| Name | Nation | Sport | Games | Notes |
|---|
| Khalid El-Aabidi | Morocco | Weightlifting | 2016 Summer | |
| Gunnar Aaby | Denmark | Football | 1920 Summer | |
| Edgar Aabye | Tug of war | 1900 Summer | |
| Christine Aaftink | Netherlands | Speed skating | 1988 Winter, 1992 Winter, 1994 Winter | |
| Mikkel Aagaard | Denmark | Ice hockey | 2022 Winter | |
| Per Knut Aaland | Norway | Cross country skiing | 1976 Winter, 1980 Winter | |
| John Aalberg | United States | 1992 Winter, 1994 Winter | |
| Sarah van Aalen [ Wikidata ] | Netherlands | Volleyball | 2024 Summer | |
| Katrine Aalerud | Norway | Road cycling | 2020 Summer | |
| Cor Aalten | Netherlands | Athletics | 1932 Summer | |
| Antti Aalto | Finland | Ice hockey | 2002 Winter | |
| Antti Aalto | Ski jumping | 2018 Winter, 2022 Winter | |
| Einari Aalto | Swimming | 1952 Summer | |
| Jorma Aalto | Cross country skiing | 1980 Winter | |
| Jyri Aalto | Badminton | 2000 Summer | |
| Minna Aalto | Sailing | 1996 Summer, 2000 Summer | |
| Pirjo Aalto | Biathlon | 1994 Winter | |
| Arvo Aaltonen | Swimming | 1912 Summer, 1920 Summer, 1924 Summer | |
| Juhamatti Aaltonen | Ice hockey | 2014 Winter | |
| Miro Aaltonen | 2022 Winter | |
| Paavo Aaltonen | Artistic gymnastics | 1948 Summer, 1952 Summer | |
| Timo Aaltonen | Athletics | 2000 Summer | |
| Wäinö Aaltonen | Art competitions | 1948 Summer | |
| Aleksander Aamodt Kilde | Norway | Alpine skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Kjetil Aamodt | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter, 2006 Winter | |
| Ragnhild Aamodt | Handball | 2008 Summer | |
| Andreea Aanei | Romania | Weightlifting | 2016 Summer | |
| Fritz Aanes | Norway | Wrestling | 2000 Summer, 2004 Summer | |
| Nils Aaness | Speed skating | 1960 Winter, 1964 Winter | |
| Just van Aanholt [ Wikidata ] | Aruba | Sailing | 2024 Summer | |
| Odile van Aanholt | Netherlands | 2024 Summer | |
| Philipine van Aanholt | Independent Olympians, Aruba | 2012 Summer, 2016 Summer | |
| Alf Aanning | Norway | Artistic gymnastics | 1920 Summer | |
| Agnes Aanonsen | Luge | 1984 Winter | |
| Johan Aantjes | Netherlands | Water polo | 1984 Summer | |
| Osama El-Aarag | Qatar | Swimming | 2008 Summer | |
| Jan-Erik Aarberg | Norway | Sailing | 1968 Summer, 1972 Summer | |
| Maren Nyland Aardahl | Handball | 2024 Summer | |
| Willemien Aardenburg | Netherlands | Field hockey | 1988 Summer | |
| Pepijn Aardewijn | Rowing | 1996 Summer, 2000 Summer | |
| Eevald Äärma | Estonia | Athletics | 1936 Summer | |
| Ole Aarnæs | Norway | 1912 Summer | |
| Mika Aarnikka | Finland | Sailing | 1992 Summer, 1996 Summer | |
| Ann Kristin Aarønes | Norway | Football | 1996 Summer | |
| Paxten Aaronson | United States | 2024 Summer | |
| Jamale Aarrass | France | Athletics | 2012 Summer | |
| Dagfinn Aarskog | Norway | Bobsleigh | 1998 Winter | |
| Laura Aarts | Netherlands | Water polo | 2024 Summer | |
| Stefan Aartsen | Swimming | 1996 Summer, 2000 Summer | |
| Karl Aas | Norway | Artistic gymnastics | 1920 Summer | |
| Lars Aas | Fencing | 1912 Summer | |
| Roald Aas | Speed skating | 1952 Winter, 1956 Winter, 1960 Winter | |
| Rolf Aas | Football | 1920 Summer | |
| Th. Valentin Aass | Sailing | 1912 Summer | |
| Morten Aasen | Equestrian jumping | 1992 Summer | |
| Meelis Aasmäe | Estonia | Cross country skiing | 1998 Winter, 2002 Winter | |
| Victor Gairy Aasmul [ Wikidata ] | Denmark | Canoe sprint | 2024 Summer | |
| Hakon Aasnæs | Norway | Shooting | 1936 Summer | |
| Hans Aasnæs | 1936 Summer, 1948 Summer, 1952 Summer, 1956 Summer, 1960 Summer | |
| Erling Aastad | Athletics | 1920 Summer, 1924 Summer, 1928 Summer | |
| Abdelhak Aatkani | Morocco | Boxing | 2012 Summer | |
| Moonika Aava | Estonia | Athletics | 2004 Summer, 2008 Summer | |
| Arvi Aavik | Wrestling | 1992 Summer, 1996 Summer | |
| Samirkhon Ababakirov [ Wikidata ] | Kazakhstan | Taekwondo | 2024 Summer | |
| Leandro Ribera Abad | Spain | Water polo | 1952 Summer | |
| Néstor Abad | Artistic gymnastics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Liel Abada | Israel | Football | 2024 Summer | |
| Patrick Abada | France | Athletics | 1976 Summer | |
| Talaat Abada | Egypt | Taekwondo | 2000 Summer | |
| Adrián Abadía | Spain | Diving | 2024 Summer | |
| Antonio Abadía | Athletics | 2016 Summer | |
| René Abadie | France | Road cycling | 1956 Summer | |
| Ivan Abadzhiev | Bulgaria | Weightlifting | 1956 Summer, 1960 Summer | |
| Borislav Abadzhiev | Boxing | 1988 Summer | |
| Georgi Abadzhiev | Road cycling | 1924 Summer | |
| Mikhail Abadzhiev | Weightlifting | 1960 Summer | |
| Stefan Abadzhiev | Football | 1960 Summer | |
| Giovanni Abagnale | Italy | Rowing | 2016 Summer, 2020 Summer, 2024 Summer | |
| José Luis Abajo | Spain | Fencing | 2008 Summer | |
| Ismail Abakar | Qatar | Athletics | 2024 Summer | |
| M'Bairo Abakar | Chad | Judo | 1992 Summer | |
| Zelimkhan Abakarov | Albania | Wrestling | 2024 Summer | |
| Patimat Abakarova | Azerbaijan | Taekwondo | 2016 Summer | |
| Mohamed Abakkar | Sudan | Boxing | 1972 Summer | |
| Mariya Abakumova | Russia | Athletics | 2008 Summer, 2012 Summer | |
| Pablo Martín Abal | Argentina | Swimming | 2000 Summer | |
| Alberto Abalde | Spain | Basketball | 2020 Summer | |
| Tamara Abalde | 2008 Summer | |
| Jesús Aballí | Cuba | Diving | 2000 Summer | |
| Juan Aballí | Canoe sprint | 1992 Summer | |
| Aliaksei Abalmasau | Belarus | 2004 Summer, 2008 Summer | |
| Luc Abalo | France | Handball | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| María Laura Abalo | Argentina | Rowing | 2012 Summer | |
| Giorgos Abalof | Greece | Fencing | 2004 Summer | |
| Patrice Abanda | Cameroon | Football | 2000 Summer | |
| Antoine Abang | Boxing | 1968 Summer | |
| Salim Abanoz | Turkey | Judo | 1996 Summer | |
| Carlos Abarca | Chile | Boxing | 1924 Summer | |
| Josep María Abarca | Spain | Water polo | 1996 Summer | |
| Mohamed Abarhoun | Morocco | Football | 2012 Summer | |
| Georgios Abaris | Greece | 2004 Summer | |
| César Abaroa | Chile | Rowing | 2020 Summer, 2024 Summer | |
| Enrique Abaroa | Mexico | Tennis | 2000 Summer | |
| Farida Abaroge | Refugee Olympic Team | Athletics | 2024 Summer | |
| Carlos Abarza | Chile | Shooting | 1992 Summer | |
| Stephen Abas | United States | Wrestling | 2004 Summer | |
| Alejandro Abascal | Spain | Sailing | 1976 Summer, 1980 Summer, 1984 Summer | |
| José Manuel Abascal | Athletics | 1980 Summer, 1984 Summer | |
| Rostom Abashidze | Soviet Union | Wrestling | 1964 Summer | |
| Nunu Abashydze | Athletics | 1980 Summer | |
| Rodrigo Abasolo | Chile | Rowing | 1984 Summer | |
| Vahid Abasov | Serbia | Boxing | 2024 Summer | |
| Abobakr Abass | Sudan | Swimming | 2020 Summer | |
| Tamilla Abassova | Russia | Track cycling | 2004 Summer | |
| Emanuele Abate | Italy | Athletics | 2012 Summer | |
| Ignazio Abate | Football | 2008 Summer | |
| Samuel Abate | Ethiopia | Athletics | 2020 Summer | |
| Joël Abati | France | Handball | 2004 Summer, 2008 Summer | |
| Raúl Abatte | Chile | Shooting | 1984 Summer | |
| Georgia Abatzidou | Greece | Athletics | 2004 Summer | |
| Carlos Abaunza | Nicaragua | 2004 Summer | |
| Carlos Alberto Abaunza | 1976 Summer | |
| Héctor Abaunza | Mexico | Fencing | 1968 Summer | |
| Burak Abay | Turkey | Road cycling | 2024 Summer | |
| Péter Abay | Hungary | Fencing | 1992 Summer | |
| Oszkár Abay-Nemes | Swimming | 1936 Summer | |
| Adeyemi Abayomi | Nigeria | Boxing | 1972 Summer | |
| Sayed Abaza | Egypt | Football | 1920 Summer, 1928 Summer | |
| Marouane Mamane Hamissou Abba [ Wikidata ] | Niger | Swimming | 2024 Summer | |
| Silvano Abbà | Italy | Modern pentathlon | 1936 Summer | |
| Ilyas Abbadi | Algeria | Boxing | 2012 Summer, 2016 Summer | |
| Yumin Abbadini | Italy | Artistic gymnastics | 2024 Summer | |
| Agostino Abbagnale | Rowing | 1988 Summer, 1996 Summer, 2000 Summer | |
| Carmine Abbagnale | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Giuseppe Abbagnale | 1980 Summer, 1984 Summer, 1988 Summer, 1992 Summer | |
| Vincenzo Abbagnale | 2020 Summer, 2024 Summer | |
| Abbas Abubakar Abbas | Bahrain | Athletics | 2016 Summer | |
| Abdul Latif Abbas | Kuwait | 1976 Summer, 1980 Summer | |
| Aqarab Abbas | Pakistan | 1996 Summer | |
| Aziz Abbas | Iraq | Weightlifting | 1964 Summer | |
| Bassim Abbas | Football | 2004 Summer | |
| Essa Abbas | Kuwait | Athletics | 1980 Summer | |
| Fatimah Abbas | Iraq | Shooting | 2020 Summer | |
| Ghulam Abbas | Pakistan | Athletics | 1992 Summer | |
| Halima Abbas [ Wikidata ] | Egypt | Weightlifting | 2024 Summer | |
| Hosni Abbas | United Arab Republic, Egypt | 1960 Summer, 1964 Summer | |
| Maher Abbas | Lebanon | Athletics | 1988 Summer | |
| Mahmoud Abbas | Egypt | Road cycling | 2000 Summer | |
| Mohamed Fakhry Abbas | Diving | 1952 Summer | |
| Mohammed Abbas | Iraq | Swimming | 2004 Summer | |
| Muhammad Abbas | Pakistan | Alpine skiing | 2010 Winter | |
| Nader Sufyan Abbas | Qatar | Weightlifting | 2004 Summer | |
| Nasr Eddin Abbas | Sudan | Football | 1972 Summer | |
| Nour Abbas [ Wikidata ] | Egypt | Shooting | 2024 Summer | |
| Omar Abbas [ Wikidata ] | Syria | Swimming | 2024 Summer | |
| Sohail Abbas | Pakistan | Field hockey | 2000 Summer, 2004 Summer, 2012 Summer | |
| Youssef Abbas | Egypt | Basketball | 1952 Summer | |
| Zulkifli Abbas | Malaysia | Field hockey | 1984 Summer | |
| Hamideh Abbasali | Iran | Karate | 2020 Summer | |
| Forough Abbasi | Alpine skiing | 2014 Winter, 2018 Winter | |
| Kamil Al-Abbasi | Saudi Arabia | Athletics | 1976 Summer | |
| Shakeel Abbasi | Pakistan | Field hockey | 2004 Summer, 2008 Summer, 2012 Summer | |
| Soulmaz Abbasi | Iran | Rowing | 2012 Summer | |
| Islam Abbasov | Azerbaijan | Wrestling | 2020 Summer | |
| Ruslan Abbasov | Athletics | 2008 Summer | |
| Tural Abbasov | Swimming | 2008 Summer | |
| Tarana Abbasova | Weightlifting | 2000 Summer | |
| El-Hassan El-Abbassi | Bahrain | Athletics | 2016 Summer, 2020 Summer | |
| Simona Abbate | Italy | Water polo | 2012 Summer | |
| Fliura Abbate-Bulatova | Soviet Union, Italy | Table tennis | 1988 Summer, 1996 Summer | |
| Franz Abbé | Germany | Artistic gymnastics | 1900 Summer | |
| Christian Abbiati | Italy | Football | 2000 Summer | |
| Lois Abbingh | Netherlands | Handball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Alessandro Abbio | Italy | Basketball | 2000 Summer | |
| Giordano Abbondati | Figure skating | 1964 Winter, 1968 Winter | |
| Emily Abbot | Australia | Rhythmic gymnastics | 2020 Summer | |
| Bill Abbott Jr. | Canada | Sailing | 1996 Summer, 2000 Summer | |
| Clare Abbott | Ireland | Equestrian eventing | 2016 Summer | |
| David Abbott | United States | Athletics | 1928 Summer | |
| Des Abbott | Australia | Field hockey | 2008 Summer | |
| Geoffrey Abbott | South Africa | 2008 Summer | |
| Jeremy Abbott | Canada | Canoe sprint | 1976 Summer | |
| Jeremy Abbott | United States | Figure skating | 2010 Winter, 2014 Winter | |
| Joanne Abbott | Canada | Sailing | 1996 Summer | |
| Katie Abbott | 2008 Summer | |
| Mara Abbott | United States | Road cycling | 2016 Summer | |
| Margaret Abbott | Golf | 1900 Summer | |
| Mary Abbott | 1900 Summer | |
| Matt Abbott | Canada | Sailing | 2000 Summer | |
| Monica Abbott | United States | Softball | 2008 Summer, 2020 Summer | |
| Kamel Abboud | Algeria | Boxing | 1984 Summer | |
| Sadoon Abboud | Iraq | 1988 Summer | |
| Khadija Abbouda | Morocco | Archery | 2008 Summer | |
| Mohamed Abd Al-Jawad | Saudi Arabia | Football | 1984 Summer | |
| Mahmoud Abd El Kader | Egypt | Volleyball | 2008 Summer | |
| Mohamed Abd El-Salam | Handball | 2004 Summer, 2008 Summer | |
| Noha Abd Rabo | Taekwondo | 2008 Summer | |
| Reem Abdalazem | Artistic swimming | 2008 Summer, 2012 Summer | |
| Abubaker Haydar Abdalla | Qatar | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Ali Abdalla | Eritrea | 2008 Summer | |
| Hossam Abdalla | Egypt | Volleyball | 2016 Summer, 2024 Summer | |
| Mohamed El-Sir Abdalla | Sudan | Football | 1972 Summer | |
| Yaseen Abdalla | Athletics | 2024 Summer | |
| Raida Abdallah Bader | Jordan | 1984 Summer | |
| Abdel Aziz Ben Abdallah | Tunisia | Volleyball | 1984 Summer, 1988 Summer | |
| Hosam Abdallah | Egypt | Handball | 1992 Summer, 1996 Summer | |
| Ismail Abdallah | United Arab Republic | Artistic gymnastics | 1960 Summer | |
| Maged Abdallah | Egypt | Fencing | 1992 Summer | |
| Nia Abdallah | United States | Taekwondo | 2004 Summer | |
| Omari Abdallah | Tanzania | Athletics | 1964 Summer, 1972 Summer | |
| Ould Lamine Abdallah | France | 1952 Summer | |
| Younis Abdallah | Kuwait | 1972 Summer | |
| Abdallah Abdalsalam | Egypt | Volleyball | 2008 Summer | |
| Montader Abdel Amir | Iraq | Football | 2024 Summer | |
| Mahmoud Abdel Aziz | Egypt | Volleyball | 2000 Summer | |
| Mohamed Abdel Ellah | Shooting | 2000 Summer, 2004 Summer, 2008 Summer | |
| Mohamed Abdel Fatah | Sudan | Football | 1972 Summer | |
| Mahmoud Atter Abdel Fattah | United Arab Republic | Athletics | 1960 Summer | |
| Mohamed Abdel Fattah | Egypt | Road cycling | 2000 Summer | |
| Sayed Abdel Gadir | Sudan | Boxing | 1960 Summer, 1968 Summer | |
| Heba Abdel Gawad | Egypt | Artistic swimming | 2000 Summer, 2004 Summer | |
| Sara Abdel Gawad | 2000 Summer | |
| Gamal Amin Abdel Ghani | Field hockey | 1992 Summer | |
| Abdel Sattar Abdel Hadj | United Arab Republic | Rowing | 1960 Summer | |
| Ragy Abdel Hady | Egypt | Water polo | 2004 Summer | |
| Mohamed Abdel Hafiz | United Arab Republic | 1960 Summer | |
| Moustafa Ali Abdel Halim | Egypt | Weightlifting | 1976 Summer | |
| Mohamed Abdel Hamed | Volleyball | 1984 Summer | |
| El-Sayed Abdel Hamid Mobarak | Basketball | 1972 Summer | |
| Ibrahim Abdel Hamid | Wrestling | 1948 Summer | |
| Moustafa Abdel Kader | United Arab Republic | Athletics | 1960 Summer | |
| Mohamed Ali Abdel Kerim | Egypt, United Arab Republic | Weightlifting | 1952 Summer, 1960 Summer | |
| Mohamed Abdel Khaled | Tunisia | Handball | 1976 Summer | |
| Radwa Abdel Latif | Egypt | Shooting | 2020 Summer | |
| Walid Abdel Maksoud | Handball | 2008 Summer | |
| Hamza Abdel Mawla | Football | 1952 Summer | |
| Mohamed Abdel Mohamed | Handball | 1992 Summer | |
| Karim Abdel Mohsen | Water polo | 2004 Summer | |
| Awad Abdel Nabi | Basketball | 1972 Summer, 1976 Summer | |
| Ali Abdel Radi | Rowing | 1964 Summer | |
| Kamal Abdel Rehim | 2000 Summer | |
| Amin Abdel Rahman | United Arab Republic, Egypt | Water polo | 1960 Summer, 1964 Summer | |
| Fathi Abdel Rahman | Egypt | Boxing | 1952 Summer | |
| Ibrahim Abdel Rahman | United Arab Republic | Water polo | 1960 Summer | |
| Khaled Abdel Rahman | Egypt | Volleyball | 1984 Summer | |
| Mohamed Abdel Rahman | Fencing | 1936 Summer, 1948 Summer, 1952 Summer | |
| Sameh Abdel Rahman | United Arab Republic, Egypt | 1960 Summer, 1964 Summer | |
| Samy Abdel Razek | Egypt | Shooting | 2008 Summer, 2016 Summer, 2020 Summer | |
| Yousra Abdel Razek | Table tennis | 2016 Summer, 2020 Summer | |
| Ali Abdel Sami | Rowing | 1964 Summer | |
| Mohamed Abdel Sami | United Arab Republic | 1960 Summer | |
| Sameh Abdel Waress | Egypt | Handball | 1996 Summer | |
| Mohamed Said Abdel Wehab | Boxing | 1976 Summer | |
| Hwad Abdel | Sudan | 1968 Summer | |
| Ahmed Abdelaal | Egypt | Volleyball | 2016 Summer | |
| Ahmed Abdelaal [ Wikidata ] | Rowing | 2024 Summer | |
| Mahmoud Abdelaal | Boxing | 2016 Summer | |
| Mahmoud Abdel-Aal | Artistic gymnastics | 1948 Summer | |
| Mohamed Abdelaal | Judo | 2016 Summer, 2020 Summer | |
| Moustafa Abdel-Aal | Artistic gymnastics | 1948 Summer | |
| Mahmod Abdelaly | Shooting | 2008 Summer | |
| Abdalla Abdelaziz | Karate | 2020 Summer | |
| Farah Abdelaziz | Table tennis | 2020 Summer | |
| Feryal Abdelaziz | Karate | 2020 Summer | |
| Youssef Abdel-Aziz [ Wikidata ] | Table tennis | 2024 Summer | |
| Mohamed Abdelbaki | Weightlifting | 2008 Summer, 2012 Summer | |
| Farida Abdelbary [ Wikidata ] | Artistic swimming | 2024 Summer | |
| Mohamed Abdel-El | Wrestling | 1948 Summer | |
| Mohamed Abdelfatah | 2000 Summer, 2004 Summer, 2012 Summer | |
| Aziza Abdelfattah | Artistic swimming | 2008 Summer | |
| Abdalla Abdelgadir | Sudan | Athletics | 2008 Summer | |
| Abderahman Abdelgani [ Wikidata ] | Egypt | Judo | 2024 Summer | |
| Magdi Abdelghani | Football | 1984 Summer | |
| Marwa Abdelhady | Beach volleyball | 2024 Summer | |
| Mohab Abdelhak [ Wikidata ] | Handball | 2024 Summer | |
| Ragab Abdelhay | Weightlifting | 2012 Summer, 2016 Summer | |
| Justin Abdelkader | United States | Ice hockey | 2022 Winter | |
| Mohamed Hamdy Abdelkader [ Wikidata ] | Egypt | Shooting | 2024 Summer | |
| Ben Ahmed Abdelkrim | France | Athletics | 1952 Summer | |
| Brahim Id Abdellah | Morocco | Alpine skiing | 1992 Winter | |
| Ayoub Abdellaoui | Algeria | Football | 2016 Summer | |
| Abdellatif Abdellatif | Egypt | Wrestling | 1984 Summer, 1988 Summer | |
| Hossam Abdelmaguid | Football | 2024 Summer | |
| Jamal Abdelmaji | Refugee Olympic Team | Athletics | 2020 Summer, 2024 Summer | |
| Salma Abdelmaksoud [ Wikidata ] | Egypt | Modern pentathlon | 2024 Summer | |
| Mohamed Abdelmawgoud | Judo | 2020 Summer | |
| Leila Abdelmoez | Artistic swimming | 2016 Summer | |
| Sayed Abdelmoneim | Wrestling | 2012 Summer | |
| Jawad Abdelmoula [ Wikidata ] | Morocco | Triathlon | 2024 Summer | |
| Bushara Abdel-Nadief | Sudan | Football | 1972 Summer | |
| Abeer Abdelrahman | Egypt | Weightlifting | 2008 Summer, 2012 Summer | |
| Ihab Abdelrahman | Athletics | 2012 Summer, 2020 Summer, 2024 Summer | |
| Mahmoud Abdelrahman [ Wikidata ] | Wrestling | 2024 Summer | |
| Raouf Abdelraouf | Artistic gymnastics | 2000 Summer | |
| Abouelfetoh Abdelrazek | Handball | 2008 Summer | |
| Mamdouh Abdelrehim | Volleyball | 2016 Summer | |
| Rezkalla Mohamed Abdelrehim | Boxing | 2000 Summer | |
| Nour Abdelsalam | Taekwondo | 2020 Summer | |
| Hamdy Abdelwahab | Wrestling | 2016 Summer | |
| Ahmed Abdelwahed | Italy | Athletics | 2020 Summer | |
| El Hachemi Abdenouz | Algeria | 1980 Summer | |
| Réda Abdenouz | 1988 Summer, 1992 Summer | |
| Mouni Abderrahim | Volleyball | 2008 Summer, 2012 Summer | |
| Saeid Abdevali | Iran | Wrestling | 2012 Summer, 2016 Summer | |
| Bashir Abdi | Belgium | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Fayik Abdi | Saudi Arabia | Alpine skiing | 2022 Winter | |
| Youcef Abdi | Australia | Athletics | 2008 Summer, 2012 Summer | |
| Mohamed Abdilaahi | Germany | 2020 Summer | |
| Talal Omar Abdillahi | Djibouti | 1988 Summer, 1992 Summer | |
| Hosam Bakr Abdin | Egypt | Boxing | 2008 Summer, 2016 Summer | |
| Mahmoud Abdin | Fencing | 1928 Summer, 1936 Summer, 1948 Summer | |
| Abdihakem Abdirahman | United States | Athletics | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2020 Summer | |
| Ahmed Abdo Mustafa | Sudan | Football | 1972 Summer | |
| Ali Abdo | Australia | Wrestling | 2000 Summer, 2004 Summer, 2008 Summer | |
| Reema Abdo | Canada | Swimming | 1984 Summer | |
| Samyar Abdoli [ Wikidata ] | Iran | 2024 Summer | |
| Nasrollah Abdollahi | Football | 1976 Summer | |
| Firouz Abdolmohammadian | Water polo | 1976 Summer | |
| Abdelrahman Abdou | Egypt | Handball | 2024 Summer | |
| Ahmed Salah Abdou | Swimming | 2008 Summer | |
| Hassan Abdou | Comoros | Athletics | 1996 Summer | |
| Justin Abdou | Canada | Wrestling | 2000 Summer | |
| Moustafa Abdou | Egypt | Football | 1984 Summer | |
| Raouf Abdou | Modern pentathlon | 2004 Summer | |
| Hamza Abdouh | Palestine | Swimming | 2008 Summer | |
| Djamolidine Abdoujaparov | Soviet Union, Uzbekistan | Road cycling | 1988 Summer, 1996 Summer | |
| Brahim Abdoulaye | Chad | Athletics | 1996 Summer | |
| Fawziya Abdoulkarim | Cameroon | Volleyball | 2016 Summer | |
| Alaa El-Din Abdoun | Egypt | Basketball | 1988 Summer | |
| Ibrahim Abdrabbou | Boxing | 1952 Summer | |
| Berik Abdrakhmanov | Kazakhstan | 2016 Summer | |
| Chairil Anwar Abdul Aziz | Malaysia | Field hockey | 1996 Summer, 2000 Summer | |
| Mohd Abdul Hadi | 1992 Summer | |
| Hadi Abdul Jabbar | Iraq | Weightlifting | 1960 Summer, 1964 Summer | |
| T. Abdul Rahman | India | Football | 1956 Summer | |
| Abdul Rashid | Pakistan | Field hockey | 1968 Summer, 1972 Summer, 1976 Summer | |
| Lala Abdul Rashid | 1960 Summer | |
| Abdul Sattar Abdul Razzak | Iraq | Athletics | 1960 Summer | |
| Mohamed Abdul Razzak | 1960 Summer | |
| Fathimath Nabaaha Abdul Razzaq | Maldives | Badminton | 2020 Summer, 2024 Summer | |
| Qazi Abdul Waheed | Pakistan | Field hockey | 1952 Summer | |
| Sardar Abdul Wahid | Afghanistan | 1936 Summer | |
| Kola Abdulai | Nigeria | Athletics | 1968 Summer, 1972 Summer | |
| Ruky Abdulai | Canada | 2008 Summer | |
| Haidar Abdul-Amir | Iraq | Football | 2004 Summer | |
| Saad Abdul-Amir | 2016 Summer | |
| Shaimaa Abdul-Aziz | Egypt | Table tennis | 2000 Summer, 2008 Summer | |
| Zagalav Abdulbekov | Soviet Union | Wrestling | 1972 Summer | |
| Roosevelt Abdulgafur | Philippines | Swimming | 1968 Summer | |
| Hussein Abdulghani | Saudi Arabia | Football | 1996 Summer | |
| Ibrahim Abdulhalim | United Arab Republic | Rowing | 1960 Summer | |
| Saud Abdulhamid | Saudi Arabia | Football | 2020 Summer | |
| Magomed Abdulhamidov | Azerbaijan | Boxing | 2012 Summer | |
| Mohamed Abdulhusain | Bahrain | Handball | 2020 Summer | |
| Haidar Abdul-Jabar | Iraq | Football | 2004 Summer | |
| Ammar Abduljabbar | Germany | Boxing | 2020 Summer | |
| Ahmed Abdul-Karim | Iraq | 2012 Summer | |
| Gamal Ahmed Abdulla | Egypt | Field hockey | 1992 Summer | |
| Mohamed Sayed Abdulla | 1992 Summer | |
| Noor Yussuf Abdulla | Bahrain | Swimming | 2020 Summer | |
| Gulomjon Abdullaev | Uzbekistan | Wrestling | 2020 Summer, 2024 Summer | |
| Muhammad Abdullaev | Boxing | 1996 Summer, 2000 Summer | |
| Muminjon Abdullaev | Wrestling | 2012 Summer, 2016 Summer, 2020 Summer | |
| Ruslan Abdullaev | Boxing | 2024 Summer | |
| Abdel Wahab Abdullah Salih | Sudan | 1968 Summer, 1972 Summer | |
| Abdul Rahman Al-Abdullah | Qatar | Athletics | 1996 Summer | |
| Abdullah Basheer Al-Abdullah | Football | 1992 Summer | |
| Ahmad Hassan Abdullah | Athletics | 2008 Summer | |
| Ahmed Abdullah | Egypt | Swimming | 1988 Summer | |
| Aquil Abdullah | United States | Rowing | 2004 Summer | |
| Bashar Abdullah | Kuwait | Football | 2000 Summer | |
| Ben Saïd Abdallah | France | Athletics | 1948 Summer | |
| Hussein Abdullah [ Wikidata ] | Iraq | Football | 2024 Summer | |
| Jamal Al-Abdullah | Qatar | Athletics | 1984 Summer | |
| Magdy Ahmed Abdullah | Egypt | Field hockey | 1992 Summer | |
| Majed Abdullah | Saudi Arabia | Football | 1984 Summer | |
| Mohamed Abdullah | Iraq | Athletics | 1960 Summer | |
| Mohamed Abdullah | United Arab Emirates | 1984 Summer | |
| Mohamed Abdullah | Swimming | 1988 Summer | |
| Mohamed Abu Abdullah | Bangladesh | Athletics | 2008 Summer | |
| Namat Abdullah | Malaysia | Football | 1972 Summer | |
| Nurul Huda Abdullah | Swimming | 1988 Summer | |
| Rahmat Erwin Abdullah | Indonesia | Weightlifting | 2020 Summer | |
| Sami Al-Abdullah | Qatar | Athletics | 1992 Summer, 1996 Summer | |
| Shaharuddin Abdullah | Malaysia | Football | 1972 Summer | |
| Tewfik Abdullah | Egypt | 1920 Summer | |
| Zarinah Abdullah | Singapore | Badminton | 1992 Summer, 1996 Summer | |
| Sadiq Abdullahi | Nigeria | Tennis | 1988 Summer | |
| Shehu Abdullahi | Football | 2016 Summer | |
| Abdulkadir Abdullayev | Azerbaijan | Boxing | 2016 Summer | |
| Arif Abdullayev | Wrestling | 1996 Summer, 2000 Summer | |
| Mahammad Abdullayev | Boxing | 2020 Summer, 2024 Summer | |
| Namig Abdullayev | Wrestling | 1996 Summer, 2000 Summer, 2004 Summer | |
| Layes Abdullayeva | Athletics | 2012 Summer | |
| Ilfat Abdullin | Kazakhstan | Archery | 2020 Summer, 2024 Summer | |
| Mohammed Abdul-Monem | Iraq | Weightlifting | 2004 Summer | |
| Waleed Al-Mohamed Abdulmuhsin [ Wikidata ] | Kuwait | Rowing | 1988 Summer | |
| Ilgar Abdulov | Azerbaijan | Wrestling | 2008 Summer | |
| Mohannad Abdul-Raheem | Iraq | Football | 2016 Summer | |
| Amer Abdulrahman | United Arab Emirates | 2012 Summer | |
| Omar Abdulrahman | 2012 Summer | |
| Mariam Abdul-Rashid | Canada | Athletics | 2024 Summer | |
| Zeyad Abdulrazak | Kuwait | 1988 Summer, 1992 Summer | |
| Haidar Abdul-Razzaq | Iraq | Football | 2004 Summer | |
| Mohamed Abdulredha | Bahrain | Handball | 2020 Summer | |
| Hazim Abdulridha | Iraq | Wrestling | 1980 Summer | |
| Waheed Abdul-Ridha | Boxing | 2016 Summer | |
| Hakeem Abdul-Saboor | United States | Bobsleigh | 2018 Winter, 2022 Winter | |
| Mohammed Abdul-Sattar | Iraq | Wrestling | 1988 Summer | |
| Sameer Abdulshaker | Saudi Arabia | Football | 1984 Summer | |
| Sherzod Abdurahmonov | Uzbekistan | Boxing | 2004 Summer | |
| Rasul Abduraim | Kyrgyzstan | Taekwondo | 2008 Summer, 2012 Summer | |
| Aider Abduraimov | Ukraine | Boxing | 2024 Summer | |
| Elnur Abduraimov | Uzbekistan | 2020 Summer | |
| Rasuljon Abdurakhimov | Artistic gymnastics | 2020 Summer, 2024 Summer | |
| Zafarmurod Abdurakhmatov | Football | 2024 Summer | |
| Bekzod Abdurakhmonov | Wrestling | 2016 Summer, 2020 Summer | |
| Mukhamadmurod Abdurakhmonov | Tajikistan | Judo | 2016 Summer | |
| Adlan Abdurashidov | Russia | Boxing | 2016 Summer | |
| Shareef Abdur-Rahim | United States | Basketball | 2000 Summer | |
| Yusup Abdusalomov | Tajikistan | Wrestling | 2004 Summer, 2008 Summer, 2012 Summer | |
| Munira Abdusalomova [ Wikidata ] | Taekwondo | 2024 Summer | |
| Ziyodakhon Abdusattorova [ Wikidata ] | Uzbekistan | Archery | 2024 Summer | |
| Fawzi Abdussalam | Libya | Track cycling | 1980 Summer | |
| Andrey Abduvaliyev | Unified Team, Uzbekistan | Athletics | 1992 Summer, 2000 Summer | |
| Aybek Abdymomunov | Kyrgyzstan | Boxing | 2004 Summer | |
| Hifumi Abe | Japan | Judo | 2020 Summer, 2024 Summer | |
| Isao Abe | Athletics | 1936 Summer | |
| Kazumi Abe | Bobsleigh | 1972 Winter, 1976 Winter | |
| Kazuo Abe | Wrestling | 1960 Summer | |
| Kinya Abe | Fencing | 1992 Summer | |
| Kiyoshi Abe | Wrestling | 1972 Summer | |
| Masashi Abe | Nordic combined | 1988 Winter, 1992 Winter, 1994 Winter | |
| Naoki Abe | Athletics | 1968 Summer | |
| Osamu Abe | Rowing | 1936 Summer | |
| Sanshiro Abe | Wrestling | 1996 Summer | |
| Shigeaki Abe | Basketball | 1972 Summer, 1976 Summer | |
| Shinnosuke Abe | Baseball | 2000 Summer, 2008 Summer | |
| Tadashi Abe | Rowing | 1984 Summer, 1988 Summer, 1992 Summer | |
| Tadatoshi Abe | Field hockey | 1960 Summer | |
| Takatoshi Abe | Athletics | 2020 Summer | |
| Uta Abe | Judo | 2020 Summer, 2024 Summer | |
| Wakako Abe | Road cycling | 1984 Summer | |
| Yoshiyuki Abe | 2000 Summer | |
| Yuki Abe | Football | 2004 Summer | |
| Addis Abebe | Ethiopia | Athletics | 1992 Summer | |
| Biruk Abebe | Road cycling | 1992 Summer | |
| Mekides Abebe | Athletics | 2020 Summer | |
| Younis Abed Ali | Iraq | Football | 1988 Summer | |
| Benaissa Abed | Algeria | Boxing | 1988 Summer | |
| Shannon-Ogbnai Abeda | Eritrea | Alpine skiing | 2018 Winter, 2022 Winter | |
| Mojtaba Abedini | Iran | Fencing | 2012 Summer, 2016 Summer, 2020 Summer | |
| Paul Van Den Abeele | Belgium | Sailing | 1992 Summer | |
| Peter Van Den Abeele | Cycling mountain bike | 1996 Summer, 2000 Summer | |
| Théophile Abega | Cameroon | Football | 1984 Summer | |
| Max Abegglen | Switzerland | 1924 Summer, 1928 Summer | |
| Alexandre Abeid | Brazil | Volleyball | 1972 Summer, 1976 Summer | |
| Sonia Abejón | Spain | Rhythmic gymnastics | 2004 Summer | |
| Adolf Abel | Germany | Art competitions | 1928 Summer | |
| Brooke Abel | United States | Artistic swimming | 2008 Summer | |
| George Abel | Canada | Ice hockey | 1952 Winter | |
| Günther Abel | West Germany | Nordic combined | 1976 Winter, 1980 Winter | |
| Irene Abel | East Germany | Artistic gymnastics | 1972 Summer | |
| Jennifer Abel | Canada | Diving | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Katja Abel | Germany | Artistic gymnastics | 2008 Summer | |
| María Abel | Spain | Athletics | 2000 Summer, 2004 Summer | |
| Roger Abel | Monaco | Shooting | 1924 Summer, 1936 Summer, 1948 Summer, 1952 Summer | |
| Sten Abel | Norway | Sailing | 1920 Summer | |
| Taffy Abel | United States | Ice hockey | 1924 Winter | |
| Yaritza Abel | Cuba | Judo | 2012 Summer | |
| Matthew Abela | Malta | Badminton | 2020 Summer | |
| Arthur Abele | Germany | Athletics | 2008 Summer, 2016 Summer | |
| Ruth Abeles | Israel | Artistic gymnastics | 1960 Summer | |
| Louis Abell | United States | Rowing | 1900 Summer, 1904 Summer | |
| José Abella | Mexico | Football | 2016 Summer | |
| Ramón Abella | Uruguay | Water polo | 1948 Summer | |
| Raúl Abella | Argentina | Biathlon | 1980 Winter | |
| Alfonso Abellán | Spain | Athletics | 1988 Summer | |
| Juan Abellán | Water polo | 1952 Summer | |
| Teresa Abelleira | Football | 2024 Summer | |
| Katelyn Abeln [ Wikidata ] | United States | Shooting | 2024 Summer | |
| Ahmed Abdelrahman | Egypt | Judo | 2016 Summer | |
| Konrad Abeltshauser | Germany | Ice hockey | 2022 Winter | |
| Magnus Abelvik Rød | Norway | Handball | 2020 Summer | |
| Angélique Abemane | Republic of the Congo | 1980 Summer | |
| Tesfaye Abera | Ethiopia | Athletics | 2016 Summer | |
| Hugo Aberastegui | Argentina | Rowing | 1968 Summer, 1972 Summer, 1976 Summer | |
| Arvid Åberg | Sweden | Athletics | 1912 Summer | |
| Björn Åberg | Freestyle skiing | 1992 Winter | |
| Georg Åberg | Athletics | 1912 Summer | |
| Helena Åberg | Swimming | 1988 Summer | |
| Karl Åberg [ Wikidata ] | Finland | Wrestling | 1912 Summer | |
| Ludvig Åberg | Sweden | Golf | 2024 Summer | |
| Majken Åberg | Athletics | 1948 Summer | |
| Olle Åberg | 1952 Summer | |
| Max Äberli | Switzerland | Track cycling | 1948 Summer | |
| Anne Abernathy | Virgin Islands | Luge | 1988 Winter, 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter | |
| Brent Abernathy | United States | Baseball | 2000 Summer | |
| Moira Abernethy | South Africa | Swimming | 1956 Summer | |
| Salim Abes | Algeria | Handball | 1996 Summer | |
| Edmée Abetel | Switzerland | Alpine skiing | 1952 Winter | |
| Pasqualino Abeti | Italy | Athletics | 1972 Summer | |
| Yupun Abeykoon | Sri Lanka | 2020 Summer | |
| Elvan Abeylegesse | Turkey | 2004 Summer, 2008 Summer | |
| Ruwani Abeymanne | Sri Lanka | Shooting | 2000 Summer | |
| Kyle Abeysinghe | Swimming | 2024 Summer | |
| Matthew Abeysinghe | 2016 Summer, 2020 Summer | |
| Narek Abgaryan | Armenia | Boxing | 2016 Summer | |
| Agustina Nkechi Abi | Nigeria | Handball | 1992 Summer | |
| Koutoua Abia | Ivory Coast | Canoe sprint | 1992 Summer, 1996 Summer, 2008 Summer | |
| Pablo Abián | Spain | Badminton | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| David Abibssira | France | Shooting | 1984 Summer | |
| Mohamed Abicha | Morocco | Beach volleyball | 2020 Summer, 2024 Summer | |
| Lorena Abicht | Austria | Sailing | 2020 Summer, 2024 Summer | |
| Silke Abicht | East Germany | Diving | 1988 Summer | |
| Haithem Abid | Tunisia | Football | 1988 Summer | |
| Mohamed Bin Abid | United Arab Emirates | Swimming | 1988 Summer, 1992 Summer | |
| Ahmed Zein El-Abidin | United Arab Republic, Egypt | Fencing | 1960 Summer, 1968 Summer | |
| Abidine Abidine | Mauritania | Athletics | 2020 Summer | |
| Jaiye Abidoye | Nigeria | 1972 Summer | |
| Sagat Abikeyeva | Kazakhstan | Judo | 2008 Summer | |
| Mitsuhiro Abiko | Japan | Athletics | 2008 Summer | |
| Tomomi Abiko | 2012 Summer | |
| Catherine Abilla | Kenya | Rugby sevens | 2016 Summer | |
| Ismail Abilov | Bulgaria | Wrestling | 1976 Summer, 1980 Summer | |
| Camille Abily | France | Football | 2012 Summer, 2016 Summer | |
| Ana Abina | Slovenia | Handball | 2024 Summer | |
| Ema Abina | 2024 Summer | |
| Endurance Abinuwa | Nigeria | Athletics | 2012 Summer | |
| Bode Abiodun | Table tennis | 2016 Summer | |
| Deborah Abiodun | Football | 2024 Summer | |
| Firmin Abissi | Benin | Boxing | 1980 Summer, 1984 Summer | |
| Sarah Abitbol | France | Figure skating | 1998 Winter | |
| Inga Abitova | Russia | Athletics | 2008 Summer | |
| Jeyhun Abiyev | Azerbaijan | Boxing | 2004 Summer | |
| Abdullah Abkar Mohammed | Saudi Arabia | Athletics | 2016 Summer | |
| Diana Abla | Brazil | Water polo | 2016 Summer | |
| Enver Ablaev | Ukraine | Freestyle skiing | 2002 Winter, 2006 Winter, 2010 Winter | |
| Leslie Ablett | Great Britain | Water polo | 1928 Summer, 1936 Summer | |
| Ed Ablowich | United States | Athletics | 1932 Summer | |
| Denis Ablyazin | Russia, Russian Olympic Committee | Artistic gymnastics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Karin Abma | Netherlands | Rowing | 1976 Summer | |
| Abner Vinícius | Brazil | Football | 2020 Summer | |
| Mohamed Salah Abo Gresha | Egypt | 1992 Summer | |
| Théorine Aboa Mbeza | Cameroon | Volleyball | 2016 Summer | |
| Felix Aboagye | Ghana | Football | 1996 Summer | |
| Bukola Abogunloko | Nigeria | Athletics | 2012 Summer | |
| Viktor Aboimov | Soviet Union | Swimming | 1972 Summer | |
| Karim Abokahla | Egypt | Weightlifting | 2024 Summer | |
| Mohamed Aboker | Somalia | Athletics | 1972 Summer | |
| Ilze Ābola | Latvia | Alpine skiing | 1998 Winter | |
| Judith Esseng Abolo | Cameroon | Judo | 2000 Summer | |
| Rodrigo Ābols | Latvia | Ice hockey | 2022 Winter | |
| Agnese Āboltiņa | Alpine skiing | 2014 Winter | |
| Abdulla Aboobacker | India | Athletics | 2024 Summer | |
| Abdul Razzak Aboobakur [ Wikidata ] | Maldives | 1988 Summer | |
| Marwan Suhail Abood | Iraq | Wrestling | 1984 Summer | |
| Matthew Abood | Australia | Swimming | 2016 Summer | |
| Piroska Abos | Spain | Cross country skiing | 1988 Winter | |
| Jean-Pierre Abossolo-Ze | Cameroon | Athletics | 1984 Summer | |
| Bachir Hani Abou Assi | Lebanon | Wrestling | 1972 Summer | |
| Ahmed Abou El Fotouh | Egypt | Football | 2020 Summer | |
| Mohamed Abou El-Ela | Wrestling | 2000 Summer | |
| Galal El-Din Abdel Meguid Abou El-Kheir | Water polo | 1952 Summer | |
| Helmi Abou El-Maati | Football | 1948 Summer | |
| Magdy Abou El-Magd | Handball | 2000 Summer | |
| Abdel Khlik Abou El-Yazi | Field hockey | 1992 Summer | |
| Mohamed Abou Habaga | Football | 1948 Summer | |
| Zid Abou Hamed | Syria | Athletics | 2000 Summer | |
| Youssef Abou Ouf | Egypt | Basketball | 1948 Summer, 1952 Summer | |
| Zakaria Aboub | Morocco | Football | 2000 Summer | |
| Inni Aboubacar | Niger | Athletics | 1988 Summer | |
| Aminata Aboubakar Yacoub | Republic of the Congo | Swimming | 2012 Summer | |
| Ahmed Aboud | Iraq | Boxing | 1992 Summer | |
| Fathi Aboud | Libya | Athletics | 1988 Summer | |
| Hadel Aboud | 2020 Summer | |
| Rabah Aboud | Algeria | 2012 Summer | |
| Djamili-Dini Aboudou Moindze | France | Boxing | 2024 Summer | |
| Mamdouh Abouebaid | Egypt | Handball | 2016 Summer | |
| Mahmoud Abouelelaa | Volleyball | 1976 Summer, 1984 Summer | |
| Ashraf Abouelhassan | 2000 Summer, 2008 Summer, 2016 Summer | |
| Youssef Abouelhassan | Track cycling | 2024 Summer | |
| Alaaeldin Abouelkassem | Fencing | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Fatima-Ezzahra Aboufaras | Morocco | Taekwondo | 2024 Summer | |
| Mohamed Abouhalima | Egypt | Wrestling | 2012 Summer | |
| Nancy Genzel Abouke | Nauru | Weightlifting | 2020 Summer | |
| Waguih Aboul Seoud | Egypt | Diving | 1968 Summer | |
| Sherif Fouad Aboulkheir | Basketball | 1972 Summer | |
| Dany Abounaoum | Lebanon | Alpine skiing | 1992 Winter | |
| Ahmed Abou-Shadi | Egypt | Fencing | 1948 Summer, 1952 Summer | |
| Abdel Fattah Abou-Shanab | United Arab Republic, Egypt | Rowing | 1960 Summer, 1964 Summer | |
| Amira Aboushokka [ Wikidata ] | Egypt | Shooting | 2024 Summer | |
| Sédonoudé Abouta | Mali | Football | 2004 Summer | |
| Mohamed Aboutrika | Egypt | 2012 Summer | |
| Ahmad Shah Abouwi | Afghanistan | Field hockey | 1956 Summer | |
| Gaber Abouzeid | Egypt | Volleyball | 1976 Summer, 1984 Summer | |
| Taher Abouzeid | Football | 1984 Summer | |
| Adeola Aboyade-Cole | Nigeria | Athletics | 1972 Summer | |
| Cheryl Abplanalp | United States | Handball | 1996 Summer | |
| Alexander Abraham | Germany | Athletics | 1912 Summer | |
| Andrei Abraham | Romania | Artistic gymnastics | 1936 Summer | |
| Antonia Abraham | Chile | Rowing | 2024 Summer | |
| Attila Ábrahám | Hungary | Canoe sprint | 1988 Summer, 1992 Summer | |
| Gary Abraham | Great Britain | Swimming | 1976 Summer, 1980 Summer | |
| Lilla Minna Ábrahám | Hungary | 2024 Summer | |
| Melita Abraham | Chile | Rowing | 2016 Summer, 2024 Summer | |
| Shiny Abraham | India | Athletics | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Tadesse Abraham | Switzerland | 2016 Summer, 2020 Summer, 2024 Summer | |
| Mariola Abrahamczyk | Poland | Rowing | 1980 Summer | |
| Ara Abrahamian | Sweden | Wrestling | 2000 Summer, 2004 Summer, 2008 Summer | |
| Stéphan Abrahamian | France | Road cycling | 1968 Summer | |
| Clyde Abrahams | South Africa | Field hockey | 2008 Summer | |
| Glen Abrahams | Costa Rica | Athletics | 1984 Summer | |
| Guy Abrahams | Panama | 1976 Summer | |
| Harold Abrahams | Great Britain | 1920 Summer, 1924 Summer | |
| Rusten Abrahams | South Africa | Field hockey | 2020 Summer | |
| Sidney Abrahams | Great Britain | Athletics | 1912 Summer | |
| Isak Abrahamsen | Norway | Artistic gymnastics | 1912 Summer | |
| Knut Leo Abrahamsen | Nordic combined | 1988 Winter | |
| Trond Abrahamsen | Ice hockey | 1980 Winter, 1984 Winter | |
| Donald Abrahamson | United States | Weightlifting | 1984 Summer | |
| Richard Abrahamson | Handball | 1972 Summer, 1976 Summer | |
| Carl Abrahamsson | Sweden | Ice hockey | 1928 Winter | |
| Christer Abrahamsson | 1972 Winter | |
| Erik Abrahamsson | Athletics | 1920 Summer | |
| Göran Abrahamsson | Fencing | 1960 Summer, 1964 Summer | |
| Thommy Abrahamsson | Ice hockey | 1972 Winter | |
| Benik Abrahamyan | Georgia | Athletics | 2016 Summer | |
| Fletcher Abram | United States | Handball | 1972 Summer | |
| Iason Abramashvili | Georgia | Alpine skiing | 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter | |
| Alena Abramchuk | Belarus | Athletics | 2016 Summer | |
| Evgeny Abramenko | Biathlon | 2010 Winter, 2014 Winter | |
| Oleksandr Abramenko | Ukraine | Freestyle skiing | 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Lahcen Abrami | Morocco | Football | 1992 Summer | |
| Ekaterina Abramia | Georgia | Rhythmic gymnastics | 1996 Summer | |
| Jernej Abramič | Slovenia | Canoe slalom | 1996 Summer | |
| Levan Abramishvili | Georgia | Alpine skiing | 1994 Winter, 1998 Winter | |
| Andrey Abramov | Russia | Archery | 2008 Summer | |
| Andrey Abramov | Soviet Union | Boxing | 1960 Summer | |
| Erik Abramov [ Wikidata ] | Germany | Judo | 2024 Summer | |
| Nikolay Abramov | Soviet Union | Athletics | 1964 Summer | |
| Pavel Abramov | Russia | Volleyball | 2004 Summer | |
| Sergei Abramov | Ice hockey | 1994 Winter | |
| Valeriy Abramov | Soviet Union | Athletics | 1980 Summer | |
| Inna Abramova | Swimming | 1988 Summer | |
| Nelli Abramova | Volleyball | 1964 Summer | |
| Yekaterina Abramova | Russia | Speed skating | 2006 Winter, 2010 Winter | |
| Alen Abramović | Croatia | Cross country skiing | 2006 Winter | |
| Dmitry Abramovitch | Russia | Bobsleigh | 2010 Winter | |
| Aliyah Abrams | Guyana | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Colin Abrams | Track cycling | 1988 Summer | |
| Jasmine Abrams | Athletics | 2020 Summer | |
| John Abrams | New Zealand | Field hockey | 1956 Summer, 1960 Summer | |
| Nili Abramski | Israel | Athletics | 2004 Summer | |
| António Abrantes | Portugal | 1988 Summer, 1992 Summer, 1996 Summer | |
| Arnaldo Abrantes | 1988 Summer | |
| Arnaldo Abrantes | 2008 Summer, 2012 Summer | |
| David Abrard | France | Swimming | 1996 Summer | |
| Tsvetelina Abrasheva | Bulgaria | Figure skating | 1994 Winter | |
| Amir Abrashi | Switzerland | Football | 2012 Summer | |
| Thomas Abratis | Germany | Nordic combined | 1994 Winter | |
| Paweł Abratkiewicz | Poland | Speed skating | 1992 Winter, 1998 Winter, 2002 Winter | |
| Diogo Abreu | Portugal | Trampolining | 2016 Summer, 2020 Summer | |
| Eloy Abreu | Cuba | Wrestling | 1976 Summer | |
| Fernando de Abreu | Brazil | Rowing | 1932 Summer | |
| Fernando de Abreu | Swimming | 1960 Summer | |
| Glaucélio Abreu | Boxing | 2004 Summer | |
| Isabela Abreu [ Wikidata ] | Modern pentathlon | 2024 Summer | |
| João de Abreu [ Wikidata ] | Portugal | Fencing | 1968 Summer | |
| José Filipe Abreu | Artistic gymnastics | 1968 Summer | |
| Julio Abreu | Paraguay | Swimming | 1976 Summer | |
| Morais Abreu | Angola | Beach volleyball | 2008 Summer | |
| Paulo Abreu | Brazil | Water polo | 1984 Summer | |
| Pedro Abreu | Cuba | Basketball | 1980 Summer | |
| Rubén Abreu | Venezuela | Road cycling | 1996 Summer | |
| Rui Abreu | Portugal | Swimming | 1976 Summer, 1980 Summer | |
| Franck Abrial | France | Wrestling | 1988 Summer | |
| Erika Abril | Colombia | Athletics | 2012 Summer, 2016 Summer | |
| Laura Abril | Cycling mountain bike | 2012 Summer | |
| Álex Abrines | Spain | Basketball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Richard Åbrink | Sweden | Athletics | 1912 Summer | |
| Bourhan Abro | Djibouti | Swimming | 2016 Summer | |
| Kirill Abrosimov | Russian Olympic Committee | Marathon swimming | 2020 Summer | |
| Anastasia Abrosimova | Russia | Triathlon | 2016 Summer | |
| Svetlana Abrosimova | Basketball | 2000 Summer, 2008 Summer | |
| Elisabeta Abrudeanu | Romania | Artistic gymnastics | 1952 Summer | |
| Nick Abruzzese | United States | Ice hockey | 2022 Winter | |
| Saypulla Absaidov | Soviet Union | Wrestling | 1980 Summer | |
| Julien Absalon | France | Cycling mountain bike | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Ayele Abshero | Ethiopia | Athletics | 2012 Summer | |
| Brian Abshire | United States | 1988 Summer | |
| Tobias Abstreiter | Germany | Ice hockey | 2002 Winter | |
| Alexander Abt | Russia | Figure skating | 2002 Winter | |
| Gudrun Abt | West Germany | Athletics | 1988 Summer | |
| Najmeh Abtin | Iran | Archery | 2008 Summer | |
| Rama Abu Al-Rub | Jordan | Taekwondo | 2024 Summer | |
| Rauf Abu Al-Seoud | Egypt | Diving | 1936 Summer, 1948 Summer | |
| Ahmad Abu Al-Soud | Jordan | Artistic gymnastics | 2024 Summer | |
| Methkal Abu Drais | Athletics | 2012 Summer, 2016 Summer | |
| Omar Abu Fares | Swimming | 2000 Summer, 2004 Summer | |
| Abdul-Wahab Abu Al-Hail | Iraq | Football | 2004 Summer | |
| Lailin Abu Hassan | Malaysia | Field hockey | 1992 Summer, 1996 Summer | |
| Majed Abu Maraheel | Palestine | Athletics | 1996 Summer | |
| Asma Abu Rabee | Jordan | Shooting | 2020 Summer | |
| Maher Abu Rmeileh | Palestine | Judo | 2012 Summer | |
| Wesam Abu Rmilah | 2020 Summer | |
| Joshua Abuaku | Germany | Athletics | 2020 Summer, 2024 Summer | |
| Yousef Abubaker [ Wikidata ] | Libya | Swimming | 2024 Summer | |
| Bektas Abubakirov | Kazakhstan | Boxing | 1996 Summer | |
| Nagmeldin Ali Abubakr | Sudan | Athletics | 2004 Summer, 2008 Summer | |
| Sanna Abubkheet | Palestine | 2004 Summer | |
| Juma Abudu | Kenya | Weightlifting | 1988 Summer | |
| Folashade Abugan | Nigeria | Athletics | 2008 Summer | |
| Fernando Abugattás | Peru | 1968 Summer | |
| Roberto Abugattás | 1964 Summer, 1968 Summer | |
| Hamza Abu-Ghalia | Libya | Weightlifting | 2004 Summer | |
| Ahmad Abughaush | Jordan | Taekwondo | 2016 Summer | |
| Tala Abujbara | Qatar | Rowing | 2020 Summer | |
| Fartun Abukar Omar | Somalia | Athletics | 2004 Summer | |
| Ginko Abukawa-Chiba | Japan | Artistic gymnastics | 1960 Summer, 1964 Summer | |
| Mohammed Abukhousa | Palestine | Athletics | 2016 Summer | |
| Mohammad Abulibdeh | Jordan | Taekwondo | 2012 Summer | |
| Abudureheman Abulikemu | China | Boxing | 2000 Summer | |
| Kariman Abuljadayel | Saudi Arabia | Athletics | 2016 Summer | |
| José Manuel Abundis | Mexico | Football | 1996 Summer | |
| Mai Magdy Elsayed Abuqarn [ Wikidata ] | Egypt | Shooting | 2024 Summer | |
| Abdulla Abuqrais | Kuwait | Diving | 1984 Summer | |
| Shigeru Aburaya | Japan | Athletics | 2004 Summer | |
| Cristóbal Aburto | Mexico | Judo | 2004 Summer | |
| Wasim Abusal | Palestine | Boxing | 2024 Summer | |
| Aleksandr Abushakhmetov | Soviet Union | Fencing | 1976 Summer, 1980 Summer | |
| Saeed Abusharib [ Wikidata ] | Qatar | Shooting | 2024 Summer | |
| Magomedgasan Abushev | Soviet Union | Wrestling | 1980 Summer | |
| Dunya Abutaleb | Saudi Arabia | Taekwondo | 2024 Summer | |
| Kanat Abutalipov | Kazakhstan | Boxing | 2008 Summer, 2012 Summer | |
| Anas Abu Yousuf | Qatar | Swimming | 2004 Summer | |
| Ali Abuzamia | Jordan | Fencing | 1988 Summer | |
| Abiba Abuzhakynova | Kazakhstan | Judo | 2024 Summer | |
| Ahmed Abuzriba | Libya | Weightlifting | 2024 Summer | |
| Irina Abysova | Russia | Triathlon | 2008 Summer, 2012 Summer | |
| Marlon Acácio | South Africa, Mozambique | Judo | 2008 Summer, 2016 Summer | |
| Sırrı Acar | Turkey | Wrestling | 1968 Summer | |
| Doğan Acarbay | Athletics | 1948 Summer, 1952 Summer | |
| Alain Acart | France | Canoe sprint | 1972 Summer, 1976 Summer | |
| Deborah Acason | Australia | Weightlifting | 2004 Summer, 2008 Summer | |
| Andreea Acatrinei | Romania | Artistic gymnastics | 2008 Summer | |
| Jacques Accambray | France | Athletics | 1972 Summer, 1976 Summer | |
| William Accambray | Handball | 2012 Summer | |
| Ilaria Accame | Italy | Athletics | 2024 Summer | |
| Anna Accensi | Spain | Rowing | 1996 Summer | |
| Ezio Acchini | Italy | 1948 Summer | |
| Mario Acchini | 1948 Summer | |
| Martina Accola | Switzerland | Alpine skiing | 1994 Winter, 1998 Winter | |
| Paul Accola | 1988 Winter, 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter | |
| Alfredo Accorsi | Italy | Artistic gymnastics | 1908 Summer | |
| Enrique Accorsi | Chile | Fencing | 1948 Summer | |
| Eusebio Acea | Cuba | Rowing | 2000 Summer | |
| Raidel Acea | Athletics | 2012 Summer | |
| Carmen Acedo | Spain | Rhythmic gymnastics | 1992 Summer | |
| Domingo Acedo | Football | 1920 Summer | |
| José Aceituno | Chile | Athletics | 1960 Summer | |
| Ervin Acel | United States | Fencing | 1928 Summer | |
| Marco Acerbi | Italy | Athletics | 1972 Summer | |
| Claudia Acerenza | Uruguay | 1988 Summer | |
| Domenico Acerenza | Italy | Swimming, Marathon swimming | 2020 Summer, 2024 Summer | |
| Alperen Acet | Turkey | Athletics | 2024 Summer | |
| Vladimir Aceti | Italy | 2020 Summer, 2024 Summer | |
| Abraham Acevedo | Paraguay | Judo | 2012 Summer | |
| Aníbal Santiago Acevedo | Puerto Rico | Boxing | 1992 Summer | |
| Elmer Acevedo | El Salvador | Football | 1968 Summer | |
| Eyne Acevedo | Colombia | Weightlifting | 1992 Summer | |
| Fabio Acevedo | Road cycling | 1972 Summer | |
| Fernando Acevedo | Peru | Athletics | 1968 Summer, 1972 Summer | |
| Javier Acevedo | Canada | Swimming | 2016 Summer, 2020 Summer, 2024 Summer | |
| José Acevedo | Venezuela | Athletics | 2008 Summer | |
| Nicole Acevedo | Colombia | Rugby sevens | 2016 Summer | |
| Sharon Acevedo | 2016 Summer | |
| Daniel Aceves | Mexico | Wrestling | 1984 Summer | |
| Roberto Aceves | 1984 Summer | |
| David Acfield | Great Britain | Fencing | 1968 Summer, 1972 Summer | |
| Pablo Acha | Spain | Archery | 2024 Summer | |
| Jaouad Achab | Belgium | Taekwondo | 2016 Summer, 2020 Summer | |
| Mustapha Achab | Morocco | Football | 1992 Summer | |
| Karem Achach | Mexico | Artistic swimming | 2016 Summer | |
| Emilio Achacoso | Philippines | Basketball | 1960 Summer | |
| Loreto Achaerandio | Spain | Rhythmic gymnastics | 2012 Summer | |
| Maryam Achak | Iran | Fencing | 1976 Summer | |
| Kieron Achara | Great Britain | Basketball | 2012 Summer | |
| Gilbert Achard-Picard | France | Bobsleigh | 1948 Winter | |
| Aziz Acharki | Germany | Taekwondo | 2000 Summer | |
| Batmönkhiin Achbadrakh | Mongolia | Cross country skiing | 2018 Winter, 2022 Winter | |
| Ragnar Ache | Germany | Football | 2020 Summer | |
| Ben Acheampong | Ghana | 1964 Summer | |
| Gemma Acheampong | Athletics | 2016 Summer | |
| Alfred Achermann | Switzerland | Road cycling | 1984 Summer | |
| Wilson Achia | Uganda | Athletics | 1984 Summer | |
| Oscar Ouma Achieng | Kenya | Rugby sevens | 2016 Summer | |
| Abdelhak Achik | Morocco | Boxing | 1988 Summer | |
| Mohammed Achik | 1988 Summer, 1992 Summer, 1996 Summer | |
| Larry Achike | Great Britain | Athletics | 2000 Summer, 2008 Summer | |
| Gaston Achille | France | Fencing | 1900 Summer | |
| Georges Achille-Fould | Art competitions | 1924 Summer | |
| Georgios Achilleos | Cyprus | Shooting | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2020 Summer | |
| Jack Achilles | Netherlands | 1984 Summer | |
| Adkhamjon Achilov | Uzbekistan | Wrestling | 1996 Summer, 2000 Summer | |
| Ioan Valeriu Achiriloaie | Romania | Alpine skiing | 2014 Winter | |
| Precious Achiuwa | Nigeria | Basketball | 2020 Summer | |
| Jihad El-Achkar | Lebanon | Judo | 1984 Summer | |
| Rita Achkina | Soviet Union | Cross country skiing | 1964 Winter, 1968 Winter | |
| Janet Achola | Uganda | Athletics | 2012 Summer | |
| Julius Achon | 1996 Summer, 2000 Summer | |
| Natalie Achonwa | Canada | Basketball | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Dallal Merwa Achour | Algeria | Volleyball | 2012 Summer | |
| Khaled Achour | Tunisia | Handball | 1976 Summer | |
| Haykel Achouri | Wrestling | 2008 Summer, 2012 Summer, 2020 Summer | |
| Said Achtar | Syria | Judo | 1980 Summer | |
| Roger Achten | Belgium | Fencing | 1956 Summer, 1960 Summer | |
| Chantal Achterberg | Netherlands | Rowing | 2012 Summer, 2016 Summer | |
| Carlijn Achtereekte | Speed skating | 2018 Winter, 2022 Winter | |
| Assumpta Achuo-Bei | Cameroon | Athletics | 1988 Summer | |
| James Achurch | Australia | 1956 Summer | |
| Gabriel Achy Assi | Ivory Coast | Boxing | 1964 Summer | |
| Oliver Acii | Uganda | Athletics | 1988 Summer | |
| Arslanbek Açilow | Turkmenistan | Boxing | 2016 Summer | |
| Nikola Aćin | Serbia | Swimming | 2020 Summer, 2024 Summer | |
| Ricardo Acioly | Brazil | Tennis | 1988 Summer | |
| Fausto Acke | Sweden | Artistic gymnastics | 1920 Summer | |
| Charles Acke | Belgium | Fencing | 1924 Summer | |
| Paul Ackerley | New Zealand | Field hockey | 1976 Summer | |
| Charles Ackerly | United States | Wrestling | 1920 Summer | |
| Nate Ackerman | Great Britain | 2004 Summer | |
| Christina Ackermann | Germany | Alpine skiing | 2010 Winter, 2014 Winter, 2018 Winter | |
| Georg Ackermann | Athletics | 1996 Summer | |
| Ronny Ackermann | Nordic combined | 1998 Winter, 2002 Winter, 2006 Winter | |
| Rosemarie Ackermann | East Germany | Athletics | 1972 Summer, 1976 Summer, 1980 Summer | |
| Simone Ackermann | South Africa | Triathlon | 2020 Summer | |
| Marjan Ackermans-Thomas | Netherlands | Athletics | 1968 Summer | |
| Désiré Acket | Belgium | Art competitions | 1932 Summer | |
| Donat Acklin | Switzerland | Bobsleigh | 1988 Winter, 1992 Winter, 1994 Winter | |
| Guido Acklin | 1994 Winter, 1998 Winter, 2002 Winter | |
| Urban Acman | Slovenia | Athletics | 2000 Summer | |
| Valentina Acosta Giraldo | Colombia | Archery | 2020 Summer | |
| Martín Acosta y Lara | Uruguay | Basketball | 1948 Summer, 1952 Summer | |
| Alberto Acosta | Mexico | Diving | 1992 Summer, 1996 Summer | |
| Arlettys Acosta | Cuba | Taekwondo | 2024 Summer | |
| Asunción Acosta | Athletics | 1972 Summer | |
| Briseida Acosta | Mexico | Taekwondo | 2020 Summer | |
| Bryan Acosta | Honduras | Football | 2016 Summer | |
| Carlos Acosta | Mexico | Shooting | 1936 Summer | |
| Héctor Acosta | Argentina | Track cycling, Road cycling | 1960 Summer, 1964 Summer | |
| José Eugenio Acosta | Equestrian eventing | 1968 Summer, 1972 Summer | |
| Juan Acosta | Chile | Athletics | 1936 Summer | |
| Julio Acosta | Weightlifting | 2016 Summer | |
| Lautaro Acosta | Argentina | Football | 2008 Summer | |
| Leopoldo Acosta | Ecuador | Athletics | 1984 Summer | |
| Luis Angel Acosta | Mexico | Swimming | 1968 Summer | |
| Luz Acosta | Weightlifting | 2008 Summer, 2012 Summer | |
| Marcelo Acosta | El Salvador | Swimming | 2016 Summer, 2020 Summer | |
| María Acosta | Venezuela | Wrestling | 2016 Summer | |
| Mariano Acosta | Argentina | Athletics | 1952 Summer | |
| Osmay Acosta | Cuba | Boxing | 2008 Summer | |
| Pedro Acosta | Venezuela | Football | 1980 Summer | |
| Roslandy Acosta | Volleyball | 2008 Summer | |
| Tanya Acosta | Argentina | 2016 Summer | |
| Yasmani Acosta | Chile | Wrestling | 2020 Summer, 2024 Summer | |
| George Acquaah | Ghana | Athletics | 1952 Summer | |
| Robert Acquafresca | Italy | Football | 2008 Summer | |
| Edward Acquah | Ghana | 1964 Summer | |
| Oliver Acquah | 1968 Summer, 1972 Summer | |
| Sam Acquah | 1964 Summer | |
| Safiatou Acquaviva | Guinea | Athletics | 2024 Summer | |
| Ilona Ács | Hungary | Swimming | 1936 Summer | |
| Otto Mønsted Acthon | Denmark | Equestrian jumping, Equestrian eventing | 1948 Summer, 1952 Summer | |
| Ben Acton | Australia | Ice hockey | 1960 Winter | |
| Brigitte Acton | Canada | Alpine skiing | 2006 Winter, 2010 Winter | |
| Amy Acuff | United States | Athletics | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Angel Acuña Lizaña | Mexico | Basketball | 1948 Summer | |
| Crox Acuña | Venezuela | Swimming | 2008 Summer, 2012 Summer | |
| Jorge Acuña | Uruguay | Boxing | 1972 Summer | |
| Ricardo Acuña | Mexico | Judo | 1996 Summer | |
| Roberto Acuña | Argentina | Basketball | 2016 Summer | |
| Yenny Acuña | Chile | Football | 2020 Summer | |
| Kazimierz Adach | Poland | Boxing | 1980 Summer | |
| Goro Adachi | Japan | Ski jumping | 1932 Winter, 1936 Winter | |
| Kazuya Adachi | Canoe slalom | 2020 Summer | |
| Kiyoshi Adachi | Athletics | 1936 Summer | |
| Mariko Adachi | Triathlon | 2012 Summer | |
| Miho Adachi | Canoe sprint | 2004 Summer | |
| Seiya Adachi | Water polo | 2016 Summer, 2020 Summer, 2024 Summer | |
| Takumi Adachi | Wrestling | 1992 Summer | |
| Yumi Adachi | Artistic swimming | 2012 Summer | |
| Yurie Adachi | Ice hockey | 2014 Winter, 2018 Winter | |
| Craig Adair | New Zealand | Track cycling | 1984 Summer | |
| Ali Enver Adakan | Turkey | Sailing | 2000 Summer, 2004 Summer | |
| Ahenaer Adake | China | Speed skating | 2022 Winter | |
| Þorbergur Aðalsteinsson | Iceland | Handball | 1984 Summer | |
| Yousuf Adam | Qatar | Football | 1992 Summer | |
| Adam [ Wikidata ] | France | Fencing | 1900 Summer | |
| A. Adam [ Wikidata ] | Swimming | 1900 Summer | |
| Adriana Adam | Romania | Rowing | 2020 Summer, 2024 Summer | |
| Ahmed Adam | Sudan | Swimming | 2008 Summer | |
| Amal Adam | Egypt | Archery | 2020 Summer | |
| Constantin Adam | Romania | Rowing | 2016 Summer, 2020 Summer, 2024 Summer | |
| Gael Adam | Mauritius | Swimming | 2008 Summer | |
| Gordon Adam | United States | Rowing | 1936 Summer | |
| Herman Adam | Mexico | Athletics | 1988 Summer | |
| Ibadulla Adam | Maldives | 2024 Summer | |
| Idrissa Adam | Cameroon | 2012 Summer | |
| Jean-Paul Adam | Seychelles | Swimming | 1992 Summer | |
| Jiří Adam | Czechoslovakia | Modern pentathlon, Fencing | 1976 Summer, 1980 Summer | |
| Johannes Adam | Germany | Fencing | 1908 Summer, 1912 Summer | |
| John Adam | Great Britain | Sailing | 1908 Summer | |
| Joseph Adam | Seychelles | Athletics | 1992 Summer | |
| Kassim Napa Adam | Uganda | Boxing | 2000 Summer | |
| Leonie Adam | Germany | Trampolining | 2016 Summer | |
| Marcus Adam | Great Britain | Athletics, Bobsleigh | 1992 Summer, 2002 Winter | |
| Marianne Adam | East Germany | Athletics | 1972 Summer, 1976 Summer | |
| Mike Adam | Canada | Curling | 2006 Winter | |
| Moustafa Adam | Egypt | Modern pentathlon | 1988 Summer, 1992 Summer | |
| Nic Adam | Luxembourg | Artistic gymnastics | 1912 Summer | |
| Otto Adam | Germany | Fencing | 1936 Summer | |
| Paul Adam | France | Art competitions | 1912 Summer | |
| Pierre Adam | Track cycling | 1948 Summer | |
| Sándor Ádám | Hungary | Water polo | 1912 Summer | |
| Shuaib Adam | Kenya | Shooting | 1984 Summer, 1988 Summer, 1992 Summer | |
| Tony Adam | Germany | Diving | 2004 Summer | |
| Osumanu Adama | Ghana | Boxing | 2000 Summer | |
| Samba Adama | Mauritania | Wrestling | 1988 Summer | |
| Stefan Adamczak | Poland | Athletics | 1924 Summer | |
| Matthias Adamczewski | West Germany | Sailing | 1988 Summer | |
| Dariusz Adamczuk | Poland | Football | 1992 Summer | |
| Adam Adamczyk | Judo | 1972 Summer, 1976 Summer | |
| Edward Adamczyk | Athletics | 1948 Summer | |
| Eva Adamczyková | Czech Republic | Snowboarding | 2014 Winter, 2018 Winter | |
| Luboš Adamec | Czechoslovakia | Shooting | 1988 Summer, 1992 Summer | |
| Petr Adamec | Swimming | 1980 Summer | |
| Klaudia Adamek | Poland | Athletics | 2020 Summer | |
| María Teresa Adames | Mexico | Diving | 1960 Summer | |
| Luigi Adami | Italy | Shooting | 1948 Summer | |
| Pirouz Adamiat | Iran | Fencing | 1972 Summer | |
| Jiřína Adamičková-Pelcová | Czechoslovakia, Czech Republic | Biathlon | 1992 Winter, 1994 Winter, 1998 Winter | |
| Panagiotis Adamidis | Greece | Swimming | 1996 Summer | |
| Janusz Adamiec | Poland | Ice hockey | 1984 Winter, 1988 Winter, 1992 Winter | |
| Tomasz Adamiec | Judo | 2008 Summer, 2012 Summer | |
| Zoltán Adamik | Hungary | Athletics | 1952 Summer | |
| Patrycja Adamkiewicz | Poland | Taekwondo | 2020 Summer | |
| Ariadni Adamopoulou | Greece | Athletics | 2024 Summer | |
| Nafissatou Moussa Adamou [ Wikidata ] | Niger | Swimming | 2012 Summer | |
| Tatyana Adamovich | United States | Fencing | 1972 Summer | |
| Tadeusz Adamowski | Poland | Ice hockey | 1928 Winter | |
| Anne Adams | Great Britain | Swimming | 1976 Summer | |
| Antoine Adams | Saint Kitts and Nevis | Athletics | 2012 Summer, 2016 Summer | |
| April Adams | Australia | Diving | 1992 Summer | |
| Bart Adams | United States | Golf | 1904 Summer | |
| Ben Adams | Athletics | 1912 Summer | |
| Bob Adams | Canada | 1952 Summer | |
| Brian Adams | Great Britain | 1976 Summer | |
| Bridget Adams | Figure skating | 1948 Winter | |
| Cammile Adams | United States | Swimming | 2012 Summer, 2016 Summer | |
| David Adams | South Africa | Tennis | 2000 Summer | |
| Edgar Adams | United States | Swimming | 1904 Summer | |
| Edward Adams | Great Britain | Boxing | 1908 Summer | |
| Francis Adams | Trinidad and Tobago | Athletics | 1976 Summer, 1980 Summer | |
| Frederick Adams | Great Britain | Boxing | 1920 Summer | |
| Gerry Adams | Australia | Fencing | 2000 Summer | |
| Harry Adams | United States | Shooting | 1912 Summer, 1920 Summer | |
| John Adams | Dominican Republic | Judo | 1984 Summer | |
| Judi Adams | United States | Archery | 1996 Summer | |
| Keith Adams | Canada | Weightlifting | 1972 Summer | |
| Lennox Adams | Saint Vincent and the Grenadines | Athletics | 1988 Summer | |
| Liam Adams | Australia | 2016 Summer, 2020 Summer, 2024 Summer | |
| Luke Adams | 2004 Summer, 2008 Summer, 2012 Summer | |
| Lynda Adams | Canada | Diving | 1936 Summer | |
| Lyukman Adams | Russia | Athletics | 2012 Summer | |
| Mareike Adams | Germany | Rowing | 2016 Summer | |
| Maureen Adams | Australia | Archery | 1976 Summer | |
| Morgan Adams | United States | Sailing | 1936 Summer | |
| Neil Adams | Great Britain | Judo | 1980 Summer, 1984 Summer, 1988 Summer | |
| Nelson Adams | Puerto Rico | Boxing | 1988 Summer | |
| Nicola Adams | Great Britain | 2012 Summer, 2016 Summer | |
| Odalys Adams | Cuba | Athletics | 1992 Summer | |
| Paul Adams | Australia | Shooting | 2016 Summer, 2020 Summer | |
| Phillip Adams | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Platt Adams | United States | Athletics | 1908 Summer, 1912 Summer | |
| Rachael Adams | Volleyball | 2016 Summer | |
| Ralph Adams | Canada | Athletics | 1928 Summer | |
| Robert Adams | Rowing | 1960 Summer | |
| Taeyanna Adams | Federated States of Micronesia | Swimming | 2020 Summer | |
| Valerie Adams | New Zealand | Athletics | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Walter Adams | Great Britain | Wrestling | 1908 Summer | |
| Walter Adams | West Germany | Athletics | 1968 Summer, 1972 Summer | |
| Wayman Elbridge Adams | United States | Art competitions | 1932 Summer | |
| Willie Adams | Baseball | 1992 Summer | |
| Morten Adamsen | Norway | Rowing | 2004 Summer | |
| Antoni Adamski | Poland | Field hockey | 1952 Summer | |
| Filip Adamski | Germany | Rowing | 2008 Summer, 2012 Summer | |
| Herbert Adamski | 1936 Summer | |
| Jerzy Adamski | Poland | Boxing | 1960 Summer | |
| Tadeusz Adamski | Field hockey | 1952 Summer | |
| Anders Adamson | Sweden | Road cycling | 1980 Summer | |
| Derick Adamson | Jamaica | Athletics | 1984 Summer, 1988 Summer | |
| Nick Adamson | United States | Sailing | 1996 Summer | |
| Owe Adamson | Sweden | Road cycling | 1960 Summer | |
| Bride Adams-Ray | Athletics | 1928 Summer | |
| Gösta Adamsson | Rowing | 1952 Summer | |
| Charles Adamu | Ghana | Boxing | 2000 Summer | |
| Mamudu Adamu | Nigeria | Judo | 1988 Summer | |
| Bartłomiej Adamus | Poland | Weightlifting | 2020 Summer | |
| Dariusz Adamus | Athletics | 1980 Summer | |
| José Carlos Adán | Spain | 1992 Summer | |
| Nenita Adan | Philippines | 1988 Summer | |
| Aboukar Hassan Adani [ Wikidata ] | Somalia | 1988 Summer, 1996 Summer | |
| Yasemin Adar Yiğit | Turkey | Wrestling | 2016 Summer, 2020 Summer, 2024 Summer | |
| Juan Adarraga | Spain | Athletics | 1948 Summer | |
| Orhan Adaş | Turkey | Fencing | 1936 Summer | |
| Rigina Adashbaeva [ Wikidata ] | Uzbekistan | Weightlifting | 2024 Summer | |
| Issa Al-Adawi | Oman | Swimming | 2020 Summer, 2024 Summer | |
| Chris Adcock | Great Britain | Badminton | 2012 Summer, 2016 Summer | |
| Frances Adcock | Australia | Swimming | 2004 Summer | |
| Gabby Adcock | Great Britain | Badminton | 2016 Summer | |
| Liam Adcock | Australia | Athletics | 2024 Summer | |
| Bill Adcocks | Great Britain | 1968 Summer | |
| Alfréd von Adda | Hungary | Equestrian eventing | 1928 Summer | |
| Berkane Lakhdar Adda | Algeria | Judo | 1980 Summer | |
| Elie Adda | Egypt | Fencing | 1928 Summer | |
| Mehdi Addadi | Algeria | Swimming | 2000 Summer | |
| Edith Addams | Belgium | Fencing | 1928 Summer | |
| Jenny Addams | 1928 Summer, 1932 Summer, 1936 Summer, 1948 Summer | |
| Jean Renaud Adde | France | Equestrian eventing | 2008 Summer | |
| Yannick Adde | Sailing | 1992 Summer | |
| Hamida Addèche | Athletics | 1960 Summer | |
| Baptiste Addis | Archery | 2024 Summer | |
| Corran Addison | South Africa | Canoe slalom | 1992 Summer | |
| Roy Addison | Great Britain | Boxing | 1960 Summer | |
| Joe Addo | Ghana | Football | 1996 Summer | |
| Simon Addo | 1992 Summer, 1996 Summer | |
| Eugene Addor | Switzerland | Shooting | 1920 Summer | |
| Bob Addy | Great Britain | Road cycling | 1964 Summer | |
| Ebenezer Addy | Ghana | Athletics | 1964 Summer | |
| James Addy | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| Jangy Addy | Liberia | 2008 Summer, 2012 Summer | |
| Mercy Addy | Ghana | 1984 Summer, 1988 Summer, 1996 Summer | |
| Winifred Addy | Table tennis | 1996 Summer | |
| Harold Ade | United States | Track cycling | 1932 Summer | |
| Simidele Adeagbo | Nigeria | Skeleton | 2018 Winter | |
| Bam Adebayo | United States | Basketball | 2020 Summer, 2024 Summer | |
| Peter Adeberg | East Germany, Germany | Speed skating | 1988 Winter, 1992 Winter, 1994 Winter, 1998 Winter | |
| Ulrike Adeberg | Germany | 1994 Winter | |
| James Adede | Kenya | Weightlifting | 2016 Summer | |
| Adegboyega Folaranmi Adedoyin | Great Britain | Athletics | 1948 Summer | |
| Olubayo Adefemi | Nigeria | Football | 2008 Summer | |
| Lawrence Adegbeingbe | Athletics | 1984 Summer | |
| Steve Adegbite | 1996 Summer | |
| Adewale Adegbusi | Boxing | 1988 Summer | |
| Enoch Adegoke | Athletics | 2020 Summer | |
| Kemi Adekoya | Bahrain | 2016 Summer | |
| Odunayo Adekuoroye | Nigeria | Wrestling | 2016 Summer, 2020 Summer, 2024 Summer | |
| Carolyn Adel | Suriname | Swimming | 1996 Summer, 2000 Summer | |
| Gun Ädel | Sweden | Cross country skiing | 1964 Winter | |
| Ibrahim Adel | Egypt | Football | 2020 Summer, 2024 Summer | |
| Alberto Adela | Philippines | Boxing | 1956 Summer | |
| Peter Adelaar | Netherlands | Judo | 1980 Summer | |
| Irfan Adelbi | Jordan | Shooting | 1984 Summer | |
| Rhasidat Adeleke | Ireland | Athletics | 2024 Summer | |
| Dele Adeleye | Nigeria | Football | 2008 Summer | |
| André Adelheim | France | Athletics | 1928 Summer, 1932 Summer | |
| Danny Adeline | Seychelles | Sailing | 1992 Summer | |
| Antoine Adelisse | France | Freestyle skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Beatrice Adelizzi | Italy | Artistic swimming | 2008 Summer | |
| Marcel Adelon | France | Shooting | 1924 Summer | |
| Lambert Adelot | Belgium | Field hockey | 1928 Summer, 1936 Summer | |
| Biko Adema | Kenya | Rugby sevens | 2016 Summer | |
| Joost Adema | Netherlands | Rowing | 1984 Summer | |
| Ademir | Brazil | Football | 1984 Summer, 1988 Summer | |
| Hoche Yaya Aden | Djibouti | Athletics | 1988 Summer | |
| Ibrahim Mohamed Aden | Somalia | 1996 Summer, 2000 Summer | |
| Jama Awil Aden | 1972 Summer | |
| Jama Aden | 1984 Summer, 1988 Summer | |
| Olapade Adeniken | Nigeria | 1988 Summer, 1992 Summer, 1996 Summer | |
| Aminat Adeniyi | Wrestling | 2016 Summer, 2020 Summer | |
| Esau Adenji | Cameroon | Athletics | 1968 Summer, 1972 Summer | |
| Margaret Adeoye | Great Britain | 2012 Summer | |
| Alfred Ader | Poland | Fencing | 1924 Summer | |
| Hans Aderhold | Germany | Diving | 1952 Summer | |
| Nyakisi Adero | Uganda | Athletics | 2016 Summer | |
| Ademola Adeshina | Nigeria | Football | 1988 Summer | |
| Temitope Adeshina | Athletics | 2024 Summer | |
| Adésio | Brazil | Football | 1952 Summer | |
| Dorcas Ajoke Adesokan | Nigeria | Badminton | 2020 Summer | |
| Adeoye Adetunji | Boxing | 1980 Summer | |
| Adevaldo | Brazil | Football | 1964 Summer | |
| Iziaq Adeyanju | Nigeria | Athletics | 1984 Summer, 1988 Summer | |
| Adebola Adeyeye | Basketball | 2024 Summer | |
| Cary Adgate | United States | Alpine skiing | 1976 Winter, 1980 Winter | |
| Grace Adhiambo | Kenya | Rugby sevens | 2020 Summer | |
| Kamal Bahadur Adhikari | Nepal | Weightlifting | 2008 Summer | |
| Saeed Al-Adhreai | Yemen | Athletics | 2004 Summer | |
| Sailom Adi | Thailand | Boxing | 2008 Summer, 2012 Summer, 2016 Summer | |
| David Adiele | Nigeria | Football | 1980 Summer | |
| Paul Adiga | Uganda | Field hockey | 1972 Summer | |
| Onyema Adigida | Netherlands | Athletics | 2024 Summer | |
| Seun Adigun | Nigeria | Athletics, Bobsleigh | 2012 Summer, 2018 Winter | |
| Arman Adikyan | Armenia | Wrestling | 2008 Summer | |
| Mirza Adil | Sudan | Weightlifting | 1960 Summer | |
| Sangidorjiin Adilbish | Mongolia | Shooting | 1976 Summer, 1980 Summer, 1988 Summer | |
| Adel Adili | Libya | Athletics | 1996 Summer, 2000 Summer | |
| Adiljan Suleyman | China | Basketball | 1992 Summer | |
| Alina Adilkhanova | Kazakhstan | Rhythmic gymnastics | 2020 Summer | |
| Hammed Adio | Nigeria | Athletics | 1980 Summer | |
| Antonio Adipe | Uruguay | Boxing | 1936 Summer | |
| Adiq Husainie Othman | Malaysia | Road cycling | 2012 Summer | |
| Ilana Adir | Israel | Athletics | 1960 Summer | |
| Evelyn Adiru | Uganda | 1984 Summer | |
| Badathala Adisekhar | India | Weightlifting | 1992 Summer, 1996 Summer | |
| Frank Adisson | France | Canoe slalom | 1992 Summer, 1996 Summer, 2000 Summer | |
| Amarsaikhany Adiyaasüren | Mongolia | Judo | 2024 Summer | |
| Jikirum Adjaluddin | Philippines | Swimming | 1932 Summer, 1936 Summer | |
| Eloi Adjavon [ Wikidata ] | Togo | Triathlon | 2024 Summer | |
| Richard Adjei | Germany | Bobsleigh | 2010 Winter | |
| Sammi Adjei | Ghana | Football | 1992 Summer | |
| Amanda Adkins | United States | Swimming | 2000 Summer | |
| Bradley Adkins | Athletics | 2016 Summer | |
| Charles Adkins | Boxing | 1952 Summer | |
| Derrick Adkins | Athletics | 1996 Summer | |
| Robert Adlard | Great Britain | Field hockey | 1948 Summer | |
| Alan Adler | Brazil | Sailing | 1984 Summer, 1988 Summer, 1992 Summer | |
| Daniel Adler | 1984 Summer, 1988 Summer, 1992 Summer | |
| Egon Adler | Germany | Road cycling | 1960 Summer | |
| Harry Adler | Brazil | Sailing | 1964 Summer | |
| Lena Adler | Sweden | Artistic gymnastics | 1960 Summer | |
| Margarete Adler | Austria | Swimming, Diving | 1912 Summer, 1924 Summer | |
| Uwe Adler | Germany | Modern pentathlon | 1964 Summer | |
| Herman von Adlerberg | Russia | Sailing | 1912 Summer | |
| Gregor Adlercreutz | Sweden | Equestrian dressage | 1936 Summer | |
| Nils Adlercreutz | Equestrian jumping, Equestrian eventing | 1912 Summer | |
| Märtha Adlerstråhle | Tennis | 1908 Summer | |
| Jonna Adlerteg | Artistic gymnastics | 2012 Summer, 2020 Summer | |
| Erik Adlerz | Diving | 1908 Summer, 1912 Summer, 1920 Summer, 1924 Summer | |
| Märta Adlerz | 1912 Summer, 1920 Summer | |
| Hans Adlhoch | Canada | Shooting | 1976 Summer | |
| Rebecca Adlington | Great Britain | Swimming | 2008 Summer, 2012 Summer | |
| Sarah Adlington | Judo | 2020 Summer | |
| Katrin Adlkofer | West Germany, Germany | Sailing | 1988 Summer, 1996 Summer | |
| Saïd Admane | Algeria | Wrestling | 1980 Summer | |
| Jane Admans | Great Britain | Swimming | 1980 Summer | |
| Megra Admassou | Ethiopia | Road cycling | 1960 Summer | |
| Adriana Admiraal-Meijerink | Netherlands | Fencing | 1924 Summer, 1928 Summer | |
| Ali Adnan Kadhim | Iraq | Football | 2016 Summer | |
| Mustapha Adnane | Morocco | Weightlifting | 1960 Summer, 1964 Summer | |
| Gadi Ado | Uganda | Athletics | 1960 Summer | |
| Pauline Ado | France | Surfing | 2020 Summer | |
| Adogon Adogon | Ivory Coast | Canoe sprint | 1984 Summer | |
| Balázs Adolf | Hungary | 2020 Summer, 2024 Summer | |
| Christopher Adolf | Palau | Athletics | 2000 Summer | |
| Josef Adolf | Czechoslovakia | Nordic combined | 1924 Winter | |
| Ruth Adolf | Switzerland | Alpine skiing | 1964 Winter | |
| Ricardo Adolfo | Philippines | Boxing | 1948 Summer | |
| Jan Erik Adolfsen | Norway | Ice hockey | 1952 Winter | |
| Herbert Adolfsson | Sweden | Athletics | 1928 Summer | |
| Jessica Adolfsson | Ice hockey | 2022 Winter | |
| Lars Adolfsson | Judo | 1988 Summer, 1992 Summer | |
| Ronnie Adolfsson | Biathlon | 1980 Winter, 1984 Winter | |
| Sune Adolfsson | 1976 Winter | |
| Dainius Adomaitis | Lithuania | Basketball | 2000 Summer | |
| Svajūnas Adomaitis | Wrestling | 2004 Summer | |
| Daniel Adomako | Ghana | Athletics | 2000 Summer | |
| Lena Adomat | Sweden | Artistic gymnastics | 1980 Summer, 1984 Summer | |
| Aurimas Adomavičius | Lithuania | Rowing | 2016 Summer, 2020 Summer | |
| Ieva Adomavičiūtė | 2024 Summer | |
| Neil Adonis | South Africa | Baseball | 2000 Summer | |
| G. Ador [ Wikidata ] | Switzerland | Shooting | 1900 Summer | |
| István Adorján | Hungary | Road cycling | 1936 Summer | |
| János Adorján | Handball | 1972 Summer | |
| Bogs Adornado | Philippines | Basketball | 1972 Summer | |
| Jean-Luc Adorno | Monaco | Swimming | 1984 Summer | |
| Omar Adorno | Puerto Rico | Boxing | 1996 Summer | |
| Rubén Adorno | Basketball | 1964 Summer, 1968 Summer | |
| Robleh Ali Adou | Djibouti | Sailing | 1988 Summer, 1992 Summer, 1996 Summer | |
| Barthelémy Adoukonu | Benin | Boxing | 1980 Summer | |
| Koceila Adoul [ Wikidata ] | Algeria | Shooting | 2024 Summer | |
| Martin Adouna | Togo | Athletics | 1972 Summer | |
| Conrad Adriaenssens | Belgium | Shooting | 1920 Summer, 1924 Summer | |
| J. Adriaenssens | Weightlifting | 1928 Summer | |
| Adrián López | Spain | Football | 2012 Summer | |
| Nathan Adrian | United States | Swimming | 2008 Summer, 2012 Summer, 2016 Summer | |
| Adriana | Brazil | Football | 2024 Summer | |
| Bèto Adriana | Netherlands Antilles | Weightlifting, Shooting | 1960 Summer, 1972 Summer | |
| Sharnol Adriana | Netherlands | Baseball | 2000 Summer, 2004 Summer, 2008 Summer | |
| Elisângela Adriano | Brazil | Athletics | 1996 Summer, 2004 Summer, 2008 Summer | |
| Selvyana Adrian-Sofyan | Indonesia | Shooting | 1984 Summer, 1988 Summer | |
| Attila Adrovicz | Hungary | Canoe sprint | 1996 Summer | |
| Carlos Adsera | Spain | Alpine skiing | 1968 Winter | |
| Mark Adshead | Great Britain | Judo | 1988 Summer | |
| Freddy Adu | United States | Football | 2008 Summer | |
| Gilbert Ojadi Aduche | Nigeria | Weightlifting | 1988 Summer, 1992 Summer | |
| Martha Adusei | Canada | Athletics | 2000 Summer | |
| Serhiy Advena | Ukraine | Swimming | 2004 Summer, 2008 Summer | |
| Qaied Al-Adwani | Kuwait | Handball | 1996 Summer | |
| Doljingiin Adiyaatömör | Mongolia | Wrestling | 1976 Summer | |
| Viktoriya Adyeva [ Wikidata ] | Kazakhstan | Ice hockey | 2002 Winter | |
| Erkin Adylbek Uulu | Kyrgyzstan | Boxing | 2016 Summer | |
| Rustam Adzhi | Ukraine | Wrestling | 1996 Summer, 2000 Summer | |
| Olga Adzhiderskaya | Kazakhstan | Handball | 2008 Summer | |
| Urs Aeberhand | Switzerland | Bobsleigh | 2002 Winter | |
| Nadine Aeberhard | Cycling BMX racing | 2024 Summer | |
| Adolf Aebersold | Athletics | 1936 Summer | |
| Regula Aebi | 1988 Summer | |
| David Aebischer | Ice hockey | 2002 Winter, 2006 Winter | |
| Christian Aebli | Bobsleigh | 2006 Winter | |
| Yanara Aedo | Chile | Football | 2020 Summer | |
| Klaus Aeffke | Germany | Rowing | 1964 Summer | |
| Carl Aejemelaeus | Russia | Modern pentathlon | 1912 Summer | |
| Eduard Aellig | Austria | Judo | 1972 Summer | |
| Kees van Aelst | Netherlands | Water polo | 1936 Summer | |
| Joseph Aelter | Belgium | Athletics | 1912 Summer | |
| Hansjörg Aemisegger | Switzerland | Road cycling | 1976 Summer | |
| Lies Aengenendt | Netherlands | Athletics | 1928 Summer | |
| Jasper Aerents | Belgium | Swimming | 2012 Summer, 2016 Summer | |
| Luca Aerni | Switzerland | Alpine skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Violaine Aernoudts | France | Rowing | 2020 Summer | |
| Jean Aerts | Belgium | Road cycling, Track cycling | 1928 Summer | |
| Katrien Aerts | Freestyle skiing | 2014 Winter | |
| Mario Aerts | Road cycling | 2008 Summer | |
| Sara Aerts | Athletics, Bobsleigh | 2012 Summer, 2018 Winter, 2022 Winter | |
| Andreas Aeschbach | Switzerland | Track cycling | 1992 Summer | |
| Marianne Aeschbacher | France | Artistic swimming | 1992 Summer, 1996 Summer | |
| Marita Aeschbacher | Switzerland | Equestrian dressage | 1972 Summer | |
| Charles Aeschlimann | Tennis | 1924 Summer | |
| Jean-Jacques Aeschlimann | Ice hockey | 2002 Winter | |
| Peter Aeschlimann | 1972 Winter | |
| Albert Aeschmann | Weightlifting | 1924 Summer, 1928 Summer, 1936 Summer | |
| Silulu A'etonu | American Samoa | Judo | 2008 Summer | |
| Paulus af Uhr | Sweden | Athletics | 1912 Summer | |
| Vaovasa Afa Su'a | Samoa | Rugby sevens | 2024 Summer | |
| Hamed Afagh | Iran | Basketball | 2008 Summer | |
| Brian Afanador | Puerto Rico | Table tennis | 2016 Summer, 2020 Summer, 2024 Summer | |
| Nikolay Afanasyev | Russia | Athletics | 1996 Summer | |
| Valery Afanasyev | Soviet Union | Sailing | 1968 Summer | |
| Ksenia Afanasyeva | Russia | Artistic gymnastics | 2008 Summer, 2012 Summer | |
| Yelena Afanasyeva | Athletics | 1996 Summer | |
| Mustapha Afandi | Morocco | Road cycling | 1984 Summer | |
| Nour El-Afandi | Egypt | Artistic swimming | 2012 Summer | |
| Shamil Afandiyev | Azerbaijan | Wrestling | 2000 Summer | |
| Ahmad Al-Afasi | Independent Olympians | Shooting | 2016 Summer | |
| Khairulnizam Afendy | Malaysia | Sailing | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Abel Aferalign | Ethiopia | Boxing | 2004 Summer | |
| Jammal-ud-Din Affendi | Afghanistan | Field hockey | 1936 Summer | |
| Xaver Affentranger | Switzerland | Cross country skiing, Nordic combined, Ski jumping | 1924 Winter | |
| François Affolter | Football | 2012 Summer | |
| Konrad Affolter | Handball | 1980 Summer | |
| Ahmad Afghan | Iran | Wrestling | 1988 Summer | |
| Ahmed Afifi | Egypt | Volleyball | 2016 Summer | |
| Gharib Afifi | Boxing | 1948 Summer | |
| Shimaa Afifi | Taekwondo | 2000 Summer | |
| Maxim Afinogenov | Russia | Ice hockey | 2002 Winter, 2006 Winter, 2010 Winter | |
| Majid Aflaki | Iran | Taekwondo | 2000 Summer | |
| Evelina Afoa | Samoa | Swimming | 2016 Summer | |
| Olabisi Afolabi | Nigeria | Athletics | 1996 Summer, 2000 Summer | |
| Vladimir Afonin | Soviet Union | 1972 Summer | |
| Inga Afonina | Unified Team | Diving | 1992 Summer | |
| Nuno Afonso | Portugal | Football | 1996 Summer | |
| Paixão Afonso | Angola | Sailing | 2016 Summer, 2020 Summer | |
| Salomé Afonso | Portugal | Athletics | 2020 Summer, 2024 Summer | |
| Boubker El-Afoui | Morocco | 2000 Summer | |
| Gilles Anthony Afoumba | Republic of the Congo | 2020 Summer | |
| Marina Aframeeva | Russia | Equestrian dressage | 2016 Summer | |
| Felicia Afrăsiloaie | Romania | Rowing | 1976 Summer | |
| Natalia Afremova | Russian Olympic Committee | Cycling BMX racing | 2020 Summer | |
| Charlotte Afriat | Monaco | Athletics | 2020 Summer | |
| Elvis Afrifa | Netherlands | 2024 Summer | |
| Blessing Afrifah | Israel | 2024 Summer | |
| Cecil Afrika | South Africa | Rugby sevens | 2016 Summer | |
| Hannah Afriyie | Ghana | Athletics | 1972 Summer | |
| Christos Afroudakis | Greece | Water polo | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Georgios Afroudakis | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Mehrdad Afsharian | Iran | Track cycling | 1992 Summer | |
| Ebrahim Afsharpour | Boxing | 1952 Summer | |
| Muhammad Afzal | Pakistan | Wrestling | 1964 Summer | |
| Muhammad Afzal | Athletics | 1988 Summer | |
| Aga Khan IV | Iran | Alpine skiing | 1964 Winter | |
| Najib Aga | India | Judo | 1996 Summer | |
| Vetle Eck Aga | Norway | Handball | 2024 Summer | |
| Tim Agaba | South Africa | Rugby sevens | 2016 Summer | |
| Dragoș Agache | Romania | Swimming | 2012 Summer | |
| Lavinia Agache | Artistic gymnastics | 1984 Summer | |
| Caleb Agada | Nigeria | Basketball | 2020 Summer | |
| Aleksandr Agafonov | Uzbekistan | Swimming | 1996 Summer, 2000 Summer, 2004 Summer | |
| Alisa Besseghier | Turkey | Figure skating | 2014 Winter, 2018 Winter | |
| Alphonsine Agahozo | Rwanda | Swimming | 2012 Summer, 2020 Summer | |
| Victor Agali | Nigeria | Football | 2000 Summer | |
| Luca Agamennoni | Italy | Rowing | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Marina Aganina | Uzbekistan | Figure skating | 2006 Winter | |
| Eldijana Aganović | Croatia | Table tennis | 1996 Summer, 2000 Summer | |
| Gennadiy Agapov | Soviet Union | Athletics | 1964 Summer, 1968 Summer | |
| Francilla Agar | Dominica | Swimming | 2000 Summer | |
| Mark Agar | Great Britain | Bobsleigh | 1976 Winter | |
| Steve Agar | Dominica | Athletics | 1996 Summer | |
| Ernesto Agard | Panama | Basketball | 1968 Summer | |
| Terrence Agard | Netherlands | Athletics | 2020 Summer | |
| Yuto Agarie | Japan | Handball | 2020 Summer | |
| Anush Agarwalla | India | Equestrian dressage | 2024 Summer | |
| Andre Agassi | United States | Tennis | 1996 Summer | |
| Mike Agassi | Iran | Boxing | 1948 Summer, 1952 Summer | |
| Riau Ega Agata | Indonesia | Archery | 2016 Summer, 2020 Summer | |
| Arthure Agathine | Seychelles | Athletics | 1980 Summer | |
| Krikor Agathon | Egypt | Fencing, Shooting | 1924 Summer, 1936 Summer | |
| Haruka Agatsuma | Japan | Softball | 2020 Summer | |
| Ioannis Agatzanian | Greece | Wrestling | 1996 Summer | |
| Giancarlo Agazzi | Italy | Ice hockey | 1956 Winter, 1964 Winter | |
| Gladstone Agbamu | Nigeria | Athletics | 1972 Summer | |
| Leopold Agbazo | Benin | Boxing | 1972 Summer | |
| Ajayi Agbebaku | Nigeria | Athletics | 1984 Summer | |
| Clarisse Agbegnenou | France | Judo | 2016 Summer, 2020 Summer, 2024 Summer | |
| Sonya Agbéssi | Benin | Athletics | 1992 Summer | |
| Komi-Mawussi Agbetoglo | Togo | Table tennis | 2012 Summer | |
| Francis Agbo | France | Athletics | 1980 Summer | |
| José Agdamag | Philippines | Shooting | 1960 Summer, 1968 Summer | |
| William Agee | United States | Athletics | 1928 Summer | |
| Iwao Ageishi | Japan | Cross country skiing | 1932 Winter | |
| Craig Agena | United States | Judo | 1984 Summer | |
| Ronald Agénor | Haiti | Tennis | 1988 Summer, 1996 Summer | |
| Franco Agentho | Uganda | Boxing | 1996 Summer | |
| Jesper Agergård | Denmark | Cycling mountain bike | 2000 Summer | |
| Wendy Ager-Grant | Great Britain | Fencing | 1976 Summer, 1980 Summer | |
| Eden Agero | Kenya | Rugby sevens | 2020 Summer | |
| Henrik Agersborg | Norway | Sailing | 1920 Summer | |
| Maia Agerup | 2016 Summer | |
| Ragna Agerup | 2016 Summer | |
| Viktor Ageyev | Soviet Union | Water polo | 1956 Summer, 1960 Summer, 1964 Summer | |
| Krishnan Kumar Aggarwal | Kenya | Field hockey | 1960 Summer, 1964 Summer | |
| Neha Aggarwal | India | Table tennis | 2008 Summer | |
| Sven Agge | Sweden | Biathlon | 1960 Winter | |
| Mikael Aggefors | Handball | 2020 Summer | |
| Robin van Aggele | Netherlands | Swimming | 2008 Summer | |
| Harald Agger | Denmark | Athletics | 1908 Summer | |
| Khoudir Aggoune | Algeria | 2004 Summer | |
| Edward Aggrey-Fynn | Ghana | Football | 1964 Summer | |
| Adalbert Agh | Romania | Rowing | 1972 Summer | |
| István Ágh | Hungary | Shooting | 1992 Summer | |
| Norbert Ágh | Swimming | 1988 Summer | |
| Olivér Ágh | 1992 Summer, 1996 Summer | |
| Sorayya Aghaei | Iran | Badminton | 2020 Summer | |
| Mamed Aghaev | Armenia | Wrestling | 2004 Summer | |
| Julius Aghahowa | Nigeria | Football | 2000 Summer | |
| Nasser Aghaei | Iran | Boxing | 1964 Summer | |
| Gullu Aghalarzade | Azerbaijan | Rhythmic gymnastics | 2024 Summer | |
| Zohra Aghamirova | 2020 Summer, 2024 Summer | |
| Ali Aghamirzaei | Iran | Canoe sprint | 2020 Summer, 2024 Summer | |
| Levon Aghasyan | Armenia | Athletics | 2016 Summer, 2020 Summer | |
| Balabay Aghayev | Azerbaijan | Judo | 2024 Summer | |
| Rafael Aghayev | Karate | 2020 Summer | |
| Rustam Aghayev | Wrestling | 2004 Summer | |
| Vilayet Aghayev | 1996 Summer | |
| Samu Aghehowa | Spain | Football | 2024 Summer | |
| Joseph Aghoghovbia | Nigeria | 1968 Summer | |
| Said Masoud El-Agimi | Libya | Judo | 1992 Summer | |
| Ekerekeme Agiomor | Nigeria | Wrestling | 2020 Summer | |
| Naroa Agirre | Spain | Athletics | 2004 Summer, 2008 Summer | |
| Marcelino Agirrezabala | Football | 1924 Summer | |
| Vladimir Agishev | Soviet Union | Shooting | 1972 Summer | |
| Alexandra Agiurgiuculese | Italy | Rhythmic gymnastics | 2020 Summer | |
| Joanna Agius | Malta | Archery | 1980 Summer, 1984 Summer, 1988 Summer | |
| Neil Agius | Swimming | 2004 Summer | |
| Umberto Agliorini [ Wikidata ] | Italy | Artistic gymnastics | 1908 Summer | |
| Marilyn Agliotti | South Africa, Netherlands | Field hockey | 2000 Summer, 2008 Summer, 2012 Summer | |
| Aurélien Agnan [ Wikidata ] | Benin | Boxing | 1980 Summer | |
| Benjamin Agnel | France | Ice hockey | 1994 Winter | |
| Marysette Agnel | Alpine skiing | 1952 Winter, 1956 Winter | |
| Yannick Agnel | Swimming | 2012 Summer, 2016 Summer | |
| Garrick Agnew | Australia | 1948 Summer, 1952 Summer | |
| Claudio Agnisetta | Italy | Canoe sprint | 1964 Summer | |
| Nemo Agodi | Artistic gymnastics | 1908 Summer | |
| Kally Agogo | Nigeria | Wrestling | 1984 Summer | |
| Jeff Agoos | United States | Football | 2000 Summer | |
| Gregorio Agós | Uruguay | Basketball | 1936 Summer | |
| Marc Agosta | Luxembourg | Athletics | 1984 Summer | |
| Meghan Agosta | Canada | Ice hockey | 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter | |
| Pedro Agostinho | Portugal | Athletics | 1988 Summer, 1992 Summer | |
| Dante Agostini | Italy | Canoe sprint | 1952 Summer | |
| Doris de Agostini | Switzerland | Alpine skiing | 1976 Winter, 1980 Winter | |
| Jorge Agostini | Cuba | Fencing | 1948 Summer | |
| Mike Agostini | Trinidad and Tobago | Athletics | 1956 Summer | |
| Kenny Agostino | United States | Ice hockey | 2022 Winter | |
| Paul Agostino | Australia | Football | 1996 Summer | |
| Andy Agosto | Puerto Rico | Boxing | 1988 Summer | |
| Benjamin Agosto | United States | Figure skating | 2006 Winter, 2010 Winter | |
| Imre Ágoston [ Wikidata ] | Hungary | Shooting | 1952 Summer | |
| Simon Agoston | Austria | Triathlon | 2008 Summer | |
| Carlo Agostoni | Italy | Fencing | 1928 Summer, 1932 Summer, 1948 Summer | |
| Judit Ágoston-Mendelényi | Hungary | 1964 Summer | |
| Hernán Agote | Argentina | Bobsleigh | 1964 Winter | |
| Eduardo Agra | Brazil | Basketball | 1984 Summer | |
| Salvador Agra | Portugal | Football | 2016 Summer | |
| Anna Agrafioti | Greece | Sailing | 2012 Summer | |
| Seyyit Ahmet Ağralı | Turkey | Wrestling | 1968 Summer | |
| Yavuz Ağralı | Athletics | 2020 Summer | |
| Jesús Agramonte | Cuba | Handball | 1980 Summer | |
| Omar Agrebi | Tunisia | Volleyball | 2020 Summer | |
| Slim Agrebi | Judo | 1996 Summer | |
| Debora Agreiter | Italy | Cross country skiing | 2014 Winter | |
| Erik Ågren | Sweden | Boxing | 1936 Summer | |
| Renzo Agresta | Brazil | Fencing | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Christel Agrikola | West Germany | Rowing | 1976 Summer | |
| Georg Agrikola | 1984 Summer, 1988 Summer | |
| Georgios Agrimanakis | Greece | Boxing | 1976 Summer | |
| Anestis Agritis | Football | 2004 Summer | |
| Laura Agront | Puerto Rico | Athletics | 1984 Summer | |
| Spyros Agrotis | Cyprus | Road cycling | 1984 Summer | |
| Andrea Agrusti | Italy | Athletics | 2020 Summer | |
| Estella Agsteribbe | Netherlands | Artistic gymnastics | 1928 Summer | |
| Raul Aguayo | Dominican Republic | Sailing | 2008 Summer | |
| Norisbeth Agudo | Venezuela | Beach volleyball | 2016 Summer | |
| Eric Agueh | Benin | Athletics | 1996 Summer | |
| Humberto Arguedas | Peru | Football | 1960 Summer | |
| Ernesto Aguero | Cuba | Weightlifting | 1992 Summer | |
| Manuel Agüero | Argentina | Fencing | 1948 Summer | |
| Mario Aguero | Cuba | Basketball | 1948 Summer | |
| Pedro Agüero | Argentina | Boxing | 1968 Summer | |
| Rubén Agüero | Football | 1988 Summer | |
| Sergio Agüero | 2008 Summer | |
| Taismary Agüero | Cuba, Italy | Volleyball | 2000 Summer, 2008 Summer | |
| José Luiz Aguiar e Ramalho | Brazil | Handball | 1992 Summer | |
| Ángel Aguiar | Cuba | Artistic gymnastics | 1948 Summer, 1952 Summer | |
| Anoumou Aguiar | Togo | Boxing | 1988 Summer | |
| Gonzalo Aguiar | Spain | Road cycling | 1988 Summer | |
| João Aguiar | Angola | Swimming | 2000 Summer | |
| Luis Aguiar | Uruguay | Rowing | 1960 Summer | |
| Mayra Aguiar | Brazil | Judo | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Rubén Aguiar | Argentina | Athletics | 1984 Summer | |
| Samuel Aguiar | Portugal | Rowing | 1996 Summer | |
| Barry Aguibou | Guinea | Boxing | 1980 Summer | |
| Claudio Águila | Argentina | Rowing | 1988 Summer | |
| Yudith Águila | Cuba | Basketball | 1992 Summer, 1996 Summer | |
| Karel Aguilar Chacón | Canoe sprint | 2004 Summer, 2008 Summer | |
| Alberto Aguilar | Venezuela | Athletics | 2012 Summer | |
| Alessandra Aguilar | Spain | 2008 Summer, 2012 Summer, 2016 Summer | |
| Ali Aguilar | United States | Softball | 2020 Summer | |
| Andreas Aguilar | West Germany | Artistic gymnastics | 1988 Summer | |
| Andrés Aguilar | Chile | Archery | 2020 Summer | |
| Andrey Aguilar | Costa Rica | Swimming | 1980 Summer, 1984 Summer | |
| Antonio Aguilar | Spain | Water polo | 1980 Summer, 1984 Summer | |
| Dionisio Aguilar | Mexico | Artistic gymnastics | 1948 Summer | |
| Eduardo Aguilar | Spain | Field hockey | 2004 Summer | |
| Elisa Aguilar | Basketball | 2004 Summer, 2008 Summer | |
| Enrique Aguilar | Mexico | Wrestling | 1996 Summer | |
| Evelis Aguilar | Colombia | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Felipe Aguilar | Football | 2016 Summer | |
| Felipe Aguilar | Chile | Golf | 2016 Summer | |
| Fernando Aguilar | Spain | Athletics | 1964 Summer | |
| Florencio Aguilar | Panama | 1984 Summer, 1992 Summer | |
| Henrique de Aguilar | Brazil | Fencing | 1936 Summer, 1948 Summer | |
| Iñaki Aguilar | Spain | Water polo | 2008 Summer, 2012 Summer, 2016 Summer | |
| Irving Aguilar | Mexico | Road cycling | 1996 Summer | |
| José Aguilar | Cuba | Boxing | 1980 Summer | |
| Juan Aguilar | Argentina | 1964 Summer | |
| Luis Aguilar | Mexico | Sailing | 1964 Summer | |
| Luis Aguilar | Costa Rica | Swimming | 1968 Summer | |
| Macarena Aguilar | Spain | Handball | 2012 Summer, 2016 Summer | |
| Mariano Aguilar | Mexico | Athletics | 1924 Summer | |
| Mario Aguilar | El Salvador | Sailing | 1968 Summer | |
| Maximiliano Aguilar | Mexico | Swimming, Water polo | 1968 Summer, 1972 Summer, 1976 Summer | |
| Michael Aguilar | Belize | Athletics | 2004 Summer | |
| Natasha Aguilar | Costa Rica | Swimming | 1988 Summer | |
| Omar Aguilar | Chile | Athletics | 1984 Summer, 1988 Summer | |
| Rafael Aguilar | Spain | Water polo | 1984 Summer | |
| Sandra Aguilar | Rhythmic gymnastics | 2012 Summer, 2016 Summer | |
| Severino Aguilar | Panama | Wrestling | 1968 Summer | |
| Wendy Aguilar | Mexico | Artistic swimming | 1996 Summer | |
| Yulenmis Aguilar | Cuba, Spain | Athletics | 2016 Summer, 2024 Summer | |
| Ana Carolina Aguilera | Argentina | Swimming | 2000 Summer | |
| Errol Aguilera | Trinidad and Tobago | Bobsleigh | 2002 Winter | |
| Esteban Aguilera | Cuba | Boxing | 1960 Summer | |
| Jessica Aguilera | Nicaragua | Athletics | 2008 Summer | |
| Jorge Aguilera | Cuba | 1992 Summer | |
| Tomás Aguilera | Mexico | Volleyball | 2016 Summer | |
| Yosvani Aguilera | Cuba | Boxing | 1996 Summer, 2000 Summer | |
| Luña del Mar Aguiliú | Puerto Rico | Artistic swimming | 2004 Summer | |
| Julen Aguinagalde | Spain | Handball | 2012 Summer, 2020 Summer | |
| Carlos Aguirre | Mexico | Volleyball | 1968 Summer | |
| Carlos Aguirre | Equestrian jumping | 1976 Summer | |
| Carolina Aguirre | Colombia | Archery | 2016 Summer | |
| Damaris Aguirre | Mexico | Weightlifting | 2004 Summer, 2008 Summer | |
| Eduardo Aguirre | Football | 2020 Summer | |
| Érick Aguirre | 2016 Summer, 2020 Summer | |
| Facundo Aguirre | Argentina | Alpine skiing | 2006 Winter | |
| Fernanda Aguirre | Chile | Taekwondo | 2024 Summer | |
| Gabriela Aguirre | Argentina | Field hockey | 2016 Summer | |
| Gustavo Aguirre | Athletics | 2000 Summer | |
| Jeinkler Aguirre | Cuba | Diving | 2008 Summer, 2012 Summer | |
| Jesús Aguirre | Mexico | Athletics | 1924 Summer, 1928 Summer | |
| Jorge Aguirre | 1948 Summer | |
| Jorge Aguirre | Argentina | Judo | 1992 Summer | |
| José Luis Aguirre | Spain | Rowing | 1988 Summer | |
| Juan Aguirre | 1992 Summer | |
| Luis Domingo Aguirre | Argentina | Sailing | 1936 Summer | |
| Marcelo Aguirre | Paraguay | Table tennis | 2008 Summer, 2012 Summer, 2016 Summer | |
| Mason Aguirre | United States | Snowboarding | 2006 Winter | |
| Ordan Aguirre | Venezuela | Football | 1980 Summer | |
| Rolando Aguirre | Argentina | Sailing | 1924 Summer | |
| Sol Aguirre [ Wikidata ] | Peru | Surfing | 2024 Summer | |
| Unai Aguirre | Spain | Water polo | 2020 Summer, 2024 Summer | |
| William Aguirre | Nicaragua | Athletics | 1992 Summer, 1996 Summer | |
| Luis Aguirrebeña | Chile | Water polo | 1948 Summer | |
| Pedro Aguirrebeña | 1948 Summer | |
| Matías Aguirregaray | Uruguay | Football | 2012 Summer | |
| Diego Aguirregomezcorta | Argentina | Rowing | 2000 Summer | |
| Mikel Aguirrezabalaga | Spain | Handball | 2012 Summer | |
| Marianne Agulhon | France | Canoe slalom | 1992 Summer | |
| Gabriela Agúndez | Mexico | Diving | 2020 Summer, 2024 Summer | |
| Ágústa Þorsteinsdóttir | Iceland | Swimming | 1960 Summer | |
| Sri Wahyuni Agustiani | Indonesia | Weightlifting | 2016 Summer | |
| Agustín | Spain | Football | 1980 Summer | |
| Ling Ling Agustin | Indonesia | Table tennis | 1992 Summer | |
| Manuel Agustín | Spain | Field hockey | 1948 Summer | |
| Guðrún Ágústsdóttir | Iceland | Swimming | 1984 Summer | |
| José Agut | Spain | Field hockey | 1984 Summer | |
| Lameck Aguta | Kenya | Athletics | 1996 Summer | |
| Emil Agyekum | Germany | 2024 Summer | |
| Albert Agyemang | Ghana | 1996 Summer, 2000 Summer | |
| Joseph Agyemang-Gyau | Football | 1964 Summer | |
| Francis Agyepong | Great Britain | Athletics | 1992 Summer, 1996 Summer | |
| Jacqui Agyepong | 1992 Summer, 1996 Summer | |
| Michael Ah Matt | Australia | Basketball | 1964 Summer | |
| Robyn Ah Mow-Santos | United States | Volleyball | 2000 Summer, 2004 Summer, 2008 Summer | |
| Sabiamad Abdul Ahad | Malaysia | Shooting | 1984 Summer | |
| Feta Ahamada | Comoros | Athletics | 2008 Summer, 2012 Summer | |
| Younes Ahamdi | Morocco | Judo | 2004 Summer, 2008 Summer | |
| Joseph Ahanda | Cameroon | Boxing | 1980 Summer | |
| Muriel Noah Ahanda | Athletics | 2004 Summer | |
| Clarice Ahanotu | Nigeria | 1964 Summer | |
| Kelsie Ahbe | Canada | 2016 Summer | |
| Dan Ahearn | United States | 1920 Summer | |
| Kevin Ahearn | Ice hockey | 1972 Winter | |
| Tim Ahearne | Great Britain | Athletics | 1908 Summer | |
| Fred Ahern | Ireland | Equestrian jumping | 1948 Summer | |
| Nicholas A'Hern | Australia | Athletics | 1992 Summer, 1996 Summer, 2000 Summer | |
| Pat Ahern | United States | Nordic combined | 1984 Winter | |
| Michael Ahey | Ghana | Athletics | 1964 Summer, 1968 Summer, 1972 Summer | |
| Koku Ahiaku | Togo | Road cycling | 1992 Summer | |
| Stephen Ahialey | Ghana | Boxing | 1992 Summer | |
| Lahcen Ahidous | Morocco | 1964 Summer, 1968 Summer | |
| Augustine Ahinful | Ghana | Football | 1996 Summer | |
| Jahan Ahir [ Wikidata ] | India | Water polo | 1948 Summer | |
| Toivo Ahjopalo | Finland | Athletics | 1936 Summer | |
| Bruno Ahlberg | Boxing | 1932 Summer, 1936 Summer | |
| Flemming Ahlberg | Denmark | Football | 1972 Summer | |
| Gillis Ahlberg | Sweden | Rowing | 1912 Summer | |
| Mats Åhlberg | Ice hockey | 1972 Winter, 1980 Winter | |
| Olof Ahlberg | Art competitions | 1948 Summer | |
| Erik Ahldén | Athletics | 1948 Summer | |
| William Ahlemeyer | United States | Handball | 1936 Summer | |
| Annica Åhlén | Sweden | Ice hockey | 1998 Winter, 2002 Winter | |
| Johan Petter Åhlén | Curling | 1924 Winter | |
| Thomas Åhlén | Ice hockey | 1984 Winter | |
| Emilio Ahlers | Uruguay | Rowing | 1968 Summer | |
| José Ahlers | 1968 Summer | |
| Ria Ahlers | Netherlands | Athletics | 1972 Summer, 1976 Summer | |
| Anselm Ahlfors | Finland | Wrestling | 1924 Summer, 1928 Summer | |
| Alexis Ahlgren | Sweden | Athletics | 1912 Summer | |
| Anders Ahlgren | Wrestling | 1912 Summer, 1920 Summer | |
| Elisabeth Ahlgren | Swimming | 1948 Summer | |
| George Ahlgren | United States | Rowing | 1948 Summer | |
| Mats Ahlgren | Sweden | Fencing | 1992 Summer | |
| Bertil Ahlin | Boxing | 1948 Summer | |
| Lennart Ahlin | Shooting | 1964 Summer | |
| Johanna Ahlm | Handball | 2008 Summer, 2012 Summer | |
| Christian Ahlmann | Germany | Equestrian jumping | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Else Ahlmann-Ohlsen | Denmark | Fencing | 1928 Summer | |
| Kerstin Ahlqvist | Sweden | Alpine skiing | 1952 Winter | |
| Thure Ahlqvist | Boxing | 1932 Summer | |
| Tor Ahlsand | Norway | Rowing | 1964 Summer | |
| Per Egil Ahlsen | Football | 1984 Summer | |
| Ann-Margret Ahlstrand | Sweden | Athletics | 1928 Summer | |
| Bengt Ahlström | Finland | Rowing | 1952 Summer | |
| Olle Åhlund | Sweden | Football | 1952 Summer | |
| Rune Åhlund | Athletics | 1956 Summer | |
| Jitendarjit Singh Ahluwalia | India | Equestrian eventing | 1980 Summer | |
| Abbas Ahmad | Egypt | Wrestling | 1948 Summer | |
| Alaa Ahmad | Iraq | Football | 1980 Summer | |
| Bashir Ahmad | Pakistan | Athletics | 1988 Summer | |
| Fawaz Al-Ahmad | Kuwait | Football | 1992 Summer | |
| Ibrahim Ahmad [ Wikidata ] | Qatar | 1984 Summer | |
| Joe Ahmad | Great Britain | Field hockey | 1972 Summer | |
| Maqsood Ahmad | Pakistan | Athletics | 2000 Summer | |
| Muhammad Sajid Ahmad | 2004 Summer | |
| Mushtaq Ahmad | Field hockey | 1960 Summer | |
| Mushtaq Ahmad | 1984 Summer | |
| Ramli Ahmad | Malaysia | Athletics | 1976 Summer | |
| Tontowi Ahmad | Indonesia | Badminton | 2012 Summer, 2016 Summer | |
| Yahya Ahmad | Malaysia | Road cycling | 1976 Summer | |
| Omid Ahmadisafa | Refugee Olympic Team | Boxing | 2024 Summer | |
| Atefeh Ahmadi | Iran | Alpine skiing | 2022 Winter | |
| Elaheh Ahmadi | Shooting | 2012 Summer, 2016 Summer | |
| Salem Al-Ahmadi | Saudi Arabia | Athletics | 1996 Summer, 2000 Summer, 2004 Summer | |
| Salima Ahmadou [ Wikidata ] | Niger | Swimming | 2024 Summer | |
| Emin Ahmadov | Azerbaijan | Wrestling | 2012 Summer | |
| Rashad Ahmadov | Taekwondo | 2004 Summer, 2008 Summer | |
| Arne Åhman | Sweden | Athletics | 1948 Summer, 1952 Summer | |
| David Åhman | Beach volleyball | 2024 Summer | |
| Jörg Ahmann | Germany | 1996 Summer, 2000 Summer | |
| Crissy Ahmann-Leighton | United States | Swimming | 1992 Summer | |
| Ahmed El-Ahmar | Egypt | Handball | 2004 Summer, 2008 Summer, 2016 Summer, 2020 Summer | |
| Masood Ahmed Khan | Pakistan | Field hockey | 1948 Summer | |
| Abdel Latif Ahmed | Egypt | Volleyball | 2008 Summer | |
| Abdul Lahij Ahmed | Somalia | Athletics | 1984 Summer | |
| Abdul Rahim bin Ahmed | Malaya | 1956 Summer | |
| Abdulla Ahmed | Bahrain | Swimming | 2020 Summer | |
| Abdullah Ali Ahmed | Libya | Athletics | 1988 Summer | |
| Adnan Ahmed | Egypt | Field hockey | 2004 Summer | |
| Alaa El-Din Ahmed | Rowing | 2000 Summer | |
| Anis Ahmed | Pakistan | Field hockey | 2000 Summer | |
| Awad Saleh Ahmed | North Yemen | Athletics | 1988 Summer | |
| Azneem Ahmed | Maldives | 2012 Summer | |
| Bashir Ahmed | Pakistan | Field hockey | 1960 Summer | |
| Fareed Ahmed | 2012 Summer | |
| Hadi Ahmed | Iraq | Football | 1980 Summer | |
| Hamid Ahmed | Basketball | 1948 Summer | |
| Hammadi Ahmed | Football | 2016 Summer | |
| Heba Ahmed | Egypt | Rowing | 2008 Summer | |
| Hussain Ahmed | India | Football | 1956 Summer | |
| Ibrahim Abdel Rehim Ibrahim Ahmed | Egypt | Fencing | 2004 Summer | |
| Ishtiaq Ahmed | Pakistan | Field hockey | 1984 Summer, 1988 Summer | |
| Jewel Ahmed | Bangladesh | Swimming | 2004 Summer | |
| Junayna Ahmed | 2020 Summer | |
| Mahmoud Ahmed | Egypt | Water polo | 2004 Summer | |
| Mansoor Ahmed | Pakistan | Field hockey | 1988 Summer, 1992 Summer, 1996 Summer | |
| Mariam Ahmed [ Wikidata ] | Egypt | Artistic swimming | 2024 Summer | |
| Mohamed Ahmed | United Arab Emirates | Football | 2012 Summer | |
| Mohammed Ahmed | Canada | Athletics | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Muhammad Akhlaq Ahmed | Pakistan | Field hockey | 1992 Summer | |
| Muhammad Ahmed | Iraq | Swimming | 2000 Summer | |
| Mumtaz Ahmed | Pakistan | 2004 Summer | |
| Naseer Ahmed | Wrestling | 1992 Summer | |
| Nasir Ahmed | Field hockey | 2008 Summer | |
| Omar Ahmed | Kenya | Boxing | 1996 Summer | |
| Raed Ahmed | Iraq | Weightlifting | 1996 Summer | |
| Riaz Ahmed | Pakistan | Field hockey | 1968 Summer, 1972 Summer | |
| Samaa Ahmed | Egypt | Canoe sprint | 2020 Summer, 2024 Summer | |
| Samia Ahmed | Artistic swimming | 2016 Summer | |
| Sara Ahmed | Weightlifting | 2016 Summer, 2024 Summer | |
| Shahbaz Ahmed | Pakistan | Field hockey | 1988 Summer, 1992 Summer, 1996 Summer | |
| Shakeel Ahmed | India | 1992 Summer | |
| Shamha Ahmed | Maldives | Athletics | 2000 Summer | |
| Shehab El-Din Ahmed | Egypt | Football | 2012 Summer | |
| Sohail Ahmed | Pakistan | Boxing | 2004 Summer | |
| Waseem Ahmed | Field hockey | 2000 Summer, 2004 Summer, 2012 Summer | |
| Younes Ahmed | Qatar | Football | 1984 Summer | |
| Zemzem Ahmed | Ethiopia | Athletics | 2008 Summer | |
| Lyutvi Ahmedov | Bulgaria | Wrestling | 1960 Summer, 1964 Summer | |
| Shukri Ahmedov | 1976 Summer | |
| Masbah Ahmmed | Bangladesh | Athletics | 2016 Summer | |
| Ahn Byeong-keun | South Korea | Judo | 1984 Summer, 1988 Summer | |
| Ahn Byung-hong | Road cycling | 1964 Summer | |
| Ahn Jae-hyung | Table tennis | 1988 Summer | |
| Ahn Jin-hui | Ice hockey | 2018 Winter | |
| Ahn Jin-soo | Cross country skiing | 1992 Winter, 1994 Winter, 1998 Winter | |
| Ahn Seul-ki | Athletics | 2016 Summer, 2020 Summer | |
| Ahn Soo-kyeong | Shooting | 2004 Summer, 2008 Summer | |
| Manfred Ahne | West Germany | Ice hockey | 1984 Winter | |
| Jonas Ahnelöv | Sweden | 2018 Winter | |
| Arthur Ahnger | Finland | Sailing | 1912 Summer | |
| Eugen Ahnström | Sweden | Diving | 1928 Summer | |
| Aimo Aho | Finland | Athletics | 1980 Summer | |
| Matti Aho | Boxing | 1960 Summer | |
| Paavo Aho | Athletics | 1912 Summer | |
| Pascal Aho | Benin | 1980 Summer | |
| Seppo Aho | Finland | Modern pentathlon | 1968 Summer | |
| Viljo Aho | Boxing | 1960 Summer | |
| Seppo Ahokainen | Ice hockey | 1976 Winter | |
| Juha Ahokas | Wrestling | 1988 Summer, 1992 Summer, 1996 Summer, 2004 Summer | |
| Kouame Aholou | Togo | Athletics | 1992 Summer | |
| Janne Ahonen | Finland | Ski jumping | 1994 Winter, 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter | |
| Leo Ahonen | Rowing | 1972 Summer, 1976 Summer | |
| Pirjo Ahonen | Ice hockey | 2002 Winter | |
| Odile Ahouanwanou | Benin | Athletics | 2012 Summer, 2020 Summer | |
| Murielle Ahouré-Demps | Ivory Coast | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Ali Al-Ahrach | Morocco | Equestrian jumping | 2020 Summer | |
| Herwig Ahrendsen | West Germany | Handball | 1972 Summer | |
| Erich Ahrendt | Germany | Athletics | 1960 Summer | |
| Peter Ahrendt | Sailing | 1964 Summer | |
| Brigitte Ahrenholz | East Germany | Rowing | 1976 Summer | |
| Chris Ahrens | United States | 2000 Summer, 2004 Summer | |
| Gaby Ahrens | Namibia | Shooting | 2008 Summer, 2012 Summer, 2016 Summer | |
| Guillermo Ahrens | Peru | Basketball | 1948 Summer | |
| Marlene Ahrens | Chile | Athletics | 1956 Summer, 1960 Summer | |
| Stefan Ahrens | Germany | Diving | 2000 Summer | |
| Thomas Ahrens | Rowing | 1964 Summer | |
| Gunnar Åhs | Sweden | Bobsleigh | 1952 Winter, 1956 Winter | |
| Mohammad Ahsan | Indonesia | Badminton | 2012 Summer, 2016 Summer, 2020 Summer | |
| Mustafa Ahshad | Libya | Weightlifting | 1992 Summer | |
| Nicole Ahsinger | United States | Trampolining | 2016 Summer, 2020 Summer | |
| Törner Åhsman | Sweden | Boxing | 1956 Summer | |
| Anniina Ahtosalo | Finland | Road cycling | 2024 Summer | |
| Neha Ahuja | India | Alpine skiing | 2006 Winter | |
| Alfonso Ahumada | Colombia | Fencing | 1948 Summer | |
| Daniel Ahumada | Chile | Football | 1984 Summer | |
| Herminio Ahumada | Mexico | Athletics | 1924 Summer | |
| Raphaël Ahumada | Switzerland | Rowing | 2024 Summer | |
| René Ahumada | Mexico | Athletics | 1956 Summer | |
| Johannes Ahun | Estonia | Sailing | 2008 Summer, 2012 Summer | |
| Viktor Ahven | Finland | Wrestling | 1960 Summer | |
| Juliette Ah-Wan | Seychelles | Badminton | 2008 Summer | |
| Michelle-Lee Ahye | Trinidad and Tobago | Athletics | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Ai Yanhan | China | Swimming | 2016 Summer, 2020 Summer | |
| Jérémy Aicardi | France | Rugby sevens | 2016 Summer | |
| Matteo Aicardi | Italy | Water polo | 2012 Summer, 2016 Summer, 2020 Summer | |
| Magdalena Aicega | Argentina | Field hockey | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Mohamed Aich | Algeria | Rowing | 2004 Summer | |
| Hans Aichele | Switzerland | Bobsleigh | 1936 Winter | |
| Emma Aicher | Germany | Alpine skiing | 2022 Winter | |
| Utz Aichinger | West Germany | Field hockey | 1968 Summer | |
| Juan Ángel Aichino | Argentina | Rowing | 1948 Summer | |
| Vlad Dragoș Aicoboae | Romania | 2016 Summer, 2020 Summer | |
| Hideaki Aida | Japan | 1964 Summer | |
| Chérif Baba Aidara | Mauritania | Athletics | 1992 Summer, 1996 Summer | |
| Alexei Aidarov | Belarus | Biathlon | 1998 Winter, 2002 Winter | |
| Aleksis Aide | Russia | Athletics | 1912 Summer | |
| Mehdi Aidet | Algeria | 1980 Summer, 1984 Summer | |
| Achraf El Aidi [ Wikidata ] | Morocco | Canoe sprint | 2024 Summer | |
| Neringa Aidietytė | Lithuania | Athletics | 2012 Summer, 2016 Summer | |
| Rosaria Aiello | Italy | Water polo | 2016 Summer | |
| Pasquale Aiese | Rowing | 1984 Summer | |
| Clemens Aigner | Austria | Ski jumping | 2018 Winter | |
| Franz Aigner | Weightlifting | 1924 Summer | |
| Hannes Aigner | Germany | Canoe slalom | 2012 Summer, 2016 Summer, 2020 Summer | |
| Inge Aigner | Austria | Athletics | 1964 Summer, 1968 Summer | |
| Artti Aigro | Estonia | Ski jumping | 2018 Winter, 2022 Winter | |
| Nobuyuki Aihara | Japan | Artistic gymnastics | 1956 Summer, 1960 Summer | |
| Toyoji Aihara | Athletics | 1936 Summer | |
| Yutaka Aihara | Artistic gymnastics | 1992 Summer | |
| Monika Äijä | Sweden | Alpine skiing | 1988 Winter | |
| Ryoji Aikawa | Japan | Baseball | 2004 Summer | |
| Harry Aikines-Aryeetey | Great Britain | Athletics | 2016 Summer | |
| Michael Aikman | Australia | Rowing | 1956 Summer | |
| Clelia Ailara | Italy | Softball | 2000 Summer | |
| Ailinuer | China | Wrestling | 2004 Summer | |
| Steven Aimable | Senegal | Swimming | 2020 Summer | |
| Alessandro Aimar | Italy | Athletics | 1992 Summer, 1996 Summer | |
| Ambrosio Aimar | Argentina | Track cycling | 1948 Summer | |
| Lucien Aimar | France | Road cycling | 1964 Summer | |
| Mongkol Aimmanolrom | Thailand | Basketball | 1956 Summer | |
| Richard Aimonetto | France | Ice hockey | 1998 Winter, 2002 Winter | |
| Giacomo Aimoni | Italy | Ski jumping | 1964 Winter, 1968 Winter | |
| Meirambek Ainagulov | Kazakhstan | Wrestling | 2020 Summer | |
| Djamel Ainaoui | France | 2000 Summer | |
| Eirini Aindili | Greece | Rhythmic gymnastics | 2000 Summer | |
| Ben Ainslie | Great Britain | Sailing | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Ian Ainslie | South Africa | 1992 Summer, 1996 Summer, 2000 Summer | |
| Kurt Ainsworth | United States | Baseball | 2000 Summer | |
| Sarah Ainsworth | Great Britain | Freestyle skiing | 2010 Winter | |
| Sophie Ainsworth | Sailing | 2016 Summer | |
| John Ainsworth-Davis | Athletics | 1920 Summer | |
| Marian Aioani | Romania | Football | 2020 Summer | |
| Armi Airaksinen | Sweden | Swimming | 1980 Summer | |
| Joan Airey | Great Britain | Artistic gymnastics | 1948 Summer | |
| Mauro Airez | Argentina | Football | 1988 Summer | |
| Markku Airio | Finland | Judo | 1976 Summer | |
| Enrico Airoldi | Italy | Bobsleigh | 1948 Winter | |
| Remo Airoldi | 1948 Winter | |
| Anna Airy | Great Britain | Art competitions | 1928 Summer, 1932 Summer | |
| Windy Cantika Aisah | Indonesia | Weightlifting | 2020 Summer | |
| Michael Aish | New Zealand | Athletics | 2000 Summer, 2004 Summer | |
| Robin Aisher | Great Britain | Sailing | 1960 Summer, 1964 Summer, 1968 Summer | |
| Feiza Ben Aïssa | Tunisia | Table tennis | 1988 Summer, 1992 Summer | |
| Nicolas Aissat | France | Athletics | 2004 Summer | |
| Tassadit Aïssou | Algeria | Volleyball | 2008 Summer, 2012 Summer | |
| Saiyidah Aisyah | Singapore | Rowing | 2016 Summer, 2024 Summer | |
| Hamid Ait Bighrade | Morocco | Boxing | 2004 Summer | |
| Anass Aït El Abdia | Road cycling | 2016 Summer | |
| Amina Aït Hammou | Athletics | 2000 Summer, 2004 Summer | |
| Seltana Aït Hammou | 2004 Summer | |
| Makhlouf Aït Hocine | Algeria | Handball | 1988 Summer | |
| Samir Aït Saïd | France | Artistic gymnastics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Souad Aït Salem | Algeria | Athletics | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Fiorella Aíta | Peru | Volleyball | 2000 Summer | |
| Rachid Aït-Atmane | Algeria | Football | 2016 Summer | |
| Jugurtha Ait-Bekka [ Wikidata ] | Boxing | 2024 Summer | |
| Gordon Aitchison | Canada | Basketball | 1936 Summer | |
| Helen Aitchison | Great Britain | Tennis | 1912 Summer | |
| Holly Aitchison | Rugby sevens | 2020 Summer | |
| Andy Aitken | Football | 1948 Summer | |
| Brett Aitken | Australia | Track cycling | 1992 Summer, 1996 Summer, 2000 Summer | |
| Kiera Aitken | Bermuda | Swimming | 2004 Summer, 2008 Summer | |
| Robert Aitken | United States | Football | 1928 Summer | |
| Robert Ingersoll Aitken | Art competitions | 1928 Summer | |
| Victor Aitken | Australasia | Athletics | 1908 Summer | |
| Gulnafis Aitmukhambetova | Kazakhstan | Taekwondo | 2012 Summer | |
| Vladimir Aïtoff | France | Rugby | 1900 Summer | |
| Marina Aitova | Kazakhstan | Athletics | 2004 Summer, 2008 Summer | |
| Pramila Aiyappa | India | 2000 Summer, 2008 Summer | |
| Akira Aizawa | Japan | 2020 Summer | |
| Hiroyasu Aizawa | Ski jumping | 1980 Winter | |
| Iwao Aizawa | Athletics | 1928 Summer | |
| Marion Aizpors | West Germany | Swimming | 1988 Summer | |
| Héctor Aizpuro | Mexico | Basketball | 1960 Summer | |
| Edward Ajado | Nigeria | Athletics | 1952 Summer, 1956 Summer | |
| Efe Ajagba | Boxing | 2016 Summer | |
| Isabelle Cendier Ajaguin | France | Handball | 2000 Summer, 2004 Summer | |
| Mozaffar Ajali | Iran | Weightlifting | 1992 Summer | |
| Irene Ajambo | Uganda | 2004 Summer | |
| Florence Ajayi | Nigeria | Football | 2000 Summer | |
| Junior Ajayi | 2016 Summer | |
| Kayinsola Ajayi | Athletics | 2024 Summer | |
| Astrit Ajdarević | Sweden | Football | 2016 Summer | |
| Omar Ajete | Cuba | Baseball | 1992 Summer, 1996 Summer, 2000 Summer | |
| Geard Ajetović | Serbia and Montenegro | Boxing | 2000 Summer | |
| Rasheedat Ajibade | Nigeria | Football | 2024 Summer | |
| Oluwafemi Ajilore | 2008 Summer | |
| Naasan Ajjoub | Syria | Boxing | 1980 Summer, 1984 Summer | |
| Salem Ajjoub | Weightlifting | 1980 Summer, 1984 Summer | |
| Zita Ajkler | Hungary | Athletics | 2000 Summer, 2004 Summer | |
| Angela Ajodo | Nigeria | Handball | 1992 Summer | |
| Bolade Ajomale | Canada | Athletics | 2016 Summer | |
| Benedicta Ajudua | Nigeria | 2000 Summer | |
| Chioma Ajunwa | 1996 Summer | |
| Ahmet Ak | Turkey | Wrestling | 1988 Summer | |
| Vincent Aka-Akesse | Ivory Coast, France | 2000 Summer, 2004 Summer, 2008 Summer | |
| Yukiko Akaba | Japan | Athletics | 2008 Summer | |
| William Akabi-Davis | Sierra Leone | 1980 Summer | |
| Kriss Akabusi | Great Britain | 1984 Summer, 1988 Summer, 1992 Summer | |
| Ali Akacha | Algeria | Handball | 1980 Summer | |
| Chieko Akagi | Japan | Canoe sprint | 1996 Summer | |
| Kanji Akagi | Athletics | 1956 Summer | |
| Himawari Akaho | Basketball | 2020 Summer, 2024 Summer | |
| Norihiro Akahoshi | Baseball | 2000 Summer | |
| Kosei Akaishi | Wrestling | 1984 Summer, 1988 Summer, 1992 Summer | |
| Naomi Akakpo | Togo | Athletics | 2024 Summer | |
| Stella Akakpo | France | 2016 Summer | |
| Liz Akama | Japan | Skateboarding | 2024 Summer | |
| Ryoichi Akamatsu | Athletics | 2024 Summer | |
| Toshiro Akamatsu | Road cycling | 1964 Summer | |
| Muideen Akanji | Nigeria | Boxing | 2012 Summer | |
| Iyabo Akanmu | Table tennis | 1988 Summer | |
| Furkan Akar | Turkey | Short track speed skating | 2022 Winter | |
| Nasuh Akar | Wrestling | 1948 Summer | |
| Akiko Akasaka | Japan | Cross country skiing | 1972 Winter | |
| Yuichi Akasaka | Short track speed skating | 1992 Winter, 1994 Winter | |
| Akira Akasaki | Athletics | 2024 Summer | |
| Peter Akatsa | Kenya | Field hockey | 1984 Summer, 1988 Summer | |
| Hiroyuki Akatsuka | Japan | Shooting | 1984 Summer | |
| Aleksey Akatyev | Russia | Swimming | 1996 Summer | |
| Chikashi Akazawa | Japan | Ice hockey | 1960 Winter | |
| Gaku Akazawa | Samoa | Wrestling | 2024 Summer | |
| Özdemir Akbal | Turkey | Archery | 2000 Summer | |
| Salman Akbar | Pakistan | Field hockey | 2004 Summer, 2008 Summer | |
| Waqas Akbar | 2008 Summer | |
| Ahmad Akbari | Iran | Fencing | 1976 Summer | |
| Ali Akbarnejad | Wrestling | 1992 Summer | |
| Egamnazar Akbarov | Uzbekistan | Judo | 2004 Summer | |
| Fahrettin Akbaş | Turkey | Wrestling | 1952 Summer | |
| Fuat Akbaş | 1924 Summer | |
| Hatice Akbaş | Boxing | 2024 Summer | |
| Hüseyin Akbaş | Wrestling | 1956 Summer, 1960 Summer, 1964 Summer | |
| Burhan Akbudak | 2024 Summer | |
| Raif Akbulut | 1952 Summer | |
| Berke Akçam | Athletics | 2024 Summer | |
| İsmail Akçay | 1968 Summer, 1972 Summer | |
| Tolga Akcayli [ Wikidata ] | Saint Vincent and the Grenadines | Swimming | 2012 Summer | |
| Meryem Akda | Turkey | Athletics | 2016 Summer | |
| Sinan Akdag | Germany | Ice hockey | 2018 Winter | |
| Tarık Langat Akdağ | Turkey | Athletics | 2012 Summer, 2016 Summer | |
| Vehbi Akdağ | Wrestling | 1968 Summer, 1972 Summer, 1976 Summer | |
| Ahmet Akdilek | Road cycling | 2012 Summer | |
| İlknur Akdoğan | Sailing | 2000 Summer | |
| Metin Akdurak | 1964 Summer | |
| Lin Chih-sheng | Chinese Taipei | Baseball | 2008 Summer | |
| Adolfas Akelaitis | Lithuania | Athletics | 1928 Summer | |
| Serafina Akeli | Samoa | 2004 Summer, 2008 Summer | |
| Anatoly Akentyev | Soviet Union | Cross country skiing | 1968 Winter | |
| Peter Åkerberg | Sweden | Fencing | 1988 Summer | |
| Thomas Åkerberg | 1988 Summer | |
| Anne Åkerblom | Finland | Judo | 1992 Summer | |
| Nils Åkerblom | Sweden | Equestrian jumping | 1920 Summer | |
| Ulf Åkerblom | Bobsleigh | 1984 Winter | |
| Harry Åkerfelt | Finland | Canoe sprint | 1948 Summer | |
| Rainer Åkerfelt | 1960 Summer | |
| Rolf Åkerfelt | 1960 Summer | |
| Marcus Åkerholm | Sweden | Shooting | 2004 Summer | |
| Nils Åkerlindh | Wrestling | 1936 Summer | |
| Gunnar Åkerlund | Canoe sprint | 1948 Summer, 1952 Summer | |
| Olle Åkerlund | Sailing | 1932 Summer | |
| Bruce Akers | Australia | Wrestling | 1972 Summer, 1976 Summer | |
| Charlie Akers | United States | Cross country skiing, Biathlon | 1960 Winter, 1964 Winter | |
| Michelle Akers | Football | 1996 Summer | |
| Stephen Akers | Great Britain | Swimming | 1992 Summer | |
| Arne Åkerson | Sweden | Sailing | 1968 Summer | |
| Jan-Erik Åkerström | Bobsleigh | 1964 Winter | |
| Rolf Åkerström | 1988 Winter | |
| Henry Åkervall | Canada | Ice hockey | 1964 Winter | |
| Bruno Åkesson | Sweden | Wrestling | 1912 Summer | |
| Lars Åkesson | Figure skating | 1984 Winter | |
| Bilal Akgül | Turkey | Cycling mountain bike | 2008 Summer | |
| İbrahim Akgül | Wrestling | 1984 Summer | |
| Sezar Akgül | 2008 Summer | |
| Taha Akgül | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Avni Akgün | Athletics | 1952 Summer | |
| Ömer Akgün | Shooting | 2020 Summer | |
| Svitlana Akhadova | Ukraine | Canoe sprint | 2016 Summer | |
| Lilia Akhaimova | Russian Olympic Committee | Artistic gymnastics | 2020 Summer | |
| Yelena Akhaminova | Soviet Union | Volleyball | 1980 Summer | |
| Joseph Akhasamba | Kenya | Boxing | 1988 Summer, 1992 Summer | |
| Albina Akhatova | Russia | Biathlon | 1998 Winter, 2002 Winter, 2006 Winter | |
| Davoud Akhlaghi | Iran | Road cycling | 1964 Summer | |
| Habibollah Akhlaghi | Wrestling | 2012 Summer, 2016 Summer | |
| Mohammad Reza Akhlaghpasand | Table tennis | 2004 Summer | |
| Murodjon Akhmadaliev | Uzbekistan | Boxing | 2016 Summer | |
| Ildar Akhmadiev | Tajikistan | Athletics | 2020 Summer | |
| Yerdos Akhmadiyev | Kazakhstan | Cross country skiing | 2014 Winter | |
| Artur Akhmatkhuzin | Russia | Fencing | 2012 Summer, 2016 Summer | |
| Bakhtiyar Akhmedov | Wrestling | 2008 Summer | |
| Batyr Akhmedov | Turkey | Boxing | 2016 Summer | |
| Ibad Akhmedov | Belarus | Wrestling | 1996 Summer | |
| Shukhrat Akhmedov | Uzbekistan | Shooting | 1996 Summer | |
| Leyla Akhmerova | Soviet Union | Field hockey | 1980 Summer | |
| Damir Akhmetbekov | Kazakhstan | Diving | 1996 Summer, 2000 Summer | |
| Sofia Akhmeteli | Georgia | Alpine skiing | 1998 Winter, 2002 Winter | |
| Bakhyt Akhmetov | Kyrgyzstan, Kazakhstan | Weightlifting | 2000 Summer, 2004 Summer, 2008 Summer | |
| Rustam Akhmetov | Soviet Union | Athletics | 1972 Summer | |
| Tatyana Akhmetova-Amanzhol | Kazakhstan | Wrestling | 2008 Summer, 2020 Summer | |
| Ilias Akhomach | Morocco | Football | 2024 Summer | |
| Igor Akhremchik | Soviet Union | Rowing | 1960 Summer | |
| Natalya Akhrimenko | Athletics | 1980 Summer, 1988 Summer | |
| Gulraiz Akhtar | Pakistan | Field hockey | 1968 Summer | |
| Khalid Akhtar | Sailing | 1984 Summer | |
| Muhammad Akhtar | Wrestling | 1960 Summer, 1964 Summer | |
| Muhammad Khalil Akhtar | Shooting | 2020 Summer | |
| Naeem Akhtar | Field hockey | 1984 Summer, 1988 Summer | |
| Shabana Akhtar | Athletics | 1996 Summer | |
| Doli Akhter | Bangladesh | Swimming | 2000 Summer, 2004 Summer, 2008 Summer | |
| Arif Akhundov | Azerbaijan | Athletics | 1996 Summer | |
| Mirabella Akhunu | Ukraine | Artistic gymnastics | 2004 Summer | |
| John Stephen Akhwari | Tanzania | Athletics | 1968 Summer | |
| Aleksandr Akhyun [ Wikidata ] | Russia | Artistic gymnastics | 1912 Summer | |
| Allan Akia | Papua New Guinea | Athletics | 1996 Summer | |
| Tadahiro Akiba | Japan | Football | 1996 Summer | |
| Takeshi Akiba | Ice hockey | 1968 Winter, 1972 Winter, 1976 Winter | |
| Mercy Akide | Nigeria | Football | 2000 Summer, 2004 Summer | |
| John Akii-Bua | Uganda | Athletics | 1972 Summer, 1980 Summer | |
| Edward Akika | Nigeria | 1964 Summer | |
| Pylyp Akilov [ Wikidata ] | Hungary | Boxing | 2024 Summer | |
| Mikhail Akimenko | Russian Olympic Committee | Athletics | 2020 Summer | |
| Vladyslav Akimenko | Soviet Union | Sailing | 1976 Summer | |
| Masahiro Akimoto | Japan | Ski jumping | 1980 Winter | |
| Anatoly Akimov | Soviet Union | Water polo | 1972 Summer | |
| Andrei Akimov | Russia | Football | 1912 Summer | |
| Vladimir Akimov | Soviet Union | Water polo | 1980 Summer | |
| Tatiana Akimova | Russian Olympic Committee | Biathlon | 2018 Winter | |
| Erdoğan Akın | Turkey | Football | 1952 Summer | |
| Oyeronke Akindele | Nigeria | Athletics | 1968 Summer | |
| Peter Akinlabi | Table tennis | 2000 Summer, 2004 Summer | |
| Morolake Akinosun | United States | Athletics | 2016 Summer | |
| Omolade Akinremi | Nigeria | 1996 Summer | |
| Nia Akins | United States | 2024 Summer | |
| Kayode Akinsanya | Nigeria | Badminton | 1996 Summer | |
| Alaba Akintola | Athletics | 2024 Summer | |
| Henry Akinwande | Great Britain | Boxing | 1988 Summer | |
| Johnathan Akinyemi | Nigeria | Canoe slalom | 2012 Summer, 2016 Summer | |
| Mary Akinyemi | Athletics | 1980 Summer | |
| Elizabeth Akinyi | Kenya | Boxing | 2020 Summer | |
| Augusto Akio | Brazil | Skateboarding | 2024 Summer | |
| Mobolaji Akiode | Nigeria | Basketball | 2004 Summer | |
| Erika Akiyama | Japan | Rhythmic gymnastics | 1984 Summer, 1988 Summer | |
| Teruyoshi Akiyama | Shooting | 2016 Summer | |
| Yasunari Akiyama | Wrestling | 1976 Summer | |
| Yoshiko Akiyama | Archery | 1972 Summer | |
| Lahcen Samsam Akka | Morocco | Athletics | 1964 Summer, 1972 Summer | |
| Malika Akkaoui | 2012 Summer, 2016 Summer | |
| Halil Akkaş | Turkey | 2008 Summer, 2016 Summer | |
| Khadzhimurat Akkaev | Russia | Weightlifting | 2004 Summer, 2008 Summer | |
| Joan van den Akker | Netherlands | Athletics | 2004 Summer | |
| Johannes Akkerhaugen | Norway | Archery | 1972 Summer | |
| Mihraç Akkuş | Turkey | Judo | 2020 Summer | |
| Maghnes Akliouche | France | Football | 2024 Summer | |
| Nurul Akmal | Indonesia | Weightlifting | 2020 Summer, 2024 Summer | |
| Ernazar Akmataliev | Kyrgyzstan | Wrestling | 2020 Summer, 2024 Summer | |
| Roberts Akmens | Latvia | Canoe sprint | 2020 Summer | |
| Marina Akobiya | Russia | Water polo | 2000 Summer | |
| Josh Akognon | Nigeria | Basketball | 2016 Summer | |
| Eric Akogyiram | Ghana | Athletics | 1988 Summer, 1992 Summer | |
| Ayewoubo Akomatsri | Togo | Boxing | 1988 Summer | |
| Alego Akomi | Sudan | 1984 Summer | |
| Boay Akonay | Tanzania | Athletics | 1988 Summer | |
| Aleksandr Akondinov | Russia | Wrestling | 1912 Summer | |
| Aulis Akonniemi | Finland | Athletics | 1984 Summer | |
| Charles Akonnor | Ghana | Football | 1996 Summer | |
| Olga Akopyan | Russia | Handball | 2012 Summer, 2016 Summer | |
| Ákos Ajtony | Hungary | Equestrian jumping | 1972 Summer | |
| Balkrishan Akotkar | India | Athletics | 1964 Summer | |
| Casimir Kossi Akoto [ Wikidata ] | Togo | 1992 Summer, 1996 Summer | |
| Mavis Akoto | Ghana | 2000 Summer | |
| Michel Ben Akoun | Morocco | Wrestling | 1960 Summer | |
| Artur Akoyev | Unified Team | Weightlifting | 1992 Summer | |
| Ime Akpan | Nigeria | Athletics | 1996 Summer | |
| Sunday Akpata | 1964 Summer | |
| Daniel Akpeyi | Football | 2016 Summer | |
| Mehmet Akpınar | Turkey | Fencing | 1972 Summer | |
| Justina Akpulo | Nigeria | Handball | 1992 Summer | |
| Maria Akraka | Sweden | Athletics | 1992 Summer | |
| Smart Akraka | Nigeria | 1960 Summer | |
| Ahmed Akram | Egypt | Swimming | 2016 Summer | |
| Muhammad Akram | Pakistan | Rowing | 2000 Summer | |
| Nashat Akram | Iraq | Football | 2004 Summer | |
| Aristidis Akratopoulos | Greece | Tennis | 1896 Summer | |
| Konstantinos Akratopoulos | 1896 Summer | |
| Sigurd Akre-Aas | Norway | Fencing | 1924 Summer, 1928 Summer | |
| Simo Akrenius | Finland | Judo | 1972 Summer | |
| Varvara Akritidou | Greece | 2004 Summer | |
| Youssef Akrout | Tunisia | Sailing | 2012 Summer, 2016 Summer | |
| Monica Aksamit | United States | Fencing | 2016 Summer | |
| Anastasia Aksenova | Russia | Swimming | 2008 Summer | |
| Merey Akshalov | Kazakhstan | Boxing | 2008 Summer | |
| Aleksandr Aksinin | Soviet Union | Athletics | 1976 Summer, 1980 Summer | |
| Viktor Aksonov | 1964 Summer | |
| Lütfü Aksoy | Turkey | Football | 1936 Summer | |
| Bekir Aksu | Wrestling | 1968 Summer | |
| Semra Aksu | Athletics | 1984 Summer, 1988 Summer | |
| Kemal Aksur | 1948 Summer | |
| Nikolay Aksyonov | Russia | Rowing | 1996 Summer, 2000 Summer | |
| Alyona Aksyonova | Uzbekistan | Shooting | 2000 Summer, 2004 Summer | |
| Irina Aksyonova | Soviet Union | Swimming | 1980 Summer | |
| Lyudmila Aksyonova | Athletics | 1976 Summer | |
| Sergey Aksyutin | Russia | Shooting | 2004 Summer | |
| Mohammad Aktar | Afghanistan | Wrestling | 1980 Summer | |
| Sonia Aktar | Bangladesh | Swimming | 2016 Summer | |
| Hüseyin Aktaş | Turkey | Athletics | 1968 Summer, 1976 Summer | |
| Serap Aktaş | 1996 Summer, 2000 Summer | |
| Uğur Aktaş | Karate | 2020 Summer | |
| Shirin Akter | Bangladesh | Athletics | 2016 Summer | |
| Armah Akuetteh | Ghana | Football | 1972 Summer | |
| Ohenewa Akuffo | Canada | Wrestling | 2008 Summer | |
| | India | Table tennis | 2024 Summer | |
| Yuliya Akulenko | Ukraine | Athletics | 2004 Summer | |
| Marina Akulova | Russia | Volleyball | 2008 Summer | |
| Julius Akumu | Kenya | Field hockey | 1984 Summer | |
| Chie Akutsu | Japan | 2012 Summer | |
| Kozu Akutsu | Athletics | 1988 Summer | |
| Noah Akwu | Nigeria | 2012 Summer | |
| Marzhan Akzhigit | Kazakhstan | Freestyle skiing | 2018 Winter | |