Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| William Wilson | PHI |
SWM | Olympics | 1984 | 1–1–1 1982 New Delhi SWM gold: 200 m freestyle, silver: 400 m freestyle, bronze: 1500 m freestyle |
| Wickramesinghe Wimaladasa | SRI |
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 | SRI |
ATH | Olympics | 2000 | 0–0–1 2002 Busan ATH bronze: 4×400 m relay |
| Win Kay Thi | MYA |
WLF | Olympics | 2000 | 0–2–0 1998 Bangkok WLF silver: flyweight -48 kg; 2002 Busan WLF silver: flyweight -48 kg |
| Win Maung | MYA |
BOX | Olympics | 1972 | 0–1–1 1966 Bangkok BOX bronze: bantamweight -54 kg; 1970 Bangkok BOX silver: bantamweight -54 kg |
| Win Maung | MYA |
FBL | Olympics / Opening Flagbearer | 1972 | 1–0–0 1970 Bangkok FBL gold |
| Win Maung | MYA |
BOX | Olympics | 1972 | 0–1–1 1966 Bangkok BOX bronze: bantamweight -54 kg; 1970 Bangkok BOX silver: bantamweight -54 kg |
| Win Swe Swe | MYA |
WLF | Olympics | 2000 | 0–0–1 1998 Bangkok WLF bronze: featherweight -53 kg |
| Ardy Wiranata | INA |
BDM | Olympics | 1992 | 1–0–1 1990 Beijing BDM bronze: team; 1994 Hiroshima BDM gold: team |
| Bonit Wiryawan | INA |
TEN | Olympics | 1992 | 0–1–3 1990 Beijing TEN bronze: doubles, team, and mixed doubles; 1994 Hiroshima TEN silver: team |
| Wiebe Wolters | SGP |
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 | KOR |
CTR | Olympics | 1992 | 0–0–1 1994 Hiroshima CRD bronze: 1000 m track time trial |
| Won Ok-Im | PRK |
JUD | Olympics | 2008 | 0–0–1 2006 Doha JUD bronze: half-middleweight -63 kg |
| Won Sin-Hui | KOR |
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 | KOR |
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 | TPE |
FBL | Olympics | 1960 | 1–0–0 1958 Tokyo FBL gold |
| Wong Choon Hin | MAS |
HOC | Olympics | 1972—1976 | 0–0–1 1974 Tehran HOC bronze |
| Wong Choong Hann | MAS |
BDM | Olympics | 2000—2008 | 0–0–3 1998 Bangkok BDM bronze: team; 2002 Busan BDM bronze: team; 2006 Doha BDM bronze: team |
| Jamie Wong | HKG |
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 | MAS |
FBL | Olympics | 1972 | 0–0–1 1974 Tehran FBL bronze |
| Wong Kam Po | HKG |
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 | MAS |
BDM | Olympics | 2004—2008 | 0–0–1 2006 Doha BDM bronze: mixed doubles |
| Woon Khe Wei | MAS |
BDM | Olympics | 2016 | 0–0–1 2014 Incheon BDM bronze: doubles |
| Kriengsak Worawut | THA |
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 | TPE |
ATH | Olympics | 1964—1968 | 1–0–0 1966 Bangkok ATH gold: decathlon |
| Wu Chia-Yen | TPE |
SBL | Olympics | 2004—2008 | 0–2–0 2002 Busan SOF silver; 2006 Doha SOF silver |
| Wu Chia-Ying | TPE |
SHO | Olympics | 2016—2024 | 0–1–0 2014 Incheon SHO silver: 10 m air pistol team |
| Wu Ching Hui | HKG |
JUD | Olympics | 1996 | 0–0–1 1994 Hiroshima JUD bronze: half-middleweight -61 kg |
| Wu Chunlan | CHN |
SWA | Olympics | 1996 | 0–1–0 1994 Hiroshima SWA silver: solo |
| Wu Dan | CHN |
VVO | Olympics | 1988—2000 | 2–0–0 1986 Seoul VVO gold; 1990 Beijing VVO gold |
| Wu Di | CHN |
SBL | Olympics | 2004—2008 | 0–0–1 2006 Doha SOF bronze |
| Wu Haiyan | CHN |
FBL | Olympics / Non-starter | 2016—2020 | 0–1–0 2018 Jakarta/Palembang FBL silver |
| Wu Hanxiong | CHN |
FEN | Olympics | 2004 | 2–0–1 2002 Busan FEN gold: foil team, bronze: foil; 2006 Doha FEN gold: foil team |
| Wu Hui-Ju | TPE |
ARC | Olympics | 2004—2008 | 0–0–1 2006 Doha ARC bronze: team |
| Wu Jiani | CHN |
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 | TPE |
ATH | Olympics | 1960 | 0–0–2 1958 Tokyo ATH bronze: shot put; 1966 Bangkok ATH bronze: shot put |
| Wu Jingbiao | CHN |
WLF | Olympics | 2012 | 1–0–1 2010 Guangzhou WLF gold: bantamweight -56 kg; 2014 Incheon WLF bronze: bantamweight -56 kg |
| Wu Lanying | CHN |
SHO | Olympics | 1984—1988 | 1–0–1 1978 Bangkok SHO bronze: skeet team; 1990 Beijing SHO gold: skeet team |
| Wu Liuxi | CHN |
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 | TPE |
JUD | Olympics | 1992—1996 | 0–0–2 1994 Hiroshima JUD bronze: middleweight -66 kg; 1998 Bangkok JUD bronze: half-middleweight -63 kg |
| Wu Meijin | CHN |
WLF | Olympics | 2004 | 1–0–0 2002 Busan WLF gold: bantamweight -56 kg |
| Wu Minxia | CHN |
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 | CHN |
BKB | Olympics | 1996 | 1–0–0 1994 Hiroshima BKB gold |
| Wu Peng | CHN |
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 | CHN |
VBV | Olympics | 2008—2012 | 1–1–0 2006 Doha VBV silver; 2010 Guangzhou VBV gold |
| Wu Qinglong | CHN |
BKB | Olympics | 1992—1996 | 1–0–0 1994 Hiroshima BKB gold |
| Wu Shude | CHN |
WLF | Olympics | 1984 | 1–0–0 1982 New Delhi WLF gold: bantamweight -56 kg |
| Wu Shugen | CHN |
JUD | Olympics | 2008—2012 | 1–0–1 2010 Guangzhou JUD gold: extra-lightweight -48 kg; 2014 Incheon JUD bronze: team |
| Wu Shuijiao | CHN |
ATH | Olympics | 2016 | 1–0–0 2014 Incheon ATH gold: 100 m hurdles |
| Wu Tao | CHN |
ATH | Olympics | 2004 | 1–0–0 2002 Busan ATH gold: discus throw |
| Wu Tao-Yan | TPE |
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 | TPE |
ARC | Olympics | 1996 | 0–1–1 1994 Hiroshima ARC bronze: individual; 1998 Bangkok ARC silver: team |
| Wu Weipei | CHN |
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 | CHN |
BDM | Olympics | 1992 | 1–0–0 1990 Beijing BDM gold: team |
| Wu Xiaoxuan | CHN |
SHO | Olympics | 1984 | 2–0–0 1982 New Delhi SHO gold: 10 m air rifle and 10 m air rifle team |
| Wu Xing Yao | HKG |
FEN | Olympics | 1992 | 0–0–1 1990 Beijing FEN bronze: foil team |
| Wu Yanan | CHN |
CSP | Olympics | 2012 | 1–0–0 2010 Guangzhou CSP gold: K4 500 m |
| Wu Yanan | CHN |
HBL | Olympics | 2004—2008 | 0–0–1 2002 Busan HBL bronze |
| Wu Yanan | CHN |
WSU | Non-Medal | 2008 | 2–0–0 2006 Doha WUS gold: Taijiquan & Taijijuan; 2010 Guangzhou WUS gold: Taijiquan & Taijijuan |
| Wu Yanyan | CHN |
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 | CHN |
SWA | Olympics | 2012 | 3–0–0 2006 Doha SWA gold: team; 2010 Guangzhou SWA gold: team and combination |
| Wu Yongmei | CHN |
VVO | Olympics | 1996—2000 | 1–0–0 1998 Bangkok VVO gold |
| Wu Zhiyu | CHN |
WPO | Olympics | 2008 | 1–0–0 2006 Doha WPO gold |
| Xia Fujie | CHN |
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 | CHN |
TEN | Olympics | 1992—1996 | 3–0–1 1990 Beijing TEN gold: doubles and team; 1994 Hiroshima TEN gold: mixed doubles, bronze: doubles |
| Xia Xuanze | CHN |
BDM | Olympics | 2000 | 0–0–1 2002 Busan BDM bronze: team |
| Xian Bangdi | CHN |
CSP | Olympics | 1996 | 1–0–0 1994 Hiroshima CSP gold: K4 500 m |
| Xian Dongmei | CHN |
JUD | Olympics | 2004—2008 | 0–1–0 2002 Busan JUD silver: half-lightweight -52 kg |
| Xiang Yanmei | CHN |
WLF | Olympics | 2016 | 1–0–0 2014 Incheon WLF gold: light-heavyweight -69 kg |
| Xiao Aihua | CHN |
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 | CHN |
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 | CHN |
DIV | Olympics | 1996—2000 | 0–1–0 1994 Hiroshima DIV silver: platform |
| Xiao Qin | CHN |
GAR | Olympics | 2004—2008 | 1–0–0 2006 Doha GAR gold: team |
| Xiao Zhen | CHN |
FBL | Olympics | 2004 | 0–1–0 2002 Busan FBL silver |
| Xie Huilin | CHN |
FBL | Olympics | 1996—2000 | 1–0–0 1998 Bangkok FBL gold |
| Xie Jun | CHN |
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 | CHN |
WPO | Olympics | 2008 | 1–1–0 2006 Doha WPO gold; 2010 Guangzhou WPO silver |
| Xie Limei | CHN |
ATH | Olympics | 2008—2012 | 1–1–0 2006 Doha ATH gold: triple jump; 2010 Guangzhou silver: triple jump |
| Xie Wenjun | CHN |
ATH | Olympics | 2012—2020 | 2–0–0 2014 Incheon ATH gold: 110 m hurdles; 2018 Jakarta/Palembang ATH gold: 110 m hurdles |
| Xie Xingfang | CHN |
BDM | Olympics | 2008 | 1–0–1 2006 Doha BDM gold: team, bronze: singles |
| Xie Xufeng | CHN |
SWM | Olympics | 2000 | 0–1–1 1998 Bangkok SWM silver: 200 m butterfly, bronze: 200 m medley |
| Xie Yongjun | CHN |
FEN | Olympics | 2004 | 0–3–0 2002 Busan FEN silver: épée team; 2006 Doha FEN silver: épée and épée team |
| Xie Yuxin | CHN |
FBL | Olympics | 1988 | 0–1–0 1994 Hiroshima FBL silver |
| Xie Zhenye | CHN |
ATH | Olympics / YOG | 2010—2024 | 1–0–0 2014 Incheon ATH gold: 4×100 m relay |
| Xie Zhongbo | CHN |
BDM | Olympics | 2008 | 1–1–0 2006 Doha BDM gold: team, silver: mixed doubles |
| Xin Minhong | CHN |
SBL | Olympics | 2008 | 0–1–1 2002 Busan SOF silver; 2006 Doha SOF bronze |
| Xing Aiying | SGP |
BDM | Olympics | 2008 | 0–0–1 2006 Doha BDM bronze: team |
| Xing Aowei | CHN |
GAR | Olympics | 2000—2004 | 2–0–1 1998 Bangkok GAR gold: pommelled horse and team, bronze: horizontal bar |
| Xing Huina | CHN |
ATH | Olympics | 2004 | 0–0–1 2002 Busan ATH bronze: 10000 m |
| Xing Yu | CHN |
ARC | Olympics | 2012—2016 | 0–1–0 2010 Guangzhou ARC silver: team |
| Xiong Dunhan | CHN |
WPO | Olympics | 2016—2024 | 1–0–0 2018 Jakarta/Palembang WPO gold |
| Xiong Ni | CHN |
DIV | Olympics / Olympic Flagbearer | 1988—2008 | 1–1–0 1990 Beijing DIV gold: team, silver: platform |
| Xiong Qiying | CHN |
ATH | Olympics | 1988 | 1–0–0 1990 Beijing ATH gold: long jump |
| Xiong Zi | CHN |
VBV | Olympics | 2000 | 1–0–0 2002 Busan VVO gold |
| Xiu Lijuan | CHN |
BKB | Olympics | 1984 | 1–0–0 1982 New Delhi BKB gold |
| Xu Anqi | CHN |
FEN | Olympics | 2012—2020 | 1–1–1 2010 Guangzhou FEN silver: épée team, bronze: épée; 2014 Incheon FEN gold: épée team |
| Xu Chao | CHN |
CTR | Olympics | 2016—2020 | 1–1–0 2014 Incheon CRD silver: sprint team; 2018 Jakarta/Palembang CRD gold: sprint team |
| Xu Chen | CHN |
BDM | Olympics | 2012—2016 | 1–1–1 2010 Guangzhou BDM gold: team; 2014 Incheon BDM silver: team, bronze: mixed doubles |
| Xu Dan | CHN |
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 | CHN |
ATH | Olympics | 1992 | 0–1–0 1990 Beijing ATH silver: javelin throw |
| Xu Guoqing | CHN |
JUD | Olympics | 1984—1988 | 0–1–0 1986 Seoul JUD silver: heavyweight +95 kg |
| Xu Haifeng | CHN |
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 | CHN |
WRE | Olympics | 2008 | 1–0–1 2002 Busan WRE gold: freestyle middleweight -63 kg; 2006 Doha WRE bronze: freestyle middleweight -63 kg |
| Xu Jian | CHN |
SBL | Olympics | 1996—2000 | 1–0–0 1998 Bangkok SOF gold |
| Xu Jiayu | CHN |
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 | CHN |
ARC | Olympics | 2012 | 0–1–1 2014 Incheon ARC silver: team, bronze: individual |
| Xu Linbei | CHN |
CSP | Olympics | 2004—2008 | 1–0–0 2002 Busan CSP gold: K2 500 m |
| Xu Linyin | CHN |
VBV | Olympics | 2008—2012 | 1–1–0 2006 Doha VBV silver; 2010 Guangzhou VBV gold |
| Xu Tianlongzi | CHN |
SWM | Olympics | 2008 | 0–1–1 2006 Doha SWM silver: 100 m backstroke; 2010 Guangzhou SWM bronze: 50 m backstroke |
| Xu Wuling | CHN |
ROW | Olympics | 1992 | 2–0–0 1990 Beijing ROW gold: coxless pairs; 1994 Hiroshima ROW gold: coxless pairs |
| Xu Xiaoguang | CHN |
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 | CHN |
BKB | Olympics | 1988 | 1–0–0 1986 Seoul BKB gold |
| Xu Xiaoxu | CHN |
HOC | Olympics | 2012 | 1–1–0 2010 Guangzhou HOC gold; 2014 Incheon HOC silver |
| Xu Yan | CHN |
JUD | Olympics | 2008 | 1–0–0 2006 Doha JUD gold: lightweight -57 kg |
| Xu Yang | CHN |
ATH | Olympics | 1992 | 0–0–1 1994 Hiroshima ATH bronze: high jump |
| Xu Yanhua | CHN |
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 | CHN |
DIV | Olympics | 1988 | 2–1–0 1986 Seoul DIV silver: platform; 1990 Beijing DIV gold: platform and team |
| Xu Yanwei | CHN |
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 | CHN |
JUD | Olympics | 2008 | 1–0–0 2006 Doha JUD gold: half-middleweight -63 kg |
| Xu Yunli | CHN |
VVO | Olympics | 2008—2016 | 2–0–0 2006 Doha VVO gold; 2010 Guangzhou VVO gold |
| Xu Zangjun | CHN |
SAL | Olympics | 2016—2024 | 0–1–0 2018 Jakarta/Palembang SAL silver: 470 |
| Xu Zhiqiang | CHN |
GAR | Olympics | 1984—1988 | 1–0–0 1986 Seoul GAR gold: team |
| Xue Bing | CHN |
CSP | Olympics | 1988 | 1–0–1 1990 Beijing CSP gold: K4 1000 m, bronze: K2 500 m |
| Xue Changrui | CHN |
ATH | Olympics | 2016 | 1–0–0 2014 Incheon ATH gold: pole vault |
| Xue Chen | CHN |
VBV | Olympics | 2008—2024 | 2–0–0 2006 Doha VBV gold; 2010 Guangzhou VBV gold |
| Xue Cuilan | CHN |
BKB | Olympics | 1988 | 1–1–0 1986 Seoul BKB gold; 1990 Beijing BKB silver |
| Xue Fei | CHN |
ATH | Olympics | 2008 | 1–0–0 2006 Doha ATH gold: 5000 m |
| Xue Jinhua | CHN |
HBL | Olympics | 1988 | 0–1–0 1990 Beijing HBL silver |
| Xue Juan | CHN |
ATH | Olympics | 2004 | 0–1–0 2010 Guangzhou ATH silver: javelin throw |
| Xue Ming | CHN |
VVO | Olympics | 2008 | 1–0–0 2010 Guangzhou VVO gold |
| Xue Ruipeng | CHN |
SWM | Olympics | 2008 | 0–1–0 2010 Guangzhou SWM silver: 200 m breaststroke |
| Shizuo Yada | JPN |
WRE | Olympics | 1972 | 0–1–0 1970 Bangkok WRE silver: freestyle heavyweight -100 kg |
| Narsingh Yadav | IND |
WRE | Olympics / Non-starter | 2012—2016 | 0–0–1 2014 Incheon WRE bronze: freestyle middleweight -74 kg |
| Vikas Krishan Yadav | IND |
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 | IND |
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 | JPN |
FBL | Olympics | 1956—1968 | 0–0–1 1966 Bangkok FBL bronze |
| Ahmed Yaghoti | IRI |
WPO | Olympics | 1976 | 1–0–0 1974 Tehran WPO gold |
| Mieko Yagi | JPN |
EDR | Olympics | 2008 | 2–0–0 1994 Hiroshima EJP gold: dressage individual and dressage team |
| Mohammad Anas Yahiya | IND |
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 | JPN |
SHO | Olympics | 2012 | 0–0–1 2014 Incheon SHO bronze: 50 m small-bore rifle 3 position team |
| Nataliya Yakovleva | KAZ |
HBL | Olympics | 2008 | 0–1–0 2006 Doha HBL silver |
| Sergey Yakshin | KAZ |
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 | JPN |
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 | JPN |
ATH | Olympics | 1964—1968 | 1–1–1 1966 Bangkok ATH gold: long jump, bronze: decathlon; 1970 Bangkok ATH silver: long jump |
| Kagari Yamada | JPN |
BKB | Olympics | 1996 | 1–1–0 1994 Hiroshima BKB silver; 1998 Bangkok BKB gold |
| Miyo Yamada | JPN |
SBL | Olympics | 2000 | 0–1–0 1998 Bangkok SOF silver |
| Sachiko Yamada | JPN |
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 | JPN |
VVO | Olympics | 1984 | 1–0–0 1982 New Delhi VVO gold |
| Ryota Yamagata | JPN |
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 | JPN |
FBL | Olympics | 2004 | 0–0–2 1998 Bangkok FBL bronze; 2002 Busan FBL bronze |
| Nozomi Yamago | JPN |
FBL | Olympics | 2004 | 1–1–2 1998 Bangkok FBL bronze; 2002 Busan FBL bronze; 2006 Doha FBL silver; 2010 Guangzhou FBL gold |
| Akane Yamaguchi | JPN |
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 | JPN |
FBL | Olympics | 2012 | 1–0–0 2010 Guangzhou FBL gold |
| Misaki Yamaguchi | JPN |
SWM | Olympics | 2008—2016 | 0–1–0 2014 Incheon SWM silver: 4×100 m freestyle relay |
| Yoshitada Yamaguchi | JPN |
FBL | Olympics | 1964—1968 | 0–0–1 1966 Bangkok FBL bronze |
| Noriko Yamaji | JPN |
SBL | Olympics | 1996—2004 | 1–2–0 1994 Hiroshima SOF silver; 1998 Bangkok SOF silver; 2002 Busan SOF gold |
| Rie Yamaki | JPN |
FBL | Olympics | 1996 | 0–0–1 1998 Bangkok FBL bronze |
| Hiroshi Yamamoto | JPN |
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 | JPN |
MTB | Olympics | 2008—2020 | 0–1–1 2010 Guangzhou CRD silver: mountainbike cross-country; 2014 Incheon CRD bronze: mountainbike cross-country |
| Mayuka Yamamoto | JPN |
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 | JPN |
SWM | Olympics | 1964 | 3–0–0 1962 Jakarta SWM gold: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay |
| Ryosuke Yamamoto | JPN |
TRI | Olympics | 2008 | 0–1–0 2010 Guangzhou TRI silver: individual |
| Sachiyo Yamamoto | JPN |
BKB | Olympics | 1976 | 1–0–0 1974 Tehran BKB gold |
| Seito Yamamoto | JPN |
ATH | Olympics | 2012—2020 | 1–0–0 2018 Jakarta/Palembang ATH gold: pole vault |
| Shinji Yamamoto | JPN |
HBL | Olympics | 1984 | 0–1–0 1982 New Delhi HBL silver |
| Takashi Yamamoto | JPN |
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 | JPN |
SWM | Olympics | 1972 | 0–2–0 1974 Tehran SWM silver: 100 m breaststroke and 200 m breaststroke |
| Yosuke Yamamoto | JPN |
JUD | Olympics | 1988 | 0–1–0 1986 Seoul JUD silver: half-lightweight -65 kg |
| Yukari Yamamoto | JPN |
HOC | Olympics | 2004—2012 | 0–1–2 2002 Busan HOC bronze; 2006 Doha HOC silver; 2010 Guangzhou HOC bronze |
| Kazuya Yamamura | JPN |
FBL | Olympics | 2012 | 1–0–0 2010 Guangzhou FBL gold |
| Kota Yamamura | JPN |
VVO | Olympics | 2008 | 1–0–1 2002 Busan VVO bronze; 2010 Guangzhou VVO gold |
| Toshiyuki Yamamura | JPN |
HBL | Olympics | 1988 | 0–1–0 1990 Beijing HBL silver |
| Rikiko Yamanaka | JPN |
DIV | Olympics | 1976 | 0–0–2 1978 Bangkok DIV bronze: 3 m springboard and platform |
| Shino Yamanaka | JPN |
MPN | Olympics | 2012 | 0–1–0 2014 Incheon MPN silver: team |
| Tsuyoshi Yamanaka | JPN |
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 | JPN |
FBL | Non-starter | 2012 | 0–1–0 2014 Incheon FBL silver |
| Toshio Yamano | JPN |
DIV | Olympics | 1960—1964 | 0–1–0 1958 Tokyo DIV silver: platform |
| Eri Yamanoi | JPN |
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 | JPN |
ATH | Olympics | 1972 | 1–0–1 1970 Bangkok ATH gold: long jump; 1974 Tehran ATH bronze: long jump |
| Miyuki Yamashita | JPN |
ROW | Olympics | 1992 | 0–2–0 1990 Beijing ROW silver: coxless fours; 1994 Hiroshima ROW silver: lightweight coxless fours |
| Norifumi Yamashita | JPN |
ATH | Olympics | 1988—1992 | 1–0–0 1986 Seoul ATH gold: triple jump |
| Sadako Yamashita | JPN |
SWM | Olympics | 1952 | 1–0–0 1954 Manila SWM gold: 4×100 m freestyle relay |
| Tomoya Yamashita | JPN |
SHO | Olympics | 1988 | 0–0–1 1982 New Delhi SHO bronze: skeet team |
| Toshikazu Yamashita | JPN |
SHO | Olympics | 2008—2016 | 0–0–1 2014 Incheon SHO bronze: 50 m small-bore rifle 3 position team |
| Kenji Yamauchi | JPN |
ATH | Olympics | 1988 | 1–0–0 1986 Seoul ATH gold: 4×400 m relay |
| Mika Yamauchi | JPN |
VVO | Olympics | 1992—1996 | 0–0–1 1994 Hiroshima VVO bronze |
| Kyoji Yamawaki | JPN |
GAR | Olympics | 1984 | 0–1–1 1986 Seoul GAR silver: horse vault, bronze: team |
| Ryohei Yamazaki | JPN |
FBL | Non-starter | 2012 | 1–0–0 2010 Guangzhou FBL gold |
| Sachiko Yamazaki | JPN |
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 | THA |
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 | CHN |
SBL | Olympics | 1996—2000 | 3–0–0 1990 Beijing SOF gold; 1994 Hiroshima SOF gold; 1998 Bangkok SOF gold |
| Yan Jiankui | CHN |
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 | CHN |
FEN | Olympics | 1996 | 1–0–0 1990 Beijing FEN gold: épée team |
| Yan Meizhu | CHN |
HBL | Olympics | 2008 | 1–0–0 2010 Guangzhou HBL gold |
| Yan Ming | CHN |
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 | CHN |
VVO | Olympics | 2016—2020 | 1–1–0 2014 Incheon VVO silver; 2018 Jakarta/Palembang VVO gold |
| Yan Shixin | CHN |
FBL | Olympics | 1948 | 1–0–0 1954 Manila FBL gold |
| Yan Zi | CHN |
TEN | Olympics | 2004—2008 | 2–0–1 2006 Doha TEN gold: doubles; 2010 Guangzhou TEN gold: team, bronze: doubles |
| Yan Zibei | CHN |
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 | JPN |
WRE | Olympics | 1972 | 1–0–0 1970 Bangkok WRE gold: freestyle bantamweight -57 kg |