Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Wickramesinghe Wimaladasa | ATH | Olympics | 1972 | 2–1–0 1970 Bangkok ATH silver: 400 m; 1974 Tehran ATH gold: 400 m and 4×400 m relay | |
| Ranga Wimalawansa | ATH | Olympics | 2000 | 0–0–1 2002 Busan ATH bronze: 4×400 m relay | |
| Win Kay Thi | WLF | Olympics | 2000 | 0–2–0 1998 Bangkok WLF silver: flyweight -48 kg; 2002 Busan WLF silver: flyweight -48 kg | |
| Win Maung | BOX | Olympics | 1972 | 0–1–1 1966 Bangkok BOX bronze: bantamweight -54 kg; 1970 Bangkok BOX silver: bantamweight -54 kg | |
| Win Maung | FBL | Olympics / Opening Flagbearer | 1972 | 1–0–0 1970 Bangkok FBL gold | |
| Win Maung | BOX | Olympics | 1972 | 0–1–1 1966 Bangkok BOX bronze: bantamweight -54 kg; 1970 Bangkok BOX silver: bantamweight -54 kg | |
| Win Swe Swe | WLF | Olympics | 2000 | 0–0–1 1998 Bangkok WLF bronze: featherweight -53 kg | |
| Ardy Wiranata | BDM | Olympics | 1992 | 1–0–1 1990 Beijing BDM bronze: team; 1994 Hiroshima BDM gold: team | |
| Bonit Wiryawan | TEN | Olympics | 1992 | 0–1–3 1990 Beijing TEN bronze: doubles, team, and mixed doubles; 1994 Hiroshima TEN silver: team | |
| Wiebe Wolters | WPO | Olympics | 1956 | 2–3–0 1951 New Delhi SWM gold: 4×100 m freestyle relay, silver: 100 m freestyle, WPO silver; 1954 Manila SWM silver: 4×200 m freestyle relay (swam in heats only), WPO gold | |
| Won Chang-Yong | CTR | Olympics | 1992 | 0–0–1 1994 Hiroshima CRD bronze: 1000 m track time trial | |
| Won Ok-Im | JUD | Olympics | 2008 | 0–0–1 2006 Doha JUD bronze: half-middleweight -63 kg | |
| Won Sin-Hui | WLF | Olympics | 1968—1972 | 3–1–1 1966 Bangkok WLF bronze: lightweight -67.5 kg; 1970 Bangkok WLF silver: lightweight -67.5 kg; 1974 Tehran WLF lightweight -67.5 kg gold: snatch, clean & jerk, and total | |
| Won U-Yeong | FEN | Olympics | 2012 | 1–2–0 2006 Doha FEN silver: sabre team; 2010 Guangzhou FEN silver: sabre team; 2014 Incheon FEN gold: sabre team | |
| Wong Chi-Keung | FBL | Olympics | 1960 | 1–0–0 1958 Tokyo FBL gold | |
| Wong Choon Hin | HOC | Olympics | 1972—1976 | 0–0–1 1974 Tehran HOC bronze | |
| Wong Choong Hann | BDM | Olympics | 2000—2008 | 0–0–3 1998 Bangkok BDM bronze: team; 2002 Busan BDM bronze: team; 2006 Doha BDM bronze: team | |
| Jamie Wong | CRD/CTR | Olympics | 2008—2012 | 0–1–1 2010 Guangzhou CRD silver: points race; 2014 Incheon CRD bronze: individual road time trial | |
| Wong Kam Fook | FBL | Olympics | 1972 | 0–0–1 1974 Tehran FBL bronze | |
| Wong Kam Po | CRD/CTR | Olympics / Opening Flagbearer | 1996—2012 | 3–1–2 1998 Bangkok CRD gold: road race; 2002 Busan CRD bronze: road race and madison; 2006 Doha CRD gold: road race; 2010 Guangzhou CRD gold: road race, silver: points race | |
| Wong Pei Tty | BDM | Olympics | 2004—2008 | 0–0–1 2006 Doha BDM bronze: mixed doubles | |
| Woon Khe Wei | BDM | Olympics | 2016 | 0–0–1 2014 Incheon BDM bronze: doubles | |
| Kriengsak Worawut | CTR | Olympics | 1968 | 2–2–0 1970 Bangkok CRD gold: 800 m mass start and 4800 m mass start, silver: 1600 m track time trial team and 4000 m pursuit team | |
| Wu Ah-Min | ATH | Olympics | 1964—1968 | 1–0–0 1966 Bangkok ATH gold: decathlon | |
| Wu Chia-Yen | SBL | Olympics | 2004—2008 | 0–2–0 2002 Busan SOF silver; 2006 Doha SOF silver | |
| Wu Chia-Ying | SHO | Olympics | 2016—2024 | 0–1–0 2014 Incheon SHO silver: 10 m air pistol team | |
| Wu Ching Hui | JUD | Olympics | 1996 | 0–0–1 1994 Hiroshima JUD bronze: half-middleweight -61 kg | |
| Wu Chunlan | SWA | Olympics | 1996 | 0–1–0 1994 Hiroshima SWA silver: solo | |
| Wu Dan | VVO | Olympics | 1988—2000 | 2–0–0 1986 Seoul VVO gold; 1990 Beijing VVO gold | |
| Wu Di | SBL | Olympics | 2004—2008 | 0–0–1 2006 Doha SOF bronze | |
| Wu Haiyan | FBL | Olympics / Non-starter | 2016—2020 | 0–1–0 2018 Jakarta/Palembang FBL silver | |
| Wu Hanxiong | FEN | Olympics | 2004 | 2–0–1 2002 Busan FEN gold: foil team, bronze: foil; 2006 Doha FEN gold: foil team | |
| Wu Hui-Ju | ARC | Olympics | 2004—2008 | 0–0–1 2006 Doha ARC bronze: team | |
| Wu Jiani | GAR | Olympics | 1984 | 3–2–0 1982 New Delhi GAR gold: uneven bars, balance beam, and team, silver: all-around and floor | |
| Wu Jin-Yun | ATH | Olympics | 1960 | 0–0–2 1958 Tokyo ATH bronze: shot put; 1966 Bangkok ATH bronze: shot put | |
| Wu Jingbiao | WLF | Olympics | 2012 | 1–0–1 2010 Guangzhou WLF gold: bantamweight -56 kg; 2014 Incheon WLF bronze: bantamweight -56 kg | |
| Wu Lanying | SHO | Olympics | 1984—1988 | 1–0–1 1978 Bangkok SHO bronze: skeet team; 1990 Beijing SHO gold: skeet team | |
| Wu Liuxi | SHO | Olympics | 2004—2008 | 5–2–1 2006 Doha SHO gold: 10 m air rilfe team and 50 m small-bore rifle 3 positions team, silver: 50 m small-bore rifle prone team; 2010 Guangzhou SHO gold: 10 m air rifle team and 50 m small-bore rifle 3 positions team, silver: 10 m air rifle, bronze: 50 m small-bore rifle 3 positions; 2014 Incheon SHO gold: 10 m air rifle team | |
| Wu Mei-Ling | JUD | Olympics | 1992—1996 | 0–0–2 1994 Hiroshima JUD bronze: middleweight -66 kg; 1998 Bangkok JUD bronze: half-middleweight -63 kg | |
| Wu Meijin | WLF | Olympics | 2004 | 1–0–0 2002 Busan WLF gold: bantamweight -56 kg | |
| Wu Minxia | DIV | Olympics / Olympic Flagbearer | 2004—2016 | 5–1–0 2002 Busan DIV gold: synchronised springboard, silver: 3 m springboard; 2006 Doha DIV gold: 1 m springboard and 3 m springboard; 2010 Guangzhou DIV gold: 1 m springboard and synchronised springboard | |
| Wu Naiqun | BKB | Olympics | 1996 | 1–0–0 1994 Hiroshima BKB gold | |
| Wu Peng | SWM | Olympics | 2004—2012 | 4–2–1 2002 Busan SWM gold: 200 m backstroke, 200 m butterfly, and 400 m medley, silver: 4×200 m freestyle relay; 2006 Doha SWM gold: 200 m butterfly, silver: 4×200 m freestyle relay (swam in heats only); 2010 Guangzhou SWM bronze: 100 m butterfly | |
| Wu Penggen | VBV | Olympics | 2008—2012 | 1–1–0 2006 Doha VBV silver; 2010 Guangzhou VBV gold | |
| Wu Qinglong | BKB | Olympics | 1992—1996 | 1–0–0 1994 Hiroshima BKB gold | |
| Wu Shude | WLF | Olympics | 1984 | 1–0–0 1982 New Delhi WLF gold: bantamweight -56 kg | |
| Wu Shugen | JUD | Olympics | 2008—2012 | 1–0–1 2010 Guangzhou JUD gold: extra-lightweight -48 kg; 2014 Incheon JUD bronze: team | |
| Wu Shuijiao | ATH | Olympics | 2016 | 1–0–0 2014 Incheon ATH gold: 100 m hurdles | |
| Wu Tao | ATH | Olympics | 2004 | 1–0–0 2002 Busan ATH gold: discus throw | |
| Wu Tao-Yan | SHO | Olympics / Non-starter | 1956—1976 | 3–3–1 1958 Tokyo SHO silver: 50 m small-bore rifle 3 positions and 300 m free rifle 3 positions; 1966 Bangkok SHO gold: 10 m air rifle, 50 m small-bore rifle 3 positions, and 50 m standard rifle 3 positions, bronze: 50 m small-bore rifle prone; 1970 Bangkok SHO silver: 50 m small-bore rifle 3 positions | |
| Wu Tsung-Yi | ARC | Olympics | 1996 | 0–1–1 1994 Hiroshima ARC bronze: individual; 1998 Bangkok ARC silver: team | |
| Wu Weipei | CRD | Olympics | 1988 | 2–1–0 1986 Seoul CRD gold: road time trial team; 1990 Beijing CRD gold: road time trial team, silver: 4000 m pursuit team | |
| Wu Wenkai | BDM | Olympics | 1992 | 1–0–0 1990 Beijing BDM gold: team | |
| Wu Xiaoxuan | SHO | Olympics | 1984 | 2–0–0 1982 New Delhi SHO gold: 10 m air rifle and 10 m air rifle team | |
| Wu Xing Yao | FEN | Olympics | 1992 | 0–0–1 1990 Beijing FEN bronze: foil team | |
| Wu Yanan | CSP | Olympics | 2012 | 1–0–0 2010 Guangzhou CSP gold: K4 500 m | |
| Wu Yanan | HBL | Olympics | 2004—2008 | 0–0–1 2002 Busan HBL bronze | |
| Wu Yanan | WSU | Non-Medal | 2008 | 2–0–0 2006 Doha WUS gold: Taijiquan & Taijijuan; 2010 Guangzhou WUS gold: Taijiquan & Taijijuan | |
| Wu Yanyan | SWM | Olympics | 1996 | 1–2–0 1998 Bangkok SWM gold: 200 m medley, silver: 400 m medley and 4×100 m medley relay | |
| Wu Yiwen | SWA | Olympics | 2012 | 3–0–0 2006 Doha SWA gold: team; 2010 Guangzhou SWA gold: team and combination | |
| Wu Yongmei | VVO | Olympics | 1996—2000 | 1–0–0 1998 Bangkok VVO gold | |
| Wu Zhiyu | WPO | Olympics | 2008 | 1–0–0 2006 Doha WPO gold | |
| Xia Fujie | SWM | Olympics | 1988 | 1–2–2 1986 Seoul SWM gold: 4×100 m freestyle relay, silver: 100 m freestyle and 4×100 m medley relay, bronze: 100 m breaststroke; 1990 Beijing SWM bronze: 200 m medley | |
| Xia Jiaping | TEN | Olympics | 1992—1996 | 3–0–1 1990 Beijing TEN gold: doubles and team; 1994 Hiroshima TEN gold: mixed doubles, bronze: doubles | |
| Xia Xuanze | BDM | Olympics | 2000 | 0–0–1 2002 Busan BDM bronze: team | |
| Xian Bangdi | CSP | Olympics | 1996 | 1–0–0 1994 Hiroshima CSP gold: K4 500 m | |
| Xian Dongmei | JUD | Olympics | 2004—2008 | 0–1–0 2002 Busan JUD silver: half-lightweight -52 kg | |
| Xiang Yanmei | WLF | Olympics | 2016 | 1–0–0 2014 Incheon WLF gold: light-heavyweight -69 kg | |
| Xiao Aihua | FEN | Olympics | 1988—2000 | 4–2–0 1990 Beijing FEN gold: foil team, silver: foil; 1994 Hiroshima FEN gold: foil and foil team; 1998 Bangkok FEN gold: foil, silver: foil team | |
| Xiao Di | WRE | Olympics | 2016 | 0–2–0 2014 Incheon WRE silver: Greco-Roman heavyweight -98 kg; 2018 Jakarta/Palembang WRE silver: Greco-Roman heavyweight -97 kg | |
| Xiao Hailiang | DIV | Olympics | 1996—2000 | 0–1–0 1994 Hiroshima DIV silver: platform | |
| Xiao Qin | GAR | Olympics | 2004—2008 | 1–0–0 2006 Doha GAR gold: team | |
| Xiao Zhen | FBL | Olympics | 2004 | 0–1–0 2002 Busan FBL silver | |
| Xie Huilin | FBL | Olympics | 1996—2000 | 1–0–0 1998 Bangkok FBL gold | |
| Xie Jun | SWM | Olympics | 1988—1992 | 4–3–1 1986 Seoul SWM gold: 400 m freestyle, silver: 4×200 m freestyle relay; 1990 Beijing SWM gold: 200 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 100 m freestyle and 4×200 m freestyle relay, bronze: 200 m medley | |
| Xie Junmin | WPO | Olympics | 2008 | 1–1–0 2006 Doha WPO gold; 2010 Guangzhou WPO silver | |
| Xie Limei | ATH | Olympics | 2008—2012 | 1–1–0 2006 Doha ATH gold: triple jump; 2010 Guangzhou silver: triple jump | |
| Xie Wenjun | ATH | Olympics | 2012—2020 | 2–0–0 2014 Incheon ATH gold: 110 m hurdles; 2018 Jakarta/Palembang ATH gold: 110 m hurdles | |
| Xie Xingfang | BDM | Olympics | 2008 | 1–0–1 2006 Doha BDM gold: team, bronze: singles | |
| Xie Xufeng | SWM | Olympics | 2000 | 0–1–1 1998 Bangkok SWM silver: 200 m butterfly, bronze: 200 m medley | |
| Xie Yongjun | FEN | Olympics | 2004 | 0–3–0 2002 Busan FEN silver: épée team; 2006 Doha FEN silver: épée and épée team | |
| Xie Yuxin | FBL | Olympics | 1988 | 0–1–0 1994 Hiroshima FBL silver | |
| Xie Zhenye | ATH | Olympics / YOG | 2010—2024 | 1–0–0 2014 Incheon ATH gold: 4×100 m relay | |
| Xie Zhongbo | BDM | Olympics | 2008 | 1–1–0 2006 Doha BDM gold: team, silver: mixed doubles | |
| Xin Minhong | SBL | Olympics | 2008 | 0–1–1 2002 Busan SOF silver; 2006 Doha SOF bronze | |
| Xing Aiying | BDM | Olympics | 2008 | 0–0–1 2006 Doha BDM bronze: team | |
| Xing Aowei | GAR | Olympics | 2000—2004 | 2–0–1 1998 Bangkok GAR gold: pommelled horse and team, bronze: horizontal bar | |
| Xing Huina | ATH | Olympics | 2004 | 0–0–1 2002 Busan ATH bronze: 10000 m | |
| Xing Yu | ARC | Olympics | 2012—2016 | 0–1–0 2010 Guangzhou ARC silver: team | |
| Xiong Dunhan | WPO | Olympics | 2016—2024 | 1–0–0 2018 Jakarta/Palembang WPO gold | |
| Xiong Ni | DIV | Olympics / Olympic Flagbearer | 1988—2008 | 1–1–0 1990 Beijing DIV gold: team, silver: platform | |
| Xiong Qiying | ATH | Olympics | 1988 | 1–0–0 1990 Beijing ATH gold: long jump | |
| Xiong Zi | VBV | Olympics | 2000 | 1–0–0 2002 Busan VVO gold | |
| Xiu Lijuan | BKB | Olympics | 1984 | 1–0–0 1982 New Delhi BKB gold | |
| Suhrob Xo'jayev | ATH | Olympics | 2012—2020 | 0–0–1 2018 Jakarta/Palembang ATH bronze: hammer throw | |
| Xu Anqi | FEN | Olympics | 2012—2020 | 1–1–1 2010 Guangzhou FEN silver: épée team, bronze: épée; 2014 Incheon FEN gold: épée team | |
| Xu Chao | CTR | Olympics | 2016—2020 | 1–1–0 2014 Incheon CRD silver: sprint team; 2018 Jakarta/Palembang CRD gold: sprint team | |
| Xu Chen | BDM | Olympics | 2012—2016 | 1–1–1 2010 Guangzhou BDM gold: team; 2014 Incheon BDM silver: team, bronze: mixed doubles | |
| Xu Dan | SHO | Olympics | 1996—2004 | 5–0–1 1994 Hiroshima SHO gold: 50 m free pistol team, bronze: 50 m free pistol; 1998 Bangkok SHO gold: 10 m air pistol and 10 m air pistol team; 2002 Busan SHO gold: 10 m air pistol team and 50 m free pistol team | |
| Xu Demei | ATH | Olympics | 1992 | 0–1–0 1990 Beijing ATH silver: javelin throw | |
| Xu Guoqing | JUD | Olympics | 1984—1988 | 0–1–0 1986 Seoul JUD silver: heavyweight +95 kg | |
| Xu Haifeng | SHO | Olympics / Torch Bearer | 1984—2008 | 9–0–0 1986 Seoul SHO gold: 10 m air pistol, 10 m air pistol team, 50 m free pistol, and 50 m free pistol team; 1990 Beijing SHO gold: 10 m air pistol team, 25 m centre fire pistol team, 50 m free pistol, and 50 m free pistol team; 1994 Hiroshima SHO gold: 50 m free pistol team | |
| Xu Haiyan | WRE | Olympics | 2008 | 1–0–1 2002 Busan WRE gold: freestyle middleweight -63 kg; 2006 Doha WRE bronze: freestyle middleweight -63 kg | |
| Xu Jian | SBL | Olympics | 1996—2000 | 1–0–0 1998 Bangkok SOF gold | |
| Xu Jiayu | SWM | Olympics | 2012—2024 | 6–2–1 2014 Incheon SWM gold: 4×100 m medley relay, silver: 100 m backstroke and 200 m backstroke, bronze: 50 m backstroke; 2018 Jakarta/Palembang SWM gold: 50 m backstroke, 100 m backstroke, 200 m backstroke, 4×100 m medley relay, and 4×100 m medley mixed relay | |
| Xu Jing | ARC | Olympics | 2012 | 0–1–1 2014 Incheon ARC silver: team, bronze: individual | |
| Xu Linbei | CSP | Olympics | 2004—2008 | 1–0–0 2002 Busan CSP gold: K2 500 m | |
| Xu Linyin | VBV | Olympics | 2008—2012 | 1–1–0 2006 Doha VBV silver; 2010 Guangzhou VBV gold | |
| Xu Tianlongzi | SWM | Olympics | 2008 | 0–1–1 2006 Doha SWM silver: 100 m backstroke; 2010 Guangzhou SWM bronze: 50 m backstroke | |
| Xu Wuling | ROW | Olympics | 1992 | 2–0–0 1990 Beijing ROW gold: coxless pairs; 1994 Hiroshima ROW gold: coxless pairs | |
| Xu Xiaoguang | SHO | Olympics | 1984—1988 | 3–5–1 1986 Seoul SHO gold: 10 m air rifle team and 50 m standard rifle 3 positions team, silver: 50 m small-bore rifle prone, 50 m small-bore rifle prone team, and 50 m small-bore rifle 3 positions team, bronze: 10 m air rifle; 1990 Beijing SHO gold: 50 m small-bore rifle prone team, silver: 50 m small-bore rifle prone and 50 m small-bore rifle 3 positions team | |
| Xu Xiaoliang | BKB | Olympics | 1988 | 1–0–0 1986 Seoul BKB gold | |
| Xu Xiaoxu | HOC | Olympics | 2012 | 1–1–0 2010 Guangzhou HOC gold; 2014 Incheon HOC silver | |
| Xu Yan | JUD | Olympics | 2008 | 1–0–0 2006 Doha JUD gold: lightweight -57 kg | |
| Xu Yang | ATH | Olympics | 1992 | 0–0–1 1994 Hiroshima ATH bronze: high jump | |
| Xu Yanhua | SHO | Olympics | 1992—1996 | 4–3–0 1990 Beijing SHO gold: 10 m air rifle, 10 m air rifle team, and 50 m small-bore rifle 3 positions team, silver: 50 m small-bore rifle 3 positions; 1994 Hiroshima SHO gold: 50 m small-bore rifle 3 positions team, silver: 10 m air rifle team and 50 m small-bore rifle 3 positions | |
| Xu Yanmei | DIV | Olympics | 1988 | 2–1–0 1986 Seoul DIV silver: platform; 1990 Beijing DIV gold: platform and team | |
| Xu Yanwei | SWM | Olympics | 2004—2008 | 8–3–0 2002 Busan SWM gold: 50 m freestyle, 100 m freestyle, 4×100 m freestyle relay, 4×200 m freestyle relay, and 4×100 m medley relay, silver: 200 m freestyle; 2006 Doha SWM gold: 50 m freestyle, 100 m freestyle, and 4×100 m freestyle relay, silver: 50 m butterfly and 100 m butterfly | |
| Xu Yuhua | JUD | Olympics | 2008 | 1–0–0 2006 Doha JUD gold: half-middleweight -63 kg | |
| Xu Yunli | VVO | Olympics | 2008—2016 | 2–0–0 2006 Doha VVO gold; 2010 Guangzhou VVO gold | |
| Xu Zangjun | SAL | Olympics | 2016—2024 | 0–1–0 2018 Jakarta/Palembang SAL silver: 470 | |
| Xu Zhiqiang | GAR | Olympics | 1984—1988 | 1–0–0 1986 Seoul GAR gold: team | |
| Xue Bing | CSP | Olympics | 1988 | 1–0–1 1990 Beijing CSP gold: K4 1000 m, bronze: K2 500 m | |
| Xue Changrui | ATH | Olympics | 2016 | 1–0–0 2014 Incheon ATH gold: pole vault | |
| Xue Chen | VBV | Olympics | 2008—2024 | 2–0–0 2006 Doha VBV gold; 2010 Guangzhou VBV gold | |
| Xue Cuilan | BKB | Olympics | 1988 | 1–1–0 1986 Seoul BKB gold; 1990 Beijing BKB silver | |
| Xue Fei | ATH | Olympics | 2008 | 1–0–0 2006 Doha ATH gold: 5000 m | |
| Xue Jinhua | HBL | Olympics | 1988 | 0–1–0 1990 Beijing HBL silver | |
| Xue Juan | ATH | Olympics | 2004 | 0–1–0 2010 Guangzhou ATH silver: javelin throw | |
| Xue Ming | VVO | Olympics | 2008 | 1–0–0 2010 Guangzhou VVO gold | |
| Xue Ruipeng | SWM | Olympics | 2008 | 0–1–0 2010 Guangzhou SWM silver: 200 m breaststroke | |
| Shizuo Yada | WRE | Olympics | 1972 | 0–1–0 1970 Bangkok WRE silver: freestyle heavyweight -100 kg | |
| Narsingh Yadav | WRE | Olympics / Non-starter | 2012—2016 | 0–0–1 2014 Incheon WRE bronze: freestyle middleweight -74 kg | |
| Vikas Krishan Yadav | BOX | Olympics / YOG | 2010—2020 | 1–0–2 2010 Guangzhou BOX gold: lightweight -60 kg; 2014 Incheon BOX bronze: middleweight -75 kg; 2018 Jakarta/Palembang BOX bronze: middleweight -75 kg | |
| Vikas Krishan Yadav | BOX | Olympics / YOG | 2010—2020 | 1–0–2 2010 Guangzhou BOX gold: lightweight -60 kg; 2014 Incheon BOX bronze: middleweight -75 kg; 2018 Jakarta/Palembang BOX bronze: middleweight -75 kg | |
| Shigeo Yaegashi | FBL | Olympics | 1956—1968 | 0–0–1 1966 Bangkok FBL bronze | |
| Ahmed Yaghoti | WPO | Olympics | 1976 | 1–0–0 1974 Tehran WPO gold | |
| Mieko Yagi | EDR | Olympics | 2008 | 2–0–0 1994 Hiroshima EJP gold: dressage individual and dressage team | |
| Mohammad Anas Yahiya | ATH | Olympics | 2016—2024 | 0–3–0 2018 Jakarta/Palembang ATH silver: 400 m, 4×400 m relay, and 4×400 m mixed relay | |
| Midori Yajima | SHO | Olympics | 2012 | 0–0–1 2014 Incheon SHO bronze: 50 m small-bore rifle 3 position team | |
| Nataliya Yakovleva | HBL | Olympics | 2008 | 0–1–0 2006 Doha HBL silver | |
| Sergey Yakshin | SHO | Olympics | 2000 | 2–1–1 1998 Bangkok SHO gold: skeet, bronze: skeet team; 2002 Busan SHO silver: skeet team; 2006 Doha SHO gold: skeet team | |
| Eri Yamada | SBL | Olympics | 2004—2020 | 4–0–0 2006 Doha SOF gold; 2010 Guangzhou SOF gold; 2014 Incheon SOF gold; 2018 Jakarta/Palembang SOF gold | |
| Hiroomi Yamada | ATH | Olympics | 1964—1968 | 1–1–1 1966 Bangkok ATH gold: long jump, bronze: decathlon; 1970 Bangkok ATH silver: long jump | |
| Kagari Yamada | BKB | Olympics | 1996 | 1–1–0 1994 Hiroshima BKB silver; 1998 Bangkok BKB gold | |
| Miyo Yamada | SBL | Olympics | 2000 | 0–1–0 1998 Bangkok SOF silver | |
| Sachiko Yamada | SWM | Olympics | 2000—2004 | 1–6–1 1998 Bangkok SWM silver: 400 m freestyle, 800 m freestyle, and 4×200 m freestyle relay, bronze: 200 m freestyle; 2002 Busan SWM gold: 400 m freestyle, silver: 800 m freestyle, 4×100 m freestyle relay, and 4×200 m freestyle relay | |
| Shuji Yamada | VVO | Olympics | 1984 | 1–0–0 1982 New Delhi VVO gold | |
| Ryota Yamagata | ATH | Olympics / Athlete Oath Taker | 2012—2020 | 1–1–1 2014 Incheon ATH silver: 4×100 m relay; 2018 Jakarta/Palembang ATH gold: 4×100 m relay, bronze: 100 m | |
| Yasuyo Yamagishi | FBL | Olympics | 2004 | 0–0–2 1998 Bangkok FBL bronze; 2002 Busan FBL bronze | |
| Nozomi Yamago | FBL | Olympics | 2004 | 1–1–2 1998 Bangkok FBL bronze; 2002 Busan FBL bronze; 2006 Doha FBL silver; 2010 Guangzhou FBL gold | |
| Akane Yamaguchi | BDM | Olympics / YOG / Opening Flagbearer | 2014—2024 | 1–0–2 2014 Incheon BDM bronze: team; 2018 Jakarta/Palembang BDM gold: team, bronze: singles | |
| Hotaru Yamaguchi | FBL | Olympics | 2012 | 1–0–0 2010 Guangzhou FBL gold | |
| Misaki Yamaguchi | SWM | Olympics | 2008—2016 | 0–1–0 2014 Incheon SWM silver: 4×100 m freestyle relay | |
| Yoshitada Yamaguchi | FBL | Olympics | 1964—1968 | 0–0–1 1966 Bangkok FBL bronze | |
| Noriko Yamaji | SBL | Olympics | 1996—2004 | 1–2–0 1994 Hiroshima SOF silver; 1998 Bangkok SOF silver; 2002 Busan SOF gold | |
| Rie Yamaki | FBL | Olympics | 1996 | 0–0–1 1998 Bangkok FBL bronze | |
| Hiroshi Yamamoto | ARC | Olympics | 1984—2004 | 2–3–1 1982 New Delhi ARC gold: individual; 1986 Seoul ARC silver: team, bronze: 50 m double; 1990 Beijing ARC silver: team; 1994 Hiroshima ARC silver: team; 2002 Busan ARC gold: individual | |
| Kohei Yamamoto | MTB | Olympics | 2008—2020 | 0–1–1 2010 Guangzhou CRD silver: mountainbike cross-country; 2014 Incheon CRD bronze: mountainbike cross-country | |
| Mayuka Yamamoto | SWM | YOG | 2018 | 1–1–0 2018 Jakarta/Palembang SWM gold: 4×100 m freestyle relay (swam in heats only) and 4×100 m medley mixed relay (swam in heats only) | |
| Noriko Yamamoto | SWM | Olympics | 1964 | 3–0–0 1962 Jakarta SWM gold: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay | |
| Ryosuke Yamamoto | TRI | Olympics | 2008 | 0–1–0 2010 Guangzhou TRI silver: individual | |
| Sachiyo Yamamoto | BKB | Olympics | 1976 | 1–0–0 1974 Tehran BKB gold | |
| Seito Yamamoto | ATH | Olympics | 2012—2020 | 1–0–0 2018 Jakarta/Palembang ATH gold: pole vault | |
| Shinji Yamamoto | HBL | Olympics | 1984 | 0–1–0 1982 New Delhi HBL silver | |
| Takashi Yamamoto | SWM | Olympics | 1996—2004 | 7–1–0 1998 Bangkok SWM gold: 100 m butterfly, 200 m butterfly, and 4×100 m medley relay; 2002 Busan SWM gold: 100 m butterfly and 4×100 m medley relay, silver: 200 m butterfly; 2006 Doha SWM gold: 100 m butterfly and 4×100 m medley relay | |
| Yoko Yamamoto | SWM | Olympics | 1972 | 0–2–0 1974 Tehran SWM silver: 100 m breaststroke and 200 m breaststroke | |
| Yosuke Yamamoto | JUD | Olympics | 1988 | 0–1–0 1986 Seoul JUD silver: half-lightweight -65 kg | |
| Yukari Yamamoto | HOC | Olympics | 2004—2012 | 0–1–2 2002 Busan HOC bronze; 2006 Doha HOC silver; 2010 Guangzhou HOC bronze | |
| Kazuya Yamamura | FBL | Olympics | 2012 | 1–0–0 2010 Guangzhou FBL gold | |
| Kota Yamamura | VVO | Olympics | 2008 | 1–0–1 2002 Busan VVO bronze; 2010 Guangzhou VVO gold | |
| Toshiyuki Yamamura | HBL | Olympics | 1988 | 0–1–0 1990 Beijing HBL silver | |
| Rikiko Yamanaka | DIV | Olympics | 1976 | 0–0–2 1978 Bangkok DIV bronze: 3 m springboard and platform | |
| Shino Yamanaka | MPN | Olympics | 2012 | 0–1–0 2014 Incheon MPN silver: team | |
| Tsuyoshi Yamanaka | SWM | Olympics | 1956—1964 | 3–0–0 1958 Tokyo SWM gold: 400 m freestyle, 1500 m freestyle, and 4×200 m freestyle relay | |
| Erina Yamane | FBL | Non-starter | 2012 | 0–1–0 2014 Incheon FBL silver | |
| Toshio Yamano | DIV | Olympics | 1960—1964 | 0–1–0 1958 Tokyo DIV silver: platform | |
| Eri Yamanoi | SWM | Olympics | 1996 | 1–2–1 1994 Hiroshima SWM gold: 4×100 m freestyle relay, silver: 200 m freestyle; 1998 Bangkok SWM silver: 4×200 m freestyle relay, bronze: 800 m freestyle | |
| Hiroko Yamashita | ATH | Olympics | 1972 | 1–0–1 1970 Bangkok ATH gold: long jump; 1974 Tehran ATH bronze: long jump | |
| Miyuki Yamashita | ROW | Olympics | 1992 | 0–2–0 1990 Beijing ROW silver: coxless fours; 1994 Hiroshima ROW silver: lightweight coxless fours | |
| Norifumi Yamashita | ATH | Olympics | 1988—1992 | 1–0–0 1986 Seoul ATH gold: triple jump | |
| Sadako Yamashita | SWM | Olympics | 1952 | 1–0–0 1954 Manila SWM gold: 4×100 m freestyle relay | |
| Tomoya Yamashita | SHO | Olympics | 1988 | 0–0–1 1982 New Delhi SHO bronze: skeet team | |
| Toshikazu Yamashita | SHO | Olympics | 2008—2016 | 0–0–1 2014 Incheon SHO bronze: 50 m small-bore rifle 3 position team | |
| Kenji Yamauchi | ATH | Olympics | 1988 | 1–0–0 1986 Seoul ATH gold: 4×400 m relay | |
| Mika Yamauchi | VVO | Olympics | 1992—1996 | 0–0–1 1994 Hiroshima VVO bronze | |
| Kyoji Yamawaki | GAR | Olympics | 1984 | 0–1–1 1986 Seoul GAR silver: horse vault, bronze: team | |
| Ryohei Yamazaki | FBL | Non-starter | 2012 | 1–0–0 2010 Guangzhou FBL gold | |
| Sachiko Yamazaki | SWM | Olympics | 1976 | 3–0–1 1978 Bangkok SWM gold: 100 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay, bronze: 200 m freestyle | |
| Rampai Yamfang-Sriyai | SHO | Olympics | 1988—1992 | 0–1–1 1986 Seoul SHO silver: 10 m air pistol, bronze: 25 m sporting pistol team (competed as Rampai Yamfang) | |
| Yan Fang | SBL | Olympics | 1996—2000 | 3–0–0 1990 Beijing SOF gold; 1994 Hiroshima SOF gold; 1998 Bangkok SOF gold | |
| Yan Jiankui | ATH | Olympics | 1996 | 2–0–1 1998 Bangkok ATH gold: 4×100 m relay, bronze: 200 m; 2002 Busan ATH gold: 4×100 m relay | |
| Yan Jing | FEN | Olympics | 1996 | 1–0–0 1990 Beijing FEN gold: épée team | |
| Yan Meizhu | HBL | Olympics | 2008 | 1–0–0 2010 Guangzhou HBL gold | |
| Yan Ming | SWM | Olympics | 1988—1992 | 5–1–0 1986 Seoul SWM gold: 400 m freestyle, 800 m freestyle, and 400 m medley; 1990 Beijing SWM gold: 400 m freestyle and 800 m freestyle, silver: 400 m medley | |
| Yan Ni | VVO | Olympics | 2016—2020 | 1–1–0 2014 Incheon VVO silver; 2018 Jakarta/Palembang VVO gold | |
| Yan Shixin | FBL | Olympics | 1948 | 1–0–0 1954 Manila FBL gold | |
| Yan Zi | TEN | Olympics | 2004—2008 | 2–0–1 2006 Doha TEN gold: doubles; 2010 Guangzhou TEN gold: team, bronze: doubles | |
| Yan Zibei | SWM | Olympics | 2016—2020 | 2–2–0 2018 Jakarta/Palembang SWM gold: 4×100 m medley relay and 4×100 m medley mixed relay, silver: 50 m breaststroke and 100 m breaststroke | |
| Hideaki Yanagida | WRE | Olympics | 1972 | 1–0–0 1970 Bangkok WRE gold: freestyle bantamweight -57 kg |