Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Patrick Abada | FRA |
ATH | Olympics | 1976 | 0–0–1 1979 Ciudad de México ATH bronze: pole vault |
| Patimat Abakarova | AZE |
TKW | Olympics | 2016 | 0–0–1 2019 Napoli TKW bronze: bantamweight -53 kg |
| Mariya Abakumova | RUS |
ATH | Olympics | 2008—2012 | 1–0–0 2013 Kazan ATH gold: javelin throw |
| Jesús Aballí | CUB |
DIV | Olympics | 2000 | 0–0–2 1997 Catania DIV bronze: platform; 1999 Palma de Mallorca DIV bronze: platform |
| Emanuele Abate | ITA |
ATH | Olympics | 2012 | 0–0–1 2009 Beograd ATH bronze: 110 m hurdles |
| Péter Abay | HUN |
FEN | Olympics | 1992 | 1–0–0 1987 Zagreb FEN gold: sabre team |
| Reema Abdo | CAN |
SWM | Olympics | 1984 | 0–0–1 1983 Edmonton SWI bronze: 4×100 m medley relay |
| Ruky Abdulai | CAN |
ATH | Olympics | 2008 | 0–0–1 2009 Beograd ATH bronze: long jump |
| Adlan Abdurashidov | RUS |
BOX | Olympics | 2016 | 1–0–0 2013 Kazan BOX gold: lightweight -60 kg |
| Naoki Abe | JPN |
ATH | Olympics | 1968 | 1–1–0 1967 Tokyo ATH gold: long jump, silver: 4×100 m relay |
| Ismail Abilov | BUL |
WRE | Olympics | 1976—1980 | 0–0–1 1977 Sofia WRE bronze: freestyle middleweight -82 kg |
| Denis Ablyazin | ROC RUS |
GAR | Olympics | 2012—2020 | 1–2–0 2013 Kazan GYM gold: team, silver: vault and rings |
| Viktor Aboimov | KAZ URS |
SWM | Olympics | 1972 | 1–2–0 1970 Torino SWI silver: 4×200 m freestyle relay; 1973 Moskva SWI gold: 4×200 m freestyle relay, silver: 4×100 m freestyle relay |
| Attila Ábrahám | HUN |
CSP | Olympics | 1988—1992 | 1–0–1 1987 Zagreb CAN gold: K4 1000 m, bronze: K1 500 m |
| Göran Abrahamsson | SWE |
FEN | Olympics / Referee | 1960—1992 | 0–0–1 1959 Torino FEN bronze: épée |
| Alena Abramchuk | BLR |
ATH | Olympics | 2016 | 0–0–1 2009 Beograd ATH bronze: shot put (competed as Yelena Kopets) |
| Andrey Abramov | RUS |
ARC | Olympics | 2008 | 0–0–1 2005 İzmir ARC bronze: recurve team |
| Inna Abramova | RUS URS |
SWM | Olympics | 1988 | 2–0–0 1985 Kobe SWI gold: 4×100 m freestyle relay and 4×200 m freestyle relay |
| Nelli Abramova | RUS URS |
VVO | Olympics | 1964 | 1–0–0 1965 Budapest VOL gold |
| Svetlana Abrosimova | RUS |
BKB | Olympics | 2000—2008 | 0–0–1 1999 Palma de Mallorca BAS bronze |
| Roberto Abugattás | PER |
ATH | Olympics | 1964—1968 | 0–0–1 1963 Porto Alegre ATH bronze: high jump |
| Ahmad Abughaush | JOR |
TKW | Olympics / Other | 2016 | 0–0–1 2017 Taipei TKW bronze: featherweight -68 kg |
| Aleksandr Abushakhmetov | RUS URS |
FEN | Olympics | 1976—1980 | 0–1–1 1977 Sofia FEN bronze: épée team; 1979 Ciudad de México FEN silver: épée team |
| Jaouad Achab | BEL |
TKW | Olympics | 2016—2020 | 1–0–0 2015 Gwangju TKW gold: bantamweight -63 kg |
| Georg Ackermann | GER |
ATH | Olympics | 1996 | 0–1–0 1995 Fukuoka ATH silver: long jump |
| Briseida Acosta | MEX |
TKW | Olympics / YOG | 2010—2020 | 0–0–1 2017 Taipei TKW bronze: heavyweight +73 kg |
| Amy Acuff | USA |
ATH | Olympics | 1996—2012 | 1–0–0 1997 Catania ATH gold: high jump |
| Patrycja Adamkiewicz | POL |
TKW | Olympics / YOG | 2014—2020 | 0–1–2 2017 Taipei TKW silver: Kyorugi team; 2019 Napoli bronze: featherweight -57 kg and Kyorugi team |
| Olapade Adeniken | NGR |
ATH | Olympics | 1988—1996 | 0–1–0 1989 Duisburg ATH silver: 100 m |
| Derrick Adkins | USA |
ATH | Olympics | 1996 | 2–0–0 1991 Sheffield ATH gold: 400 m hurdles; 1993 Buffalo ATH gold: 400 m hurdles |
| Elisângela Adriano | BRA |
ATH | Olympics | 1996—2008 | 0–0–2 1999 Palma de Mallorca ATH bronze: shot put and discus throw |
| Serhiy Advena | UKR |
SWM | Olympics | 2004—2008 | 1–1–1 2003 Daegu SWI silver: 200 m butterfly; 2005 İzmir SWI gold: 4×100 m medley relay, bronze: 100 m butterfly |
| Sara Aerts | BEL |
ATH/BOB | Olympics | 2012—2022 | 0–1–0 2007 Bangkok ATH silver: heptathlon |
| Kseniya Afanasyeva | RUS |
GAR | Olympics | 2008—2012 | 3–1–0 2013 Kazan GYM gold: floor, vault, and team, silver: all-around |
| Leonardo Affede | ITA |
FEN | YOG | 2010 | 0–0–1 2015 Gwangju FEN bronze: sabre |
| Bisi Afolabi | NGR |
ATH | Olympics | 1996—2000 | 1–0–1 1993 Buffalo ATH bronze: 4×400 m relay; 1995 Fukuoka ATH gold: 400 m |
| Ajayi Agbebaku | NGR |
ATH | Olympics | 1984 | 1–0–0 1983 Edmonton ATH gold: triple jump |
| Judit Ágoston-Mendelényi | HUN |
FEN | Olympics | 1964 | 0–1–1 1963 Porto Alegre FEN silver: foil team, bronze: foil |
| Judith Águila | CUB |
BKB | Olympics | 1992—1996 | 0–1–0 1993 Buffalo BAS silver |
| Jorge Aguilera | CUB |
ATH | Olympics | 1992 | 0–0–1 1993 Buffalo ATH bronze: 4×100 m relay |
| Juan Aguirre | ESP |
ROW | Olympics | 1992 | 0–1–0 1989 Duisburg ROW silver: lightweight coxless fours |
| Sri Wahyuni Agustiani | INA |
WLF | Olympics | 2016 | 0–0–1 2017 Taipei WLT bronze: flyweight -48 kg |
| Tontowi Ahmad | INA |
BDM | Olympics | 2012—2016 | 0–0–1 2007 Bangkok BDM bronze: team |
| Stefan Ahrens | GER |
DIV | Olympics | 2000 | 0–0–1 2001 Beijing DIV bronze: synchronized springboard |
| Mohammad Ahsan | INA |
BDM | Olympics | 2012—2020 | 0–0–1 2007 Bangkok BDM bronze: team |
| Pasquale Aiese | ITA |
ROW | Olympics | 1984 | 0–0–1 1987 Zagreb ROW bronze: coxless pairs |
| Yutaka Aihara | JPN |
GAR | Olympics | 1992 | 0–2–2 1991 Sheffield GYM silver: floor and team, bronze: horse vault and parallel bars |
| Samir Aït Saïd | FRA |
GAR | Olympics / Other | 2016—2020 | 0–1–0 2011 Shenzhen GYM silver: rings |
| Marina Aitova | KAZ |
ATH | Olympics / Non-starter | 2004—2012 | 1–0–0 2007 Bangkok ATH gold: high jump |
| Zita Ajkler | HUN |
ATH | Olympics | 2000—2004 | 0–0–1 2003 Daegu ATH bronze: long jump |
| Yukiko Akaba | JPN |
ATH | Olympics | 2008 | 0–1–1 1999 Palma de Mallorca ATH silver: half marathon; 2001 Beijing ATH bronze: 10000 m |
| Egamnazar Akbarov | UZB |
JUD | Olympics | 2004 | 1–0–0 2001 Beijing JUD gold: lightweight -73 kg |
| Taha Akgül | TUR |
WRE | Olympics / Other | 2012—2020 | 1–0–0 2013 Kazan WRE gold: freestyle super-heavyweight -120 kg |
| Artur Akhmatkhuzin | RUS |
FEN | Olympics | 2012—2016 | 2–0–1 2009 Beograd FEN gold: foil team; 2011 Shenzhen FEN bronze: foil team; 2013 Kazan FEN gold: foil team |
| Nataliya Akhrimenko | RUS URS |
ATH | Olympics | 1980—1988 | 0–1–1 1983 Edmonton ATH silver: discus throw, bronze: shot put |
| Lade Akinremi | NGR |
ATH | Olympics / Non-starter | 1996—2004 | 0–0–1 1993 Buffalo ATH bronze: 4×400 m relay |
| Halil Akkaş | TUR |
ATH | Olympics | 2008—2016 | 4–2–0 2005 İzmir ATH gold: 3000 m steeplechase; 2007 Bangkok ATH gold: 5000 m and 3000 m steeplechase; 2009 Beograd ATH gold: 5000 m, silver: 3000 m steeplechase; 2011 Shenzhen ATH silver: 3000 m steeplechase |
| Ime Akpan | NGR |
ATH | Olympics | 1996 | 0–0–1 1995 Fukuoka ATH bronze: 4×100 m relay |
| Aleksandr Aksinin | RUS URS |
ATH | Olympics | 1976—1980 | 1–1–0 1977 Sofia ATH gold: 4×100 m relay; 1981 București ATH silver: 4×100 m relay |
| Ohenewa Akuffo | CAN |
WRE | Olympics | 2008 | 1–0–0 2005 İzmir WRE gold: freestyle heavyweight -72 kg |
| Taiwo Aladefa | NGR |
ATH | Olympics | 1996 | 0–0–1 1995 Fukuoka ATH bronze: 4×100 m relay |
| Päivi Alafrantti | FIN |
ATH | Olympics | 1988—1992 | 0–0–1 1989 Duisburg ATH bronze: javelin throw |
| Michèle Alayrangues | FRA |
ATH | Olympics | 1968 | 1–0–0 1967 Tokyo ATH gold: 4×100 m relay |
| Toni Albanese | ITA |
FEN | Olympics | 1968 | 1–0–1 1961 Sofia FEN gold: épée team; 1963 Porto Alegre FEN bronze: épée team |
| Ruslan Albegov | RUS |
WLF | Olympics | 2012 | 1–0–0 2013 Kazan WLT gold: super-heavyweight +105 kg |
| Pierre Albertini | FRA |
JUD | Olympics | 1972 | 0–0–1 1967 Tokyo JUD bronze: half-middleweight -93 kg |
| Islam-Beka Albiyev | RUS |
WRE | Olympics | 2008—2016 | 0–1–0 2013 Kazan WRE silver: Greco-Roman welterweigth -66 kg |
| María José Alcalá | MEX |
DIV | Olympics / Administrator | 1988—2021 | 0–1–1 1995 Fukuoka DIV silver: 3 m springboard; 1997 Catania DIV bronze: 3 m springboard |
| Jannet Alegría | MEX |
TKW | Olympics | 2012 | 0–0–2 2007 Bangkok TKW bronze: flyweight -51 kg; 2009 Beograd TKW bronze: flyweight -51 kg |
| Mihail Aleksandrov | BUL |
SWM | Olympics | 2004—2008 | 0–1–1 2013 Kazan SWI silver: 100 m breaststroke, bronze: 4×100 m medley relay (competed for the United States) |
| Dmitry Aleksanin | KAZ |
FEN | Olympics | 2012 | 0–0–1 2013 Kazan FEN bronze: épée team |
| Artur Aleksanyan | ARM |
WRE | Olympics / Other | 2012—2020 | 0–1–0 2013 Kazan WRE silver: Heavyweight Greco-Roman |
| Milan Aleksić | SRB |
WPO | Olympics | 2012—2020 | 1–0–0 2005 İzmir WAP gold |
| Constantin Alexandru | ROU |
WRE | Olympics | 1976—1980 | 1–1–0 1977 Sofia WRE gold: Greco-Roman light-flyweight -48 kg; 1981 București WRE silver: Greco-Roman light-flyweight -48 kg |
| Vladimir Aleynik | BLR URS |
DIV | Olympics | 1976—1980 | 1–0–1 1979 Ciudad de México DIV gold: platform; 1981 București DIV bronze: platform |
| Mohamed Sid Ali Djouadi | ALG |
ATH | Olympics | 1972 | 0–0–1 1975 Roma ATH bronze: 800 m |
| Ahmed Ali Saleh | EGY |
TTE | Olympics | 2008—2020 | 0–0–1 2001 Beijing TTN bronze: team |
| Nia Ali | USA |
ATH | Olympics | 2016 | 1–0–0 2011 Shenzhen ATH gold 100 m hurdles |
| Elmir Alimzhanov | KAZ |
FEN | Olympics | 2012 | 0–0–1 2013 Kazan FEN bronze: épée team |
| Diane Allahgreen | GBR |
ATH | Olympics | 2000 | 0–0–1 1999 Palma de Mallorca ATH bronze: 100 m hurdles |
| Kanati Allen | USA |
GAR | Olympics | 1968 | 0–1–0 1967 Tokyo GYM silver: team |
| Liliana Allen | CUB MEX |
ATH | Olympics | 1992—2004 | 1–2–0 1989 Duisburg ATH gold: 100 m, silver: 200 m (competed for Cuba); 1993 Buffalo ATH silver: 100 m (competed for Cuba) |
| Ray Allen | USA |
BKB | Olympics | 2000 | 1–0–0 1995 Fukuoka BAS gold |
| Yusuf Alli | NGR |
ATH | Olympics / Other | 1980—1988 | 1–0–0 1983 Edmonton ATH gold: long jump |
| Audrey Alloh | ITA |
ATH | Olympics | 2008 | 1–0–0 2009 Beograd ATH gold: 4×100 m relay |
| Lynne Allsup | USA |
SWM | Olympics | 1964 | 1–1–0 1967 Tokyo SWI gold: 4×100 m freestyle relay, silver: 100 m freestyle |
| Rose Almanza | CUB |
ATH | Olympics | 2012—2020 | 1–0–0 2017 Taipei ATH gold: 800 m |
| Michel Almeida | POR |
JUD | Olympics | 1996—2000 | 0–0–1 1999 Palma de Mallorca JUD bronze: lightweight -73 kg |
| Maria Laura Almirão | BRA |
ATH | Olympics | 2004—2008 | 0–1–0 2001 Beijing ATH silver: 4×100 m relay |
| Mohamed Alouini | TUN |
ATH | Olympics | 1984 | 0–0–1 1983 Edmonton ATH bronze: 800 m |
| Misha Aloyan | RUS |
BOX | Olympics | 2012—2016 | 0–1–0 2013 Kazan BOX silver: flyweight -52 kg |
| Andrey Alshan | RUS URS |
FEN | Olympics | 1988 | 1–2–0 1981 București FEN silver: sabre and sabre team; 1985 Kobe FEN gold: sabre team |
| Juan María Altuna | ESP |
ROW | Olympics | 1992 | 0–1–0 1989 Duisburg ROW silver: lightweight coxless fours |
| Dorin Alupei | ROU |
ROW | Olympics | 1996—2000 | 1–0–0 1993 Buffalo ROW gold: coxed fours |
| José Miguel Álvarez | CUB |
BKB | Olympics | 1972 | 0–0–1 1970 Torino BAS bronze |
| Rafael Álvarez | ESP |
DIV | Olympics | 1992—2000 | 0–0–1 1999 Palma de Mallorca DIV bronze: 3 m springboard |
| Ana Álvaro | ESP |
BKB | Olympics | 1992 | 0–1–0 1991 Sheffield BAS silver |
| Thiago Alves | BRA |
VVO | Olympics | 2012 | 0–0–1 2011 Shenzhen VOL bronze |
| Nikolay Alyokhin | BLR URS |
FEN | Olympics | 1980 | 1–0–0 1979 Ciudad de México FEN gold: sabre team |
| Yevgeny Alyoshin | RUS |
SWM | Olympics | 2004 | 0–1–0 1999 Palma de Mallorca SWI silver: 4×100 m medley relay (swam in heats only) |
| Akgul Amanmuradova | UZB |
TEN | Olympics | 2008 | 0–0–1 2003 Daegu TEN bronze: singles |
| Amaury | BRA |
BKB | Olympics | 1956—1964 | 1–0–0 1963 Porto Alegre BAS gold |
| Miklós Ambrus | HUN |
SWM/WPO | Olympics / Non-starter | 1960—1964 | 0–0–1 1961 Sofia WAP bronze |
| Henry Amike | NGR |
ATH | Olympics | 1984—1988 | 0–1–0 1985 Kobe ATH silver: 400 m hurdles |
| Vladislav Aminov | RUS |
SWM | Olympics | 2000 | 0–1–1 1997 Catania SWI bronze: 4×100 m medley relay; 1999 Palma de Mallorca SWI silver: 4×100 m medley relay |
| Savitree Amitrapai | THA |
BDM | Olympics | 2016 | 0–0–4 2011 Shenzhen BDM bronze: doubles, mixed doubles, and team; 2013 Kazan BDM bronze: team |
| Agapius Amo | TAN |
ATH | Olympics | 1984 | 0–1–0 1983 Edmonton ATH silver: 10000 m |
| Nijel Amos | BOT |
ATH | Olympics / Other | 2012—2020 | 1–0–0 2013 Kazan ATH gold: 800 m |
| Iryna Amshennikova | UKR |
SWM | Olympics | 2004—2008 | 0–0–1 2005 İzmir SWI bronze: 100 m backstroke |
| An Ba-Ul | KOR |
JUD | Olympics | 2016—2020 | 2–1–0 2015 Gwangju JUD gold: half-lightweight -66 kg, silver: team; 2017 Taipei JUD gold: half-lightweight -66 kg |
| An Chang-Rim | KOR |
JUD | Olympics | 2016—2020 | 1–1–0 2015 Gwangju JUD gold: lightweight -73 kg, silver: team |
| An Kum-Ae | PRK |
JUD | Olympics | 2008—2012 | 0–1–1 2001 Beijing JUD bronze: half-lightweight -52 kg; 2003 Daegu JUD silver: half-lightweight -52 kg |
| An Myong-Hwa | PRK |
GAR | Olympics | 1992 | 1–1–1 1991 Sheffield GYM gold: team, silver: all-around, bronze: horse vault |
| Galina Anahrieva | BUL |
ROW | Olympics | 1988—1992 | 1–1–0 1987 Zagreb ROW silver: quadruple sculls; 1989 Duisburg ROW gold: quadruple sculls |
| Takamasa Anai | JPN |
JUD | Olympics | 2012 | 2–1–0 2003 Daegu JUD silver: team; 2007 Bangkok JUD gold: half-heavyweight -100 kg and team |
| Akhmed Anarbayev | KGZ URS |
SWM | Olympics | 1968 | 0–2–0 1970 Torino SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay |
| Émilie Andéol | FRA |
JUD | Olympics | 2016 | 0–1–3 2007 Bangkok JUD silver: team; 2011 Shenzhen JUD bronze: heavyweight +78 kg, open class, and team |
| Alyssa Anderson | USA |
SWM | Olympics | 2012 | 1–0–0 2011 Shenzhen SWI gold: 4×200 m freestyle relay (swam in heats only) |
| Andrea Anderson | USA |
ATH | Olympics | 2000 | 1–0–0 1997 Catania ATH gold: 4×100 m relay |
| Haley Anderson | USA |
OWS | Olympics | 2012—2020 | 1–1–0 2011 Shenzhen SWI gold: 1500 m freestyle, silver: 800 m freestyle |
| Jodi Anderson | USA |
ATH | Olympics | 1984 | 0–1–1 1977 Sofia ATH bronze: long jump; 1979 Ciudad de México ATH silver: long jump |
| Katie Anderson | CAN |
ATH | Olympics | 1988—2000 | 0–0–1 1993 Buffalo ATH bronze: 4×100 m relay |
| Wayne Anderson | USA |
SWM | Olympics | 1964 | 0–0–1 1965 Budapest SWI bronze: 200 m breaststroke |
| Tord Andersson | SWE |
DIV | Olympics | 1968 | 0–0–1 1967 Tokyo DIV bronze: 3 m springboard |
| Kozue Ando | JPN |
FBL | Olympics | 2004—2012 | 0–1–0 2003 Daegu FTB silver |
| Lyudmila Andonova | BUL |
ATH | Olympics | 1988—1992 | 0–1–0 1981 București ATH silver: high jump |
| Alessandro Andrei | ITA |
ATH | Olympics | 1984—1992 | 0–1–0 1985 Kobe ATH silver: shot put |
| Vasile Andrei | ROU |
WRE | Olympics / Other | 1980—1988 | 0–1–0 1981 București WRE silver: Greco-Roman heavyweight -100 kg |
| Enrique Andreu | ESP |
BKB | Olympics | 1988—1992 | 0–0–1 1987 Zagreb BAS bronze |
| Viktoriya Andreyeva | RUS |
SWM | Olympics | 2012—2016 | 4–1–0 2013 Kazan SWI gold: 200 m freestyle, 200 m medley, 4×100 m freestyle relay, and 4×100 m medley relay, silver: 4×200 m freestyle relay |
| Nikolay Andrianov | RUS URS |
GAR | Olympics | 1972—1980 | 4–1–0 1973 Moskva GYM gold: all-around, floor, pommelled horse, and team, silver: horse vault |
| Dragan Andrić | GRE SRB SCG YUG |
WPO | Olympics / Coach | 1984—2012 | 0–0–1 1987 Zagreb WAP bronze |
| Gheorghe Andriev | ROU |
CSP | Olympics | 1988—1996 | 0–1–1 1987 Zagreb CAN silver: C2 500 m, bronze: C2 1000 m |
| Spyros Andriopoulos | GRE |
ATH | Olympics | 1996 | 0–1–0 1987 Zagreb ATH silver: 10000 m |
| Vyacheslav Andrusenko | RUS |
SWM | Olympics | 2016 | 0–0–1 2017 Taipei SWI bronze: 4×200 m freestyle relay |
| Nedyalka Angelova | BUL |
ATH | Olympics | 1972 | 0–1–0 1970 Torino ATH silver: pentathlon |
| Gigel Anghel | ROU |
WRE | Olympics | 1976 | 0–0–1 1977 Sofia WRE bronze: freestyle featherweight -62 kg |
| Tatyana Anisimova | RUS URS |
ATH | Olympics | 1976—1980 | 3–1–1 1975 Roma ATH gold: 4×100 m relay, bronze: 100 m hurdles; 1977 Sofia ATH gold: 4×100 m relay, silver: 100 m hurdles; 1979 Ciudad de México ATH gold: 4×100 m relay |
| Emilia Ankiewicz | POL |
ATH | Olympics | 2016 | 0–1–0 2015 Gwangju ATH silver: 400 m hurdles |
| Eddy Annijs | BEL |
ATH | Olympics | 1984 | 0–1–0 1983 Edmonton ATH silver: high jump |
| Noriko Anno | JPN |
JUD | Olympics | 1996—2004 | 1–0–0 1995 Fukuoka JUD gold: open class |
| Adrián Annus | HUN |
ATH | Olympics | 1996—2004 | 0–0–1 2001 Beijing ATH bronze: hammer throw |
| Helmut Anschütz | GER FRG |
FEN | Olympics | 1960 | 0–0–1 1961 Sofia FEN bronze: épée team |
| LaDonna Antoine | CAN |
ATH | Olympics | 1996—2000 | 0–0–1 1997 Catania ATH bronze: 4×100 m relay |
| Semyon Antonov | RUS |
BKB | Olympics | 2012 | 1–0–0 2013 Kazan BAS gold |
| Aleksandra Antonova | RUS |
WPO | Olympics | 2012 | 1–0–1 2009 Beograd WAP bronze; 2013 Kazan WAP gold |
| Diana Antonova | RUS |
WPO | Olympics | 2012 | 1–0–1 2011 Shenzhen WAP bronze; 2013 Kazan WAP gold |
| Jitka Antošová | CZE |
ROW | Olympics | 2008—2012 | 0–1–0 2013 Kazan ROW silver: single sculls |
| Oļegs Antropovs | LAT URS |
VVO | Olympics | 1968 | 1–0–0 1973 Moskva VOL gold |
| Yelena Anyushina | RUS |
CSP | Olympics | 2016 | 0–1–0 2013 Kazan CAN silver: K4 500 m |
| Shinji Aoto | JPN |
ATH/BOB | Olympics | 1988—1998 | 0–0–1 1987 Zagreb ATH bronze: 4×100 m relay |
| Saïd Aouita | MAR |
ATH | Olympics / Non-starter | 1984—1992 | 1–0–0 1981 București ATH gold: 1500 m |
| Ayari Aoyama | JPN |
SWM | Olympics | 1996 | 0–0–1 2001 Beijing SWI bronze: 4×100 m freestyle relay |
| Eşref Apak | TUR |
ATH | Olympics | 2004—2020 | 0–1–0 2005 İzmir ATH silver: hammer throw |
| Kiradech Aphibarnrat | THA |
GLF | Olympics | 2016 | 1–0–0 2007 Bangkok GOL gold: team |
| Vladimer Aptsiauri | GEO URS |
FEN | Olympics | 1988 | 0–1–0 1981 București FEN silver: foil team |
| Enrique Aquino | MEX |
ATH | Olympics | 1980 | 0–1–1 1979 Ciudad de México ATH silver: 10000 m, bronze: 5000 m |
| Toshiaki Araki | JPN |
FEN | Olympics | 1964 | 1–0–1 1967 Tokyo FEN gold: foil team, bronze: épée team |
| José Roberto Aranha | BRA |
SWM | Olympics | 1968—1972 | 0–0–2 1973 Moskva SWI bronze: 4×100 m freestyle relay and 4×200 m freestyle relay |
| Rômulo Arantes | BRA |
SWM | Olympics | 1972—1980 | 1–1–2 1977 Sofia SWI gold: 100 m backstroke; 1979 Ciudad de México SWI silver: 100 m backstroke; 1981 București SWI bronze: 100 m backstroke and 4×100 m medley relay |
| Franjo Arapović | CRO YUG |
BKB | Olympics | 1988—1992 | 1–0–0 1987 Zagreb BAS gold (competed for Yugoslavia) |
| Anđelija Arbutina | SRB YUG |
BKB | Olympics | 1988 | 1–0–0 1987 Zagreb BAS gold |
| José Arcega | ESP |
BKB | Olympics | 1992 | 0–0–1 1987 Zagreb BAS bronze |
| Angelo Arcidiacono | ITA |
FEN | Olympics | 1976—1984 | 1–1–0 1977 Sofia FEN silver: sabre; 1981 București FEN gold: sabre team |
| Giulia Arcioni | ITA |
ATH | Olympics | 2008 | 1–0–0 2009 Beograd ATH gold: 4×100 m relay |
| Suzana Ardeleanu | ROU |
FEN | Olympics / Non-starter | 1972—1980 | 1–1–0 1970 Torino FEN silver: foil team; 1973 Moskva FEN gold: foil team |
| Walter Arena | ITA |
ATH | Olympics | 1992 | 1–0–0 1989 Duisburg ATH gold: 20 km walk |
| Yordanis Arencibia | CUB |
JUD | Olympics | 2000—2008 | 0–1–0 2003 Daegu JUD silver: half-lightweight -66 kg |
| Helga Arendt | FRG |
ATH | Olympics | 1988 | 0–1–0 1989 Duisburg ATH silver: 4×400 m relay |
| Blanca Ares | ESP |
BKB | Olympics | 1992 | 0–1–0 1991 Sheffield BAS silver |
| Franco Arese | ITA |
ATH | Olympics | 1968—1972 | 1–0–0 1970 Torino ATH gold: 1500 m |
| Luis Felipe Areta | ESP |
ATH | Olympics | 1960—1968 | 0–0–1 1963 Porto Alegre ATH bronze: triple jump |
| Yosuke Arimitsu | JPN |
DIV | Olympics | 1964—1968 | 1–0–0 1967 Tokyo DIV gold: platform |
| Ramil Aritkulov | RUS |
ATH | Olympics | 2004 | 0–1–0 2003 Daegu ATH silver: 800 m |
| Vasily Arkhipenko | URS UKR |
ATH | Olympics | 1980 | 0–1–0 1979 Ciudad de México ATH silver: 400 m hurdles |
| Mihaela Armășescu | ROU |
ROW | Olympics | 1984—1988 | 0–1–0 1987 Zagreb ROW silver: coxless pairs |
| Marie-Thérèse Armentero | SUI |
SWM | Olympics | 1984—1988 | 0–1–0 1987 Zagreb SWI silver: 50 m freestyle |
| Daniel Arnamnart | AUS |
SWM | Olympics | 2012 | 0–1–0 2013 Kazan SWI silver: 4×100 m freestyle relay |
| Isabelle Arnould | BEL |
SWM | Olympics | 1988—1992 | 0–1–1 1993 Buffalo SWI silver: 1500 m freestyle, bronze: 400 m freestyle |
| Marco Arpino | ITA |
FEN | Olympics | 1992—1996 | 1–1–1 1987 Zagreb FEN bronze: foil team; 1991 Sheffield FEN gold: foil team; 1993 Buffalo FEN silver: foil team |
| Valentina Arrighetti | ITA |
VVO | Olympics | 2012 | 1–0–0 2009 Beograd VOL gold |
| Vladimir Artyomov | RUS URS |
GAR | Olympics | 1988 | 3–3–2 1983 Edmonton GYM gold: team, silver: all-around, floor, and parallel bars; 1987 Zagreb GYM gold: parallel bars and team, bronze: all-around and horse vault |
| Nataliya Artyomova | RUS URS |
ATH | Olympics | 1988 | 0–0–1 1987 Zagreb ATH bronze: 3000 m |
| Zorana Arunović | SRB |
SHO | Olympics | 2012—2020 | 0–1–0 2011 Shenzhen SHO silver: 25 m sporting pistol |
| Tatyana Aryasova | RUS |
ATH | Olympics | 2008 | 0–1–0 2001 Beijing ATH silver: 5000 m (competed as Tatyana Khmeleva) |
| Donaldo Arza | PAN |
ATH | Olympics / Other | 1972 | 0–0–1 1970 Torino ATH bronze: 800 m |
| Vladimir Arzamaskov | RUS URS |
BKB | Olympics | 1976 | 0–1–0 1973 Moskva BAS silver |
| Yevgeny Arzhanov | URS UKR |
ATH | Olympics | 1968—1972 | 1–0–0 1973 Moskva ATH gold: 800 m |
| Shinobu Asagoe | JPN |
TEN | Olympics | 2000—2004 | 1–0–1 1995 Fukuoka TEN gold: doubles; 1997 Catania TEN bronze: doubles |
| Kentaro Asahi | JPN |
VBV | Olympics | 2008—2012 | 0–1–0 1999 Palma de Mallorca VOL silver |
| Kiyoshi Asai | JPN |
ATH | Olympics | 1964 | 0–1–0 1961 Sofia ATH silver: 4×100 m relay |
| Nugzar Asatiani | GEO URS |
FEN | Olympics | 1960—1964 | 0–2–0 1961 Sofia FEN silver: sabre and sabre team |
| Ali Ashkani | IRI |
WRE | Olympics | 2000—2004 | 1–0–0 2005 İzmir WRE gold: Greco-Roman lightweight -60 kg |
| Alina Astafei | GER ROU |
ATH | Olympics | 1988—1996 | 1–0–0 1989 Duisburg ATH gold: high jump (competed as Galina Astafei for Romania) |
| Ihar Astapkovich | BLR EUN |
ATH | Olympics / Other | 1992—2004 | 2–0–0 1987 Zagreb ATH gold: hammer throw (competed for the Soviet Union); 1989 Duisburg ATH gold: hammer throw (competed for the Soviet Union) |
| Vladimir Atamas | URS UKR |
ATH | Olympics | 1972 | 0–1–0 1973 Moskva ATH silver: 4×100 m relay |
| Atanaska Atanassova | BUL |
ATH | Non-starter | 1980 | 0–1–0 1977 Sofia ATH silver: 4×100 m relay |
| Sarah Atcho | SUI |
ATH | Olympics | 2016 | 1–0–0 2019 Napoli ATH gold: 4×100 m relay |
| Angela Atede | NGR |
ATH | Olympics | 1996—2000 | 1–0–0 1997 Catania ATH gold: 100 m hurdles |
| Loïc Attely | FRA |
FEN | Olympics | 2004 | 0–0–1 1999 Palma de Mallorca FEN bronze: foil team |