Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Farhan Jassim Mohammed | WRE | Olympics | 1988 | 0–2–0 1982 New Delhi WRE silver: freestyle super-heavyweight +100 kg; 1986 Seoul WRE silver: freestyle super-heavyweight -130 kg | |
| Emad Jassim | FBL | Olympics | 1984 | 1–0–0 1982 New Delhi FBL gold | |
| Saad Jassim | FBL | Olympics | 1980 | 1–0–0 1982 New Delhi FBL gold | |
| Meiliana Jauhari | BDM | Olympics | 2012 | 0–0–1 2010 Guangzhou BDM bronze: team | |
| Ibrahim Javadi | WRE | Olympics | 1972 | 2–0–0 1970 Bangkok WRE gold: freestyle light-flyweight -48 kg; 1974 Tehran WRE gold: freestyle flyweight -52 kg | |
| Ahad Javan Saleh | WRE | Olympics | 1988—1992 | 0–0–1 1986 Seoul WRE bronze: Greco-Roman featherweight -62 kg | |
| Susanthika Jayasinghe | ATH | Olympics / Opening Flagbearer / Closing Flagbearer | 1996—2008 | 1–2–1 1994 Hiroshima ATH silver: 200 m; 2002 Busan ATH gold: 100 m; 2006 Doha ATH silver: 100 m, bronze: 200 m | |
| Chandrasena Jayasuriya | BOX | Olympics | 1956 | 0–0–1 1954 Manila BOX bronze: featherweight -57 kg | |
| Henry Jayasuriya | BOX | Olympics / Non-starter | 1952—1956 | 0–1–0 1954 Manila BOX silver: bantamweight -54 kg | |
| César Jayme | SHO | Olympics | 1948—1960 | 0–2–0 1954 Manila SHO silver: 50 m small-bore rifle prone; 1958 Tokyo SHO silver: 50 m small-bore rifle prone | |
| Ruth Jebet | ATH | Olympics | 2016 | 1–0–0 2014 Incheon ATH gold: 3000 m steeplechase | |
| Mani Jegathesan | ATH | Olympics | 1960—1968 | 4–2–1 1962 Jakarta ATH gold: 200 m, silver: 100 m and 4×400 m relay, bronze: 4×100 m relay (competed for Malaya); 1966 Bangkok ATH gold: 100 m, 200 m, and 4×100 m relay (competed for Malaysia) | |
| Jeon Byeong-Guk | WLF | Olympics | 1988 | 1–0–0 1986 Seoul WLF gold: middle-heavyweight -90 kg | |
| Jeon Byeong-Gwan | WLF | Olympics | 1988—1996 | 2–0–0 1990 Beijing WLF gold: bantamweight -56 kg; 1994 Hiroshima WLF gold: bantamweight -59 kg | |
| Jeon Chan-Sik | SHO | Olympics | 2000 | 0–1–0 1990 Beijing SHO silver: skeet team | |
| Jeon Gwang-Rak | CSP | Olympics | 1996 | 0–1–1 1998 Bangkok CSP silver: C2 500 m; 2002 Busan CSP bronze: C2 500 m | |
| Jeon Hui-Cheol | BKB | Olympics | 1996 | 1–1–0 1994 Hiroshima BKB silver; 2002 Busan BKB gold | |
| Jeon Hui-Suk | FEN | Olympics | 2012—2020 | 5–0–2 2006 Doha FEN gold: foil team; 2010 Guangzhou FEN gold: foil team, bronze: foil; 2014 Incheon FEN gold: foil and foil team; 2018 Jakarta/Palembang FEN gold: foil, bronze: foil team | |
| Jeon In-Su | ARC | Olympics | 1984—1988 | 1–0–3 1986 Seoul ARC gold: team, bronze: 30 m double, 70 m double, and 90 m double | |
| Jeon Jae-Yeon | BDM | Olympics | 2004—2008 | 0–1–1 2002 Busan BDM silver: team; 2006 Doha BDM bronze: team | |
| Jeon Jong-Ha | HOC | Olympics | 1996—2004 | 2–0–0 1994 Hiroshima HOC gold; 2002 Busan HOC gold | |
| Jeon Ju-Won | BKB | Olympics / Coach | 1996—2020 | 1–1–1 1994 Hiroshima BKB gold; 1998 Bangkok BKB bronze; 2002 Busan BKB silver | |
| Jeon Mi-Gyeong | FEN | Olympics | 1992—1996 | 1–0–1 1994 Hiroshima FEN bronze: foil team; 1998 Bangkok FEN gold: foil team | |
| Jeon Sang-Gyun | WLF | Olympics | 2008—2012 | 0–1–0 2010 Guangzhou WLF silver: super-heavyweight +105 kg | |
| Jeon Sang-Seok | WLF | Olympics | 1992—1996 | 0–1–0 1990 Beijing WLF silver: heavyweight -110 kg | |
| Jeon Ung-Tae | MPN | Olympics / Closing Flagbearer | 2016—2024 | 1–0–0 2018 Jakarta/Palembang MPN gold: individual | |
| Jeon Yeong-Eun | ATH | Olympics | 2012—2016 | 0–0–1 2014 Incheon ATH bronze: 20 km walk | |
| Jeon Yu-Mi | HOC | Olympics | 2012 | 0–1–0 2010 Guangzhou HOC silver | |
| Jeong Bo-Gyeong | JUD | Olympics | 2016 | 1–1–1 2014 Incheon JUD silver: team, bronze: extra-lightweight -48 kg; 2018 Jakarta/Palembang JUD gold: extra-lightweight -48 kg | |
| Jeong Bu-Jin | HOC | Olympics | 1988 | 1–0–0 1986 Seoul HOC gold | |
| Jeong Bu-Yeong | ROW | Olympics | 1988 | 0–0–1 1986 Seoul ROW bronze: eights | |
| Jeong Da-Rae | SWM | Olympics | 2008—2012 | 1–0–0 2010 Guangzhou SWM gold: 200 m breaststroke | |
| Jeong Da-Un | JUD | Olympics | 2012 | 1–1–0 2014 Incheon JUD gold: half-middleweight -63 kg, silver: team | |
| Jeong Dae-Hyeon | BBL | Olympics | 2000—2008 | 1–0–0 2010 Guangzhou BSB gold | |
| Jeong Dae-Jin | WLF | Olympics | 1992 | 0–1–0 1994 Hiroshima WLF silver: heavyweight II -108 kg | |
| Jeong Dae-Yeong | VVO | Olympics | 2004—2012 | 0–2–0 2002 Busan VVO silver; 2010 Guangzhou VVO silver | |
| Jeong Dong-Gi | VVO | Olympics | 1972 | 0–1–0 1970 Bangkok VVO silver | |
| Jeong Dong-Hun | BOX | Olympics | 1956 | 1–0–0 1958 Tokyo BOX gold: lightweight -60 kg | |
| Jeong Du-Hui | SWM | Olympics | 2004 | 0–1–1 2006 Doha SWM bronze: 4×100 m medley relay; 2010 Guangzhou SWM silver: 4×100 m medley relay | |
| Jeong Eun-Gyeong | HOC | Olympics | 1988 | 1–0–0 1986 Seoul HOC gold | |
| Jeong Eun-Hui | HBL | Olympics | 2000 | 1–0–0 2002 Busan HBL gold | |
| Jeong Eun-Sun | BKB | Olympics / Opening Flagbearer | 1996—2000 | 2–0–0 1990 Beijing BKB gold; 1994 Hiroshima BKB gold | |
| Jeong Gang-Uk | HBL | Olympics | 1992 | 2–0–0 1994 Hiroshima HBL gold; 1998 Bangkok HBL gold | |
| Jeong Geun-U | BBL | Olympics | 2008 | 1–0–1 2006 Doha BSB bronze; 2010 Guangzhou BSB gold | |
| Jeong Gil-Ok | FEN | Olympics | 2008—2012 | 1–0–0 2006 Doha FEN gold: foil team | |
| Jeong Guk-Jin | FBL | Olympics | 1948 | 0–1–0 1954 Manila FBL silver | |
| Jeong Gwang-Seok | FBL | Olympics | 1992 | 0–0–1 1990 Beijing FBL bronze | |
| Jeong Gye-Seok | HOC | Olympics | 1988 | 1–0–0 1986 Seoul HOC gold | |
| Jeong Gyeong-Eun | BDM | Olympics | 2012—2016 | 0–1–0 2014 Incheon BDM silver: team | |
| Jeong Gyeong-Mi | JUD | Olympics | 2008—2012 | 2–0–0 2010 Guangzhou JUD gold: half-heavyweight -78 kg; 2014 Incheon JUD gold: half-heavyweight -78 kg | |
| Jeong Hun | JUD | Olympics | 1992 | 2–0–0 1990 Beijing JUD gold: lightweight -71 kg; 1994 Hiroshima JUD gold: lightweight -71 kg | |
| Jeong Hye-Rim | ATH | Olympics | 2012 | 1–0–0 2018 Jakarta/Palembang ATH gold: 100 m hurdles | |
| Jeong Hyo-Jeong | FEN | Olympics | 2008—2012 | 0–1–1 2006 Doha FEN silver: épée team; 2010 Guangzhou FEN bronze: épée team | |
| Jeong In-Gyo | ROW | Olympics | 1988 | 0–0–1 1986 Seoul ROW bronze: coxed pais | |
| Jeong Jae-Geun | BKB | Olympics | 1996 | 0–2–1 1990 Beijing BKB bronze; 1994 Hiroshima BKB silver; 1998 Bangkok BKB silver | |
| Jeong Jae-Heon | ARC | Olympics | 1992 | 1–1–0 1994 Hiroshima ARC gold: team, silver: individual | |
| Jeong Jae-Hui | BDM | Olympics | 1996—2000 | 0–1–1 1998 Bangkok BDM silver: team, bronze: doubles | |
| Jeong Jae-Seong | BDM | Olympics | 2008—2012 | 0–2–2 2006 Doha BDM silver: team, bronze: doubles; 2010 Guangzhou BDM silver: team, bronze: doubles | |
| Jeong Jeom-Sik | CTR | Olympics | 1988 | 0–0–1 1990 Beijing CRD bronze: 4000 m pursuit team | |
| Jeong Ji-Hae | HBL | Olympics | 2012 | 2–0–1 2010 Guangzhou HBL bronze; 2014 Incheon HBL gold; 2018 Jakarta/Palembang HBL gold | |
| Jeong Ji-Hyeon | WRE | Olympics | 2004—2012 | 1–1–0 2010 Guangzhou WRE silver: Greco-Roman lightweight -60 kg; 2014 Incheon WRE gold: Greco-Roman light-middleweight -71 kg | |
| Jeong Jin-Hwa | MPN | Olympics | 2012—2020 | 0–1–1 2014 Incheon MPN silver: individual, bronze: team | |
| Jeong Jin-Seon | FEN | Olympics | 2008—2016 | 4–0–2 2006 Doha FEN gold: épée team; 2010 Guangzhou FEN gold: épée team; 2014 Incheon FEN gold: épée and épée team; 2018 Jakarta/Palembang FEN bronze: épée and épée team | |
| Jeong Jin-Su | GAR | Olympics | 1992—2000 | 0–2–1 1990 Beijing GAR bronze: team; 1994 Hiroshima GAR silver: parallel bars and team | |
| Jeong Mi-Gyeong | BKB | Olympics | 1988 | 1–0–0 1990 Beijing BKB gold | |
| Jeong Mi-Ra | SHO | Olympics | 2012 | 1–2–1 2014 Incheon SHO gold: 50 m small-bore rifle prone team, silver: 50 m small-bore rifle 3 positions and 50 m small-bore rifle 3 positions team, bronze: 10 m air rifle team | |
| Jeong Min-Tae | BBL | Olympics | 2000 | 0–0–0 1990 Beijing BSB silver (demonstration event) | |
| Jeong Min-Tae | BBL | Olympics | 2000 | 0–0–0 1990 Beijing BSB silver (demonstration event) | |
| Jeong Myeong-Hui | BDM | Non-Medal | 1988 | 2–0–2 1986 Seoul BDM gold: mixed doubles, bronze: team; 1990 Beijing BDM gold: mixed doubles, bronze: team | |
| Jeong Nam-Sik | FBL | Olympics | 1948 | 0–1–0 1954 Manila FBL silver | |
| Jeong Ryo-Hwan | FBL | Olympics | 1988 | 1–0–1 1986 Seoul FBL gold; 1990 Beijing FBL bronze | |
| Jeong Sang-Hyeon | HOC | Olympics | 1988 | 1–1–0 1982 New Delhi HOC silver; 1986 Seoul HOC gold | |
| Jeong Seon-Hye | VVO | Olympics | 1996—2000 | 1–2–0 1994 Hiroshima VVO gold; 1998 Bangkok VVO silver; 2002 Busan VVO silver | |
| Jeong Seon-Min | BKB | Olympics | 1996—2008 | 1–1–1 1994 Hiroshima BKB gold; 1998 Bangkok BKB bronze; 2002 Busan BKB silver | |
| Jeong Seon-Yong | JUD | Olympics / Non-Medal | 1988—1996 | 1–0–0 1994 Hiroshima JUD gold: lightweight -56 kg | |
| Jeong Seong-Suk | JUD | Olympics | 1996—2000 | 1–0–1 1994 Hiroshima JUD gold: half-middleweight -61 kg; 1998 Bangkok JUD bronze: lightweight -57 kg | |
| Jeong Seul-Gi | SWM | Olympics | 2008 | 0–0–2 2006 Doha SWM bronze: 200 m breaststroke and 4×100 m medley relay | |
| Jeong Seung-Hwa | FEN | Olympics | 2016 | 1–0–0 2010 Guangzhou FEN gold: épée team | |
| Jeong Sin-Jo | BOX | Olympics | 1960—1964 | 1–0–0 1962 Jakarta BOX gold: flyweight -51 kg | |
| Jeong So-Yeong | BDM | Olympics / Non-Medal | 1988—1992 | 2–3–2 1986 Seoul BDM silver: mixed doubles, bronze: team; 1990 Beijing BDM silver: doubles, bronze: team; 1994 Hiroshima BDM gold: mixed doubles and team, silver: doubles | |
| Jeong Su-Gi | FEN | Olympics | 1996 | 1–0–0 1994 Hiroshima FEN gold: foil team | |
| Jeong Su-Yeong | HBL | Olympics | 2008—2012 | 1–1–1 2010 Guangzhou HBL gold; 2014 Incheon HBL silver; 2018 Jakarta/Palembang HBL bronze | |
| Jeong Sun-Ok | VVO | Olympics | 1976 | 0–1–0 1974 Tehran VVO silver | |
| Jeong Sun-Ok | ATH | Olympics | 2008 | 1–0–0 2010 Guangzhou ATH gold: long jump | |
| Jeong Ui-Gyeong | HBL | Olympics | 2008—2012 | 1–1–1 2010 Guangzhou HBL gold; 2014 Incheon HBL silver; 2018 Jakarta/Palembang HBL bronze | |
| Jeong Ui-Tak | VVO | Olympics | 1984—1988 | 0–1–0 1990 Beijing VVO silver | |
| Jeong Won-Yong | SWM | Olympics | 2012 | 0–0–1 2010 Guangzhou SWM bronze: 4×100 m freestyle relay (swam in heats only) | |
| Jeong Yeong-Hun | CTR | Olympics | 1996 | 1–0–0 1994 Hiroshima CRD gold: 4000 m pursuit team | |
| Jeong Yeong-Hwan | FBL | Non-starter | 1964 | 0–1–0 1962 Jakarta FBL silver | |
| Jeong Yong-Gyun | HOC | Olympics | 1996 | 0–1–0 1998 Bangkok HOC silver | |
| Jeong Yu-Ra | HBL | Olympics | 2012—2020 | 2–0–0 2014 Incheon HBL gold; 2018 Jakarta/Palembang HBL gold | |
| Ji Dong-Won | FBL | Olympics | 2012 | 0–0–1 2010 Guangzhou FBL bronze | |
| Ji Gang | SHO | Olympics | 1988 | 3–0–0 1990 Beijing SHO gold: 50 m running target men, 50 m running target team men, and 50 m running target team mixed | |
| Ji Gyeong-Hui | VVO | Olympics | 1988 | 0–1–1 1986 Seoul VVO bronze; 1990 Beijing VVO silver | |
| Ji Jae-Gwan | HOC | Olympics | 1988 | 1–0–0 1986 Seoul HOC gold | |
| Ji Jeong-Mi | ATH | Olympics | 1988 | 0–0–1 1986 Seoul ATH bronze: heptathlon | |
| Ji Kyong-Sun | JUD | Olympics | 2000 | 0–1–0 2002 Busan JUD silver: half-middleweight -63 kg | |
| Ji Liping | SWM | Olympics | 2012 | 2–1–1 2006 Doha SWM gold: 50 m breaststroke, silver: 100 m breaststroke; 2010 Guangzhou SWM gold: 100 m breaststroke, bronze: 200 m breaststroke | |
| Ji Sang-Jun | SWM | Olympics | 1992—1996 | 2–1–2 1990 Beijing SWM gold: 200 m backstroke, bronze: 4×200 m freestyle relay and 4×100 m medley relay; 1994 Hiroshima SWM gold: 200 m backstroke, silver: 4×200 m freestyle relay | |
| Ji Seong-Hwan | HOC | Olympics | 2000—2004 | 1–0–0 2002 Busan HOC gold | |
| Ji Seung-Hwan | CTR | Olympics | 1992 | 3–0–0 1994 Hiroshima CRD gold: 4000 m pursuit team; 1998 Bangkok CRD gold: 1000 m track time trial and 4000 m pursuit team | |
| Ji Yeong-Jun | ATH | Olympics | 2004 | 1–0–0 2010 Guangzhou ATH gold: marathon | |
| Ji Yong-Ju | BOX | Olympics | 1968 | 1–0–0 1970 Bangkok BOX gold: flyweight -51 kg | |
| Ji Yong-Ju | BOX | Olympics | 1968 | 1–0–0 1970 Bangkok BOX gold: flyweight -51 kg | |
| Ji Zebiao | ATH | Olympics | 1984 | 1–0–0 1986 Seoul ATH gold: pole vault | |
| Ji Zhaoguang | BKB | Olympics | 1984 | 0–1–0 1982 New Delhi BKB silver | |
| Jia Guihua | FEN | Olympics | 1988—1992 | 1–0–0 1990 Beijing FEN gold: sabre team | |
| Jia Rui | WSU | Non-Medal | 2008 | 1–2–0 2006 Doha WUS silver: Changquan, Daoshu & Gunshu; 2010 Guangzhou WUS gold: Daoshu & Gunshu; 2014 Incheon WUS silver: Changquan | |
| Jiang Chengji | SWM | Olympics | 1996—2000 | 2–2–0 1994 Hiroshima SWM gold: 100 m butterfly, silver: 50 m freestyle and 4×100 m medley relay; 1998 Bangkok SWM gold: 50 m freestyle | |
| Jiang Cuihua | CTR | Olympics | 2000 | 0–1–0 1998 Bangkok CRD silver: sprint | |
| Jiang Fan | CTR | Olympics | 2012 | 1–1–0 2010 Guangzhou CRD gold: 3000 m pursuit individual, silver: individual road time trial | |
| Jiang Fudong | VVO | Olympics | 2008 | 0–1–0 2006 Doha VVO silver | |
| Jiang Haiqi | SWM | Olympics | 2012 | 2–0–0 2010 Guangzhou SWM gold: 4×100 m freestyle relay and 4×200 m freestyle relay | |
| Jiang Haiyang | ROW | Olympics | 1992 | 1–0–0 1990 Beijing ROW gold: eights | |
| Jiang Kelu | FEN | Olympics | 2012 | 1–0–0 2010 Guangzhou FEN gold: sabre team | |
| Jiang Lan | ATH | Olympics | 2008 | 0–1–0 2010 Guangzhou ATH silver: 4×100 m relay | |
| Jiang Rong | SHO | Olympics | 1984—1992 | 2–3–1 1986 Seoul SHO silver: 50 m small-bore rifle prone team and 50 m small-bore rifle 3 positions team; 1990 Beijing SHO gold: 50 m small-bore rifle prone team, silver: 50 m small-bore rifle 3 positions team; 1994 Hiroshima SHO gold: 50 m small-bore rifle prone team, bronze: 50 m small-bore rifle 3 positions team | |
| Jiang Tao | BOX | Olympics | 1996 | 0–0–1 1994 Hiroshima BOX bronze: heavyweight -91 kg | |
| Jiang Tao | BOX | Olympics | 1996 | 0–0–1 1994 Hiroshima BOX bronze: heavyweight -91 kg | |
| Jiang Tingting | SWA | Olympics | 2008—2012 | 6–0–0 2006 Doha SWA gold: duet and team; 2010 Guangzhou SWA gold: duet, team, and combination; 2018 Jakarta/Palembang gold: duet | |
| Jiang Wenwen | CTR | Olympics | 2012 | 1–0–0 2014 Incheon CRD gold: 3000 m pursuit team | |
| Jiang Wenwen | SWA | Olympics | 2008—2012 | 6–0–0 2006 Doha SWA gold: duet and team; 2010 Guangzhou SWA gold: duet, team, and combination; 2018 Jakarta/Palembang gold: duet | |
| Jiang Xin | BDM | Olympics | 1996 | 0–0–2 1994 Hiroshima BDM bronze: doubles and team | |
| Jiang Xishang | HOC | Olympics | 2008 | 0–1–0 2006 Doha HOC silver | |
| Jiang Yanmei | BDM | Olympics | 2004—2008 | 0–0–1 2006 Doha BDM bronze: team | |
| Jiang Yefei | FEN | Olympics / Referee | 1992—2016 | 1–0–0 1990 Beijing FEN gold: sabre team | |
| Jiang Ying | VVO | Olympics | 1984—1988 | 2–0–0 1982 New Delhi VVO gold; 1986 Seoul VVO gold | |
| Jiang Yonghua | CTR | Olympics | 2004 | 1–0–0 2002 Busan CRD gold: 500 m track time trial | |
| Jiang Yuyuan | GAR | Olympics | 2008 | 1–0–0 2010 Guangzhou GAR gold: team | |
| Jiao Huafeng | WRE | Olympics | 2008 | 1–0–0 2006 Doha WRE gold: Greco-Roman featherweight -55 kg | |
| Jiao Liuyang | SWM | Olympics | 2008—2012 | 4–0–0 2010 Guangzhou SWM gold: 100 m butterfly, 200 m butterfly, and 4×100 m medley relay; 2014 Incheon SWM gold: 200 m butterfly | |
| Sutiya Jiewchaloemmit | SHO | Olympics | 2008—2020 | 1–0–4 2010 Guangzhou SHO bronze: skeet and skeet team; 2014 Incheon SHO bronze: skeet and skeet team; 2018 Jakarta/Palembang SHO gold: skeet | |
| Jigjidiin Mönkhbat | WRE | Olympics | 1964—1972 | 0–0–1 1974 Tehran WRE bronze: Greco-Roman light-heavyweight -90 kg | |
| Tatsuo Jihira | WPO | Olympics | 1972 | 1–0–0 1970 Bangkok WPO gold | |
| Elizabeth Jimie | DIV | Olympics / Closing Flagbearer | 2008 | 0–0–2 2006 Doha DIV bronze: 1 m springboard and synchronised springboard | |
| Jin Deok-San | HOC | Olympics | 1992—1996 | 1–0–0 1994 Hiroshima HOC gold | |
| Jin Di | SHO | Olympics | 2000—2008 | 1–2–5 2002 Busan SHO silver: skeet, bronze: skeet team; 2006 Doha SHO bronze: skeet and skeet team; 2010 Guangzhou SHO bronze: skeet team; 2014 Incheon SHO gold: skeet team, bronze: skeet; 2018 Jakarta/Palembang SHO silver: skeet | |
| Jin Dongxiang | SHO | Olympics | 1984 | 5–0–2 1978 Bangkok SHO gold: 50 m small-bore rifle 3 positions team and 50 m standard rifle 3 positions team, bronze: 50 m small-bore rifle prone team; 1982 New Delhi SHO gold: 50 m small-bore rifle 3 positions team and 50 m standard rifle 3 positions team; 1986 Seoul SHO gold: 50 m small-bore rifle 3 positions team, bronze: 50 m small-bore rifle 3 positions | |
| Jin Fu | SWM | Olympics | 1984—1988 | 1–2–1 1982 New Delhi SWM silver: 200 m breaststroke, bronze: 100 m breaststroke; 1986 Seoul SWM gold: 100 m breaststroke, silver: 4×100 m medley relay | |
| Jin Gap-Yong | BBL | Olympics | 1996—2008 | 1–1–0 1994 Hiroshima BSB silver; 1998 Bangkok BSB gold | |
| Jin Gap-Yong | BBL | Olympics | 1996—2008 | 1–1–0 1994 Hiroshima BSB silver; 1998 Bangkok BSB gold | |
| Jin Hao | SWM | Olympics | 2000 | 1–1–1 2002 Busan SWM gold: 4×100 m freestyle relay, silver: 4×100 m medley relay, bronze: 100 m butterfly | |
| Jin Jang-Rim | SWM | Olympics | 1964 | 0–0–1 1962 Jakarta SWM bronze: 100 m breaststroke | |
| Jin Jong-Oh | SHO | Olympics | 2004—2020 | 3–4–4 2002 Busan SHO silver: 50 m free pistol team, bronze: 10 m air pistol; 2006 Doha SHO silver: 10 m air pistol team, bronze: 10 m air pistol and 50 m free pistol team; 2010 Guangzhou SHO gold: 10 m air pistol team and 50 m free pistol team, silver: 50 m free pistol; 2014 Incheon SHO gold: 10 m air pistol team, silver: 50 m free pistol team, bronze: 10 m air pistol | |
| Jin Ju-Dong | WRE | Olympics | 2000 | 1–0–0 1998 Bangkok WRE gold: freestyle bantamweight -54 kg | |
| Jin Jun-Taek | VVO | Olympics | 1972 | 0–3–0 1966 Bangkok VVO silver; 1970 Bangkok VVO silver; 1974 Tehran VVO silver | |
| Jin Ling | ATH | Olympics | 1988 | 0–1–0 1998 Bangkok ATH silver: high jump | |
| Jin Sun-Ryeong | SHO | Olympics | 1996 | 0–1–0 1990 Beijing SHO silver: 10 m air rifle team | |
| Jin Won-Sim | HOC | Olympics | 1988 | 2–1–0 1982 New Delhi HOC silver; 1986 Seoul HOC gold; 1990 Beijing HOC gold | |
| Jin Xianglan | JUD | Olympics | 1992 | 1–0–0 1990 Beijing JUD gold: half-middleweight -61 kg | |
| Jin Yan | FBL | Olympics | 2000 | 1–0–0 1998 Bangkok FBL gold | |
| Jing Yali | CTR | Olympics | 2016 | 1–0–0 2014 Incheon CRD gold: 3000 m pursuit team | |
| Toshio Jingu | FEN | Olympics | 1976 | 2–0–0 1974 Tehran FEN gold: foil and foil team | |
| Kimiko Jinnai | BDM | Olympics | 1992 | 0–2–2 1982 New Delhi BDM silver: team; 1986 Seoul BDM silver: team, bronze: doubles; 1990 Beijing BDM bronze: team | |
| Hitomi Jinno | SWM | Olympics | 1956—1960 | 1–0–1 1958 Tokyo SWM gold: 4×100 m freestyle relay, bronze: 100 m freestyle | |
| Masahide Jinno | ATH | Olympics | 1976 | 1–3–0 1970 Bangkok ATH gold: 100 m, silver: 200 m and 4×100 m relay; 1974 Tehran ATH silver: 100 m | |
| Taworn Jirapan | CRD | Olympics | 1964 | 1–1–0 1962 Jakarta CRD gold: road race, silver: road race team | |
| Jo Beom-Yeon | HBL | Olympics | 1992—2000 | 3–0–0 1990 Beijing HBL gold; 1994 Hiroshima HBL gold, 1998 Bangkok HBL gold | |
| Jo Bo-Ra | HOC | Olympics | 2000 | 1–0–0 1998 Bangkok HOC gold | |
| Jo Byeong-Deuk | FBL | Olympics | 1988 | 2–0–0 1978 Bangkok FBL gold; 1986 Seoul FBL gold | |
| Jo Byeong-Guk | FBL | Olympics | 2004 | 0–0–1 2002 Busan FBL bronze | |
| Jo Byeong-Gwan | WRE | Olympics | 2008 | 1–1–0 2002 Busan WRE gold: freestyle middleweight -74 kg; 2006 Doha WRE silver: freestyle middleweight -74 kg | |
| Jo Byeong-On | WRE | Olympics | 1988 | 0–0–1 1990 Beijing WRE bronze: freestyle super-heavyweight -130 kg | |
| Jo Chang-Je | DIV | Olympics | 1964 | 0–0–1 1962 Jakarta DIV bronze: platform | |
| Jo Chi-Hyo | HBL | Olympics | 1992—2008 | 2–0–0 1990 Beijing HBL gold; 1994 Hiroshima HBL gold | |
| Jo Deok-Haeng | CRD | Olympics | 1988 | 0–0–1 1990 Beijing CRD bronze: road time trial team | |
| Jo Eun-Hui | HBL | Olympics | 1996 | 1–0–0 1990 Beijing HBL gold | |
| Jo Eun-Jeong | HOC | Olympics | 1996 | 1–0–0 1994 Hiroshima HOC gold | |
| Jo Eun-Ji | HOC | Non-starter | 2012 | 1–0–0 2014 Incheon HOC gold | |
| Jo Eun-Yeong | SHO | Olympics | 2004 | 2–1–0 1994 Hiroshima SHO gold: 50 m small-bore rifle prone and 50 m small-bore rifle prone team, silver: 50 m small-bore rifle 3 positions team | |
| Jo Geon-Haeng | CRD | Olympics | 1984 | 0–1–0 1986 Seoul CRD silver: 4000 m pursuit team | |
| Jo Gi-Hyang | HOC | Olympics | 1988 | 1–1–0 1982 New Delhi HOC silver; 1986 Seoul HOC gold | |
| Jo Gu-Ham | JUD | Olympics | 2016—2020 | 0–1–2 2014 Incheon JUD bronze: half-heavyweight -100 kg; 2018 Jakarta/Palembang JUD silver: half-heavyweight -100 kg, bronze: team | |
| Jo Gwang-Hui | CSP | Olympics | 2016—2020 | 2–1–0 2014 Incheon CSP gold: K1 200 m; 2018 Jakarta/Palembang CSP gold: K1 200 m, silver: K4 500 m | |
| Jo Gyeong-Hwan | BBL | Olympics | 1996 | 0–1–0 1994 Hiroshima BSB silver | |
| Jo Gyeong-Hwan | BBL | Olympics | 1996 | 0–1–0 1994 Hiroshima BSB silver | |
| Jo Ho-Seong | CTR | Olympics | 1996—2012 | 5–2–0 1994 Hiroshima CRD gold: points race; 1998 Bangkok CRD gold: 4000 m pursuit team, silver: points race; 2002 Busan CRD gold: points race and madison; 2010 Guangzhou CRD gold: 4000 m pursuit team; 2014 Incheon CRD silver: omnium | |
| Jo Hui-Je | FEN | Olympics | 1988 | 1–0–0 1990 Beijing FEN gold: épée team | |
| Jo Hye-Jeong | VVO | Olympics / Olympic Flagbearer | 1972—1988 | 0–2–0 1970 Bangkok VVO silver; 1974 Tehran VVO silver | |
| Jo Hye-Jin | BKB | Olympics | 2004 | 1–0–1 1994 Hiroshima BKB gold; 1998 Bangkok BKB bronze | |
| Jo Hyeon-Ju | GAR | Olympics | 2008 | 0–0–1 2010 Guangzhou GAR bronze: floor | |
| Jo Hyeon-Uk | ATH | Olympics | 1988—1996 | 0–0–1 1990 Beijing ATH bronze: high jump | |
| Jo In-Cheol | JUD | Olympics | 1996—2000 | 1–0–0 1998 Bangkok JUD gold: half-middleweight -81 kg | |
| Jo In-Seong | BBL | Olympics | 1996 | 1–0–1 1998 Bangkok BSB gold; 2006 Doha BSB bronze | |
| Jo In-Seong | BBL | Olympics | 1996 | 1–0–1 1998 Bangkok BSB gold; 2006 Doha BSB bronze | |
| Jo Jae-Hak | VVO | Olympics | 1976 | 0–1–0 1970 Bangkok VVO silver | |
| Jo Min-Guk | FBL | Olympics | 1988 | 1–0–0 1986 Seoul FBL gold | |
| Jo Min-Seon | JUD | Olympics / Non-Medal | 1988—2000 | 0–1–1 1990 Beijing JUD bronze: lightweight -56 kg; 1994 Hiroshima JUD silver: middleweight -66 kg | |
| Jo Mun-Ju | BKB | Olympics | 1988 | 1–1–0 1986 Seoul BKB silver; 1990 Beijing BKB gold | |
| Jo Myeong-Jun | HOC | Olympics / Coach | 1996—2016 | 1–1–0 1994 Hiroshima HOC gold; 1998 Bangkok HOC silver | |
| Jo Oh-Ryeon | SWM | Olympics | 1972 | 4–1–0 1970 Bangkok SWM gold: 400 m freestyle and 1500 m freestyle; 1974 Tehran SWM gold: 400 m freestyle and 1500 m freestyle, silver: 200 m freestyle | |
| Jo Ryon-Sik | BOX | Olympics | 1980 | 1–0–0 1982 New Delhi BOX gold: featherweight -57 kg | |
| Jo Ryon-Sik | BOX | Olympics | 1980 | 1–0–0 1982 New Delhi BOX gold: featherweight -57 kg | |
| Jo Seong-Hwan | CRD | Olympics | 1964 | 1–1–1 1966 Bangkok CRD silver: road time trial team; 1970 Bangkok CRD gold: road race team, bronze: road time trial team | |
| Jo Seong-Min | SAL | Olympics | 2012—2020 | 0–1–1 2010 Guangzhou SAL bronze: match racing; 2014 Incheon SAL silver: match racing | |
| Jo Seong-Min | GAR | Olympics | 1996—2004 | 0–1–0 1998 Bangkok GAR silver: team | |
| Jo Seong-Mo | SWM | Olympics | 2000—2004 | 0–1–0 2002 Busan SWM silver: 1500 m freestyle | |
| Jo Yeong-Cheol | FBL | Olympics | 2008 | 0–0–1 2010 Guangzhou FBL bronze | |
| Jo Yeong-Sin | HBL | Olympics | 1992 | 2–0–0 1990 Beijing HBL gold; 1994 Hiroshima HBL gold | |
| Jo Yong-Cheol | JUD | Olympics | 1984—1988 | 0–1–0 1986 Seoul JUD silver: open class |