Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Masaru Yanagida | SHO | Olympics | 1992—2004 | 1–4–3 1990 Beijing SHO gold: 10 m air rifle team, silver: 10 m air rifle, bronze: 50 m small-bore rifle 3 positions team; 1994 Hiroshima SHO silver: 10 m air rifle team, bronze: 10 m air rifle; 1998 Bangkok SHO silver: 10 m air rifle, bronze: 10 m air rifle team; 2002 Busan SHO silver: 10 m air rifle team | |
| Tsuyoshi Yanagidate | SWM | Olympics | 1976 | 5–2–0 1974 Tehran SWM gold: 400 m medley, silver: 200 m medley; 1978 Bangkok SWM gold: 100 m freestyle, 200 m medley, 4×100 m freestyle relay, and 4×200 m freestyle relay, silver: 400 m medley | |
| Shoichi Yanagimoto | VVO | Olympics / Coach | 1976—2008 | 1–0–0 1974 Tehran VVO gold | |
| Satoshi Yanagisawa | ATH | Olympics | 2000 | 0–0–1 2002 Busan ATH bronze: 20 km walk | |
| Miyuki Yanagita | FBL | Olympics | 2004—2008 | 0–1–2 1998 Bangkok FBL bronze; 2002 Busan FBL bronze; 2006 Doha FBL silver | |
| Hiroshi Yanai | HBL | Olympics | 1988 | 0–1–1 1986 Seoul HBL bronze; 1990 Beijing HBL silver | |
| Akira Yanase | WPO | Olympics | 2016 | 0–1–1 2010 Guangzhou WPO bronze; 2014 Incheon WPO silver | |
| Kaori Yanase | SWM | Olympics | 1984 | 4–0–0 1982 New Delhi SWM gold: 100 m freestyle, 200 m freestyle, 4×100 m freestyle relay, and 4×100 m medley relay | |
| Yang Bin | WRE | Olympics | 2016 | 0–0–1 2018 Jakarta/Palembang WRE bronze: Greco-Roman middleweight -77 kg | |
| Yang Bo | GAR | Olympics | 1992 | 1–0–1 1990 Beijing GAR gold: team, bronze: balance beam | |
| Yang C. K. | ATH | Olympics | 1956—1964 | 2–2–1 1954 Manila ATH gold: decathlon; 1958 Tokyo ATH gold: decathlon, silver: 110 m hurdles and long jump, bronze: 400 m hurdles | |
| Yang Changling | WRE | Olympics | 1988 | 0–1–0 1990 Beijing WRE silver: Greco-Roman bantamweight -57 kg | |
| Yang Chien-Fu | BBL | Olympics | 2004—2008 | 0–1–0 2010 Guangzhou BSB silver | |
| Yang Chin-Yi | WLF | Olympics | 2000—2008 | 0–0–1 2002 Busan WLF bronze: bantamweight -56 kg | |
| Yang Chun-Song | WRE | Olympics | 2008 | 0–0–1 2010 Guangzhou WRE bronze: freestyle welterweight -66 kg | |
| Yang Chung-Yeol | SHO | Olympics | 1984—1988 | 1–0–4 1982 New Delhi SHO bronze: 25 m rapid-fire pistol team and 25 m standard pistol team; 1986 Seoul SHO gold: 25 m rapid-fire pistol team, bronze: 25 m centre fire pistol team and 25 m standard pistol team | |
| Yang Dal-Sik | FEN | Olympics | 1988 | 2–0–0 1990 Beijing FEN gold: épée and épée team | |
| Yang Eui-Yong | WLF | Olympics | 1980 | 1–1–0 1978 Bangkok WLF gold: bantamweight -56 kg; 1982 New Delhi WLF silver: bantamweight -56 kg | |
| Yang Hak-Seon | GAR | Olympics | 2012—2020 | 1–2–1 2010 Guangzhou GAR gold: vault, bronze: team; 2014 Incheon GAR silver: vault and team | |
| Yang Hao | VVO | Olympics | 2004—2008 | 2–0–0 2002 Busan VVO gold; 2006 Doha VVO gold | |
| Yang Hao | DIV | Olympics / YOG | 2014—2024 | 1–0–0 2018 Jakarta/Palembang DIV gold: synchronized platform | |
| Yang Haoran | SHO | Olympics / YOG | 2014—2020 | 3–1–0 2014 Incheon SHO gold: 10 m air rifle and 10 m air rifle team; 2018 Jakarta/Palembang SHO gold: 10 m air rifle, silver: 10 m air rifle mixed team | |
| Yang Hongbing | HOC | Olympics | 2000 | 0–1–1 1990 Beijing HOC silver; 1998 Bangkok HOC bronze | |
| Yang Hsiu-Chen | CRD/CTR | Olympics | 1988 | 0–0–1 1990 Beijing CRD bronze: sprint | |
| Yang Hui-Cheon | CTR | Olympics | 2004 | 0–1–1 2002 Busan CRD silver: sprint team; 2006 Doha CRD bronze: sprint team | |
| Yang Hui-Chun | SBL | Olympics | 1996—2004 | 0–1–2 1990 Beijing SOF bronze; 1994 Hiroshima SOF bronze; 2002 Busan SOF silver | |
| Yang Huiping | HOC | Olympics | 2000 | 0–1–1 1990 Beijing HOC silver; 1998 Bangkok HOC bronze | |
| Yang Hyo-Jin | VVO | Olympics | 2012—2020 | 1–1–1 2010 Guangzhou VVO silver; 2014 Incheon VVO gold; 2018 Jakarta/Palembang VVO bronze | |
| Yang Jeong-Mo | WRE | Olympics / Olympic Flagbearer | 1976—1988 | 2–0–0 1974 Tehran WRE gold: freestyle featherweight -62 kg; 1978 Bangkok WRE gold: freestyle featherweight -62 kg | |
| Yang Ji-Won | SWM | YOG | 2014 | 0–1–0 2014 Incheon SWM silver: 4×100 m medley relay | |
| Yang Jianping | ARC | Olympics | 1996—2000 | 0–0–1 2002 Busan ARC bronze: team | |
| Yang Jin-Su | VVO | Olympics | 1968 | 0–2–0 1966 Bangkok VVO silver; 1970 Bangkok VVO silver | |
| Yang Jin-Ung | VVO | Olympics | 1984 | 0–1–0 1986 Seoul VVO silver | |
| Yang Jun | WPO | Olympics | 2008—2016 | 2–0–0 2010 Guangzhou WPO gold; 2014 Incheon WPO gold | |
| Yang Junxia | JUD | Olympics | 2016—2020 | 0–1–1 2014 Incheon JUD silver: half-middleweight -63 kg, bronze: team | |
| Yang Junxuan | SWM | Olympics / YOG | 2018—2024 | 2–2–1 2018 Jakarta/Palembang SWM gold: 4×200 m freestyle relay and 4×100 m medley mixed relay (swam in heats only), silver: 200 m freestyle and 4×100 m freestyle relay, bronze: 100 m freestyle | |
| Yang Kun-Pi | SHO | Olympics | 2016—2024 | 1–1–0 2018 Jakarta/Palembang SHO gold: trap, silver: trap mixed team | |
| Yang Kyong-Il | WRE | Olympics | 2008—2016 | 0–1–0 2010 Guangzhou WRE silver: freestyle flyweight -55 kg | |
| Yang Ling | SHO | Olympics / Olympic Flagbearer | 1996—2008 | 2–1–1 2002 Busan SHO gold: 10 m running target team, bronze: 10 m running target; 2010 Guangzhou SHO gold: 10 m running target team men, silver: 10 m running target team mixed | |
| Yang Liqun | VVO | Olympics | 1984 | 1–0–0 1986 Seoul VVO gold | |
| Yang Noe-Seong | FEN | Olympics | 1996—2000 | 2–0–1 1998 Bangkok FEN gold: épée and épée team; 2002 Busan FEN bronze: épée team | |
| Yang Shaoqi | FEN | Olympics | 2000 | 1–0–1 1998 Bangkok FEN gold: épée team, bronze: épée | |
| Yang Shisen | FEN | Olympics | 1984 | 0–1–0 1978 Bangkok FEN silver: sabre team | |
| Yang Su-Jin | MPN | Olympics | 2012 | 1–2–1 2010 Guangzhou MPN silver: team, bronze: individual; 2014 Incheon MPN gold: team, silver: individual | |
| Yang Tae-Yeong | GAR | Olympics | 2004—2008 | 0–1–1 2002 Busan GAR silver: team; 2006 Doha GAR bronze: team | |
| Yang Wei | GAR | Olympics | 2000—2008 | 8–2–1 1998 Bangkok GAR gold: floor and team, silver: all-around; 2002 Busan GAR gold: all-around and team, silver: vault, bronze: floor; 2006 Doha GAR gold: all-around, parallel bars, rings, and team | |
| Yang Wei | BDM | Olympics | 2000—2008 | 2–1–1 2002 Busan BDM gold: team, bronze: doubles; 2006 Doha BDM gold: team, silver: doubles | |
| Yang Wenjun | CSP | Olympics | 2004—2008 | 3–1–0 2002 Busan CSP gold: C2 500 m and C2 1000 m; 2006 Doha CSP gold: C1 500 m, silver: C2 500 m | |
| Yang Wenqin | ATH | Olympics | 1984 | 0–0–2 1978 Bangkok ATH bronze: high jump; 1982 New Delhi ATH bronze: high jump | |
| Yang Wenyi | SWM | Olympics | 1988—1992 | 4–0–0 1990 Beijing SWM gold: 50 m freestyle, 100 m backstroke, 4×100 m freestyle relay, and 4×100 m medley relay | |
| Yang Xia | WLF | Olympics | 2000 | 1–0–0 1998 Bangkok WLF gold: featherweight -53 kg | |
| Yang Xiangzhong | BOX | Olympics | 1996—2000 | 0–1–0 1998 Bangkok BOX silver: light-flyweight -48 kg | |
| Yang Xiangzhong | BOX | Olympics | 1996—2000 | 0–1–0 1998 Bangkok BOX silver: light-flyweight -48 kg | |
| Yang Xiao | ROW | Olympics | 1984—1988 | 1–0–0 1986 Seoul ROW gold: coxless pais | |
| Yang Xiaojun | VVO | Olympics | 1984—1988 | 1–0–0 1986 Seoul VVO gold | |
| Yang Xilan | VVO | Olympics | 1984—1988 | 2–0–0 1982 New Delhi VVO gold; 1986 Seoul VVO gold | |
| Yang Xiuli | JUD | Olympics | 2008—2012 | 0–0–2 2006 Doha JUD bronze: half-heavyweight -78 kg; 2010 Guangzhou JUD bronze: half-heavyweight -78 kg | |
| Yang Yang | BDM | Non-Medal | 1988 | 1–3–0 1986 Seoul BDM silver: singles and team; 1990 Beijing BDM gold: team, silver: singles | |
| Yang Yansheng | ATH | Olympics | 2012 | 1–0–1 2006 Doha ATH bronze: pole vault; 2010 Guangzhou ATH gold: pole vault | |
| Yang Yaozu | ATH | Olympics | 2004 | 0–1–2 2002 Busan ATH bronze: 200 m; 2006 Doha ATH silver: 200 m, bronze: 4×100 m relay | |
| Yang Yilin | GAR | Olympics | 2008 | 1–0–0 2010 Guangzhou GAR gold: team | |
| Yang Yong | WPO | Olympics | 1988 | 1–1–0 1986 Seoul WPO gold; 1994 Hiroshima WPO silver | |
| Yang Yu | SWM | Olympics | 2000—2008 | 5–2–0 2002 Busan SWM gold: 200 m freestyle, 4×100 m freestyle relay, and 4×200 m freestyle relay, silver: 100 m freestyle; 2006 Doha SWM gold: 4×100 m freestyle relay and 4×200 m freestyle relay, silver: 200 m freestyle | |
| Yang Zhe | WLF | Olympics | 2016 | 2–0–0 2010 Guangzhou WLF gold: heavyweight -105 kg; 2014 Incheon WLF gold: heavyweight -105 kg | |
| Yang Zhen | FEN | Olympics / Referee | 1992—2008 | 2–0–0 1990 Beijing FEN gold: sabre team; 1994 Hiroshima FEN gold: sabre team | |
| Yang Zhixian | SWM | Olympics | 2012 | 0–1–0 2014 Incheon SWM silver: 400 m medley | |
| Naphaswan Yangpaiboon | SHO | Olympics / Opening Flagbearer | 2012—2020 | 0–1–0 2018 Jakarta/Palembang SHO silver: 25 m sporting pistol | |
| Hiromi Yano | VVO | Olympics | 1976 | 1–0–0 1974 Tehran VVO gold | |
| Kyoko Yano | FBL | Olympics | 2004—2012 | 1–1–0 2006 Doha FBL silver; 2010 Guangzhou FBL gold | |
| Rangsit Yanothai | SHO | Olympics / Opening Flagbearer | 1968—1984 | 1–5–2 1966 Bangkok SHO gold: 30 m rapid-fire pistol team, silver: 25 m centre fire pistol team and 50 m free pistol team, bronze: 25 m centre fire pistol; 1970 Bangkok SHO silver: 25 m centre fire pistol team and 25 m rapid-fire pistol team; 1978 Bangkok SHO silver: 10 m air pistol team, bronze: 25 m standard pistol team | |
| Yao Fen | BDM | Olympics | 1992 | 1–0–1 1990 Beijing BDM gold: team, bronze: doubles | |
| Yao Jianzhong | ROW | Olympics | 1992 | 1–0–0 1990 Beijing ROW gold: coxless fours | |
| Yao Jie | ATH | Olympics | 2016—2024 | 0–1–0 2018 Jakarta/Palembang ATH silver: pole vault | |
| Yao Jingyuan | WLF | Olympics | 1984 | 2–0–0 1982 New Delhi WLF gold: lightweight -67.5 kg; 1986 Seoul WLF gold: lightweight -67.5 kg | |
| Yao Jinnan | GAR | Olympics | 2012 | 4–0–0 2014 Incheon GAR gold: all-around, floor, uneven bars, and team | |
| Yao Ming | BKB | Olympics / Opening Flagbearer | 2000—2008 | 0–1–0 2002 Busan BKB silver | |
| Yao Yan | BDM | Olympics | 1996 | 0–0–1 1994 Hiroshima BDM bronze: team | |
| Yao Yawen | ARC | Olympics | 1988 | 0–1–0 1986 Seoul ARC silver: team | |
| Yao Ye | SHO | Olympics | 2004 | 1–3–1 1998 Bangkok SHO silver: 10 m air rifle team; 2002 Busan SHO gold: 50 m small-bore rifle 3 positions team, silver: 50 m small-bore rifle prone team and 50 m small-bore rifle 3 positions, bronze: 50 m small-bore rifle prone | |
| James Yap | BKB | Olympics | 1956 | 0–1–0 1954 Manila BKB silver | |
| Yap Kim Hock | BDM | Olympics | 1996—2000 | 0–0–2 1994 Hiroshima BDM bronze: mixed doubles and team | |
| Yap Pow Thong | SHO | Olympics | 1964 | 0–0–1 1974 Tehran SHO bronze: skeet team | |
| Salem Eid Yaqoob | ATH | Olympics | 2016 | 0–0–1 2018 Jakarta/Palembang ATH bronze: 200 m | |
| Dilshod Yarbekov | BOX | Olympics | 1996—2000 | 0–1–1 1994 Hiroshima BOX bronze: middleweight -75 kg; 1998 Bangkok BOX silver: middleweight -75 kg | |
| Dilshod Yarbekov | BOX | Olympics | 1996—2000 | 0–1–1 1994 Hiroshima BOX bronze: middleweight -75 kg; 1998 Bangkok BOX silver: middleweight -75 kg | |
| Oksana Yarygina | ATH | Olympics | 2004 | 1–0–0 1994 Hiroshima ATH gold: javelin throw (competed for Uzbekistan) | |
| Konstantin Yashin | CSP | Olympics | 1996 | 1–0–0 1998 Bangkok CSP gold: K4 1000 m | |
| Hirokazu Yasuda | ATH | Olympics | 1964 | 0–0–2 1958 Tokyo ATH bronze: 110 m hurdles; 1962 Jakarta ATH bronze: 110 m hurdles | |
| Kenya Yasuda | WPO | Olympics | 2016 | 0–1–0 2014 Incheon WPO silver | |
| Noriaki Yasuda | ATH | Olympics | 1960 | 1–0–0 1958 Tokyo ATH gold: pole vault | |
| Yasunori Yasuda | VVO | Olympics | 1976 | 1–0–0 1974 Tehran VVO gold | |
| Yoshihiro Yasumi | WPO | Olympics | 1972 | 1–0–0 1970 Bangkok WPO gold | |
| Yoshiaki Yatsu | WRE | Olympics | 1976 | 1–0–0 1978 Bangkok WRE gold: freestyle super-heavyweight +100 kg | |
| Ghasem Yavarkandi | BOX | Olympics | 1960 | 0–1–0 1958 Tokyo BOX silver: light-middleweight -71 kg | |
| Aki Yazawa | CSL | Olympics | 2016—2024 | 1–0–1 2014 Incheon CSP bronze: K1 slalom; 2018 Jakarta/Palembang CSP gold: K1 slalom | |
| Kazuki Yazawa | CSL | Olympics | 2008—2016 | 0–1–0 2010 Guangzhou CSP silver: K1 slalom | |
| Hassan Yazdani | WRE | Olympics | 2016—2024 | 1–0–0 2018 Jakarta/Palembang WRE gold: freestyle light-heavyweight -86 kg | |
| Reza Yazdani | WRE | Olympics | 2008—2016 | 3–0–0 2006 Doha WRE gold: freestyle light-heavyweight -84 kg; 2010 Guangzhou WRE gold: freestyle heavyweight -96 kg; 2014 Incheon WRE gold: freestyle heavyweight -97 kg | |
| Ye Chong | FEN | Olympics | 1988—2004 | 2–2–0 1990 Beijing FEN gold: foil and foil team; 1994 Hiroshima FEN silver: épée team and foil team | |
| Ye Lin | FEN | Olympics | 1992 | 1–0–0 1994 Hiroshima FEN gold: foil team | |
| Ye Nyunt | FBL | Olympics | 1972 | 1–0–0 1970 Bangkok FBL gold | |
| Ye Shiwen | SWM | Olympics | 2012—2024 | 5–0–0 2010 Guangzhou SWM gold: 200 m medley and 400 m medley; 2014 Incheon SWM gold: 200 m medley, 400 m medley, and 4×100 m freestyle relay | |
| Ye Zhaoying | BDM | Olympics | 1996—2000 | 1–0–2 1994 Hiroshima BDM bronze: singles and team; 1998 Bangkok BDM gold: team | |
| Katai Yeerlanbieke | WRE | Olympics | 2016 | 0–0–1 2014 Incheon WRE bronze: freestyle welterweight -65 kg | |
| Tatyana Yefimenko | ATH | Olympics | 2000—2008 | 1–1–0 2002 Busan ATH gold: high jump; 2006 Doha ATH silver: high jump | |
| Ivan Yefremov | WLF | Olympics | 2012—2016 | 0–1–0 2010 Guangzhou WLF silver: heavyweight -105 kg | |
| Aleksey Yegorov | SWM | Olympics | 1996—2000 | 0–1–1 1994 Hiroshima SWM silver: 4×100 m freestyle relay, bronze: 100 m freestyle (competed as for Kazakhstan) | |
| Grigory Yegorov | ATH | Olympics | 1988—2004 | 1–1–0 1994 Hiroshima ATH silver: pole vault (competed for Kazakhstan); 2002 Busan ATH gold: pole vault (competed for Kazakhstan) | |
| Yevgeny Yegorov | CSP | Olympics | 1996 | 3–2–2 1994 Hiroshima CSP bronze: K1 500 m and K1 1000 m; 1998 Bangkok CSP gold: K1 500 m and K2 1000 m; 2002 Busan CSP gold: K4 500 m, silver: K4 1000 m; 2010 Guangzhou CSP silver: K4 1000 m | |
| Yeh Chu-Mei | ATH | Olympics | 1964—1968 | 0–2–0 1966 Bangkok ATH silver: 4×100 m relay and pentathlon | |
| Yeh Chun-Chang | BBL | Olympics | 2004—2008 | 1–0–1 1994 Hiroshima BSB bronze; 2006 Doha BSB gold | |
| Yeh Chun-Chang | BBL | Olympics | 2004—2008 | 1–0–1 1994 Hiroshima BSB bronze; 2006 Doha BSB gold | |
| Yeh Wen-Hua | JUD | Olympics | 1996 | 0–1–0 1994 Hiroshima JUD silver: heavyweight +72 kg | |
| Daniyar Yeleusinov | BOX | Olympics | 2012—2016 | 2–0–0 2010 Guangzhou BOX gold: light-welterweight -64 kg; 2014 Incheon BOX gold: welterweight -69 kg | |
| Daniyar Yeleusinov | BOX | Olympics | 2012—2016 | 2–0–0 2010 Guangzhou BOX gold: light-welterweight -64 kg; 2014 Incheon BOX gold: welterweight -69 kg | |
| Margarita Yeliseyeva | WLF | Olympics | 2016 | 1–0–0 2014 Incheon WLF gold: flyweight -48 kg | |
| Aleksandr Yemelyanov | CSP | Olympics | 2016 | 1–2–1 2006 Doha CSP bronze: K1 500 m; 2010 Guangzhou CSP silver: K2 1000 m and K4 1000 m; 2014 Incheon CSP gold: K4 1000 m | |
| Mikhail Yemelyanov | CSP | Olympics | 2008 | 1–0–1 2010 Guangzhou CSP bronze: C2 1000 m; 2014 Incheon CSP gold: C2 1000 m | |
| Yen Kuo-Che | JUD | Olympics | 2000 | 0–0–1 1990 Beijing JUD bronze: open class | |
| Yen Show-Tzu | SBL | Olympics | 1996—2004 | 0–1–2 1990 Beijing SOF bronze; 1994 Hiroshima SOF bronze; 2002 Busan SOF silver | |
| Eric Yeo | WPO | Olympics | 1956 | 0–1–0 1958 Tokyo WPO silver | |
| Yeo Gap-Sun | SHO | Olympics | 1992 | 1–1–1 1994 Hiroshima SHO gold: 10 m air rifle team, bronze: 10 m air rifle; 1998 Bangkok SHO silver: 10 m air rifle team | |
| Yeo Hong-Cheol | GAR | Olympics | 1992—2000 | 2–2–0 1994 Hiroshima GAR gold: horse vault, silver: team; 1998 Bangkok GAR gold: horse vault, silver: team | |
| Joscelin Yeo | SWM | Olympics / Opening Flagbearer | 1992—2004 | 0–0–2 1994 Hiroshima SWM bronze: 100 m butterfly; 2002 Busan SWM bronze: 100 m butterfly | |
| Kenneth Yeo | SWM | Olympics | 1992 | 0–0–1 1990 Beijing SWM bronze: 4×100 m freestyle relay | |
| Yeo Kian Chye | ATH | Olympics | 1972 | 0–0–1 1974 Tehran ATH bronze: 4×100 m relay | |
| Samantha Yeo | SWM | YOG | 2014 | 0–0–1 2018 Jakarta/Palembang SWM bronze: 4×100 m medley relay | |
| Yeo Un-Gon | HOC | Olympics | 2000—2012 | 2–1–0 1998 Bangkok HOC silver; 2002 Busan HOC gold; 2006 Doha HOC gold | |
| Yeoh Ken Nee | DIV | Olympics / Referee | 2000—2024 | 0–2–4 2002 Busan DIV bronze: 3 m springboard and synchronised springboard; 2006 Doha DIV silver: synchronised springboard; 2010 Guangzhou DIV silver: synchronised springboard, bronze: 1 m springboard and 3 m springboard | |
| Yeom Dong-Cheol | WLF | Olympics | 1992 | 1–0–0 1990 Beijing WLF gold: light-heavyweight -82.5 kg | |
| Kayrat Yeraliyev | BOX | Olympics | 2016 | 0–0–1 2014 Incheon BOX bronze: bantamweight -56 kg | |
| Kayrat Yeraliyev | BOX | Olympics | 2016 | 0–0–1 2014 Incheon BOX bronze: bantamweight -56 kg | |
| Andrey Yerguchov | CSP | Olympics | 2016 | 1–1–0 2014 Incheon CSP gold: K4 1000 m; 2018 Jakarta/Palembang CSP silver: K2 1000 m | |
| Yernar Yerimbetov | GAR | Olympics | 2004 | 0–0–1 2006 Doha GAR bronze: vault | |
| Vladimir Yesheyev | ARC | Olympics | 1980—1992 | 0–0–1 1994 Hiroshima ARC bronze: team (competed for Kazakhstan) | |
| Yeung Chui Ling | FEN | Olympics | 2008—2012 | 0–0–5 2002 Busan FEN bronze: épée team; 2006 Doha FEN bronze: épée team; 2010 Guangzhou FEN bronze: épée and épée team; 2014 Incheon FEN bronze: épée team | |
| Jamie Yeung | SWM | Olympics / YOG | 2014—2020 | 0–1–2 2014 Incheon SWM bronze: 4×100 m medley relay (swam in heats only); 2018 Jakarta/Palembang SWM silver: 4×100 m medley relay, bronze: 4×200 m freestyle relay (swam in heats only) | |
| Yeung Wai-To | FBL | Non-starter | 1960 | 1–0–0 1958 Tokyo FBL gold | |
| Irina Yevdokimova | GAR | Olympics | 2000 | 0–1–5 1994 Hiroshima GAR bronze: floor and balance beam; 1998 Bangkok GAR silver: all-around, bronze: floor, horse vault, and team | |
| Yi Jianlian | BKB | Olympics / Opening Flagbearer | 2004—2016 | 1–0–0 2006 Doha BKB gold | |
| Yi Jingqian | TEN | Olympics | 1996—2000 | 0–1–3 1994 Hiroshima TEN bronze: team; 1998 Bangkok TEN silver: team, bronze: singles and doubles | |
| Yi Shanjun | WRE | Olympics | 2000 | 0–0–1 1998 Bangkok WRE bronze: Greco-Roman lightweight -63 kg | |
| Yi Siling | SHO | Olympics | 2012—2016 | 4–1–0 2010 Guangzhou SHO gold: 10 m air rifle, 10 m air rifle team, and 50 m small-bore rifle 3 positions team; 2014 Incheon SHO gold: 10 m air rifle team, silver: 50 m small-bore rifle prone team | |
| Yin Chengxin | SWA | Olympics | 2016—2020 | 2–0–0 2014 Incheon SWA gold: combination; 2018 Jakarta/Palembang SWA gold: team | |
| Yin Junhua | BOX | Olympics | 2016 | 2–0–0 2014 Incheon BOX gold: lightweight -60 kg; 2018 Jakarta/Palembang BOX gold: lightweight -57 kg | |
| Yin Junhua | BOX | Olympics | 2016 | 2–0–0 2014 Incheon BOX gold: lightweight -60 kg; 2018 Jakarta/Palembang BOX gold: lightweight -57 kg | |
| Yin Lianchi | FEN | Olympics | 2008 | 0–0–2 2010 Guangzhou FEN bronze: épée and épée team | |
| Yin Yijun | CSP | Olympics | 2004 | 0–0–1 2002 Busan CSP bronze: K2 1000 m | |
| Yin Yin | VVO | Olympics | 2000 | 1–0–0 1998 Bangkok VVO gold | |
| Yip Pui Yin | BDM | Olympics | 2008—2016 | 0–1–1 2006 Doha BDM silver: singles; 2010 Guangzhou BDM bronze: singles | |
| Yiu Cheuk-Yin | FBL | Olympics | 1960 | 2–0–0 1954 Manila FBL gold; 1958 Tokyo FBL gold | |
| Ikuko Yoda | ATH | Olympics | 1964 | 2–2–0 1958 Tokyo ATH gold: 4×100 m relay; 1962 Jakarta ATH gold: 80 m hurdles, silver: 200 m and 4×100 m relay | |
| Rajaratnam Yogeswaran | HOC | Olympics | 1964—1968 | 0–0–1 1962 Jakarta HOC bronze (competed for Malaya) | |
| T. C. Yohannan | ATH | Olympics | 1976 | 1–0–0 1974 Tehran ATH gold: long jump | |
| Saburo Yokomizo | ATH | Olympics | 1964 | 0–2–0 1962 Jakarta ATH silver: 5000 m and 3000 m steeplechase | |
| Yuki Yokosawa | JUD | Olympics | 2004 | 0–0–1 2006 Doha JUD bronze: half-lightweight -52 kg | |
| Tadayoshi Yokota | VVO | Olympics | 1968—1976 | 3–0–0 1966 Bangkok VVO gold; 1970 Bangkok VVO gold; 1974 Tehran VVO gold | |
| Hidekazu Yokoyama | WRE | Olympics | 1996—2004 | 0–0–2 1994 Hiroshima WRE bronze: freestyle middleweight -82 kg; 1998 Bangkok WRE bronze: Greco-Roman light-heavyweight -85 kg | |
| Juri Yokoyama | VVO | Olympics | 1976 | 2–0–0 1974 Tehran VVO gold; 1978 Bangkok VVO gold | |
| Kenzo Yokoyama | FBL | Olympics | 1964—1968 | 0–0–1 1966 Bangkok FBL bronze | |
| Kunihiko Yokoyama | BKB | Olympics | 1972 | 0–0–1 1970 Bangkok BKB bronze | |
| Takashi Yokoyama | WPO | Olympics | 1964 | 2–0–0 1962 Jakarta WPO gold; 1966 Bangkok WPO gold | |
| Doston Yokubov | WLF | Olympics | 2016 | 0–1–0 2018 Jakarta/Palembang WLF silver: lightweight -69 kg | |
| Eri Yonamine | CRD | Olympics | 2016—2024 | 0–1–1 2018 Jakarta/Palembang CRD silver: individual road time trial, bronze: road race | |
| Isao Yoneda | GAR | Olympics | 2004 | 0–0–1 1998 Bangkok GAR bronze: team | |
| Kanako Yonekura | BDM | Olympics | 2000—2004 | 1–1–1 1998 Bangkok BDM gold: singles, bronze: team; 2006 Doha BDM silver: team | |
| Teruyasu Yonekura | ATH | Olympics | 1996 | 0–0–1 1994 Hiroshima ATH bronze: pole vault | |
| Tatsuhiro Yonemitsu | WRE | Olympics | 2012 | 1–0–0 2010 Guangzhou WRE gold: freestyle welterweight -66 kg | |
| Edmund Yong | SHO | Olympics | 1976 | 0–0–1 1974 Tehran SHO bronze: skeet team | |
| Asami Yoshida | BKB | Olympics | 2016—2024 | 0–0–2 2006 Doha BKB bronze; 2010 Guangzhou BKB bronze | |
| Kurumi Yoshida | SWA | Olympics | 2012—2016 | 0–4–0 2010 Guangzhou SWA silver: team and combination; 2014 Incheon SWA silver: team and combination | |
| Masami Yoshida | ATH | Olympics | 1964 | 1–0–1 1966 Bangkok ATH gold: 4×400 m relay, bronze: 400 m | |
| Masami Yoshida | ATH | Olympics | 1984—1992 | 1–0–0 1990 Beijing ATH gold: javelin throw | |
| Ryoichi Yoshida | ATH | Olympics | 1984—1988 | 0–1–0 1986 Seoul ATH silver: 400 m hurdles | |
| Saori Yoshida | WRE | Olympics / Torch Bearer / Opening Flagbearer / Closing Flagbearer | 2004—2020 | 4–0–0 2002 Busan WRE gold: freestyle lightweight -55 kg; 2006 Doha WRE gold: freestyle lightweight -55 kg; 2010 Guangzhou WRE gold: freestyle lightweight -55 kg; 2014 Incheon WRE gold: freestyle lightweight -55 kg | |
| Setsuko Yoshida | VVO | Olympics | 1968 | 2–0–0 1962 Jakarta VVO gold: six-a-side and nine-a-side | |
| Takahisa Yoshida | ATH | Olympics | 2000 | 1–0–1 1990 Beijing ATH bronze: high jump; 1994 Hiroshima ATH gold: high jump | |
| Toshitada Yoshida | WRE | Olympics | 1972 | 1–0–0 1970 Bangkok WRE gold: freestyle welterweight -74 kg | |
| Yugo Yoshida | SAL | Olympics | 2012 | 1–0–0 2010 Guangzhou SAL gold: 470 | |
| Tomoko Yoshihara | VVO | Olympics | 1992—2004 | 0–0–2 1990 Beijing VVO bronze; 1994 Hiroshima VVO bronze | |
| Ayako Yoshikawa | ATH | Olympics | 1952 | 1–1–0 1951 New Delhi ATH gold: 4×100 m relay, silver: long hump | |
| Yoshihisa Yoshikawa | SHO | Olympics | 1960—1972 | 4–0–0 1962 Jakarta SHO gold: 50 m free pistol; 1966 Bangkok SHO gold: 50 m free pistol; 1970 Bangkok SHO gold: 25 m centre fire pistol team and 50 m free pistol team | |
| Jo Yoshimi | SWM | Olympics | 1996 | 0–1–0 1998 Bangkok SWM silver: 200 m medley | |
| Minoru Yoshimura | HOC | Olympics / Non-starter | 1964—1968 | 0–0–1 1966 Bangkok HOC bronze | |
| Haruo Yoshimuta | SWM | Olympics | 1960—1964 | 1–0–0 1966 Bangkok SWM gold: 4×200 m freestyle relay | |
| Toyoko Yoshino | ATH | Olympics | 1952—1956 | 5–0–0 1951 New Delhi ATH gold: shot put, discus throw, and javelin throw; 1954 Manila ATH gold: shot put and discus throw | |
| Miho Yoshioka | SAL | Olympics | 2016—2024 | 1–0–0 2018 Jakarta/Palembang SAL gold: 470 | |
| You Chin Hong | BOX | Olympics | 1964 | 0–0–1 1962 Jakarta BOX bronze: lightweight -60 kg | |
| You Wenhui | VBV | Olympics | 2004 | 0–1–0 2002 Busan VBV silver | |
| Muhammad Younis | ATH | Olympics | 1972—1976 | 1–2–0 1970 Bangkok ATH silver: 1500 m; 1974 Tehran ATH gold: 1500 m; 1978 Bangkok ATH silver: 1500 m | |
| Cherif Younousse | VBV | Olympics | 2016—2024 | 1–0–0 2018 Jakarta/Palembang VBV gold | |
| Aouf Abdul Rahman Youssef | ATH | Olympics | 1988 | 0–2–0 1982 New Delhi ATH silver: 4×400 m relay; 1986 Seoul ATH silver: 4×400 m relay | |
| Mohamed Ismail Youssef | ATH | Olympics | 1988—1992 | 0–1–0 1990 Beijing ATH silver: 4×400 m relay | |
| Muhammad Youssef | ATH | Olympics | 1964 | 0–1–0 1962 Jakarta ATH silver: marathon | |
| Imran Yousuf | HOC | Olympics | 2000 | 0–0–1 1998 Bangkok HOC bronze | |
| Irfan Yousuf | HOC | Olympics | 2000 | 0–0–1 1998 Bangkok HOC bronze | |
| Yu Bong-Hyeong | FEN | Olympics | 1992 | 1–0–3 1994 Hiroshima FEN gold: foil team, bronze: foil; 1998 Bangkok FEN bronze: foil and foil team | |
| Yu Chaohong | ATH | Olympics | 2004 | 0–1–0 2002 Busan ATH silver: 20 km walk | |
| Yu Chun-Ja | VVO | Olympics | 1964 | 0–3–0 1962 Jakarta VVO silver: six-a-side and nine-a-side; 1966 Bangkok VVO silver | |
| Yu Dan | SHO | Olympics | 2012 | 1–0–0 2010 Guangzhou SHO gold: 10 m air rifle team |