |
SWM | Olympics | 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 | Olympics | 2016 | 0–1–0 2017 Budapest SWI silver: 4×100 m medley mixed relay (swam in heats only) |
| Chloé Isaac | CAN |
SWA | Olympics | 2012 | 0–0–2 2009 Roma SYN bronze: team Free Routine Combination; 2011 Shanghai SYN bronze: team Free Routine Combination |
| Nataliya Ishchenko | RUS |
SWA | Olympics / Closing Flagbearer | 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 | Olympics | 2008 | 0–1–0 2009 Roma DIV silver: synchronized platform |
| Yoko Isoda | JPN |
SWA | Olympics | 2000 | 0–1–0 1998 Perth SYN silver: team |
| Megumi Ito | JPN |
SWA | Olympics | 1988 | 0–0–2 1986 Madrid SYN bronze: duet and team |
| Mikhail Ivanov | RUSURS |
WPO | Olympics | 1980—1988 | 1–0–1 1982 Guayaquil WAP gold; 1986 Madrid WAP bronze |
| Vasily Ivanov | RUSEUN |
SWM | Olympics | 1992 | 0–1–0 1994 Roma SWI silver: 4×100 m medley relay (competed for Russia) |
| Yevgeniya Ivanova |  ROCRUS |
WPO | Olympics | 2012—2020 | 0–0–3 2009 Roma WAP bronze; 2011 Shanghai WAP bronze; 2017 Budapest WAP bronze |
| Roman Ivanovsky | RUS |
SWM | Olympics | 1996 | 0–1–0 2003 Barcelona SWI silver: 4×100 m medley relay |
| Sergey Ivlev | RUS |
WPO | Olympics | 1996 | 0–0–1 1994 Roma WAP bronze |
| Aleksandar Ivović |  MNE |
WPO | Olympics | 2008—2020 | 0–1–0 2013 Barcelona WAP silver (competed for Montenegro) |
| Dan Izotov | RUS |
SWM | Olympics | 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 | Olympics | 1976 | 2–0–0 1978 West Berlin SWI gold: 100 m backstroke and 4×100 m medley relay |
| Jo Jackson | GBR |
SWM | Olympics | 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 | Olympics | 2000 | 1–0–0 2001 Fukuoka SWI gold: 4×200 m freestyle relay |
| Trina Jackson | USA |
SWM | Olympics | 1996 | 0–1–0 1998 Perth SWI silver: 4×200 m freestyle relay (swam in heats only) |
| Mette Jacobsen |  DEN |
SWM | Olympics | 1988—2004 | 0–0–2 1991 Perth SWI bronze: 200 m freestyle and 4×200 m freestyle relay |
| Connor Jaeger | USA |
SWM | Olympics | 2012—2016 | 0–1–1 2013 Barcelona SWI bronze: 400 m freestyle; 2015 Kazan SWI silver: 1500 m freestyle |
| Tom Jager | USA |
SWM | Olympics | 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 | Olympics | 2016—2024 | 1–0–1 2015 Kazan WAP gold; 2017 Budapest WAP bronze |
| Andy Jameson | GBR |
SWM | Olympics | 1984—1988 | 0–0–1 1986 Madrid SWI bronze: 100 m butterfly |
| Marina Janicke | GDR |
DIV | Olympics | 1972 | 0–0–1 1973 Belgrade DIV bronze: 3 m springboard |
| Zoran Janković | SRB YUG |
WPO | Olympics | 1964—1972 | 0–0–1 1978 West Berlin WAP bronze |
| Mlađan Janović | MNE |
WPO | Olympics | 2008—2016 | 0–1–0 2013 Barcelona WAP silver |
| Nikola Janović | MNE |
WPO | Olympics | 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 | Olympics | 1976 | 0–0–1 1975 Cali SWI bronze: 4×100 m freestyle relay |
| Martina Jäschke | GDR |
DIV | Olympics | 1980 | 0–1–0 1978 West Berlin DIV silver: platform |
| Becky Jasontek | USA |
SWA | Olympics | 2004 | 0–1–2 1998 Perth SYN bronze: team; 2003 Barcelona SYN silver: team Free Routine Combination, bronze: team |
| Otylia Jędrzejczak |  POL |
SWM | Olympics | 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 | Olympics | 2004 | 2–0–0 2003 Barcelona SWI gold: 4×100 m freestyle relay and 4×200 m freestyle relay |
| Viktor Jelenić | SRBSCG |
WPO | Olympics | 1996—2004 | 1–0–1 1991 WAP Perth gold; 2003 Barcelona WAP bronze |
| Gitta Jensen | DEN |
SWM | Olympics | 1988—1992 | 0–0–1 1991 Perth SWI bronze: 4×200 m freestyle relay |
| Larsen Jensen | USA |
SWM | Olympics | 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 | Olympics | 1976 | 0–1–0 1978 West Berlin SWI silver: 100 m freestyle |
| Linda Jezek | USA |
SWM | Olympics | 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 | Olympics | 2012 | 0–1–1 2011 Shanghai SWI silver: 4×100 m medley rela, bronze: 100 m breaststroke |
| Jiang Tingting | CHN |
SWA | Olympics | 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 | Olympics | 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 | Olympics | 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 | Olympics | 1996—2000 | 0–1–1 1994 Roma SYN bronze: team; 1998 Perth SYN silver: team |
| Jennie Johansson | SWE |
SWM | Olympics | 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 | Olympics | 1980—1988 | 0–0–2 1982 Guayaquil SWI bronze: 100 m freestyle and 4×100 m freestyle relay |
| Brian Johns | CAN |
SWM | Olympics | 2000—2008 | 0–0–1 2007 Melbourne SWI bronze: 4×200 m freestyle relay |
| Ashleigh Johnson | USA |
WPO | Olympics | 2016—2024 | 2–0–0 2015 Kazan WAP gold; 2019 Gwangju WAP gold |
| Emma Johnson | AUS |
SWM | Olympics | 1996 | 0–0–1 1998 Perth SWI bronze: 4×200 m freestyle relay (swam in heats only) |
| Jenna Johnson | USA |
SWM | Olympics | 1984 | 0–3–0 1986 Madrid SWI silver: 100 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay |
| Predrag Jokić | MNESCG |
WPO | Olympics / Closing Flagbearer | 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 | Olympics | 2008—2024 | 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 |
