Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Im Chae-Bin | CTR | Olympics | 2016 | 1–0–1 2014 Incheon CRD gold: sprint team; 2018 Jakarta/Palembang CRD bronze: sprint | |
| Im Chang-Yong | BBL | Olympics | 2000 | 3–0–0 1998 Bangkok BSB gold; 2002 Busan BSB gold; 2014 Incheon BSB gold | |
| Im Chang-Yong | BBL | Olympics | 2000 | 3–0–0 1998 Bangkok BSB gold; 2002 Busan BSB gold; 2014 Incheon BSB gold | |
| Im Chun-Ae | ATH | Olympics / Torch Bearer | 1988 | 3–0–0 1986 Seoul ATH gold: 800 m, 1500 m, and 3000 m | |
| Im Deok-Jun | HBL | Olympics | 2004—2012 | 0–1–0 2014 Incheon HBL silver | |
| Im Do-Heon | VVO | Olympics | 1992—1996 | 0–0–1 1994 Hiroshima VVO bronze | |
| Im Dong-Gi | SHO | Olympics | 1984 | 0–2–1 1986 Seoul SHO silver: skeet team, bronze: skeet; 1990 Beijing SHO silver: skeet team | |
| Im Dong-Hyeon | ARC | Olympics | 2004—2012 | 4–0–1 2002 Busan ARC gold: team, bronze: individual; 2006 Doha ARC gold: individual and team; 2010 Guangzhou ARC gold: team | |
| Im Gye-Suk | HOC | Olympics | 1988—1992 | 2–1–0 1982 New Delhi HOC silver; 1986 Seoul HOC gold; 1990 Beijing HOC gold | |
| Im Gyeong-Jin | BDM | Olympics | 2000 | 0–2–0 1998 Bangkok BDM silver: team and mixed doubles | |
| Im Gyeong-Seok | ROW | Olympics | 1988 | 0–1–0 1990 Beijing ROW silver: single sculls | |
| Im Gyu-Ha | HBL | Olympics / Referee | 1984—2000 | 1–0–1 1982 New Delhi HBL bronze; 1986 Seoul HBL gold | |
| Im Hye-Suk | VVO | Olympics | 1984—1988 | 0–0–1 1986 Seoul VVO bronze | |
| Im Jang-Su | SHO | Olympics | 1988 | 2–3–2 1986 Seoul SHO gold: 25 m rapid-fire pistol team, bronze: 25 m rapid-fire pistol; 1990 Beijing SHO gold: 25 m rapid-fire pistol team, silver: 25 m centre fire pistol team, 25 m rapid-fire pistol, and 25 m standard pistol team; 1994 Hiroshima SHO bronze: 25 m rapid-fire pistol team | |
| Im Jeong-Bin | BOX | Olympics | 2000 | 0–1–0 1998 Bangkok BOX silver: light-middleweight -71 kg | |
| Im Jeong-Bin | BOX | Olympics | 2000 | 0–1–0 1998 Bangkok BOX silver: light-middleweight -71 kg | |
| Im Jeong-U | HOC | Olympics / Coach | 2000—2012 | 0–1–0 1998 Bangkok HOC silver | |
| Im Jeong-U | HOC | Olympics | 2004 | 0–1–0 2002 Busan HOC silver | |
| Im Jin-Seok | HBL | Olympics | 1988—1992 | 1–0–0 1986 Seoul HBL gold | |
| Im Jong-Cheon | HOC | Olympics | 2000 | 1–0–0 2002 Busan HOC gold | |
| Im Mi-Gyeong | HBL | Olympics | 1988 | 1–0–0 1990 Beijing HBL gold | |
| Im Nam-Gyun | SWM | Olympics | 2008 | 0–0–3 2006 Doha SWM bronze: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay (swam in heats only) | |
| Im Sang-Jo | CRD | Olympics | 1952—1956 | 1–0–0 1958 Tokyo CRD gold: road race team | |
| Im Seon-Dong | BBL | Olympics | 1996—2000 | 0–1–0 1994 Hiroshima BSB silver | |
| Im Seon-Dong | BBL | Olympics | 1996—2000 | 0–1–0 1994 Hiroshima BSB silver | |
| Im Tae-Ho | VVO | Olympics | 1964 | 0–2–0 1962 Jakarta VVO silver: nine-a-side; 1966 Bangkok VVO silver | |
| Im Yeong-Cheol | HBL | Olympics / Coach | 1984—2016 | 0–0–1 1982 New Delhi HBL bronze | |
| Im Yeong-Seop | SHO | Olympics | 1996—2000 | 0–0–1 2002 Busan SHO bronze: 10 m air rifle team | |
| Im Yong-Su | WLF | Olympics | 2000—2008 | 0–1–1 2002 Busan WLF silver: featherweight -62 kg; 2006 Doha WLF bronze: featherweight -62 kg | |
| Kenichi Imaizumi | BKB | Olympics | 1956—1960 | 0–0–1 1958 Tokyo BKB bronze | |
| Fumio Imamura | ATH | Olympics | 1992—2000 | 0–1–1 1994 Hiroshima ATH silver: 50 km walk; 1998 Bangkok ATH bronze: 50 km walk | |
| Kimihiko Imamura | SAL | Olympics | 2016 | 0–1–0 2014 Incheon SAL silver: 470 | |
| Aset Imanbayev | WRE | Olympics | 2008 | 1–0–0 2002 Busan WRE gold: Greco-Roman bantamweight -55 kg | |
| Dae Imlani | SWM | Olympics | 1972 | 0–2–2 1970 Bangkok SWM silver: 4×100 m freestyle relay and 4×200 m freestyle relay; 1974 Tehran SWM bronze: 4×100 m freestyle relay and 4×200 m freestyle relay | |
| Yakhyo Imomov | JUD | Olympics | 2012 | 0–0–1 2014 Incheon JUD bronze: team | |
| Naoko Imoto | SWM | Olympics | 1996 | 2–1–1 1990 Beijing SWM bronze: 50 m freestyle; 1994 Hiroshima SWM gold: 50 m freestyle and 4×100 m freestyle relay, silver: 100 m freestyle | |
| Muhammad Imran | HOC | Olympics | 2008—2012 | 1–1–1 2006 Doha HOC bronze; 2010 Guangzhou HOC gold; 2014 Incheon HOC silver | |
| Tariq Imran | HOC | Olympics | 2000 | 0–0–1 1998 Bangkok HOC bronze | |
| Noriko Inada | SWM | Olympics | 1992—2004 | 0–2–0 2002 Busan SWM silver: 100 m backstroke and 4×100 m medley relay | |
| Yoko Inada | SHO | Olympics | 1996—2004 | 0–2–1 1994 Hiroshima SHO silver: 10 m air pistol team, bronze: 10 m air pistol; 2006 Doha SHO silver: 25 m sporting pistol team | |
| Mamoru Inagaki | SHO | Olympics | 1988—1992 | 0–4–5 1982 New Delhi SHO bronze: 10 m air pistol team and 50 m free pistol team; 1986 Seoul SHO silver: 25 m standard pistol and 50 m free pistol team, bronze: 10 m air pistol and 10 m air pistol team; 1990 Beijing SHO silver: 50 m free pistol team, bronze: 10 m air pistol team; 1994 Hiroshima SHO silver: 50 m free pistol team | |
| Michiyo Inaoka | ATH | Olympics | 1972 | 1–0–0 1970 Bangkok ATH gold: high jump | |
| Kwuanfah Inchareon | ATH | Olympics | 1996 | 0–1–0 1994 Hiroshima ATH silver: 4×100 m relay | |
| Sri Indriyani | WLF | Olympics | 2000 | 0–0–1 1998 Bangkok WLF bronze: flyweight -48 kg | |
| Yukio Inokuma | SHO | Olympics | 1952—1960 | 1–0–0 1958 Tokyo SHO gold: 50 m small-bore rifle prone | |
| Etsuko Inoue | TEN | Olympics / Non-Medal | 1984—1988 | 1–1–2 1982 New Delhi TEN gold: singles, silver: mixed doubles, bronze: doubles and team | |
| Kiyoto Inoue | CSP | Olympics | 1984—1988 | 0–1–0 1990 Beijing CSP silver: C1 500 m | |
| Kosei Inoue | JUD | Olympics / Coach Oath Taker / Opening Flagbearer | 2000—2020 | 2–0–0 1998 Bangkok JUD gold: half-heavyweight -100 kg; 2002 Busan JUD gold: open class | |
| Mayumi Inoue | SBL | Olympics | 1996 | 0–1–0 1994 Hiroshima SOF silver | |
| Megumi Inoue | SHO | Olympics | 2004 | 0–0–2 1998 Bangkok SHO bronze: double trap team (competed as Megumi Shirota); 2002 Busan SHO bronze: double trap team | |
| Osamu Inoue | ATH | Olympics | 1952 | 2–0–0 1954 Manila ATH gold: 5000 m; 1958 Tokyo ATH gold: 5000 m | |
| Satoru Inoue | ATH | Olympics | 1992—1996 | 1–0–0 1994 Hiroshima ATH gold: 4×100 m relay | |
| Toshiaki Inoue | ATH | Olympics | 1972—1976 | 1–0–0 1974 Tehran ATH gold: triple jump | |
| Ratchanok Intanon | BDM | Olympics / Opening Flagbearer | 2012—2024 | 0–1–1 2010 Guangzhou BDM silver: team; 2018 Jakarta/Palembang BDM bronze: team | |
| Emi Inui | SBL | Olympics / Non-starter | 2004—2008 | 1–0–0 2006 Doha SOF gold | |
| Yukiko Inui | SWA | Olympics | 2012—2020 | 0–8–0 2010 Guangzhou SWA silver: duet, team, and combination; 2014 Incheon SWA silver: duet, team, and combination; 2018 Jakarta/Palembang SWA silver: duet and team | |
| Muhammad Iqbal | ATH | Olympics / Opening Flagbearer | 1952—1960 | 1–1–1 1954 Manila ATH silver: hammer throw; 1958 Tokyo ATH gold: hammer throw; 1962 Jakarta ATH bronze: hammer throw | |
| Zafar Iqbal | HOC | Olympics / Opening Flagbearer | 1980—1984 | 0–2–0 1978 Bangkok HOC silver; 1982 New Delhi HOC silver | |
| Eko Yuli Irawan | WLF | Olympics | 2008—2024 | 1–0–2 2010 Guangzhou WLF bronze: featherweight -62 kg; 2014 Incheon WLF bronze: featherweight -62 kg; 2018 Jakarta/Palembang WLF gold: featherweight -62 kg | |
| Muhammad Irfan | HOC | Olympics | 2012 | 1–1–0 2010 Guangzhou HOC gold; 2014 Incheon HOC silver | |
| Ryosuke Irie | SWM | Olympics | 2008—2020 | 6–8–0 2006 Doha SWM gold: 200 m backstroke; 2010 Guangzhou SWM gold: 100 m backstroke, 200 m backstroke, and 4×100 m medley relay, silver: 50 m backstroke; 2014 Incheon SWM gold: 100 m backstroke and 200 m backstroke, silver: 50 m backstroke and 4×100 m medley relay; 2018 Jakarta/Palembang SWM silver: 50 m backstroke, 100 m backstroke, 200 m backstroke, 4×100 m medley relay, and 4×100 m medley mixed relay | |
| Takashi Irie | WRE | Olympics | 1984 | 1–0–1 1978 Bangkok WRE gold: freestyle light-flyweight -48 kg; 1986 Seoul WRE bronze: freestyle light-flyweight -48 kg | |
| Vladimir Isachenko | SHO | Olympics | 2004—2016 | 0–0–2 2002 Busan SHO bronze: 10 m air pistol team; 2006 Doha SHO bronze: 25 m standard pistol | |
| Inna Isakova | CSP | Olympics | 1996 | 0–2–1 1994 Hiroshima CSP silver: K4 500 m, bronze: K2 500 m; 1998 Bangkok CSP silver: K4 500 m | |
| Gulzhan Isanova | JUD | Olympics | 2008—2012 | 0–1–3 2006 Doha JUD bronze: open class; 2010 Guangzhou JUD bronze: heavyweight +78 kg; 2018 Jakarta/Palembang JUD silver: team, bronze: heavyweight +78 kg | |
| Ryoji Isaoka | WLF | Olympics | 1984—1992 | 2–0–1 1982 New Delhi WLF gold: light-heavyweight -82.5 kg; 1986 Seoul WLF gold: light-heavyweight -82.5 kg; 1990 Beijing WLF bronze: light-heavyweight -82.5 kg | |
| Bodin Isara | BDM | Olympics | 2012—2016 | 0–0–1 2010 Guangzhou BDM bronze: team | |
| Takemi Ise | SWM | Olympics | 1984 | 2–1–0 1982 New Delhi SWM gold: 100 m butterfly and 4×100 m medley relay, silver: 200 m butterfly | |
| Kazuharu Ishida | WRE | Olympics | 1972 | 0–1–0 1974 Tehran WRE silver: Greco-Roman light-flyweight -48 kg | |
| Kyoko Ishida | VVO | Olympics | 1984 | 0–1–0 1982 New Delhi VVO silver | |
| Yoshihisa Ishida | ATH | Olympics | 1968—1972 | 0–2–0 1966 Bangkok ATH silver: shot put; 1970 Bangkok ATH silver: hammer throw | |
| Hitoshi Ishigaki | BOX | Olympics | 1976 | 1–0–0 1974 Tehran BOX gold: bantamweight -54 kg | |
| Hitoshi Ishigaki | BOX | Olympics | 1976 | 1–0–0 1974 Tehran BOX gold: bantamweight -54 kg | |
| Toshiyasu Ishige | SHO | Olympics | 1964—1976 | 1–0–0 1974 Tehran SHO gold: trap team | |
| Hiroshi Ishii | SWM | Olympics | 1960 | 0–1–0 1958 Tokyo SWM silver: 1500 m freestyle | |
| Kikuyo Ishii | SWM | Olympics | 1972 | 0–1–0 1970 Bangkok SWM silver: 100 m backstroke | |
| Satoshi Ishii | JUD | Olympics | 2008 | 0–1–0 2006 Doha JUD silver: half-heavyweight -100 kg | |
| Takao Ishii | SHO | Olympics | 1960—1964 | 5–1–1 1962 Jakarta SHO gold: 50 m small-bore rifle 3 positions; 1966 Bangkok SHO gold: 10 m air rifle team, 50 m small-bore rifle prone team, 50 m small-bore rifle 3 positions team, and 50 m standard rifle 3 positions team, silver: 50 m small-bore rifle 3 positions, bronze: 50 m standard rifle 3 positions | |
| Tetsunosuke Ishii | WPO | Olympics | 1968 | 1–0–0 1966 Bangkok WPO gold | |
| Yusuke Ishijima | VBV/VVO | Olympics | 2008—2020 | 1–0–0 2010 Guangzhou VVO gold | |
| Kenji Ishikawa | SWM | Olympics | 1964 | 4–2–0 1962 Jakarta SWM gold: 100 m breaststroke and 4×100 m medley relay, silver: 200 m breaststroke; 1966 Bangkok SWM gold: 100 m breaststroke and 4×100 m medley relay, silver: 200 m breaststroke | |
| Naohiro Ishikawa | FBL | Olympics | 2004 | 0–1–0 2002 Busan FBL silver | |
| Taeko Ishikawa | SBL | Olympics | 2000 | 0–1–0 1998 Bangkok SOF silver | |
| Yukio Ishikawa | ATH | Olympics | 1956 | 0–2–1 1951 New Delhi ATH silver: high jump; 1954 Manila ATH silver: high jump; 1958 Tokyo ATH bronze: high jump | |
| Takashi Ishimoto | SWM | Olympics | 1956 | 3–0–0 1958 Tokyo SWM gold: 100 m butterfly, 200 m butterfly, and 4×100 m medley relay | |
| Korina Ishimtseva | VVO | Olympics | 2008 | 0–0–1 2010 Guangzhou VVO bronze | |
| Manami Ishizaka | GAR | Olympics | 2004 | 0–1–1 2002 Busan GAR bronze: team; 2006 Doha GAR silver: team | |
| Hiroko Ishizu | ARC | Olympics | 1984 | 0–0–1 1986 Seoul ARC bronze: team | |
| Islah-ud-Din | HOC | Olympics | 1972—1976 | 3–0–0 1970 Bangkok HOC gold; 1974 Tehran HOC gold; 1978 Bangkok HOC gold | |
| Rafael Islamov | CSP | Olympics | 1996 | 1–0–0 1998 Bangkok CSP gold: K4 1000 m | |
| Ramil Islamov | WRE | Olympics | 1996—2000 | 0–1–0 1998 Bangkok WRE silver: freestyle lightweight -63 kg | |
| Ibrahim Ismail | ATH | Olympics / Opening Flagbearer | 1992—2000 | 1–3–2 1990 Beijing ATH silver: 400 m and 4×400 m relay; 1994 Hiroshima ATH gold: 400 m, bronze: 200 m and 4×400 m relay; 1998 Bangkok ATH silver: 400 m | |
| Junko Isoda | SWM | Olympics | 2000 | 0–0–1 1998 Bangkok SWM bronze: 200 m breaststroke | |
| Yorihide Isogai | WRE | Olympics | 1968—1976 | 1–2–0 1970 Bangkok WRE silver: freestyle super-heavyweight +100 kg; 1974 Tehran WRE gold: freestyle super-heavyweight +100 kg, silver: Greco-Roman super-heavyweight +100 kg | |
| Takao Isokawa | WRE | Olympics | 2012 | 0–0–1 2010 Guangzhou WRE bronze: freestyle heavyweight -96 kg | |
| Hiromi Isozaki-Ikeda | FBL | Olympics | 2004—2008 | 0–1–1 1998 Bangkok FBL bronze (competed as Hiromi Isozaki); 2006 Doha FBL silver (competed as Hiromi Isozaki) | |
| Denis Istomin | TEN | Olympics | 2012—2020 | 1–2–1 2010 Guangzhou TEN silver: singles and team; 2014 Incheon TEN bronze: team; 2018 Jakarta/Palembang TEN gold: singles | |
| Sergey Istomin | WLF | Olympics | 2008 | 0–0–1 2010 Guangzhou WLF bronze: heavyweight -105 kg | |
| Mikio Itakura | SHO | Olympics | 1984 | 0–0–1 1982 New Delhi SHO bronze: skeet team | |
| Atsushi Ito | WRE | Olympics | 1988—1992 | 0–1–0 1994 Hiroshima WRE silver: freestyle light-heavyweight -90 kg | |
| Fumiko Ito | ATH | Olympics | 1960 | 0–1–0 1962 Jakarta ATH silver: long jump | |
| Hanae Ito | SWM | Olympics | 2008—2012 | 0–2–1 2010 Guangzhou SWM silver: 4×100 m freestyle relay and 4×200 m freestyle relay, bronze: 200 m freestyle | |
| Hidetada Ito | HBL | Olympics | 1984—1988 | 0–1–1 1982 New Delhi HBL silver; 1986 Seoul HBL bronze | |
| Hiromichi Ito | WRE | Olympics | 1988 | 0–1–1 1986 Seoul WRE bronze: Greco-Roman welterweight -74 kg; 1990 Beijing WRE silver: Greco-Roman welterweight -74 kg | |
| Katsuji Ito | SWM | Olympics | 1968 | 1–1–0 1966 Bangkok SWM gold: 4×200 m freestyle relay, silver: 1500 m freestyle | |
| Kazue Ito | SBL | Olympics | 2000—2004 | 1–0–0 2002 Busan SOF gold | |
| Keisuke Ito | SWM | Olympics | 1964 | 1–1–0 1962 Jakarta SWM gold: 200 m backstroke, silver: 100 m backstroke | |
| Koji Ito | ATH | Olympics | 1996—2000 | 4–1–0 1994 Hiroshima ATH gold: 4×100 m relay, silver: 200 m; 1998 Bangkok ATH gold: 100 m, 200 m, and 4×100 m relay | |
| Minoru Ito | SHO | Olympics | 1972 | 2–0–3 1970 Bangkok SHO gold: 10 m air rifle and 10 m air rifle team, bronze: 50 m small-bore rifle prone team and 50 m small-bore rifle 3 positions team; 1974 Tehran SHO bronze: 50 m small-bore rifle 3 positions team | |
| Sachiko Ito | SBL | Olympics | 2008 | 2–0–0 2002 Busan SOF gold; 2006 Doha SOF gold | |
| Shinji Ito | SWM | Olympics | 1984 | 0–0–2 1982 New Delhi SWM bronze: 200 m medley amd 400 m medley | |
| Shunsuke Ito | SWM | Olympics | 1996 | 4–0–0 1998 Bangkok SWM gold: 100 m freestyle, 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay | |
| Tatsuma Ito | TEN | Olympics | 2012 | 0–0–3 2010 Guangzhou TEN bronze: singles and team; 2014 Incheon TEN bronze: team | |
| Hajime Itoi | SWM | Olympics | 1992—1996 | 2–4–1 1990 Beijing SWM silver: 100 m backstroke and 4×100 m medley relay, bronze: 200 m backstroke; 1994 Hiroshima SWM gold: 100 m backstroke and 4×100 m medley relay, silver: 200 m backstroke and 100 m butterfly | |
| Teruo Itokawa | ATH | Olympics | 1964 | 1–0–0 1962 Jakarta ATH gold: shot put | |
| Mayo Itoyama | SWA | Olympics | 2012 | 0–3–0 2010 Guangzhou SWA silver: team and combination; 2014 Incheon SWA silver: combination | |
| Takashi Itoyama | BKB | Olympics | 1956—1960 | 0–0–2 1954 Manila BKB bronze; 1958 Tokyo BKB bronze | |
| Ivan Ivanov | ATH | Olympics | 2016 | 0–0–1 2018 Jakarta/Palembang ATH bronze: shot put | |
| Nataliya Ivoninskaya | ATH | Olympics | 2008—2012 | 0–1–0 2010 Guangzhou ATH silver: 100 m hurdles | |
| Mana Iwabuchi | FBL | Olympics | 2012—2020 | 1–0–0 2018 Jakarta/Palembang FBL gold | |
| Satoshi Iwabuchi | TEN | Olympics | 1996—2000 | 1–4–1 1994 Hiroshima TEN bronze: team; 1998 Bangkok TEN gold: mixed doubles, silver: singles and team; 2006 Doha TEN silver: team and mixed doubles | |
| Yumi Iwabuchi | SBL | Olympics | 2004 | 1–0–0 2002 Busan SOF gold | |
| Michinori Iwaguro | ROW | Olympics | 1992—1996 | 0–2–0 1990 Beijing ROW silver: eights; 1994 Hiroshima ROW silver: lightweight coxless fours | |
| Toyoko Iwahara | VVO | Olympics | 1968—1972 | 1–0–0 1970 Bangkok VVO gold | |
| Yoshitaka Iwamizu | ATH | Olympics | 2004—2008 | 0–1–0 2002 Busan ATH silver: 3000 m steeplechase | |
| Shohei Iwamoto | MPN | Olympics | 2016—2020 | 0–1–1 2014 Incheon MPN silver: team, bronze: individual | |
| Sachimi Iwao | HOC | Olympics | 2004—2012 | 0–1–1 2002 Busan HOC bronze; 2006 Doha HOC silver | |
| Kunihiro Iwasaki | SWM | Olympics | 1964—1968 | 7–1–0 1966 Bangkok SWM gold: 100 m freestyle, 200 m freestyle, 4×200 m freestyle relay, and 4×100 m medley relay; 1970 Bangkok SWM gold: 200 m freestyle, 4×100 m freestyle relay, and 4×200 m freestyle relay, silver: 100 m freestyle | |
| Toshihiko Iwasaki | ATH | Olympics | 1992 | 0–1–0 1990 Beijing ATH silver: 110 m hurdles | |
| Azusa Iwashimizu | FBL | Olympics | 2008—2012 | 1–2–0 2006 Doha FBL silver; 2010 Guangzhou FBL gold; 2014 Incheon FBL silver | |
| Satsuo Iwashita | ATH | Olympics | 1964 | 0–0–2 1962 Jakarta ATH bronze: 1500 m; 1966 Bangkok ATH bronze: 1500 m | |
| Minoru Iwata | VVO | Olympics | 1984 | 1–0–0 1982 New Delhi VVO gold | |
| Tokusaburo Iwata | SHO | Olympics | 1956 | 0–1–0 1954 Manila SHO silver: trap | |
| Yoshiko Iwata | BDM | Olympics | 2000 | 0–0–1 1998 Bangkok BDM bronze: team | |
| Hiroshi Izumi | JUD | Olympics | 2004—2008 | 0–0–1 2006 Doha JUD bronze: middleweight -90 kg | |
| Hiroyuki Izumi | CSP | Olympics | 1984—1988 | 0–0–1 1990 Beijing CSP bronze: C2 500 m | |
| Masayuki Izumikawa | VVO | Olympics | 1992 | 1–0–1 1994 Hiroshima VVO gold; 2002 Busan VVO bronze | |
| Kenzo Izutsu | SWM | Olympics | 1960 | 3–0–0 1962 Jakarta SWM gold: 100 m butterfly, 200 m butterfly, and 4×100 m medley relay | |
| Ali Jabbari | FBL | Olympics | 1972 | 1–1–0 1966 Bangkok FBL silver; 1974 Tehran FBL gold | |
| Ivan Jacob | ATH | Olympics | 1952 | 0–1–0 1954 Manila ATH silver: 4×400 m relay | |
| Abbas Jadidi | WRE | Olympics | 1996—2000 | 1–1–0 1998 Bangkok WRE gold: freestyle heavyweight -97 kg; 2002 Busan WRE silver: freestyle super-heavyweight -120 kg | |
| Tofigh Jahanbakht | WRE | Olympics | 1952 | 0–1–0 1958 Tokyo WRE silver: freestyle welterweight -73 kg | |
| Ghafour Jahani | FBL | Olympics | 1976 | 1–0–0 1974 Tehran FBL gold | |
| O. P. Jaisha | ATH | Olympics | 2016 | 0–0–2 2006 Doha ATH bronze: 5000 m; 2014 Incheon ATH bronze: 1500 m | |
| Jairulla Jaitulla | SWM | Olympics | 1972—1984 | 0–3–4 1970 Bangkok SWM silver: 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay, bronze: 200 m freestyle; 1974 Tehran SWM bronze: 200 m medley and 4×100 m medley relay; 1978 Bangkok SWM bronze: 4×200 m freestyle relay | |
| Bandid Jaiyen | BDM | Non-Medal | 1972 | 0–2–1 1970 Bangkok BDM silver: mixed doubles and team; 1978 Bangkok BDM bronze: team | |
| Sangwan Jaksunin | ATH | Olympics | 2008 | 1–0–0 2010 Guangzhou ATH gold: 4×100 m relay (competed as Phatsorn Jaksuninkorn) | |
| Parviz Jalayer | WLF | Olympics | 1964—1968 | 1–0–0 1966 Bangkok WLF gold: lightweight -67.5 kg | |
| Amman Jalmaani | SWM | Olympics | 1964—1972 | 0–3–3 1966 Bangkok SWM bronze: 100 m breaststroke and 4×100 m medley relay; 1970 Bangkok SWM silver: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay; 1974 Tehran SWM bronze: 4×100 m medley relay | |
| Roberto Jalnaiz | BOX | Olympics | 1988—1992 | 1–0–0 1990 Beijing BOX gold: bantamweight -54 kg | |
| Roberto Jalnaiz | BOX | Olympics | 1988—1992 | 1–0–0 1990 Beijing BOX gold: bantamweight -54 kg | |
| Muhaisin Al-Jamaan | FBL | Olympics | 1984 | 0–1–0 1986 Seoul FBL silver | |
| Maryam Jamal | ATH | Olympics | 2008—2012 | 5–0–0 2006 Doha ATH gold: 800 m and 1500 m; 2010 Guangzhou ATH gold: 1500 m; 2014 Incheon ATH gold: 1500 m and 5000 m | |
| Mahlagha Jambozorg | SHO | Olympics | 2012—2016 | 0–1–2 2010 Guangzhou SHO silver: 10 m air rifle team, bronze: 50 m small-bore rifle 3 positions team; 2018 Jakarta/Palembang SHO bronze: 50 m small-bore rifle 3 positions | |
| Romeo James | HOC | Olympics | 1984 | 0–1–0 1982 New Delhi HOC silver | |
| Jamtsyn Bor | WRE | Olympics | 1980 | 0–1–0 1978 Bangkok WRE silver: freestyle heavyweight -100 kg | |
| Jamtsyn Davaajav | WRE | Olympics | 1976—1980 | 0–0–1 1978 Bangkok WRE bronze: freestyle welterweight -74 kg | |
| Jang Bong-Mun | BOX | Olympics | 1980 | 0–1–0 1978 Bangkok BOX silver: middleweight -75 kg | |
| Jang Bong-Mun | BOX | Olympics | 1980 | 0–1–0 1978 Bangkok BOX silver: middleweight -75 kg | |
| Jang Byeong-Cheol | VVO | Olympics | 2000 | 2–1–0 1998 Bangkok VVO silver; 2002 Busan VVO gold; 2006 Doha VVO gold | |
| Jang Chang-Seon | WRE | Olympics | 1964 | 0–1–0 1962 Jakarta WRE silver: freestyle flyweight -52 kg | |
| Jang Eun-Jeong | HOC | Olympics | 1988—1996 | 2–0–0 1990 Beijing HOC gold; 1994 Hiroshima HOC gold | |
| Jang Gyeong-Mu | WRE | Olympics | 1968 | 0–0–1 1966 Bangkok WRE bronze: freestyle featherweight -63 kg | |
| Jang Gyu-Cheol | SWM | Olympics / YOG | 2010—2012 | 0–1–0 2010 Guangzhou SWM silver: 4×100 m medley relay (swam in heats only) | |
| Jang Hyang-Mi | SWA | Olympics | 2012 | 0–0–1 2010 Guangzhou SWA bronze: team | |
| Jang Hye-Jin | ARC | Olympics | 2016 | 2–1–0 2014 Incheon ARC gold: team, silver: individual; 2018 Jakarta/Palembang ARC gold: team | |
| Jang Hye-Ok | BDM | Olympics | 1996 | 2–1–0 1994 Hiroshima BDM gold: doubles and team, silver: mixed doubles | |
| Jang Hyeon-Su | FBL | Olympics | 2016 | 1–0–0 2014 Incheon FBL gold | |
| Jang Jae-Geun | ATH | Olympics | 1984—1988 | 2–1–1 1982 New Delhi ATH gold: 200 m, silver: 100 m; 1986 Seoul ATH gold: 200 m, bronze: 4×100 m relay | |
| Jang Jae-Seong | WRE | Olympics | 1996—2000 | 1–1–0 1994 Hiroshima WRE silver: freestyle featherweight -62 kg; 1998 Bangkok WRE gold: freestyle featherweight -63 kg | |
| Jang Jong-Hyeon | HOC | Olympics | 2004—2012 | 1–0–1 2006 Doha HOC gold; 2014 Incheon HOC bronze | |
| Jang Mi-Gyeong | FEN | Olympics | 1992 | 0–1–1 1994 Hiroshima FEN silver: foil, bronze: foil team | |
| Jang Mi-Ran | WLF | Olympics / Closing Flagbearer | 2004—2012 | 1–2–0 2002 Busan WLF silver: super-heavyweight +75 kg; 2006 Doha WLF silver: super-heavyweight +75 kg; 2010 Guangzhou WLF gold: super-heavyweight +75 kg | |
| Jang Ri-Ra | HBL | Olympics | 1992 | 1–0–0 1990 Beijing HBL gold | |
| Jang Se-Hong | WRE | Olympics | 1980 | 0–1–0 1978 Bangkok WRE silver: freestyle light-flyweight -48 kg | |
| Jang Seon-Hyeong | BKB | Olympics | 2000 | 0–1–1 1998 Bangkok BKB bronze; 2002 Busan BKB silver | |
| Jang Seon-Jae | CTR | Olympics | 2012 | 5–1–0 2006 Doha CRD gold: 4000 m pursuit individual, 4000 m pursuit team, and madison; 2010 Guangzhou CRD gold: 4000 m pursuit individual and 4000 m pursuit team; 2014 Incheon CRD silver: 4000 m pursuit team (raced in heats only) | |
| Jang Seong-Ho | BBL | Olympics | 2000 | 1–0–1 2002 Busan BSB gold; 2006 Doha BSB bronze | |
| Jang Seong-Ho | JUD | Olympics / Opening Flagbearer | 2000—2008 | 1–1–0 2002 Busan JUD silver: half-heavyweight -100 kg; 2006 Doha JUD gold: half-heavyweight -100 kg | |
| Jang Si-Yeong | WPO | Olympics | 1988 | 0–0–1 1990 Beijing WPO bronze | |
| Jang So-Hui | HBL | Olympics | 2004 | 1–0–0 2002 Busan HBL gold | |
| Jang So-Yeon | VVO | Olympics | 1996—2004 | 1–2–0 1994 Hiroshima VVO gold; 1998 Bangkok VVO silver; 2002 Busan VVO silver | |
| Jang Su-Ji | HOC | Olympics | 2012—2016 | 1–1–0 2010 Guangzhou HOC silver; 2014 Incheon HOC gold | |
| Jang Sun-Yong | ARC | Olympics | 1976 | 0–0–1 1978 Bangkok ARC bronze: team | |
| Jang Tae-Seok | FEN | Olympics | 1992—1996 | 1–1–0 1990 Beijing FEN gold: épée team, silver: épée | |
| Jang Ui-Jong | TEN | Olympics | 1992 | 0–1–1 1994 Hiroshima TEN silver: doubles, bronze: mixed doubles | |
| Jang Won-Sam | BBL | Olympics | 2008 | 0–0–1 2006 Doha BSB bronze | |
| Jang Ye-Na | BDM | Olympics | 2016 | 0–1–1 2010 Guangzhou BDM bronze: team; 2014 Incheon BDM silver: team | |
| Jang Yong-Ho | ARC | Olympics | 1996—2004 | 1–0–0 2006 Doha ARC gold: team | |
| Jang Yun-Chang | VVO | Olympics | 1984—1988 | 1–2–1 1978 Bangkok VVO gold; 1982 New Delhi VVO bronze; 1986 Seoul VVO silver; 1990 Beijing VVO silver | |
| Jang Yun-Gyeong | SWA | Olympics | 2000 | 0–2–1 1998 Bangkok SWA silver: duet; 2002 Busan SWA silver: solo, bronze: duet | |
| Jang Yun-Ho | CRD | Olympics | 1984 | 1–0–1 1982 New Delhi CRD gold: road time trial team; 1986 Seoul CRD bronze: road time trial team | |
| Jang Yun-Hui | VVO | Olympics | 1996 | 1–2–0 1990 Beijing VVO silver; 1994 Hiroshima VVO gold; 1998 Bangkok VVO silver | |
| Parkpoom Jangphonak | BOX | Olympics | 1996—2000 | 1–0–0 1998 Bangkok BOX gold: welterweight -67 kg | |
| Parkpoom Jangphonak | BOX | Olympics | 1996—2000 | 1–0–0 1998 Bangkok BOX gold: welterweight -67 kg | |
| Ekkachai Janthana | ATH | Olympics | 1996 | 2–0–0 2002 Busan ATH gold: 4×100 m relay; 2006 Doha ATH gold: 4×100 m relay | |
| Jargalsaikhany Chuluunbat | WRE | Olympics | 2012—2016 | 0–1–0 2010 Guangzhou WRE silver: freestyle super-heavyweight -120 kg | |
| Prapawadee Jaroenrattanatarakoon | WLF | Olympics | 2008 | 0–1–1 2006 Doha WLF silver: featherweight -53 kg; 2010 Guangzhou WLF bronze: featherweight -53 kg | |
| Waleed Jasem Mubarak | FBL | Olympics | 1980 | 0–1–1 1982 New Delhi FBL silver; 1986 Seoul FBL bronze | |
| Salwan Jasim Al-Aifuri | WLF | Olympics | 2016 | 0–1–0 2018 Jakarta/Palembang WLF silver: heavyweight -105 kg |