| Name | Nation | Sport | Games | Notes |
|---|
| Noya Bar Am | Israel | Sailing | 2020 Summer | |
| Alexandra Bär [ Wikidata ] | Switzerland | Freestyle skiing | 2022 Winter | |
| André Bar | Belgium | Track cycling | 1956 Summer | |
| Carina Bär | Germany | Rowing | 2012 Summer, 2016 Summer | |
| Gottfried Bär | Austria | Table tennis | 1988 Summer | |
| Haim Bar | Israel | Football | 1976 Summer | |
| Juan Bar | Argentina | Handball | 2020 Summer, 2024 Summer | |
| Romy Bär | Germany | Basketball | 2024 Summer | |
| Shraga Bar | Israel | Football | 1968 Summer | |
| Walter Bar | Switzerland | Fencing | 1964 Summer | |
| Bruno Barabani | Brazil | Weightlifting | 1952 Summer, 1956 Summer, 1960 Summer | |
| Alexander Barabanov | Russian Olympic Committee | Ice hockey | 2018 Winter | |
| Mykyta Barabanov | Ukraine | Athletics | 2020 Summer | |
| Olga Barabanschikova | Belarus | Tennis | 1996 Summer, 2000 Summer | |
| Andrei Barabaș | Romania | Athletics | 1960 Summer, 1964 Summer | |
| Enikő Barabás | Rowing | 2008 Summer, 2012 Summer | |
| Sergey Barabashin | Unified Team | Field hockey | 1992 Summer | |
| Anna Maria Barabino | Italy | Sailing | 1992 Summer | |
| Armando Barabino | Art competitions | 1936 Summer | |
| Samir Barać | Croatia | Water polo | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Stanko Barać | Basketball | 2008 Summer | |
| Valér Barač | Czechoslovakia | Athletics | 1936 Summer | |
| Silvio Baracchini | Italy | Water polo | 1972 Summer, 1976 Summer | |
| Mariano Baracetti | Argentina | Beach volleyball | 2000 Summer, 2004 Summer, 2008 Summer | |
| Xavier Barachet | France | Handball | 2012 Summer | |
| Paula Baracho | Brazil | Swimming | 2004 Summer | |
| Philippe Baradel | France | Cross country skiing | 1968 Winter | |
| Costică Bărăgan | Romania | Fencing | 1972 Summer, 1980 Summer | |
| Tullio Baraglia | Italy | Rowing | 1960 Summer, 1968 Summer | |
| Emilio Barahona | Honduras | Athletics | 1968 Summer | |
| Juan Barahona | Chile | Sailing | 1984 Summer | |
| Juan Barahona | Ecuador | Judo | 2000 Summer | |
| Noelle Barahona | Chile | Alpine skiing | 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter | |
| Pablo Barahona | Honduras | Swimming | 1988 Summer | |
| Roy Barahona | 2004 Summer | |
| Ángel Barajas | Colombia | Artistic gymnastics | 2024 Summer | |
| Jorge Barajas | Mexico | Volleyball | 2016 Summer | |
| Antonín Barák | Czechoslovakia | Rowing | 1980 Summer | |
| Ronald Barak | United States | Artistic gymnastics | 1964 Summer | |
| Sara Baraka | Egypt | Rowing | 2012 Summer | |
| Hanna Barakat | Palestine | Athletics | 2020 Summer | |
| Mohammed Barakat | United States | Field hockey | 1984 Summer | |
| Yar Mohammed Barakzai | Afghanistan | Football | 1948 Summer | |
| Bertha Baraldi | Mexico | Diving | 1968 Summer, 1972 Summer | |
| Gianfranco Baraldi | Italy | Athletics | 1956 Summer, 1960 Summer | |
| Norma Baraldi | Mexico | Diving | 1976 Summer | |
| Elliott Baralo [ Wikidata ] | Sweden | Freestyle skiing | 2022 Winter | |
| Issi Baran | Finland | Athletics | 1952 Summer | |
| Primo Baran | Italy | Rowing | 1968 Summer, 1972 Summer, 1976 Summer | |
| Radosław Baran | Poland | Wrestling | 2016 Summer | |
| Ria Baran | Germany | Figure skating | 1952 Winter | |
| Robert Baran | Poland | Wrestling | 2016 Summer, 2024 Summer | |
| Witold Baran | Athletics | 1964 Summer | |
| Aivaras Baranauskas | Lithuania | Track cycling | 2004 Summer | |
| Józef Baran-Bilewski | Poland | Athletics | 1928 Summer | |
| Anna Baranchuk | Russian Olympic Committee | Rugby sevens | 2020 Summer | |
| Max Barandun | Switzerland | Athletics | 1964 Summer | |
| Rudolf Baránek | Czechoslovakia | Rowing | 1936 Summer | |
| Anton Baraniak | Weightlifting | 1980 Summer, 1988 Summer | |
| Ivan Baranka | Slovakia | Ice hockey | 2010 Winter, 2014 Winter, 2018 Winter | |
| Denisa Baránková | Archery | 2020 Summer, 2024 Summer | |
| Aleksei Barannikov | Russia | Nordic combined | 2002 Winter, 2006 Winter | |
| Velikton Barannikov | Soviet Union | Boxing | 1960 Summer, 1964 Summer | |
| Anastasiya Barannikova | Russian Olympic Committee | Ski jumping | 2018 Winter | |
| Matthew Baranoski | United States | Track cycling | 2016 Summer | |
| Aleksey Baranov | Soviet Union | Nordic combined | 1976 Winter | |
| Matwai Baranov | Israel | Wrestling | 1992 Summer | |
| Sergei Baranov | Russia | Volleyball | 2004 Summer | |
| Viktor Baranov [ Wikidata ] | Diving | 1912 Summer | |
| Viktor Dmitryevich Baranov | Soviet Union | Cross country skiing | 1956 Winter | |
| Vitaliy Baranov | Great Britain | Figure skating | 2002 Winter | |
| Elena Baranova | Unified Team, Russia | Basketball | 1992 Summer, 1996 Summer, 2004 Summer | |
| Varvara Baranova | Russian Olympic Committee | Canoe sprint | 2020 Summer | |
| Natalya Baranova-Masalkina | Russia | Cross country skiing | 2006 Winter | |
| Anatolijus Baranovas | Soviet Union | Athletics | 1972 Summer | |
| Dmytro Baranovskyi | Ukraine | 2004 Summer | |
| Katarzyna Baranowska | Poland | Swimming | 2008 Summer, 2016 Summer | |
| Dariusz Baranowski | Road cycling | 1992 Summer, 1996 Summer | |
| Zbigniew Baranowski | Wrestling | 2016 Summer, 2024 Summer | |
| Zenon Baranowski | Athletics | 1956 Summer | |
| Fabian Barański | Rowing | 2020 Summer, 2024 Summer | |
| Barbara Baran-Wojnar | Athletics | 1980 Summer | |
| Árpád Bárány | Hungary | Fencing | 1960 Summer, 1964 Summer | |
| István Bárány | Swimming | 1924 Summer, 1928 Summer, 1932 Summer | |
| István Baranya | Wrestling | 1956 Summer | |
| János Baranyai | Weightlifting | 2008 Summer | |
| Lajos Baranyai | Boxing | 1960 Summer | |
| László Baranyai | Artistic gymnastics | 1948 Summer | |
| András Baranyecz | Track cycling | 1968 Summer | |
| Judit Baranyi | Swimming | 1968 Summer | |
| Mohammad Reza Barari | Iran | Weightlifting | 2016 Summer | |
| Joseph Baras | Belgium | Shooting | 1900 Summer | |
| Belinda Barasa [ Wikidata ] | Kenya | Volleyball | 2024 Summer | |
| Violet Barasa | 2000 Summer, 2004 Summer | |
| Aurica Bărăscu | Romania | Rowing | 2000 Summer, 2004 Summer | |
| Jacqueline Barasinski | France | Luge | 1968 Winter | |
| Miguel Barasorda | Puerto Rico | Shooting | 1948 Summer, 1960 Summer, 1968 Summer | |
| Paweł Baraszkiewicz | Poland | Canoe sprint | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Andy Barat | Comoros | Canoe slalom | 2024 Summer | |
| Larissa Barata | Brazil | Rhythmic gymnastics | 2004 Summer | |
| Samuel Barata | Portugal | Athletics | 2024 Summer | |
| Leó von Baráth | Hungary | Tennis | 1912 Summer | |
| Samuel Barathay | France | Rowing | 1992 Summer, 1996 Summer, 2000 Summer | |
| Georges Barathon | Wrestling | 1920 Summer | |
| Éva Barati | Hungary | Athletics | 1992 Summer | |
| Antal Barát-Lemberkovits | Shooting | 1932 Summer | |
| Georges Baraton | France | Athletics | 1924 Summer, 1928 Summer | |
| Alejandro Baratta | Argentina | Cross country skiing | 1984 Winter | |
| Raymond Baratto | France | Football | 1960 Summer | |
| Stefan Baraud | Cayman Islands | Road cycling | 1992 Summer, 1996 Summer | |
| Bui Baravilala | United States | Rugby sevens | 2016 Summer | |
| Filipe Baravilala | Fiji | Football | 2016 Summer | |
| Azad Al-Barazi | Syria | Swimming | 2012 Summer, 2016 Summer | |
| Jenny Barazza | Italy | Volleyball | 2004 Summer, 2008 Summer, 2012 Summer | |
| Francisco Barba | Mexico | Football | 1972 Summer | |
| Ahmed Barbach | Morocco | Judo | 1988 Summer | |
| Ana Barbachan | Brazil | Sailing | 2012 Summer, 2016 Summer, 2020 Summer | |
| Evgeniy Barbakov | Soviet Union | Rowing | 1976 Summer, 1980 Summer | |
| Idalberto Barban | Cuba | Wrestling | 1976 Summer, 1980 Summer | |
| Morgan Barbançon | Spain, France | Equestrian dressage | 2012 Summer, 2020 Summer | |
| Anthony Barbar | Lebanon | Swimming | 2016 Summer | |
| Bárbara | Brazil | Football | 2008 Summer, 2016 Summer, 2020 Summer | |
| Mariano Barbaresi | Italy | Boxing | 1920 Summer | |
| Ivica Barbarić | Yugoslavia | Football | 1988 Summer | |
| Roger de Barbarin | France | Shooting | 1900 Summer | |
| Kosta Barbarouses | New Zealand | Football | 2012 Summer | |
| Nicolae Bărbășescu | Romania | Biathlon | 1964 Winter, 1968 Winter | |
| Andrey Barbashinsky | Unified Team | Handball | 1992 Summer | |
| Camille Barbaud | France | Athletics | 1924 Summer | |
| Édouard Barbazan | 1924 Summer | |
| Alexandru Barbu | Romania | Alpine skiing | 2014 Winter, 2018 Winter | |
| Jonathan Barbe | Seychelles | Sailing | 1996 Summer, 2000 Summer | |
| Eduardo Barbeiro | Portugal | Swimming, Water polo | 1952 Summer | |
| Lisa Barbelin | France | Archery | 2020 Summer, 2024 Summer | |
| Henri Barbenés | Rowing | 1920 Summer | |
| Alana Barber | New Zealand | Athletics | 2016 Summer | |
| Aleesha Barber | Trinidad and Tobago | 2008 Summer | |
| Alf Barber | Great Britain | Boxing | 1924 Summer | |
| Anthony Barber | Australia | 1964 Summer | |
| Billy Barber | 1948 Summer | |
| Darren Barber | Canada | Rowing | 1992 Summer, 1996 Summer | |
| Dick Barber | United States | Athletics | 1932 Summer | |
| Eunice Barber | Sierra Leone, France | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| George Barber | Canada | 1908 Summer | |
| Karen Barber | Great Britain | Figure skating | 1980 Winter, 1984 Winter | |
| Kate Barber | United States | Field hockey | 2008 Summer | |
| Kelsey-Lee Barber | Australia | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Paul Barber | Great Britain | Field hockey | 1984 Summer, 1988 Summer | |
| Sara Barber | Canada | Swimming | 1956 Summer, 1960 Summer | |
| Shawn Barber | Athletics | 2016 Summer | |
| Edwin Barberena | Nicaragua | Shooting | 2020 Summer | |
| Mark Barberio | Canada | Ice hockey | 2022 Winter | |
| Vern Barberis | Australia | Weightlifting | 1952 Summer, 1956 Summer | |
| Ernest Barberolle | France | Rowing | 1920 Summer | |
| Luigi Barbesino | Italy | Football | 1912 Summer | |
| Antonio Barbet | Mexico | Volleyball | 1968 Summer | |
| Elvire Barbey | Switzerland | Figure skating | 1928 Winter | |
| Louis Barbey | 1928 Winter | |
| Melanie Barbezat | Curling | 2022 Winter | |
| Émile Barbier | Belgium | Fencing | 1928 Summer | |
| Leonid Barbier | Soviet Union | Swimming | 1960 Summer | |
| René Barbier | France | Fencing | 1928 Summer | |
| Larry Barbiere | United States | Swimming | 1968 Summer | |
| Alberto Barbieri | Argentina | Wrestling | 1928 Summer | |
| Arianna Barbieri | Italy | Swimming | 2012 Summer | |
| Blago Barbieri | Yugoslavia | 1952 Summer | |
| Erica Barbieri | Italy | Judo | 2012 Summer | |
| Laurent Barbiéri | France | Artistic gymnastics | 1984 Summer | |
| Marcello Barbieri | Italy | 1996 Summer | |
| Ottavio Barbieri | Football | 1924 Summer | |
| Rachele Barbieri | Track cycling | 2020 Summer | |
| Renato Barbieri | Rowing | 1932 Summer | |
| André Barbillat [ Wikidata ] | France | Shooting | 1908 Summer | |
| Alan Barblett | Australia | Field hockey | 1956 Summer | |
| Marco Barboni [ Wikidata ] | Italy | Baseball | 1996 Summer | |
| Mariana Barbosa Ramalho | Brazil | Rugby sevens | 2016 Summer | |
| Cândido Barbosa | Portugal | Road cycling | 1996 Summer, 2004 Summer | |
| Dario Barbosa | Brazil | Shooting | 1920 Summer | |
| Eduardo Barbosa | Judo | 2020 Summer | |
| Gabriel Barbosa | Football | 2016 Summer | |
| Henrique Barbosa | Swimming | 2008 Summer, 2012 Summer | |
| Jade Barbosa | Artistic gymnastics | 2008 Summer, 2016 Summer, 2024 Summer | |
| José Barbosa | Puerto Rico | Athletics | 1948 Summer | |
| José Luíz Barbosa | Brazil | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Kurt Bryan Barbosa | Philippines | Taekwondo | 2020 Summer | |
| Leandro Barbosa | Brazil | Basketball | 2012 Summer, 2016 Summer | |
| Luis Barbosa | Colombia | Athletics | 1980 Summer | |
| Neyde Barbosa | Angola | Handball | 2004 Summer, 2012 Summer, 2016 Summer | |
| Palmira Barbosa | 1996 Summer | |
| Vera Barbosa | Portugal | Athletics | 2012 Summer, 2016 Summer | |
| Ana Bărbosu | Romania | Artistic gymnastics | 2024 Summer | |
| Roy Barbour | Zimbabwe | Field hockey | 1964 Summer | |
| Grettel Barboza | Costa Rica | Shooting | 2004 Summer | |
| Ion Barbu | Romania | Athletics | 1956 Summer | |
| Valentin Barbu | Boxing | 1992 Summer | |
| Virgil Bărbuceanu | Equestrian eventing, Equestrian jumping | 1956 Summer, 1960 Summer | |
| Kazimierz Barburski | Poland | Fencing | 1968 Summer, 1972 Summer | |
| Nicolae Bărbuță | Romania | Volleyball | 1964 Summer | |
| Ray Barbuti | United States | Athletics | 1928 Summer | |
| Kiril Barbutov | Bulgaria | Wrestling | 1992 Summer | |
| Philippe Barca-Cysique | France | Volleyball | 2004 Summer | |
| Grazia Barcellona | Italy | Figure skating | 1948 Winter | |
| Victor Barcellos Borges | Brazil | Volleyball | 1964 Summer, 1968 Summer | |
| Armando Barcellos | Triathlon | 2000 Summer | |
| Paula Barceló | Spain | Sailing | 2020 Summer, 2024 Summer | |
| David Bárcena Ríos | Mexico | Modern pentathlon, Equestrian eventing | 1964 Summer, 1968 Summer, 1972 Summer, 1976 Summer, 1980 Summer | |
| Loretta Barcenas | Philippines | Athletics | 1964 Summer | |
| Otto Barch | Soviet Union | 1968 Summer, 1972 Summer, 1976 Summer | |
| Stephan Barcha | Brazil | Equestrian jumping | 2016 Summer, 2024 Summer | |
| Francisco Barcia | Spain | Wrestling | 1988 Summer, 1992 Summer | |
| Gerard Barcia | Andorra | Shooting | 1996 Summer | |
| Edward Barcik | Poland | Road cycling | 1972 Summer | |
| Miroslav Barčík | Slovakia | Football | 2000 Summer | |
| Adam Barclay | Australia | Bobsleigh | 1994 Winter, 1998 Winter | |
| Ben Barclay | New Zealand | Freestyle skiing | 2022 Winter | |
| Jaclyn Barclay | Australia | Swimming | 2024 Summer | |
| Jim Barclay | New Zealand | Field hockey | 1960 Summer | |
| Kate Barclay | Australia | Canoe sprint | 2004 Summer | |
| Esequiel Barco | Argentina | Football | 2020 Summer | |
| Silvano Barco | Italy | Cross country skiing | 1988 Winter | |
| Donald Barcome Jr. | United States | Curling | 2002 Winter | |
| Elemér von Barcza | Hungary | Equestrian jumping | 1936 Summer | |
| Miklós Barcza | Ice hockey | 1928 Winter, 1936 Winter | |
| Leigh Barczewski | United States | Track cycling | 1976 Summer | |
| Henri Bard | France | Football | 1920 Summer | |
| Melvin Bard | 2020 Summer | |
| Arvīds Bārda | Latvia | 1924 Summer | |
| Edvīns Bārda | 1924 Summer | |
| Michal Barda | Czechoslovakia | Handball | 1988 Summer | |
| Rūdolfs Bārda | Latvia | Football | 1924 Summer | |
| Georgina Bardach | Argentina | Swimming | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Virginia Bardach | 2016 Summer, 2020 Summer | |
| Anders Bardal | Norway | Ski jumping | 2002 Winter, 2010 Winter, 2014 Winter | |
| Tomas Bardauskas | Lithuania | Athletics | 2000 Summer | |
| Jean de Bardel | Switzerland | Fencing | 1928 Summer | |
| Alessandro Bardelli | Italy | Rowing | 1948 Summer | |
| Brian Barden | United States | Baseball | 2008 Summer | |
| Alexandre Bardenet | France | Fencing | 2020 Summer | |
| Anne-Lise Bardet | Canoe slalom | 2000 Summer | |
| Romain Bardet | Road cycling | 2016 Summer | |
| Eddie Bardgett | Bermuda | Sailing | 1988 Summer | |
| Walter Bardgett | Swimming | 1948 Summer, 1952 Summer | |
| Danio Bardi | Italy | Water polo | 1960 Summer, 1964 Summer | |
| Felipe Bardi | Brazil | Athletics | 2020 Summer, 2024 Summer | |
| Gyöngyi Bardi-Gerevich | Hungary | Volleyball | 1976 Summer, 1980 Summer | |
| Angels Bardina | Spain | Swimming | 2000 Summer | |
| Yutta Barding | Denmark | Fencing | 1924 Summer | |
| Ulla Barding-Poulsen | 1936 Summer, 1952 Summer | |
| Samanta Bardini | Italy | Softball | 2004 Summer | |
| Giovanni Bardis | France | Weightlifting | 2008 Summer, 2016 Summer | |
| Mélanie Bardis | 2008 Summer, 2012 Summer | |
| Sándor Bárdosi | Hungary | Wrestling | 2000 Summer | |
| Karen Bardsley | Great Britain | Football | 2012 Summer | |
| Viyaleta Bardzilouskaya | Independent Olympians | Trampolining | 2024 Summer | |
| Jerzy Bardziński | Poland | Bobsleigh | 1928 Winter | |
| George Bare | United States | Modern pentathlon | 1924 Summer | |
| Gregorio Bare | Uruguay | Road cycling | 1996 Summer, 2000 Summer | |
| Karim Bare | Niger | Swimming | 2000 Summer | |
| Reginald Bare | Great Britain | Rowing | 1924 Summer | |
| Selemon Barega | Ethiopia | Athletics | 2020 Summer, 2024 Summer | |
| Fredy Bareiro | Paraguay | Football | 2004 Summer | |
| Pavel Bareisha | Belarus | Athletics | 2016 Summer | |
| Mounir Barek | Tunisia | Volleyball | 1984 Summer | |
| Olesya Barel | Soviet Union | Basketball | 1988 Summer | |
| Rob Barel | Netherlands | Triathlon | 2000 Summer | |
| Mauro Barella | Italy | Athletics | 1984 Summer | |
| Marianna Barelli | Rowing | 1996 Summer | |
| Paolo Barelli | Swimming | 1972 Summer, 1976 Summer | |
| Leonardo Baremboin | Argentina | 1968 Summer | |
| Alberto Barenghi | Boxing | 1952 Summer | |
| Franco Baresi | Italy | Football | 1984 Summer | |
| Hakon Barfod | Norway | Sailing | 1948 Summer, 1952 Summer | |
| Walter Barfuss | West Germany | Bobsleigh | 1980 Winter | |
| Benjamin Barger | United States | Sailing | 2008 Summer | |
| Mike Bargeron [ Wikidata ] | Great Britain | Shooting | 2024 Summer | |
| Kleanthis Bargkas | Greece | Track cycling | 2000 Summer | |
| Mohamed Barguaoui | Tunisia | Wrestling | 2000 Summer | |
| Warren Barguil | France | Road cycling | 2016 Summer | |
| Jeremy Barham | Great Britain | Field hockey | 1968 Summer | |
| Arne Barhaugen | Norway | Nordic combined | 1956 Winter, 1964 Winter | |
| Andrea Bari | Italy | Volleyball | 2012 Summer | |
| Mikhail Bariban | Soviet Union | Athletics | 1972 Summer | |
| Hrvoje Barić | Yugoslavia | Swimming | 1984 Summer | |
| Wilde Baridón | Uruguay | Road cycling | 1964 Summer | |
| Zakariah Barie | Tanzania | Athletics | 1980 Summer, 1984 Summer | |
| Marcel Baril | France | Weightlifting | 1936 Summer | |
| Olivia Baril | Canada | Road cycling | 2024 Summer | |
| Paula Barila Bolopa | Equatorial Guinea | Swimming | 2000 Summer | |
| Liutauras Barila | Lithuania | Biathlon | 1998 Winter, 2002 Winter | |
| Joe Barile | United States | Luge | 1988 Winter | |
| Antonino Barillà | Italy | Shooting | 2016 Summer | |
| José Julio Barillas | Guatemala | Athletics | 1952 Summer | |
| Lou Barin | France | Freestyle skiing | 2018 Winter | |
| Stéphane Barin | Ice hockey | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter | |
| Michal Barinka | Czech Republic | 2014 Winter | |
| Viktor Barinov | Soviet Union | Rowing | 1960 Summer | |
| Yuri Barinov | Road cycling | 1980 Summer | |
| Taïna Barioz | France | Alpine skiing | 2010 Winter, 2018 Winter | |
| Roger Barisien | Fencing | 1936 Summer | |
| Eugenio Barisoni | Italy | Art competitions | 1936 Summer | |
| Nicolas Bäriswyl | Switzerland | Athletics | 2000 Summer | |
| Renzo Bariviera | Italy | Basketball | 1972 Summer, 1976 Summer | |
| Vendramino Bariviera | Road cycling | 1960 Summer | |
| Valérie Barizza | France | Short track speed skating | 1992 Winter, 1994 Winter | |
| Sonja Barjaktarović | Montenegro | Handball | 2012 Summer, 2016 Summer | |
| Salim Barjum | Colombia | Diving | 1968 Summer, 1972 Summer | |
| Aleksei Barkalov | Soviet Union | Water polo | 1968 Summer, 1972 Summer, 1976 Summer, 1980 Summer | |
| Olle Barkander | Sweden | Equestrian eventing | 1960 Summer | |
| Vitolds Barkāns | Soviet Union | Rowing | 1968 Summer | |
| Erdal Barkay | Turkey | Athletics | 1948 Summer, 1952 Summer | |
| Cliff Barker | United States | Basketball | 1948 Summer | |
| David Barker | Great Britain | Equestrian jumping | 1960 Summer | |
| David B. Barker | 1964 Summer | |
| Dean Barker | New Zealand | Sailing | 2004 Summer | |
| Elinor Barker | Great Britain | Track cycling | 2016 Summer, 2020 Summer, 2024 Summer | |
| Ernie Barker | Australia | Equestrian eventing | 1956 Summer | |
| Ervin Barker | United States | Athletics | 1904 Summer | |
| Florence Barker | Great Britain | Swimming | 1924 Summer | |
| Harold Barker | Rowing | 1908 Summer | |
| Henry Barker | Athletics | 1908 Summer | |
| Ian Barker | Sailing | 2000 Summer | |
| James Barker | Athletics | 1912 Summer | |
| Keith Barker | British Virgin Islands | Sailing | 1984 Summer | |
| Natasha Barker | Australia | Weightlifting | 2000 Summer | |
| Peter Barker | British Virgin Islands | Sailing | 1984 Summer | |
| Roxanne Barker | South Africa | Football | 2012 Summer, 2016 Summer | |
| Ursel Barkey | Germany | Figure skating | 1960 Winter | |
| Mohammad Hossein Barkhah | Iran | Weightlifting | 2000 Summer, 2004 Summer | |
| Ebrahim Barkhordari | Shooting | 2012 Summer | |
| Mehran Barkhordari | Taekwondo | 2024 Summer | |
| Ahmed Barki | Morocco | Boxing | 2012 Summer | |
| Charles Barkley | United States | Basketball | 1992 Summer, 1996 Summer | |
| Tan Barkley | Canada | Rowing | 1984 Summer | |
| Jane Barkman | United States | Swimming | 1968 Summer, 1972 Summer | |
| Aleksander Barkov | Finland | Ice hockey | 2014 Winter | |
| Dmitri Barkov | Russia | Shooting | 1912 Summer | |
| Viacheslav Barkov [ Wikidata ] | Russian Olympic Committee | Nordic combined | 2022 Winter | |
| Leonid Barkovskyy | Soviet Union | Athletics | 1964 Summer, 1968 Summer, 1972 Summer | |
| Sally Barkow | United States | Sailing | 2008 Summer | |
| Don Barksdale | Basketball | 1948 Summer | |
| Sharrieffa Barksdale | Athletics | 1984 Summer | |
| Raymond Barkway | Great Britain | 1948 Summer | |
| Karl Barl [ Wikidata ] | Austria | Wrestling | 1912 Summer | |
| Lazarus Barla | India | Field hockey | 2000 Summer | |
| Sylvia Barlag | Netherlands | Athletics | 1980 Summer | |
| Małgorzata Barlak-Kamasińska | Poland | Artistic gymnastics | 1972 Summer | |
| Bernd Barleben | Germany | Track cycling | 1960 Summer | |
| Charles Henry Bartlett | Great Britain | 1908 Summer | |
| William Bartlett | United States | Athletics | 1920 Summer | |
| Harald Barlie | Norway | Wrestling | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| Oddvar Barlie | 1960 Summer | |
| Vegar Barlie | Ice hockey | 1994 Winter | |
| Enzo Barlocco | Italy | Water polo | 1968 Summer | |
| Scott Bärlocher [ Wikidata ] | Switzerland | Rowing | 2024 Summer | |
| Valérie Barlois-Mevel-Leroux | France | Fencing | 1996 Summer, 2000 Summer | |
| Chris Barlow | United States | Canoe sprint | 1992 Summer | |
| David Barlow | Australia | Basketball | 2008 Summer, 2012 Summer | |
| Jocelyn Barlow | Great Britain | Shooting | 1948 Summer, 1952 Summer | |
| Rachel Barlow | South Africa | Fencing | 2004 Summer | |
| Vernon Barlow | Great Britain | Modern pentathlon | 1932 Summer | |
| Gunnar Bärlund | Finland | Boxing | 1932 Summer | |
| Sulo Bärlund | Athletics | 1936 Summer | |
| Bijoy Barman | India | Swimming, Water polo | 1952 Summer | |
| Bernard Barmasai | Kenya | Athletics | 2000 Summer | |
| Dmitriy Barmashov | Kazakhstan | Freestyle skiing | 2010 Winter, 2014 Winter | |
| Andrej Barna | Serbia | Swimming | 2020 Summer, 2024 Summer | |
| Frigyes Barna | Hungary | Ice hockey | 1928 Winter | |
| Petr Barna | Czechoslovakia | Figure skating | 1988 Winter, 1992 Winter | |
| Jean Barnabé | Democratic Republic of the Congo | Road cycling | 1968 Summer | |
| Daundre Barnaby | Canada | Athletics | 2012 Summer | |
| Arthur Barnard | United States | 1952 Summer | |
| Elisa Barnard | Australia | Archery | 2012 Summer | |
| Ethel Barnard | Great Britain | Art competitions | 1912 Summer | |
| Jan Barnard | South Africa | Athletics | 1956 Summer | |
| John Barnard [ Wikidata ] | Great Britain | Track cycling | 1908 Summer | |
| Susan Barnard | Swimming | 1976 Summer | |
| Vladimir Barnashov | Soviet Union | Biathlon | 1980 Winter | |
| Ghislaine Barnay | France | Athletics | 1968 Summer | |
| Johan Barne | Sweden | Sailing | 1992 Summer, 1996 Summer, 2000 Summer | |
| Guy Barnea | Israel | Swimming | 2008 Summer | |
| Marten von Barnekow | Germany | Equestrian jumping | 1936 Summer | |
| Albert Barnes | Great Britain | Boxing | 1936 Summer | |
| Bev Barnes | Canada | Basketball | 1976 Summer | |
| Brian Barnes | Great Britain | Swimming | 1952 Summer | |
| Cayla Barnes | United States | Ice hockey | 2018 Winter, 2022 Winter | |
| David Barnes | Australia | Archery | 2004 Summer, 2020 Summer | |
| Emre Zafer Barnes | Turkey | Athletics | 2016 Summer, 2020 Summer | |
| Ernest Barnes | Great Britain | 1908 Summer | |
| Ernest Barnes | New Zealand | Field hockey | 1964 Summer | |
| George Barnes | Great Britain | Shooting | 1908 Summer | |
| Harrison Barnes | United States | Basketball | 2016 Summer | |
| Heinrich Barnes | South Africa | Wrestling | 2008 Summer | |
| Jim "Bad News" Barnes | United States | Basketball | 1964 Summer | |
| Jo-Anne Barnes | Australia | Swimming | 1968 Summer | |
| John Barnes | United States | Athletics | 1952 Summer | |
| Justin Barnes [ Wikidata ] | Canada | Sailing | 2024 Summer | |
| Kirsten Barnes | Rowing | 1988 Summer, 1992 Summer | |
| Lanny Barnes | United States | Biathlon | 2006 Winter, 2010 Winter, 2014 Winter | |
| Lee Barnes | Athletics | 1924 Summer, 1928 Summer | |
| Liz Barnes | Great Britain | 1976 Summer | |
| Nicky Barnes | Australia | Water polo | 1964 Summer, 1972 Summer | |
| Nikki Barnes | United States | Sailing | 2020 Summer | |
| N'Kosie Barnes | Antigua and Barbuda | Athletics | 1996 Summer, 2000 Summer | |
| Paddy Barnes | Ireland | Boxing | 2008 Summer, 2012 Summer, 2016 Summer | |
| Randy Barnes | United States | Athletics | 1988 Summer, 1996 Summer | |
| Rolph Barnes | Canada | 1924 Summer | |
| Tom Barnes | United States | Bobsleigh | 1984 Winter | |
| Tracey Ann Barnes | Jamaica | Athletics | 1996 Summer | |
| Tracy Barnes | United States | Biathlon | 2006 Winter | |
| William Barnes | Canada | Shooting | 1924 Summer | |
| William Barnes | Ireland | Boxing | 1948 Summer | |
| Zandrion Barnes | Jamaica | Athletics | 2024 Summer | |
| Lacy Barnes-Mileham | United States | 1996 Summer | |
| Nelly Barnet | Cuba | Volleyball | 1972 Summer, 1976 Summer, 1980 Summer | |
| Christine Barnetson | Australia | Swimming | 1964 Summer | |
| Allison Barnett | Great Britain | Rowing | 1992 Summer | |
| Bryan Barnett | Canada | Athletics, Bobsleigh | 2008 Summer, 2014 Winter, 2018 Winter | |
| Edward Willis Barnett | United States | Fencing | 1928 Summer | |
| John Barnett | Australasia | Rugby | 1908 Summer | |
| Kevin Barnett | United States | Volleyball | 2000 Summer, 2004 Summer | |
| Madeleine Barnett | Australia | Diving | 1976 Summer | |
| Melville Barnett | Great Britain | Weightlifting | 1952 Summer | |
| Mike Barnett | United States | Athletics | 1992 Summer | |
| Reg Barnett | Great Britain | Track cycling | 1968 Summer | |
| Richard Barnett | Shooting | 1908 Summer | |
| Steven Barnett | United States | Water polo | 1968 Summer, 1972 Summer | |
| Steven Barnett | Australia | Diving | 2004 Summer | |
| Tara-Sue Barnett | Jamaica | Athletics | 2016 Summer | |
| Tony Barnett | Australia | Basketball | 1976 Summer | |
| Wes Barnett | United States | Weightlifting | 1992 Summer, 1996 Summer | |
| Helen Barnett-Burkart | Great Britain, Switzerland | Athletics | 1984 Summer, 1992 Summer | |
| Enrico Barney | Argentina | 1968 Summer | |
| Troy Barnhart Jr. | United States | Water polo | 1996 Summer | |
| Tomasz Barniak | Poland | Canoe sprint | 2020 Summer | |
| Romain Barnier | France | Swimming | 2000 Summer, 2004 Summer | |
| Andrea Barnó | Spain | Handball | 2012 Summer | |
| Henri Alphonse Barnoin | France | Art competitions | 1928 Summer | |
| Ricky Barnor | Ghana | Boxing | 1972 Summer | |
| Harry Barnsley | Great Britain | Rowing | 1924 Summer | |
| Angela Barnwell | Swimming | 1952 Summer | |
| Albert Barodet | France | Artistic gymnastics | 1900 Summer | |
| Imane El Barodi [ Wikidata ] | Morocco | Swimming | 2024 Summer | |
| Lazăr Baroga | Romania | Weightlifting | 1960 Summer, 1964 Summer | |
| Alizée Baron | France | Freestyle skiing | 2014 Winter, 2018 Winter | |
| Bengt Baron | Sweden | Swimming | 1980 Summer, 1984 Summer | |
| Emile Baron | South Africa | Football | 2000 Summer | |
| McQuin Baron | United States | Water polo | 2016 Summer | |
| Marie Baron | Netherlands | Swimming, Diving | 1924 Summer, 1928 Summer | |
| Orit Bar-On | Israel | Judo | 2000 Summer | |
| R. G. P. Baron [ Wikidata ] | France | Art competitions | 1924 Summer | |
| Mimi Barona | Ecuador | Surfing | 2020 Summer | |
| Bruno Baronchelli | France | Football | 1976 Summer | |
| Ciriaco Baronda | Philippines | Athletics | 1956 Summer | |
| Barbara Barone | Chile | Equestrian jumping | 1972 Summer | |
| Carmelo Barone | Italy | Road cycling | 1976 Summer | |
| Marian Barone | United States | Artistic gymnastics | 1948 Summer, 1952 Summer | |
| Ottavio Barone | Italy | Boxing | 2000 Summer | |
| Santiago Baronetto | Argentina | Handball | 2020 Summer | |
| Angela Baroni | Italy | Sailing | 2004 Summer | |
| Gianmario Baroni | Ice hockey | 1936 Winter | |
| Roberto Baronio | Football | 2000 Summer | |
| Alexander Baronjan | Germany | Sailing | 2000 Summer | |
| Simone Barontini | Italy | Athletics | 2024 Summer | |
| András Baronyi | Hungary | Swimming, Athletics | 1908 Summer, 1912 Summer | |
| Milan Baroš | Czech Republic | Football | 2000 Summer | |
| Raoul Barouch | Tunisia | Fencing | 1960 Summer | |
| Hossam El-Baroudi | Egypt | Water polo | 1968 Summer | |
| François Barouh | France | Canoe sprint | 1980 Summer, 1984 Summer | |
| Thomas Baroukh | Rowing | 2012 Summer, 2016 Summer | |
| Khasan Baroev | Russia | Wrestling | 2004 Summer, 2008 Summer, 2012 Summer | |
| Umberto Barozzi | Italy | Athletics | 1908 Summer | |
| Laura Barquero | Spain | Figure skating | 2022 Winter | |
| Rafael Barquero | Costa Rica | Judo | 1964 Summer | |
| Brad Barquist | United States | Athletics | 1996 Summer | |
| Beth Barr | Swimming | 1988 Summer | |
| Davey Barr | Canada | Freestyle skiing | 2010 Winter | |
| Jessie Barr | Ireland | Athletics | 2012 Summer | |
| Kirsty Barr | Great Britain | Shooting | 2020 Summer | |
| Oslen Barr | Guyana | Athletics | 1984 Summer, 1988 Summer | |
| Paige Barr | Australia | Rowing | 2024 Summer | |
| Peter Barr | Canada | 1972 Summer | |
| Thomas Barr | Ireland | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Jean-Pierre Barra | Belgium | 1960 Summer | |
| Guy Barrabino | France | Fencing | 1960 Summer | |
| Richard Barraclough | Great Britain | Wrestling | 1972 Summer | |
| Abdelaziz Barrada | Morocco | Football | 2012 Summer | |
| Eduardo Barragán | Colombia | Boxing | 1972 Summer | |
| Enrique Barragán | Uruguay | Shooting | 1968 Summer | |
| André Barrais | France | Basketball | 1948 Summer | |
| Nagib Barrak | Lebanon | Alpine skiing | 1968 Winter | |
| Émile Barral | Monaco | Athletics, Sailing | 1920 Summer, 1924 Summer, 1928 Summer | |
| Joe Barral | Shooting | 1968 Summer, 1972 Summer, 1976 Summer | |
| Alicia Barrancos | Argentina | Swimming | 1996 Summer | |
| Jean-Pascal Barraque | France | Rugby sevens | 2024 Summer | |
| Gérard Barras | Switzerland | Athletics | 1960 Summer | |
| Romain Barras | France | 2004 Summer, 2008 Summer | |
| Tom Barras | Great Britain | Rowing | 2020 Summer, 2024 Summer | |
| Tom Barrasso | United States | Ice hockey | 2002 Winter | |
| Bronte Barratt | Australia | Swimming | 2008 Summer, 2012 Summer, 2016 Summer | |
| Jordyn Barratt | United States | Skateboarding | 2020 Summer | |
| Tomas Barraza | Chile | Fencing | 1936 Summer | |
| Alexandra Barré | Canada | Canoe sprint | 1984 Summer | |
| Denis Barré | 1972 Summer, 1976 Summer | |
| Jean Barre | 1968 Summer, 1972 Summer | |
| Mylanie Barré | 2004 Summer, 2008 Summer | |
| Odile Barre | France | Sailing | 1992 Summer | |
| Pascal Barré | Athletics | 1980 Summer | |
| Patrick Barré | 1980 Summer, 1984 Summer | |
| Stéphane Barré | Rowing | 1996 Summer | |
| Jacques Barreau | Football | 1952 Summer | |
| Manny Barreda | Mexico | Baseball | 2020 Summer | |
| Ángeles Barreiro | Spain | Athletics | 1992 Summer | |
| Ernesto Barreiros | Argentina | Field hockey | 1972 Summer | |
| Onán Barreiros | Spain | Sailing | 2008 Summer, 2012 Summer | |
| Hermann Barrelet | France | Rowing | 1900 Summer | |
| William Barrell [ Wikidata ] | Great Britain | Artistic gymnastics | 1908 Summer | |
| Óscar Barrena | Spain | Field hockey | 1996 Summer | |
| Hernán Barreneche | Colombia | Athletics | 1972 Summer | |
| Alejandro Barrenechea | Spain | Artistic gymnastics | 2000 Summer, 2004 Summer | |
| Claudia Barrenechea | Chile | Biathlon | 2002 Winter | |
| Miguel Barrenechea | Mexico | Shooting | 1968 Summer | |
| Rafael Barreno | Venezuela | Wrestling | 2000 Summer, 2004 Summer | |
| Cesáreo Barrera | Spain | Boxing | 1960 Summer | |
| Domingo Barrera | 1964 Summer | |
| Humberto Barrera | United States | 1960 Summer | |
| Karla Barrera | Puerto Rico | Sailing | 2004 Summer | |
| Sixto Barrera | Peru | Wrestling | 2008 Summer | |
| Juan Carlos Barreras | Cuba | Water polo | 1992 Summer | |
| Augusto Barreto | Portugal | Fencing | 1952 Summer | |
| Carlos Barreto | Venezuela | Boxing | 1996 Summer | |
| Diego Barreto | Paraguay | Football | 2004 Summer | |
| Édgar Barreto | 2004 Summer | |
| Herman Barreto | Venezuela | Shooting | 1952 Summer | |
| Marcos Barreto | Mexico | Athletics | 1988 Summer | |
| Nuno Barreto | Portugal | Sailing | 1996 Summer, 2000 Summer, 2004 Summer | |
| Ysis Barreto | Venezuela | Judo | 2008 Summer | |
| Alan Barrett | Great Britain | Rowing | 1936 Summer | |
| Beloved Promise | United States | Athletics | 2012 Summer | |
| Casey Barrett | Canada | Swimming | 1996 Summer | |
| Craig Barrett | New Zealand | Athletics | 1996 Summer, 2000 Summer, 2004 Summer | |
| Danny Barrett | United States | Rugby sevens | 2016 Summer, 2020 Summer | |
| Edward Barrett | Great Britain | Athletics, Tug of war, Wrestling | 1908 Summer, 1912 Summer | |
| Francie Barrett | Ireland | Boxing | 1996 Summer | |
| Frederick Whitfield Barrett | Great Britain | Polo | 1920 Summer, 1924 Summer | |
| Gerard Barrett | Australia | Athletics | 1980 Summer | |
| Henry Barrett | Great Britain | 1908 Summer, 1912 Summer | |
| Herbert Roper Barrett | Tennis | 1908 Summer, 1912 Summer | |
| James Barrett | Athletics | 1908 Summer | |
| Jeremy Barrett | United States | Figure skating | 2010 Winter | |
| John Barrett | Canada | Volleyball | 1984 Summer | |
| Ken Barrett | United States | Field hockey | 1984 Summer | |
| Kimberly Barrett | Jamaica | Athletics | 2004 Summer | |
| Lane Barrett | Canada | Freestyle skiing | 1992 Winter | |
| Mike Barrett | United States | Basketball | 1968 Summer | |
| Peter Barrett | Sailing | 1960 Summer, 1964 Summer, 1968 Summer | |
| RJ Barrett | Canada | Basketball | 2024 Summer | |
| Rory Barrett | New Zealand | Weightlifting | 1976 Summer | |
| Rowan Barrett | Canada | Basketball | 2000 Summer | |
| Stephanie Barrett | Archery | 2020 Summer | |
| Stewart Barrett | Ireland | Water polo | 1924 Summer | |
| Tim Barrett | Bahamas | Athletics | 1968 Summer, 1972 Summer | |
| Hugo Barrette | Canada | Track cycling | 2016 Summer, 2020 Summer | |
| Francisco Barretto Júnior | Brazil | Artistic gymnastics | 2016 Summer, 2020 Summer | |
| Rafael Barretto | Philippines | Basketball | 1956 Summer | |
| Jean Barrez | France | Art competitions | 1928 Summer | |
| Maggie Barrie | Sierra Leone | Athletics | 2020 Summer | |
| Robert Barrie | Australia | Modern pentathlon | 1972 Summer, 1980 Summer | |
| Armando Barrientos | Cuba | Fencing | 1948 Summer | |
| Claudio Barrientos | Chile | Boxing | 1956 Summer | |
| Hernando Barrientos | Colombia | Shooting | 1992 Summer | |
| Isaac Barrientos | Puerto Rico | Boxing | 1984 Summer | |
| José Barrientos | Cuba | Athletics | 1928 Summer | |
| Marcelo Barrientos | Chile | 1996 Summer | |
| Adrien Barrier | France | Wrestling | 1912 Summer | |
| Jim Barrier | United States | Alpine skiing | 1960 Winter | |
| Mark Anthony Barriga | Philippines | Boxing | 2012 Summer | |
| Armando Barriguete | Mexico | Equestrian eventing | 1932 Summer | |
| Jim Barrineau | United States | Athletics | 1976 Summer | |
| Reto Barrington | Canada | Alpine skiing | 1972 Winter | |
| John Barrington-Ward | Great Britain | Sailing | 1952 Summer | |
| Andrés Barrio [ Wikidata ] | Spain | 2024 Summer | |
| Sonia Barrio | Field hockey | 1992 Summer, 1996 Summer, 2000 Summer | |
| Luis Barrionuevo | Argentina | Athletics | 1972 Summer | |
| Noel Barrionuevo | Field hockey | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Tomás Barrios Vera | Chile | Tennis | 2020 Summer, 2024 Summer | |
| Anriquelis Barrios | Venezuela | Judo | 2020 Summer, 2024 Summer | |
| Arturo Barrios | Mexico | Athletics | 1988 Summer, 1992 Summer | |
| José Antonio Barrios | Spain | Football | 1968 Summer | |
| Juan Luis Barrios | Mexico | Athletics | 2008 Summer, 2012 Summer | |
| Laura Barrios | Spain | Field hockey | 2020 Summer, 2024 Summer | |
| Pablo Barrios | Venezuela | Equestrian jumping | 2008 Summer, 2016 Summer | |
| Pablo Barrios | Spain | Football | 2024 Summer | |
| Sara Barrios | Field hockey | 2024 Summer | |
| Talía Barrios | Peru | Swimming | 2000 Summer | |
| Wilmar Barrios | Colombia | Football | 2016 Summer | |
| Yarelys Barrios | Cuba | Athletics | 2008 Summer, 2012 Summer | |
| Tomás Barris | Spain | 1960 Summer | |
| Juan Barro | Swimming | 1980 Summer | |
| Gonzalo Barroilhet | Chile | Athletics | 2008 Summer, 2012 Summer | |
| Andrew Barron | Canada | Speed skating | 1972 Winter, 1976 Winter | |
| Blanca Barrón | Mexico | Swimming | 1956 Summer, 1960 Summer | |
| Brett Barron | United States | Judo | 1984 Summer | |
| Carlos Barron | Mexico | Volleyball | 1968 Summer | |
| Harold Barron | United States | Athletics | 1920 Summer | |
| Peter-James Barron | Ireland | Cross country skiing | 2010 Winter | |
| Scott Barron | Tennis | 1996 Summer | |
| Trevor Barron | United States | Athletics | 2012 Summer | |
| Lucianne Barroncas | Brazil | Water polo | 2016 Summer | |
| Bernardo Barrondo | Guatemala | Athletics | 2020 Summer | |
| Érick Barrondo | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| José Alejandro Barrondo | 2020 Summer, 2024 Summer | |
| Ana Barros | Portugal | Swimming | 1992 Summer | |
| Ana Barros | Road cycling | 1996 Summer | |
| Ana Barros | Angola | Handball | 2012 Summer | |
| Ana Lúcia Barros | Brazil | Volleyball | 1988 Summer, 1992 Summer | |
| Bruno de Barros | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| César Barros | Chile | Fencing | 1936 Summer | |
| Fortunato de Barros | Brazil | 1948 Summer | |
| Jorge de Barros | Athletics | 1956 Summer | |
| Laudelino Barros | Boxing | 2000 Summer | |
| Leila Barros | Volleyball | 1992 Summer, 1996 Summer, 2000 Summer | |
| Maria Coelho de Barros [ Wikidata ] | Portugal | Shooting | 2024 Summer | |
| Marisa Barros | Athletics | 2008 Summer, 2012 Summer | |
| Mílton Barros | Angola | Basketball | 2008 Summer | |
| Patrick de Barros | Portugal | Sailing | 1988 Summer | |
| Pedro Barros | Brazil | Skateboarding | 2020 Summer, 2024 Summer | |
| Winglitton Rocha Barros | Handball | 1996 Summer | |
| Zoila Barros | Cuba | Volleyball | 2004 Summer, 2008 Summer | |
| Jaime Barroso | Spain | Athletics | 1992 Summer, 1996 Summer | |
| Luís Barroso | Portugal | 1984 Summer, 1988 Summer, 1992 Summer | |
| Manuel Barroso | Rowing | 1972 Summer | |
| Manuel Barroso | Modern pentathlon | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Philippe Barroso | France | Alpine skiing | 1976 Winter | |
| Aissam Barroudi | Morocco | Football | 2000 Summer | |
| Aminata Barrow | The Gambia | Swimming | 2024 Summer | |
| Cordell Barrow | Trinidad and Tobago | Sailing | 1964 Summer | |
| Dan Barrow | United States | Rowing | 1936 Summer | |
| Rawle Barrow | Trinidad and Tobago | Sailing | 1964 Summer | |
| Sarah Barrow | Great Britain | Diving | 2012 Summer, 2016 Summer | |
| Mike Barrowman | United States | Swimming | 1988 Summer, 1992 Summer | |
| Ian Barrows | Sailing | 2024 Summer | |
| Jim Barrows | Alpine skiing | 1968 Winter | |
| Thomas Barrows III | Virgin Islands, United States | Sailing | 2008 Summer, 2016 Summer | |
| Jay Barrs | United States | Archery | 1988 Summer, 1992 Summer | |
| David Barrufet | Spain | Handball | 1992 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Luis Barruffa | Uruguay | Track cycling | 1968 Summer | |
| Esther Barrugués | Andorra | Shooting | 2016 Summer | |
| Aissatou Barry | Guinea | Swimming | 2000 Summer | |
| Canyon Barry | United States | 3x3 basketball | 2024 Summer | |
| Clifford Barry | Canada | Water polo | 1972 Summer, 1976 Summer | |
| Damion Barry | Trinidad and Tobago | Athletics | 2000 Summer | |
| Dede Barry | United States | Road cycling | 2004 Summer | |
| Djene Barry | Guinea | Swimming | 2008 Summer | |
| John Burke Barry | United States | Equestrian dressage, Equestrian eventing, Equestrian jumping | 1920 Summer, 1924 Summer | |
| John Joe Barry | Ireland | Athletics | 1948 Summer | |
| Kevin Barry | Equestrian jumping | 1956 Summer | |
| Kevin Barry | New Zealand | Boxing | 1984 Summer | |
| Mackenzie Barry | Football | 2024 Summer | |
| Mamadou Barry [ Wikidata ] | Guinea | Athletics | 2012 Summer | |
| Mariama Dalanda Barry | Taekwondo | 2008 Summer | |
| Mark Barry | Great Britain | Track cycling | 1984 Summer | |
| Maurice Barry [ Wikidata ] | United States | Artistic gymnastics | 1904 Summer | |
| Michael Barry | Canada | Wrestling | 1976 Summer | |
| Michael Barry | Road cycling | 1996 Summer, 2004 Summer, 2008 Summer | |
| Peter Barry | Equestrian eventing | 2012 Summer | |
| Raymond Barry | Australia | Wrestling | 1972 Summer | |
| Rhona Barry | Ireland | Shooting | 1996 Summer | |
| Steeve Barry | France | Rugby sevens | 2016 Summer | |
| Steve Barry | Great Britain | Athletics | 1984 Summer | |
| Trevor Barry | Bahamas | 2012 Summer, 2016 Summer | |
| William Barry | Ireland | Football | 1948 Summer | |
| William L. Barry | Great Britain | Rowing | 1964 Summer | |
| Kay Barsdell | Figure skating | 1976 Winter | |
| Anahit Barseghyan | Armenia | Swimming | 2012 Summer | |
| Artur Barseghyan | 2020 Summer, 2024 Summer | |
| Hovhannes Barseghyan | Weightlifting | 1996 Summer | |
| Mutaz Barsham | Qatar | Athletics | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Kinga Barsi | Hungary | Alpine skiing | 1998 Winter | |
| László Barsi | Athletics | 1928 Summer | |
| László Barsi | Weightlifting | 1988 Summer, 1992 Summer | |
| Franz Barsicke | Germany | Athletics | 1936 Summer | |
| Jacob Barsøe | Denmark | Rowing | 2012 Summer, 2016 Summer | |
| Sally Barsosio | Kenya | Athletics | 1996 Summer, 2000 Summer, 2004 Summer | |
| Dino Barsotti | Italy | Rowing | 1932 Summer, 1936 Summer | |
| Nadine Barsoum [ Wikidata ] | Egypt | Artistic swimming | 2024 Summer | |
| Dmitri Barsuk | Russia | Beach volleyball | 2008 Summer, 2016 Summer | |
| Tatiana Barsuk | Shooting | 2016 Summer | |
| Yulia Barsukova | Rhythmic gymnastics | 2000 Summer | |
| Adrien Bart | France | Canoe sprint | 2016 Summer, 2020 Summer, 2024 Summer | |
| Robert Bart | Athletics | 1952 Summer | |
| Alexander Bárta | Czechoslovakia | Fencing | 1924 Summer | |
| Alexander Barta | Germany | Ice hockey | 2006 Winter | |
| Franz Barta | Austria | Boxing | 1924 Summer | |
| István Barta | Hungary | Water polo | 1924 Summer, 1928 Summer, 1932 Summer | |
| Jan Bárta | Czech Republic | Road cycling | 2012 Summer, 2016 Summer | |
| Nóra Barta | Hungary | Diving | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Vladimír Bárta | Czechoslovakia | Judo | 1980 Summer | |
| Zdeněk Bárta | Bohemia | Fencing | 1912 Summer | |
| Lenka Bartáková | Czech Republic | Basketball | 2012 Summer | |
| Marie Bartáková | Czechoslovakia | Rowing | 1976 Summer | |
| Marcello Bartalini | Italy | Road cycling | 1984 Summer | |
| Kálmán Bartalis | Hungary | Polo | 1936 Summer | |
| Béla Bartalos | Handball | 1972 Summer, 1976 Summer, 1980 Summer | |
| Caroline Bartasek | Australia | Taekwondo | 2004 Summer | |
| Jolanta Bartczak | Poland | Athletics | 1988 Summer | |
| Ľuboš Bartečko | Slovakia | Ice hockey | 2002 Winter, 2006 Winter, 2010 Winter | |
| Tomáš Bartek | Czechoslovakia | Handball | 1988 Summer | |
| Danka Barteková | Slovakia | Shooting | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Robin Bartel | Canada | Ice hockey | 1984 Winter | |
| Yan Bartelemí | Cuba | Boxing | 2004 Summer | |
| Beatrice Bartelloni | Italy | Track cycling | 2016 Summer | |
| Ralf Bartels | Germany | Athletics | 2004 Summer, 2012 Summer | |
| Tineke Bartels | Netherlands | Equestrian dressage | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Wolfgang Bartels | Germany | Alpine skiing | 1964 Winter | |
| Konrad Bartelski | Great Britain | 1972 Winter, 1976 Winter, 1980 Winter | |
| Amos Bartelsmeyer | Germany | Athletics | 2020 Summer | |
| Herb Barten | United States | 1948 Summer | |
| Leonid Bartenyev | Soviet Union | 1956 Summer, 1960 Summer | |
| Luigi Bartesaghi | Canada | Road cycling | 1960 Summer | |
| Krisztián Bártfai | Hungary | Canoe sprint | 1992 Summer, 1996 Summer, 2000 Summer | |
| Carmen Barth | United States | Boxing | 1932 Summer | |
| Claudia Barth | Germany | Rowing | 2000 Summer | |
| Elke Barth | West Germany | Athletics | 1976 Summer | |
| Erwin Barth | Germany | Art competitions | 1928 Summer | |
| Friederike Barth | Field hockey | 2000 Summer | |
| Heidrun Barth | West Germany | Rowing | 1984 Summer | |
| Hugo Barth | Germany | Athletics | 1928 Summer | |
| Jürgen Barth | West Germany | Track cycling | 1968 Summer, 1972 Summer | |
| Manfred Barth | Archery | 1988 Summer | |
| Paul Barth | Switzerland | Fencing | 1952 Summer | |
| Paul Barth | West Germany | Judo | 1972 Summer | |
| Philip Barth | Germany | Sailing | 2000 Summer | |
| René Barth | Switzerland | Handball | 1984 Summer, 1996 Summer | |
| Thomas Barth | East Germany | Road cycling | 1980 Summer | |
| Gyula Bartha | Romania | Volleyball | 1972 Summer | |
| Iosif Bartha | Football | 1924 Summer | |
| Károly Bartha | Hungary | Swimming | 1924 Summer | |
| László Bartha | Athletics | 1948 Summer | |
| Levente Bartha | Romania | Bobsleigh | 2006 Winter, 2018 Winter | |
| Magdolna Bartha | Hungary | Cross country skiing | 1960 Winter | |
| Rezső von Bartha | Fencing, Modern pentathlon | 1936 Summer | |
| Bianka Bartha-Kéri | Athletics | 2020 Summer | |
| Barbara Barthel | West Germany | Cross country skiing | 1968 Winter | |
| Danilo Barthel | Germany | Basketball | 2020 Summer | |
| Josy Barthel | Luxembourg | Athletics | 1948 Summer, 1952 Summer, 1956 Summer | |
| Mona Barthel | Germany | Tennis | 2012 Summer, 2020 Summer | |
| Timo Barthel | Diving | 2020 Summer, 2024 Summer | |
| Zhenqi Barthel | Table tennis | 2008 Summer | |
| Laure Barthélémy | France | Cross country skiing | 2010 Winter | |
| Riccardo Barthelemy | Italy | Art competitions | 1912 Summer | |
| Valérie Barthelemy | Belgium | Triathlon | 2020 Summer | |
| Wolfgang Barthels | Germany | Football | 1964 Summer | |
| Anne-Sophie Barthet | France | Alpine skiing | 2006 Winter, 2010 Winter, 2014 Winter | |
| Jørgen Barth-Jørgensen | Norway | Weightlifting | 1952 Summer | |
| Sebastian Barthold | Handball | 2024 Summer | |
| Luana Bartholo | Brazil | Rowing | 2012 Summer | |
| Fritz Bartholomae | Germany | 1912 Summer | |
| Willi Bartholomae | 1912 Summer | |
| William Bartholomae Jr. | United States | Sailing | 1936 Summer | |
| Nathan Bartholomay | Figure skating | 2014 Winter | |
| Bruno Bartholome | Germany | Athletics | 1960 Summer | |
| Bart Bartholomew | United States | Weightlifting | 1968 Summer | |
| Jacinta Bartholomew | Grenada | Athletics | 1984 Summer | |
| Ken Bartholomew | United States | Speed skating | 1948 Winter | |
| Trish Bartholomew | Grenada | Athletics | 2008 Summer | |
| Anton Barticevic | Chile | 1936 Summer | |
| Robert Bartko | Germany | Track cycling | 1996 Summer, 2000 Summer, 2004 Summer | |
| Šimon Bartko | Slovakia | Biathlon | 2018 Winter, 2022 Winter | |
| Beata Bartków-Kwiatkowska | Poland | Shooting | 2012 Summer | |
| Frank Bartkus | United States | Football | 1936 Summer | |
| Franz Bartl | Austria | Handball | 1936 Summer | |
| Johann Bartl | Czechoslovakia | Athletics | 1928 Summer | |
| Christopher Bartle | Great Britain | Equestrian dressage | 1984 Summer | |
| Hotse Bartlema | Netherlands | Rowing | 1936 Summer | |
| Don Bartlett | Canada | Curling | 2002 Winter | |
| Harold Bartlett [ Wikidata ] | United States | Shooting | 1912 Summer | |
| Sir David Bartlett, 3rd Baronet | Great Britain | Fencing | 1936 Summer | |
| Jimmy Bartlett | Canada | Athletics | 1936 Summer | |
| Laura Bartlett | Great Britain | Field hockey | 2008 Summer, 2012 Summer | |
| Lee Bartlett | United States | Athletics | 1928 Summer, 1932 Summer, 1936 Summer | |
| Terry Bartlett | Great Britain | Artistic gymnastics | 1984 Summer, 1988 Summer, 1992 Summer | |
| Tony Bartlett | Fencing | 1988 Summer, 1992 Summer | |
| Jane Bartle-Wilson | Equestrian dressage | 1984 Summer | |
| Chris Bartley | Rowing | 2012 Summer, 2016 Summer | |
| Karayme Bartley | Jamaica | Athletics | 2020 Summer | |
| Charles Bartliff | United States | Football | 1904 Summer | |
| Edmund Bartłomiejczyk | Poland | Art competitions | 1932 Summer | |
| Michiel Bartman | Netherlands | Rowing | 1996 Summer, 2000 Summer, 2004 Summer | |
| Zbigniew Bartman | Poland | Volleyball | 2012 Summer | |
| Bartłomiej Bartnicki | Wrestling | 2004 Summer, 2008 Summer | |
| Günther Bartnick | East Germany | Biathlon | 1972 Winter | |
| Tomasz Bartnik | Poland | Shooting | 2020 Summer, 2024 Summer | |
| Wojciech Bartnik | Boxing | 1992 Summer, 1996 Summer, 2000 Summer | |
| Joe Bartoch | Canada | Swimming | 2008 Summer, 2012 Summer | |
| László Bartók | Hungary | Rowing | 1928 Summer | |
| Tilen Bartol | Slovenia | Ski jumping | 2018 Winter | |
| Tianna Bartoletta | United States | Athletics | 2012 Summer, 2016 Summer | |
| Michele Bartoli | Italy | Road cycling | 1996 Summer, 2000 Summer | |
| Frank Bartolillo | Australia | Fencing | 2004 Summer | |
| Erica Bartolina | United States | Athletics | 2008 Summer | |
| Enzo Bartolini | Italy | Rowing | 1936 Summer | |
| Luigi Bartolini | Art competitions | 1948 Summer | |
| Nello Bartolini | Athletics | 1928 Summer, 1932 Summer | |
| Nicola Bartolini | Artistic gymnastics | 2024 Summer | |
| Martina Bartolomei [ Wikidata ] | Shooting | 2024 Summer | |
| Abbão Bartolomeu | Angola | Judo | 1988 Summer | |
| Christopher Bartolone | Italy | Ice hockey | 1998 Winter | |
| Eddy Bartolozzi | Venezuela | Wrestling | 2000 Summer | |
| Antonín Bartoň | Czechoslovakia | Cross country skiing, Nordic combined, Ski jumping | 1932 Winter | |
| Bruce Barton | United States | Canoe sprint | 1976 Summer | |
| Carrie Barton | Artistic swimming | 2000 Summer | |
| Christopher Barton | Great Britain | Rowing | 1948 Summer | |
| Clive Barton | Australia | Shooting | 2000 Summer, 2012 Summer | |
| Dick Barton | South Africa | Boxing | 1932 Summer | |
| Frederick Barton | Great Britain | Modern pentathlon | 1924 Summer | |
| George Barton | Australia | Shooting | 2004 Summer, 2008 Summer | |
| Greg Barton | United States | Canoe sprint | 1984 Summer, 1988 Summer, 1992 Summer | |
| Jim Barton | Sailing | 1996 Summer | |
| Karl Barton | Great Britain | Track cycling | 1960 Summer, 1964 Summer | |
| Rosalyn Barton | Australia | Diving | 1956 Summer | |
| Slavomír Bartoň | Czechoslovakia | Ice hockey | 1952 Winter, 1956 Winter | |
| Jitka Bartoničková | Czech Republic | Athletics | 2012 Summer | |
| Kateřina Bartoňová | Basketball | 2012 Summer | |
| Dean Barton-Smith | Australia | Athletics | 1992 Summer | |
| Erzsébet Bartos | Hungary | 1960 Summer, 1964 Summer | |
| Jan Zdeněk Bartoš | Czechoslovakia | Art competitions | 1948 Summer | |
| Magdalena Bartoș | Romania | Fencing | 1976 Summer | |
| Heinrich Bartosch | Austria | Shooting | 1924 Summer | |
| Peter Bartosiewicz | Czechoslovakia | Figure skating | 1964 Winter, 1968 Winter | |
| Alison Bartosik | United States | Artistic swimming | 2004 Summer | |
| Jan Bartosik | Poland | Sailing | 1980 Summer | |
| Alena Bartošová | Czechoslovakia | Cross country skiing | 1972 Winter, 1976 Winter | |
| Joanna Bartosz | Poland | Artistic gymnastics | 1972 Summer | |
| Michał Bartoszak | Athletics | 2004 Summer | |
| Danuta Bartoszek | Canada | 1996 Summer | |
| Włodzimierz Bartoszewicz | Poland | Art competitions | 1936 Summer | |
| Daniela Bártová | Czechoslovakia, Czech Republic | Artistic gymnastics, Athletics | 1992 Summer, 2000 Summer | |
| Heidemarie Bártová | Czechoslovakia | Diving | 1980 Summer, 1992 Summer | |
| Dušan Bartovič | Football | 1968 Summer | |
| Milan Bartovič | Slovakia | Ice hockey | 2014 Winter | |
| Jocelyn Bartram | Australia | Field hockey | 2024 Summer | |
| John Bartram | Athletics | 1948 Summer | |
| Walter Bartram | Germany | Polo | 1936 Summer | |
| Sergio Bartrina | Spain | Snowboarding | 1998 Winter | |
| Christopher Bartsch | Germany | Curling | 2014 Winter | |
| Michelle Bartsch-Hackley | United States | Volleyball | 2020 Summer | |
| Peter Bärtschi [ Wikidata ] | Switzerland | Swimming | 1960 Summer | |
| Jan Bártů | Czechoslovakia | Modern pentathlon | 1976 Summer, 1980 Summer | |
| Karel Bártů | 1948 Summer | |
| László Bartucz | Hungary | Handball | 2024 Summer | |
| Oskars Bārtulis | Latvia | Ice hockey | 2010 Winter, 2014 Winter | |
| Jan Bartůněk | Czechoslovakia | Canoe sprint | 1992 Summer | |
| Miroslav Bartůšek | Swimming | 1948 Summer | |
| Saskia Bartusiak | Germany | Football | 2016 Summer | |
| Vincas Bartuška | Lithuania | 1924 Summer | |
| Ashleigh Barty | Australia | Tennis | 2020 Summer | |
| Jenny Bartz | United States | Swimming | 1972 Summer | |
| Randy Bartz | Short track speed skating | 1994 Winter | |
| Morea Baru | Papua New Guinea | Weightlifting | 2016 Summer, 2020 Summer, 2024 Summer | |
| Alberto Barucco | Argentina | Athletics | 1928 Summer | |
| Andreas Barucha | Germany | Bobsleigh | 2010 Winter | |
| Stefan Barucha | 2002 Winter | |
| Alain Barudoni | Switzerland | Fencing | 1972 Summer | |
| Anja Barugh | New Zealand | Freestyle skiing | 2022 Winter | |
| Sławomir Barul | Poland | Cycling mountain bike | 1996 Summer | |
| Jadran Barut | Yugoslavia | Rowing | 1964 Summer | |
| Francesca Baruzzi Farriol | Argentina | Alpine skiing | 2022 Winter | |
| Abdullah Salim Al-Barwani | Oman | Boxing | 1988 Summer | |
| Bill Barwick | Australia | Athletics | 1932 Summer | |
| Franz Barwig | Austria | Art competitions | 1928 Summer | |
| Agata Barwińska [ Wikidata ] | Poland | Sailing | 2024 Summer | |
| Anita Bärwirth | Germany | Artistic gymnastics | 1936 Summer | |
| Adam Barwood | New Zealand | Alpine skiing | 2014 Winter, 2018 Winter | |
| Amy-Cathérine de Bary | Switzerland | Equestrian dressage | 1984 Summer | |
| Ivan Baryakov | Bulgaria | Cross country skiing | 2002 Winter, 2006 Winter | |
| Malin Baryard-Johnsson | Sweden | Equestrian jumping | 1996 Summer, 2000 Summer, 2004 Summer, 2016 Summer, 2020 Summer | |
| Kanstantsin Barycheuski | Belarus | Athletics | 2016 Summer | |
| Mariya Barykina | Russia | Ice hockey | 2002 Winter, 2006 Winter | |
| Olga Barysheva | Soviet Union | Basketball | 1976 Summer, 1980 Summer | |
| Varvara Barysheva | Russia | Speed skating | 1998 Winter, 2002 Winter, 2006 Winter | |
| Aleksandr Baryshnikov | Soviet Union | Athletics | 1972 Summer, 1976 Summer, 1980 Summer | |
| Anastasia Baryshnikova | Russia | Taekwondo | 2012 Summer, 2016 Summer | |
| Helmut Barysz | Poland | Swimming | 1936 Summer | |
| Enrique Barza [ Wikidata ] | Peru | Fencing | 1968 Summer, 1972 Summer | |
| Norbelis Bárzaga | Cuba | Shooting | 2000 Summer, 2004 Summer | |
| Andrea Barzagli | Italy | Football | 2004 Summer | |
| Serafim Barzakov | Bulgaria | Wrestling | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Khristo Barzanov | Cross country skiing | 1976 Winter, 1980 Winter, 1984 Winter | |
| Mansour Barzegar | Iran | Wrestling | 1972 Summer, 1976 Summer | |
| Aviv Barzelay | Israel | Swimming | 2020 Summer, 2024 Summer | |
| Sajjad Barzi | Iran | Wrestling | 2004 Summer | |
| Miguel Barzola | Argentina | Athletics | 2012 Summer | |
| Paulina Barzycka | Poland | Swimming | 2004 Summer, 2008 Summer | |
| Héctor Bas | Puerto Rico | Diving | 1968 Summer, 1972 Summer | |
| José Bas | Spain | Swimming | 1976 Summer | |
| Maurice Bas | France | Rowing | 1956 Summer | |
| Nesrin Baş | Turkey | Wrestling | 2024 Summer | |
| Noël Bas | France | Artistic gymnastics | 1900 Summer | |
| Ion Bașa | Romania | Ice hockey | 1968 Winter | |
| Marko Baša | Serbia and Montenegro | Football | 2004 Summer | |
| Silvano Basagni | Italy | Shooting | 1972 Summer, 1976 Summer, 1980 Summer | |
| Juan Ignacio Basaguren | Mexico | Football | 1968 Summer | |
| Birendra Basak | India | Water polo | 1952 Summer | |
| Joel Basaldúa | Peru | Wrestling | 1996 Summer | |
| Anna Basalkina | Russia | Sailing | 2000 Summer | |
| Josateki Basalusalu | Fiji | Judo | 1988 Summer | |
| Faisal al Basam | Saudi Arabia | Archery | 1984 Summer | |
| Sambiao Basanung | Philippines | Swimming | 1948 Summer, 1952 Summer | |
| Enes Başar | Turkey | Wrestling | 2024 Summer | |
| Hakkı Başar | 1992 Summer, 1996 Summer, 2000 Summer | |
| Azzedine Basbas | Algeria | Weightlifting | 1988 Summer, 1992 Summer, 1996 Summer | |
| Gabriella Bascelli | Italy | Rowing | 2004 Summer, 2008 Summer | |
| Michaela Baschin | Germany | Judo | 2008 Summer | |
| Jeremy Bascom | Guyana | Athletics | 2012 Summer | |
| Jaime Bascon | Bolivia | Alpine skiing | 1988 Winter | |
| Dimitri Bascou | France | Athletics | 2012 Summer, 2016 Summer | |
| Codie Bascue | United States | Bobsleigh | 2018 Winter | |
| Juan Bascuñán | Chile | Athletics | 1920 Summer | |
| Edgar Basel | Germany | Boxing | 1952 Summer, 1956 Summer | |
| Amy Baserga | Switzerland | Biathlon | 2022 Winter | |
| Tamerlan Bashaev | Russian Olympic Committee | Judo | 2020 Summer | |
| Bilal Basham | Bahrain | Handball | 2020 Summer | |
| James Basham | Great Britain | Boxing | 1924 Summer | |
| Anatoli Bashashkin | Soviet Union | Football | 1952 Summer, 1956 Summer | |
| Sattar Basheer | India | 1948 Summer | |
| John Bashford | Great Britain | Shooting | 1908 Summer | |
| Ndabili Bashingili | Botswana | Athletics | 2004 Summer, 2008 Summer | |
| Ahmed Mohamed El-Bashir | Sudan | Football | 1972 Summer | |
| Atif Bashir | Pakistan | Field hockey | 2000 Summer | |
| Daham Najim Bashir | Qatar | Athletics | 2008 Summer | |
| Ghulam Mustafa Bashir | Pakistan | Shooting | 2016 Summer, 2020 Summer, 2024 Summer | |
| Khalid Bashir | Field hockey | 1988 Summer, 1992 Summer | |
| Khamis Bashir | Kuwait | Handball | 1980 Summer | |
| Muhammad Bashir | Pakistan | Wrestling | 1960 Summer, 1964 Summer | |
| Muhammad Bashir | Swimming | 1952 Summer | |
| Muhammad Bashir | Weightlifting | 1956 Summer | |
| Muhammad Ahmed Bashir | Athletics | 1972 Summer | |
| Sayed Bashiri | Iran | Boxing | 1976 Summer | |
| Alibek Bashkaev | Russia | Judo | 2008 Summer | |
| Yuri Bashkatov | Soviet Union, Unified Team | Swimming | 1988 Summer, 1992 Summer | |
| Halina Bashlakova | Belarus | Modern pentathlon | 2004 Summer | |
| Aleksandr Bashminov | Russia | Basketball | 2000 Summer | |
| Jessica Bashor | Greece | Softball | 2004 Summer | |
| Lindsey Bashor | 2004 Summer | |
| Kayla Bashore Smedley | United States | Field hockey | 2008 Summer, 2012 Summer | |
| Anna Bashta | Azerbaijan | Fencing | 2020 Summer, 2024 Summer | |
| Clara Basiana | Spain | Artistic swimming | 2012 Summer | |
| Hana Basic | Australia | Athletics | 2020 Summer | |
| Karlo Bašić | Yugoslavia | Sailing | 1952 Summer | |
| Mirko Bašić | Handball | 1984 Summer, 1988 Summer | |
| Mirza Bašić | Bosnia and Herzegovina | Tennis | 2016 Summer | |
| Sonja Bašić | Croatia | Handball | 2012 Summer | |
| Tomislav Bašić | Sailing | 2004 Summer | |
| Andrzej Basik | Poland | Judo | 1988 Summer | |
| Adam Basil | Australia | Athletics | 2004 Summer | |
| Nikoloz Basilashvili | Georgia | Tennis | 2016 Summer, 2020 Summer | |
| Fabio Basile | Italy | Judo | 2016 Summer, 2020 Summer | |
| Gianluca Basile | Basketball | 2000 Summer, 2004 Summer | |
| Leonardo Basile | Taekwondo | 2008 Summer | |
| Enriqueta Basilio | Mexico | Athletics | 1968 Summer | |
| Ihar Basinski | Soviet Union, Belarus | Shooting | 1988 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Lulu Basinyi | Botswana | Athletics | 2000 Summer | |
| Rachid El Basir | Morocco | 1992 Summer, 1996 Summer | |
| Aliasker Başirow | Turkmenistan | Boxing | 2004 Summer, 2008 Summer | |
| Ahmed Abdul Basith | India | Sailing | 1972 Summer | |
| Kalle Bask | Finland | 2012 Summer | |
| Vasudevan Baskaran | India | Field hockey | 1976 Summer, 1980 Summer | |
| Estelle Baskerville | United States | Athletics | 1964 Summer, 1968 Summer | |
| Robin Baskerville | Great Britain | Diving | 1968 Summer | |
| John Baskfield | United States | Speed skating | 1988 Winter | |
| Yondonperenlein Baskhüü | Mongolia | Judo | 2020 Summer, 2024 Summer | |
| Tracy Baskin | United States | Athletics | 1988 Summer | |
| Gunta Baško | Latvia | Basketball | 2008 Summer | |
| Kemal Başkır [ Wikidata ] | Turkey | Weightlifting | 1976 Summer | |
| Dragica Basletić | Yugoslavia | Artistic gymnastics | 1948 Summer | |
| Giulio Basletta | Italy | Fencing | 1924 Summer, 1928 Summer | |
| Marios Basmatzian | Greece | 2004 Summer | |
| Arjun Kumar Basnet | Nepal | Athletics | 2008 Summer | |
| Krishna Bahadur Basnet | 1988 Summer | |
| Laxman Basnet | 1980 Summer | |
| Kudakwashe Basopo | Zimbabwe | Football | 2016 Summer | |
| Lyubov Basova | Ukraine | Track cycling | 2012 Summer, 2016 Summer, 2020 Summer | |
| Pauline Basquin | France | Equestrian dressage | 2024 Summer | |
| Mohamed Basri | Morocco | Wrestling | 1996 Summer | |
| Gina Mariam Bass Bittaye | The Gambia | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Raymond Bass | United States | Artistic gymnastics | 1932 Summer | |
| Valma Bass | Saint Kitts and Nevis | Athletics | 1996 Summer, 2000 Summer | |
| Christina Bassadone | Great Britain | Sailing | 2004 Summer, 2008 Summer | |
| Bakr Bassam | Egypt | Weightlifting | 1968 Summer | |
| Christian Bassedas | Argentina | Football | 1996 Summer | |
| Jean-Pierre Bassegela | Republic of the Congo | Athletics | 1972 Summer, 1980 Summer | |
| Pierre Van Basselaere | Belgium | Basketball | 1936 Summer | |
| Christian Bassemir | West Germany | Field hockey | 1984 Summer | |
| Russell Basser | Australia | Water polo | 1984 Summer | |
| Rémi Bassereau [ Wikidata ] | France | Beach volleyball | 2024 Summer | |
| Dominique Basset | Rowing | 1980 Summer | |
| Roger Basset | Tug of war | 1900 Summer | |
| Guilherme Basseto | Brazil | Swimming | 2020 Summer, 2024 Summer | |
| Carling Bassett-Seguso | Canada | Tennis | 1988 Summer | |
| Ekemini Bassey | Austria | Bobsleigh | 2018 Winter | |
| Ironbar Bassey | Nigeria | Weightlifting | 1984 Summer | |
| Patrick Bassey | 1984 Summer | |
| Lanny Bassham | United States | Shooting | 1972 Summer, 1976 Summer | |
| Giancarlo Bassi | Italy | Ice hockey | 1948 Winter | |
| Ray Bassil | Lebanon | Shooting | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Marc Bassingthwaighte | Namibia | Cycling mountain bike | 2012 Summer | |
| Marta Bassino | Italy | Alpine skiing | 2018 Winter, 2022 Winter | |
| Mohamed El-Bassiouni | Egypt | Water polo | 1968 Summer | |
| Mohamed El-Bassiouny | Handball | 2016 Summer | |
| Patrizia Bassis | Italy | Alpine skiing | 2002 Winter | |
| Trevor Bassitt | United States | Athletics | 2024 Summer | |
| Hans Bässler | Switzerland | Fencing | 1960 Summer | |
| Bautista Basso | Uruguay | Rugby sevens | 2024 Summer | |
| Gino Basso | Italy | Basketball | 1936 Summer | |
| Godofredo Basso | Cuba | Shooting | 1948 Summer | |
| Jean Bassomben | Cameroon | Boxing | 1972 Summer | |
| Corne Basson | South Africa | Shooting | 2000 Summer | |
| Jean Basson | Swimming | 2008 Summer, 2012 Summer | |
| Imad Bassou | Morocco | Judo | 2016 Summer | |
| Bruno Bassoul [ Wikidata ] | Lebanon | Swimming | 1972 Summer | |
| Dieter Bast | West Germany | Football | 1984 Summer | |
| Piotr Basta | Poland | Rowing | 1992 Summer, 1996 Summer, 2000 Summer | |
| Hanafy Bastan | Egypt | Football | 1948 Summer, 1952 Summer | |
| Vicky Bastarache | Canada | Softball | 2000 Summer | |
| Manuel Basté | Spain | Water polo | 1924 Summer | |
| Claudiu Baștea | Romania | Judo | 2000 Summer, 2004 Summer | |
| Walter Bastenie | Belgium | Ice hockey | 1936 Winter | |
| José Basterra | Spain | Field hockey | 2020 Summer, 2024 Summer | |
| Evert Bastet | Canada | Sailing | 1972 Summer, 1976 Summer, 1984 Summer | |
| István Básti | Hungary | Football | 1968 Summer | |
| Izaak Bastian | Bahamas | Swimming | 2020 Summer | |
| Marta Bastianelli | Italy | Road cycling | 2020 Summer | |
| Monica Bastiani | Basketball | 1992 Summer | |
| Werner Bastians | West Germany | Athletics | 1976 Summer | |
| Anders Bastiansen | Norway | Ice hockey | 2010 Winter, 2014 Winter, 2018 Winter | |
| Louis Bastien | France | Fencing, Track cycling | 1900 Summer | |
| Steve Bastien | United States | Athletics | 2020 Summer | |
| Guillaume Bastille | Canada | Short track speed skating | 2010 Winter | |
| Désiré Bastin | Belgium | Football | 1920 Summer, 1924 Summer | |
| Jules Bastin | Shooting | 1920 Summer | |
| Joseph Jastine | Field hockey | 1928 Summer | |
| Rodrigo Basto Junior | Portugal | Water polo | 1952 Summer | |
| António Basto | Swimming | 1964 Summer | |
| Joaquim Basto | Sailing | 1960 Summer, 1964 Summer | |
| Ferdinand Baston de Lariboisière | France | Equestrian driving | 1900 Summer | |
| Raffaele Bastoni | Italy | Canoe sprint | 1952 Summer | |
| Ulan Bastos Galinski | Brazil | Cycling mountain bike | 2024 Summer | |
| Mateus Nunes Bastos [ Wikidata ] | Canoe sprint | 2024 Summer | |
| Rodrigo Bastos | Shooting | 1988 Summer, 2004 Summer | |
| Yayuk Basuki | Indonesia | Tennis | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Leonardo Basurto | Mexico | Wrestling | 1952 Summer | |
| Saeed Basweidan | Yemen | Athletics | 1996 Summer | |
| Waldemar Baszanowski | Poland | Weightlifting | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| Ilona Bata | Hungary | Rowing | 1976 Summer, 1980 Summer | |
| Cristian Bățagă | Romania | Artistic gymnastics | 2012 Summer | |
| Polona Batagelj | Slovenia | Road cycling | 2012 Summer, 2016 Summer | |
| Arseniy Batahov | Ukraine | Football | 2024 Summer | |
| Dominique Bataille | France | Swimming | 1984 Summer | |
| Mathilde Bataille | Artistic gymnastics | 1928 Summer | |
| Matthieu Bataille | Judo | 2004 Summer | |
| Maria Batalova | Russian Olympic Committee | Ice hockey | 2018 Winter, 2022 Winter | |
| Joseph Batangdon | Cameroon | Athletics | 2000 Summer, 2004 Summer | |
| Uliana Batashova | Russian Olympic Committee | Modern pentathlon | 2020 Summer | |
| Susanna Batazzi | Italy | Fencing | 1976 Summer, 1980 Summer | |
| Enkhtamir Batbayar [ Wikidata ] | Mongolia | Swimming | 2024 Summer | |
| Vanduin Batbayar | Boxing | 1972 Summer | |
| Galsandorjiin Batbileg | 1980 Summer | |
| Colin Batch | Australia | Field hockey | 1984 Summer, 1988 Summer | |
| Brice Batchaya | Cameroon | Weightlifting | 2008 Summer | |
| Joseph Batchelder | United States | Sailing | 1964 Summer | |
| Erica Batchelor | Great Britain | Figure skating | 1956 Winter | |
| Jeff Batchelor | Canada | Snowboarding | 2010 Winter | |
| Stephen Batchelor | Great Britain | Field hockey | 1984 Summer, 1988 Summer, 1992 Summer | |
| Warner Batchelor | Australia | Boxing | 1956 Summer | |
| Richard Bate | Great Britain | Rowing | 1960 Summer | |
| Mengke Bateer | China | Basketball | 1996 Summer, 2000 Summer, 2004 Summer | |
| Petr Batěk | Czechoslovakia | Rowing | 1992 Summer | |
| Ray Bateman Jr. | United States | Luge | 1980 Winter, 1984 Winter | |
| Amanda Bateman | Australia | Rowing | 2020 Summer, 2024 Summer | |
| Doug Bateman | United States | Luge | 1984 Winter | |
| H. M. Bateman | Great Britain | Art competitions | 1928 Summer | |
| Phil Bateman | Road cycling | 1988 Summer | |
| Sarah Bateman | Iceland | Swimming | 2008 Summer, 2012 Summer | |
| Anders Båtemyr | Sweden | Rowing | 2000 Summer | |
| Badmaanyambuugiin Bat-Erdene | Mongolia | Judo | 1988 Summer, 1992 Summer, 2000 Summer | |
| Al Bates | United States | Athletics | 1928 Summer | |
| Evan Bates | Figure skating | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Jeremy Bates | Great Britain | Tennis | 1988 Summer | |
| Katherine Bates | Australia | Track cycling, Road cycling | 2004 Summer, 2008 Summer | |
| Michael Bates | United States | Athletics | 1992 Summer | |
| Orlando Bates | Barbados | Road cycling, Track cycling | 1972 Summer | |
| Suzie Bates | New Zealand | Basketball | 2008 Summer | |
| Vladimir Batez | Serbia and Montenegro | Volleyball | 1996 Summer, 2000 Summer | |
| Robert Bath | Australia | Boxing | 1956 Summer | |
| István Batházi | Hungary | Swimming | 1996 Summer, 2000 Summer | |
| Charlotte Bathe | Great Britain | Equestrian eventing | 1996 Summer | |
| Walter Bathe | Germany | Swimming | 1912 Summer | |
| Astan Bathily | Ivory Coast | Taekwondo | 2024 Summer | |
| Cheick Bathily | Mali | Football | 2004 Summer | |
| Djegui Bathily | Senegal | Judo | 2008 Summer | |
| Alberto Batignani | Uruguay | Water polo | 1936 Summer | |
| Borislav Batikov | Bulgaria | Modern pentathlon | 1980 Summer | |
| Bernard Batillat | France | Rowing | 1936 Summer | |
| Martina Batini | Italy | Fencing | 2020 Summer | |
| Slavcho Batinkov | Bulgaria | Cross country skiing | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter | |
| Yusup Batirmurzaev | Kazakhstan | Wrestling | 2020 Summer, 2024 Summer | |
| Adam Batirov | Bahrain | 2016 Summer | |
| Mavlet Batirov | Russia | 2004 Summer, 2008 Summer | |
| Batista | Brazil | Football | 1976 Summer | |
| Alexi Batista | Panama | Weightlifting | 1996 Summer, 2000 Summer | |
| César Batista | Portugal | Shooting | 1960 Summer, 1972 Summer | |
| Eider Batista | Cuba | Rowing | 2008 Summer | |
| João Batista | Brazil | Football | 1988 Summer | |
| Joycenara Batista | Basketball | 1992 Summer | |
| Ketiley Batista | Athletics | 2020 Summer | |
| Michel Batista | Cuba | Weightlifting | 2000 Summer, 2004 Summer | |
| Michel Batista | Wrestling | 2008 Summer | |
| Pascual Batista | Argentina | Rowing | 1948 Summer | |
| Paulo Batista Junior | Brazil | Field hockey | 2016 Summer | |
| Rafael Batista | Puerto Rico | Shooting | 1968 Summer, 1972 Summer, 1976 Summer | |
| Ricardo Batista | Portugal | Sailing | 1992 Summer | |
| Ricardo Batista | Triathlon | 2024 Summer | |
| Vasco Batista | Sailing | 1996 Summer | |
| Raichel Bativakalolo | Japan | Rugby sevens | 2020 Summer | |
| Naranjargalyn Batjargal | Mongolia | Weightlifting | 1992 Summer | |
| Oleksandr Batjuk [ Wikidata ] | Ukraine | Cross country skiing | 2006 Winter | |
| Zorigtyn Batkhuyag | Mongolia | Shooting | 2000 Summer, 2008 Summer | |
| Noemi Batki | Italy | Diving | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Józef Batkiewicz | Poland | Ice hockey | 1972 Winter | |
| Marek Batkiewicz | 1992 Winter | |
| Suzy Batkovic | Australia | Basketball | 2004 Summer, 2008 Summer, 2012 Summer | |
| Attila Bátky | Slovakia | Wrestling | 2004 Summer, 2008 Summer | |
| Alexis Batle | Cuba | Volleyball | 1996 Summer | |
| Thomas Batliner | Liechtenstein | Equestrian jumping | 1988 Summer | |
| Ona Batlle | Spain | Football | 2024 Summer | |
| Jean Batmale | France | 1920 Summer, 1924 Summer | |
| Daniel Batman | Australia | Athletics | 2000 Summer | |
| Bijan Batmani | Iran | Boxing | 2000 Summer | |
| Ergün Batmaz | Turkey | Weightlifting | 1988 Summer, 1996 Summer | |
| Gendgeegiin Batmönkh | Mongolia | Cross country skiing | 1968 Winter | |
| Oskars Batņa | Latvia | Ice hockey | 2022 Winter | |
| Magali Baton | France | Judo | 1996 Summer | |
| Csilla Bátorfi | Hungary | Table tennis | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Zoltán Bátorfi | 1996 Summer | |
| Batchuluuny Bat-Orgil | Mongolia | Short track speed skating | 1994 Winter | |
| Ivan Bátory | Slovakia | Cross country skiing | 1994 Winter, 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter | |
| Reda El-Batoty | Egypt | Weightlifting | 1988 Summer, 1992 Summer | |
| Sandjema Batouli | Comoros | Athletics | 2000 Summer | |
| Paulína Bátovská Fialková | Slovakia | Biathlon | 2014 Winter, 2018 Winter, 2022 Winter | |
| Miloš Bátovský | Athletics | 2004 Summer, 2008 Summer, 2012 Summer | |
| Manika Batra | India | Table tennis | 2016 Summer, 2020 Summer, 2024 Summer | |
| Jaime Batres | Guatemala | Football | 1988 Summer | |
| Vitalina Batsarashkina | Russia, Russian Olympic Committee | Shooting | 2016 Summer, 2020 Summer | |
| Mieczysław Batsch | Poland | Football | 1924 Summer | |
| Reinhold Batschi | Romania | Rowing | 1968 Summer | |
| Jürgen Bätschmann | Switzerland | Handball | 1984 Summer | |
| Thato Batshegi | Botswana | Boxing | 2008 Summer | |
| Hanna Batsiushka | Belarus | Weightlifting | 2000 Summer, 2004 Summer, 2008 Summer | |
| Lemoine Batson | United States | Ski jumping | 1924 Winter | |
| Serdamba Batsuk | Mongolia | Boxing | 1976 Summer | |
| Gandolgoryn Batsükh | Judo | 1976 Summer | |
| Pürevjavyn Batsükh | Cross country skiing | 1984 Winter | |
| Yondonjamtsyn Batsükh | Shooting | 1968 Summer, 1972 Summer | |
| Nyamdashiin Batsüren | Boxing | 1972 Summer | |
| Frank Battaglia | Canada | 1928 Summer | |
| Gérard Battaglia | Monaco | Sailing | 1960 Summer, 1976 Summer | |
| Philippe Battaglia | 1988 Summer | |
| René Battaglia | Weightlifting | 1964 Summer | |
| Roberto Battaglia | Italy | Fencing | 1952 Summer | |
| Sugár Katinka Battai | Hungary | 2020 Summer, 2024 Summer | |
| Isobel Batt-Doyle | Australia | Athletics | 2020 Summer, 2024 Summer | |
| Erik Batte | Cuba | 1996 Summer | |
| Edward Battell | Great Britain | Road cycling, Track cycling | 1896 Summer | |
| Ann Battelle | United States | Freestyle skiing | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter | |
| Ivo Battelli | Italy | Art competitions | 1932 Summer | |
| Guin Batten | Great Britain | Rowing | 1996 Summer, 2000 Summer | |
| Haley Batten | United States | Cycling mountain bike | 2020 Summer, 2024 Summer | |
| Kim Batten | Athletics | 1996 Summer, 2000 Summer | |
| Malcolm Batten | Australia | Rowing | 1988 Summer | |
| Miriam Batten | Great Britain | 1992 Summer, 1996 Summer, 2000 Summer | |
| Bodo Battenberg | Germany | Equestrian eventing | 1996 Summer | |
| Doris Batter | Great Britain | Athletics | 1948 Summer | |
| James Battersby | Australia | Rowing | 1984 Summer | |
| Kerry Battersby | Artistic gymnastics | 1984 Summer | |
| Robert Battersby | Canada | Rowing | 1972 Summer | |
| Sydney Battersby | Great Britain | Swimming | 1908 Summer, 1912 Summer | |
| Frank Battig | Austria | Modern pentathlon, Fencing | 1960 Summer, 1968 Summer | |
| Marco Battilana | Switzerland | Curling | 2006 Winter | |
| Walter Battiss | South Africa | Art competitions | 1948 Summer | |
| Éric Battista | France | Athletics | 1956 Summer, 1960 Summer, 1964 Summer | |
| Gary Battistella | Canada | Alpine skiing | 1964 Winter | |
| Stefano Battistelli | Italy | Swimming | 1988 Summer, 1992 Summer | |
| Romano Battisti | Rowing | 2012 Summer, 2016 Summer | |
| Maurizio Battistini | San Marino | Alpine skiing | 1976 Winter | |
| Sergio Battistini | Italy | Football | 1984 Summer | |
| Michela Battiston | Fencing | 2020 Summer, 2024 Summer | |
| Patrick Battiston | France | Football | 1976 Summer | |
| Anavia Battle | United States | Athletics | 2020 Summer | |
| Nadia Battocletti | Italy | 2020 Summer, 2024 Summer | |
| Tümen-Odyn Battögs | Mongolia | Judo | 2008 Summer | |
| Tömöriin Battör [ Wikidata ] | Boxing | 1980 Summer | |
| Soronzonboldyn Battsetseg | Wrestling | 2012 Summer, 2016 Summer, 2020 Summer | |
| Aurélie Battu [ Wikidata ] | France | Water polo | 2024 Summer | |
| Dambajantsagiin Battulga | Mongolia | Cross country skiing | 1988 Winter | |
| Dashgombyn Battulga | Judo | 1992 Summer | |
| Khaltmaagiin Battuul | Wrestling | 1988 Summer | |
| Brock Batty | Australia | Trampolining | 2024 Summer | |
| Emily Batty | Canada | Cycling mountain bike | 2012 Summer, 2016 Summer | |
| Nicolas Batum | France | Basketball | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Luasa Batungile | Democratic Republic of the Congo | Athletics | 1992 Summer | |
| Arieh Batun-Kleinstub | Israel | 1952 Summer | |
| Valery Batura | Unified Team | Track cycling | 1992 Summer | |
| Ekaterina Baturina | Russia, Russian Olympic Committee | Luge | 2014 Winter, 2018 Winter | |
| Eugenio Baturone | Spain | Bobsleigh | 1968 Winter | |
| Bobo-Usmon Baturov | Uzbekistan | Boxing | 2020 Summer | |
| Albert Batyrgaziev | Russian Olympic Committee | 2020 Summer | |
| Albert Batyrov | Belarus | Wrestling | 2008 Summer | |
| Yana Batyrshina | Russia | Rhythmic gymnastics | 1996 Summer | |
| Zilia Batyrshina | Russian Olympic Committee | Shooting | 2020 Summer | |
| Oleksandr Batyuk | Soviet Union | Cross country skiing | 1984 Winter, 1988 Winter | |
| Simon Batz | Germany | Athletics | 2024 Summer | |
| Nestoras Batzelas | Greece | Wrestling | 2004 Summer | |
| Albert Batzill | West Germany, Germany | Sailing | 1988 Summer, 1992 Summer | |
| Buyanjavyn Batzorig | Mongolia | Wrestling | 2008 Summer | |
| Mathias Bau Hansen | Denmark | Ice hockey | 2022 Winter | |
| Mia Bau Hansen | 2022 Winter | |
| Alexander Bau | Germany | Luge | 1994 Winter | |
| Martin Bau | Slovenia | Swimming | 2016 Summer, 2020 Summer | |
| Sabine Bau | West Germany, Germany | Fencing | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Günther Bauch | Germany | Wrestling | 1964 Summer | |
| Herbert Bauch | East Germany | Boxing | 1980 Summer | |
| Jan Bauch | Czechoslovakia | Rowing | 1920 Summer | |
| Armando Bauche | Mexico | Sailing | 1972 Summer | |
| Bernd Bauchspieß | Germany | Football | 1964 Summer | |
| Susanne Bauckholt | West Germany, Germany | Sailing | 1988 Summer, 1996 Summer | |
| Hélène de Bauclas [ Wikidata ] | France | Art competitions | 1928 Summer | |
| Adeline Baud Mugnier | Alpine skiing | 2014 Winter, 2018 Winter | |
| Frédéric Baud | Nordic combined | 2002 Winter | |
| Jean-Jacques Baud | Shooting | 1972 Summer | |
| Mattéo Baud | Nordic combined | 2022 Winter | |
| Maurice Baudechon | Rowing | 1924 Summer | |
| Mathieu Bauderlique | Boxing | 2016 Summer | |
| Belinda Baudin | United States | Equestrian dressage | 1988 Summer | |
| Robert Baudinne | Belgium | Ice hockey | 1936 Winter | |
| Stefano Baudino | Italy | Track cycling | 1984 Summer | |
| L. Baudoin [ Wikidata ] | France | Swimming | 1900 Summer | |
| Paule Baudouin | Handball | 2008 Summer, 2012 Summer | |
| Bernard Baudoux | Fencing | 1956 Summer | |
| Claude Baudoux | Belgium | Field hockey | 1928 Summer | |
| Yvon Baudoux | 1928 Summer | |
| Henri Baudrand | France | Weightlifting | 1928 Summer | |
| Roland Baudric | Wrestling | 1948 Summer | |
| Jacques Baudrier | Sailing | 1900 Summer | |
| Lucien Baudrier | 1900 Summer | |
| Yves Baudrier | Sailing, Art competitions | 1936 Summer, 1948 Summer | |
| Anne-Marie Bauduin | Artistic gymnastics | 1988 Summer | |
| Fernand Bauduin | Athletics | 1920 Summer | |
| Aloisia Bauer | West Germany | Swimming | 1968 Summer | |
| Andreas Bauer | Ski jumping | 1984 Winter, 1988 Winter | |
| Andreas Bauer | Boxing | 1984 Summer | |
| Anton-Martin Bauer | Austria | Equestrian jumping | 1996 Summer, 2000 Summer | |
| Armin Bauer | Italy | Nordic combined | 2010 Winter, 2014 Winter | |
| Bernhard Bauer | Germany | Alpine skiing | 1994 Winter | |
| Candy Bauer | Bobsleigh | 2018 Winter, 2022 Winter | |
| Christian Bauer | Shooting | 2000 Summer | |
| Christina Bauer | France | Volleyball | 2024 Summer | |
| Dennis Bauer | Germany | Fencing | 2000 Summer | |
| Dorothee Bauer | Shooting | 2004 Summer | |
| Emmerich Bauer | Austria | Weightlifting | 1952 Summer | |
| Florian Bauer | Germany | Bobsleigh | 2022 Winter | |
| Fritz Bauer | Rowing | 1928 Summer, 1932 Summer, 1936 Summer | |
| Georges Bauer | Luxembourg | Water polo | 1928 Summer | |
| Gustave Bauer | United States | Wrestling | 1904 Summer | |
| Hans Bauer | Germany | Cross country skiing | 1928 Winter | |
| Hermann Bauer | Austria | Rowing | 1988 Summer, 1992 Summer, 1996 Summer | |
| Inge Bauer | East Germany | Athletics | 1968 Summer | |
| Jack Bauer | New Zealand | Road cycling | 2012 Summer | |
| John Bauer | United States | Cross country skiing | 1992 Winter, 1998 Winter, 2002 Winter | |
| Josef Bauer [ Wikidata ] | Czechoslovakia | Art competitions | 1936 Summer | |
| Julije Bauer | Yugoslavia | Athletics | 1936 Summer | |
| Karin Bauer | Austria | Shooting | 1984 Summer | |
| Katharina Bauer [ Wikidata ] | Germany | Archery | 2024 Summer | |
| Klemen Bauer | Slovenia | Biathlon | 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter | |
| Leopold Bauer | Austria | Art competitions | 1936 Summer | |
| Lisa Bauer | Canada | Field hockey | 1984 Summer | |
| Lukáš Bauer | Czech Republic | Cross country skiing | 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter | |
| Paul Bauer | Germany | Art competitions | 1932 Summer | |
| Reinhard von Bauer | West Germany | Diving | 1972 Summer | |
| Reinhold Bauer | Ice hockey | 1972 Winter | |
| Robert Bauer | Germany | Football | 2016 Summer | |
| Rudolf Bauer | Hungary | Athletics | 1900 Summer | |
| Seth Bauer | United States | Rowing | 1988 Summer | |
| Simone Bauer | Germany | Fencing | 2004 Summer | |
| Steve Bauer | Canada | Road cycling | 1984 Summer, 1996 Summer | |
| Sybil Bauer | United States | Swimming | 1924 Summer | |
| Théophile Bauer | Belgium | Artistic gymnastics | 1920 Summer | |
| Thomas Bauer | Germany | Short track speed skating | 2006 Winter | |
| Tomáš Bauer | Czechoslovakia | Diving | 1960 Summer | |
| Veronika Bauer | Canada | Freestyle skiing | 2002 Winter, 2006 Winter, 2010 Winter | |
| Viola Bauer | Germany | Cross country skiing | 2002 Winter, 2006 Winter | |
| Kim Bauermeister | Athletics | 1996 Summer | |
| Hans-Jürgen Bauer-Neumaier | Shooting | 1992 Summer, 1996 Summer, 2000 Summer | |
| Maritta Bauerschmidt | East Germany | Artistic gymnastics | 1968 Summer | |
| Wilhelm Baues | West Germany | Canoe slalom | 1972 Summer | |
| Grégory Baugé | France | Track cycling | 2008 Summer, 2012 Summer, 2016 Summer | |
| Fred Baugh | Australia | Weightlifting | 1956 Summer | |
| Hale Baugh | United States | Modern pentathlon | 1948 Summer | |
| R. Wayne Baughman | Wrestling | 1964 Summer, 1968 Summer, 1972 Summer | |
| Jean-Louis Baugnies | Belgium | Track cycling | 1976 Summer | |
| Pierre Baugniet | Figure skating | 1948 Winter | |
| Crosbie Baulch | Australia | Canoe sprint | 1980 Summer | |
| Jamie Baulch | Great Britain | Athletics | 1996 Summer, 2000 Summer | |
| Yuri Baulin | Soviet Union | Ice hockey | 1960 Winter | |
| Alfred Baum | West Germany | Canoe slalom | 1972 Summer | |
| Billy Baum | Puerto Rico | Basketball | 1972 Summer | |
| Dwight James Baum | United States | Art competitions | 1936 Summer | |
| Frank Baum | East Germany | Football | 1980 Summer | |
| Sarah Baum [ Wikidata ] | South Africa | Surfing | 2024 Summer | |
| Herma Bauma | Austria | Athletics | 1936 Summer, 1948 Summer, 1952 Summer | |
| Karlo Bauman | Yugoslavia | Sailing | 1936 Summer, 1952 Summer | |
| Arnolds Baumanis | Latvia | Wrestling | 1924 Summer | |
| Herberts Baumanis [ Wikidata ] | Russia | Athletics | 1912 Summer | |
| Rudolfs Baumanis | Latvia | Shooting | 1936 Summer | |
| Albert Baumann | Switzerland | 1896 Summer | |
| Alex Baumann | Canada | Swimming | 1984 Summer | |
| Alex Baumann | Switzerland | Bobsleigh | 2014 Winter | |
| Ashton Baumann | Canada | Swimming | 2016 Summer | |
| Christian Baumann | Switzerland | Artistic gymnastics | 2016 Summer, 2020 Summer | |
| Dieter Baumann | West Germany, Germany | Athletics | 1988 Summer, 1992 Summer, 1996 Summer | |
| Edgar Baumann | Paraguay | 1996 Summer | |
| Édouard Baumann | France | Football | 1920 Summer, 1924 Summer | |
| Edy Baumann | Switzerland | Track cycling | 1936 Summer | |
| Georg Baumann | Russia | Wrestling | 1912 Summer | |
| Hannes Baumann | Germany | Sailing | 2012 Summer | |
| Hans Baumann | Austria | Cross country skiing, Nordic combined | 1936 Winter | |
| Hans Baumann | Switzerland | Modern pentathlon | 1936 Summer | |
| Hans Baumann | West Germany | Bobsleigh | 1968 Winter | |
| Helmuth Baumann | East Germany | Athletics | 1968 Summer | |
| Henri Baumann | Switzerland | Basketball | 1948 Summer, 1952 Summer | |
| Hermann Baumann | Wrestling | 1948 Summer | |
| Jackie Baumann | Germany | Athletics | 2016 Summer | |
| Jasmin Baumann | Switzerland | Cross country skiing | 1994 Winter | |
| Jean Baumann | France | Shooting | 1972 Summer, 1976 Summer | |
| Jonas Baumann | Switzerland | Cross country skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Julie Baumann | Canada, Switzerland | Athletics | 1988 Summer, 1996 Summer | |
| Kurt Baumann | Switzerland | Rowing | 1972 Summer | |
| Matthias Baumann | West Germany, Germany | Equestrian eventing | 1988 Summer, 1992 Summer | |
| Norberto von Baumann | Argentina | Cross country skiing | 1984 Winter | |
| Paweł Baumann | Poland | Canoe sprint | 2004 Summer, 2008 Summer | |
| Romed Baumann | Austria, Germany | Alpine skiing | 2010 Winter, 2014 Winter, 2022 Winter | |
| Wilhelm Baumann | Germany | Handball | 1936 Summer | |
| Maren Baumbach | 2008 Summer | |
| Alphonse Baume | Switzerland | Cross country skiing | 1960 Winter, 1964 Winter | |
| Anna Holm Baumeister | Denmark | Athletics | 2016 Summer | |
| Stefan Baumeister | Germany | Snowboarding | 2014 Winter, 2018 Winter, 2022 Winter | |
| Truus Baumeister | Netherlands | Swimming | 1928 Summer | |
| Willi Baumeister | Germany | Art competitions | 1928 Summer, 1932 Summer | |
| Eleanore Bäumel | Austria | Figure skating | 1936 Winter | |
| Daniela Baumer | Switzerland | Canoe sprint | 1996 Summer | |
| Lewis Baumer | Great Britain | Art competitions | 1928 Summer, 1932 Summer | |
| Susie Baumer | Australia | Swimming | 1984 Summer, 1988 Summer | |
| Jean Baumert | France | Wrestling | 1924 Summer | |
| Bernd Baumgart | East Germany | Rowing | 1976 Summer | |
| Wolfgang Baumgart | West Germany | Field hockey | 1968 Summer, 1972 Summer | |
| Alexander Baumgärtel | Germany | Speed skating | 1994 Winter, 1998 Winter | |
| Adolf Baumgarten | Boxing | 1936 Summer | |
| Gaspard Baumgarten | France | Field hockey | 2024 Summer | |
| Frank Baumgartl | East Germany | Athletics | 1976 Summer | |
| Alexej Baumgärtner | Germany | Speed skating | 2014 Winter | |
| Armin Baumgartner | Switzerland | Bobsleigh | 1980 Winter | |
| August Baumgartner | Austria | Shooting | 1924 Summer | |
| Bruce Baumgartner | United States | Wrestling | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Hans Baumgartner | West Germany | Athletics | 1972 Summer, 1976 Summer | |
| Johannes Baumgartner | Switzerland | 1952 Summer | |
| Kurt Baumgartner | Austria | Boxing | 1968 Summer | |
| Marc Baumgartner | Switzerland | Handball | 1996 Summer | |
| Mike Baumgartner | United States | Bobsleigh | 1964 Winter | |
| Nick Baumgartner | Snowboarding | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Patrick Baumgartner [ Wikidata ] | Italy | Bobsleigh | 2022 Winter | |
| Iga Baumgart-Witan | Poland | Athletics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Artur Bäumle | Germany | 1936 Summer | |
| Hans-Jürgen Bäumler | Figure skating | 1960 Winter, 1964 Winter | |
| Henri Baumler [ Wikidata ] | France | Track cycling | 1908 Summer | |
| Jiří Baumruk | Czechoslovakia | Basketball | 1952 Summer, 1960 Summer | |
| Miroslav Baumruk | 1952 Summer | |
| Petr Baumruk | Handball | 1988 Summer, 1992 Summer | |
| Tine Baun | Denmark | Badminton | 2004 Summer, 2008 Summer, 2012 Summer | |
| Niels Baunsøe | Road cycling | 1960 Summer | |
| Benno Baur [ Wikidata ] | Switzerland | Rowing | 1920 Summer | |
| Friedrich Baur | Latvia | Art competitions | 1928 Summer, 1932 Summer | |
| Marcus Baur | Germany | Sailing | 2000 Summer, 2004 Summer | |
| Markus Baur | Handball | 1996 Summer, 2000 Summer, 2004 Summer | |
| Michel Baur | France | Bobsleigh | 1928 Winter | |
| Otto Bäurle | Germany | Athletics | 1912 Summer | |
| Tommy Bauro | Solomon Islands | Boxing | 1988 Summer | |
| Holger Bauroth | East Germany, Germany | Cross country skiing | 1988 Winter, 1992 Winter | |
| Kurt Bausback | United States | Rowing | 1988 Summer | |
| Dotsie Bausch | Track cycling | 2012 Summer | |
| Étienne Bausch | Luxembourg | Football | 1924 Summer | |
| Jim Bausch | United States | Athletics | 1932 Summer | |
| Otto Bauscher [ Wikidata ] | Great Britain | Artistic gymnastics | 1908 Summer | |
| Inge Bausenwein | Germany | Athletics | 1952 Summer | |
| Olivier Bausset | France | Sailing | 2008 Summer | |
| Nereida Bauta | Cuba | Artistic gymnastics | 1968 Summer | |
| Víctor Baute | Spain | Boxing | 1992 Summer | |
| André Bautier | Belgium | Ice hockey | 1928 Winter | |
| Sergei Bautin | Unified Team | 1992 Winter | |
| Roberto Bautista Agut | Spain | Tennis | 2016 Summer | |
| Alba Bautista | Rhythmic gymnastics | 2024 Summer | |
| Daniel Bautista | Mexico | Athletics | 1976 Summer, 1980 Summer | |
| Emilio Bautista | Spain | Boxing | 1924 Summer | |
| Enrique Bautista | Philippines | Athletics | 1960 Summer | |
| Florentino Bautista | Basketball | 1952 Summer | |
| Francisco Bautista | Mexico | Athletics | 2008 Summer | |
| José Bautista | Dominican Republic | Baseball | 2020 Summer | |
| Yudelkys Bautista | Volleyball | 2004 Summer | |
| Ines Bautzmann | East Germany | Speed skating | 1976 Winter | |
| Jean Bauwens | Belgium | Rowing | 1928 Summer | |
| Raymond Bauwens | Sailing | 1920 Summer | |
| René Bauwens | Swimming, Water polo | 1920 Summer, 1928 Summer | |
| Ward Bauwens | Swimming | 2012 Summer | |
| Claude Baux | France | Canoe slalom | 1972 Summer | |
| Karolis Bauža | Lithuania | Judo | 2012 Summer | |
| Raúl Bauza | Argentina | Modern pentathlon | 1960 Summer | |
| Walter Bauza | Shooting | 1984 Summer | |
| Orlando Bauzon | Philippines | Basketball | 1968 Summer | |
| Giuseppe Riccobaldi del Bava | | | | |
| Mimma Riccobaldi del Bava [ Wikidata ] | Italy | Art competitions | 1948 Summer | |
| Mirko Bavče | Yugoslavia | Cross country skiing | 1964 Winter, 1968 Winter | |
| Charles Baveaux [ Wikidata ] | France | Equestrian dressage | 1900 Summer | |
| Anastasios Bavelas | Greece | Tennis | 1988 Summer, 1992 Summer | |
| Allison Baver | United States | Short track speed skating | 2006 Winter, 2010 Winter | |
| Florence Baverel-Robert | France | Biathlon | 1998 Winter, 2002 Winter, 2006 Winter | |
| Myriam Baverel | Taekwondo | 2000 Summer, 2004 Summer | |
| Vadim Bavikin | Israel | Athletics | 1992 Summer | |
| Elio Bavutti | Italy | Road cycling | 1936 Summer | |
| Bavuudorjiin Baasankhüü | Mongolia | Judo | 2024 Summer | |
| Louise Bawden | Australia | Volleyball, Beach volleyball | 2000 Summer, 2012 Summer, 2016 Summer | |
| Pat Bawtinheimer | Canada | Shooting | 1984 Summer | |
| Veronica Bawuah | Ghana | Athletics | 1988 Summer, 2000 Summer | |
| Yazan Al-Bawwab | Palestine | Swimming | 2020 Summer, 2024 Summer | |
| Michael Baxte | United States | Art competitions | 1936 Summer | |
| Alain Baxter | Great Britain | Alpine skiing | 1998 Winter, 2002 Winter, 2006 Winter | |
| Alfred Baxter | Weightlifting | 1924 Summer, 1928 Summer | |
| Betty Baxter | Canada | Volleyball | 1976 Summer | |
| Brittany Baxter | Football | 2008 Summer, 2012 Summer | |
| Christopher Baxter [ Wikidata ] | South Africa | Rowing | 2024 Summer | |
| Gregory Baxter | Canada | Ski jumping | 2006 Winter | |
| Irving Baxter | United States | Athletics | 1900 Summer | |
| James Baxter | Great Britain | Sailing | 1908 Summer | |
| Kate Baxter | Australia | Fencing | 1960 Summer | |
| Noel Baxter | Great Britain | Alpine skiing | 2002 Winter, 2006 Winter | |
| Sigríður Þorláksdóttir Baxter | Iceland | 1998 Winter | |
| Virginia Baxter | United States | Figure skating | 1952 Winter | |
| Béla Bay | Hungary | Fencing | 1936 Summer, 1948 Summer | |
| Tina Bay | Norway | Cross country skiing | 2002 Winter | |
| Zoubeir Baya | Tunisia | Football | 1996 Summer | |
| Darkhan Bayakhmetov | Kazakhstan | Wrestling | 2008 Summer, 2012 Summer | |
| Hasan Bayan [ Wikidata ] | Syria | Judo | 2024 Summer | |
| Anastasia Bayandina | France | Artistic swimming | 2024 Summer | |
| Khorloogiin Bayanmönkh | Mongolia | Wrestling | 1964 Summer, 1968 Summer, 1972 Summer, 1976 Summer, 1980 Summer | |
| Palamdorjiin Bayar | Boxing | 1972 Summer | |
| Nyantain Bayaraa | Shooting | 2012 Summer, 2024 Summer | |
| Alexis Bayard [ Wikidata ] | Switzerland | Fencing | 2024 Summer | |
| Jean Bayard | France | Rugby | 1924 Summer | |
| Makhgalyn Bayarjavkhlan | Mongolia | Judo | 2008 Summer | |
| Namkhaidorjiin Bayarmaa | Weightlifting | 2004 Summer, 2008 Summer | |
| Namjilyn Bayarsaikhan | Boxing | 1992 Summer | |
| Vanduin Bayasgalan | 1980 Summer | |
| Nazli Bayat Makoo | Iran | Athletics | 1964 Summer | |
| Mohammad Bayati | Football | 1964 Summer | |
| Ahmed Bayazid | Saudi Arabia | 1984 Summer | |
| Alaattin Baydar | Turkey | 1924 Summer, 1928 Summer | |
| Behzat Baydar | Sailing | 1936 Summer | |
| Ajanew Bayene | Ethiopia | Athletics | 1956 Summer | |
| Bayer [ Wikidata ] | France | Artistic gymnastics | 1900 Summer | |
| Cliff Bayer | United States | Fencing | 1996 Summer, 2000 Summer | |
| Ernest Bayer | Rowing | 1928 Summer | |
| Gustav Bayer | Norway | Artistic gymnastics | 1920 Summer | |
| Herwig Bayer | Austria | Swimming | 1980 Summer | |
| Martin Bayer | Czechoslovakia, Slovakia | Nordic combined | 1992 Winter, 1994 Winter | |
| Monika Bayer | Austria | Swimming | 1984 Summer | |
| Ricardo Bayer | Chile | Athletics | 1928 Summer | |
| Sebastian Bayer | Germany | 2008 Summer, 2012 Summer | |
| Valentin Bayer | Austria | Swimming | 2024 Summer | |
| Gilbert Bayes | Great Britain | Art competitions | 1928 Summer | |
| Sharon Bayes | Canada | Field hockey | 1984 Summer, 1988 Summer | |
| Ibrahim Bayesh | Iraq | Football | 2024 Summer | |
| Fernande Bayetto | France | Alpine skiing | 1948 Winter | |
| Sefer Baygın | Turkey | Wrestling | 1972 Summer | |
| Filbert Bayi | Tanzania | Athletics | 1972 Summer, 1980 Summer | |
| Justine Bayigga | Uganda | 2008 Summer | |
| Fita Bayisa | Ethiopia | 1992 Summer, 1996 Summer, 2000 Summer | |
| Viktor Baykov | Soviet Union | 1964 Summer | |
| Georges Bayle | France | Wrestling | 1936 Summer | |
| Andrew Bayles | Great Britain | Rowing | 1968 Summer | |
| Howard Bayles | United States | Shooting | 1920 Summer | |
| Bruce Bayley | Barbados | Sailing | 1984 Summer | |
| Donald Bayley | Australia | Weightlifting | 1960 Summer | |
| James Bayley | Tennis | 1924 Summer | |
| Ryan Bayley | Track cycling | 2004 Summer, 2008 Summer | |
| Anna Baylis | Cycling mountain bike | 2000 Summer | |
| William Baylis | United States | Sailing | 1988 Summer | |
| Frank Bayliss | Great Britain | Rugby | 1900 Summer | |
| Kerry Bayliss | Australia | Artistic gymnastics | 1980 Summer | |
| Lachlan Bayliss | New Zealand | Football | 2024 Summer | |
| Lisa Bayliss | Great Britain | Field hockey | 1992 Summer | |
| Steven Bayliss | Wrestling | 1984 Summer | |
| Kseniya Baylo | Ukraine | Diving | 2024 Summer | |
| Ernst Baylon | Austria | Fencing | 1928 Summer, 1936 Summer | |
| John Baylon | Philippines | Judo | 1988 Summer, 1992 Summer | |
| Luren Baylon | Peru | Volleyball | 1996 Summer | |
| Fiona Bayne | Great Britain | Curling | 1998 Winter | |
| Gregory Bayne | South Africa | Rowing | 1996 Summer | |
| Aron Baynes | Australia | Basketball | 2012 Summer, 2016 Summer, 2020 Summer | |
| Simon Baynes | Great Britain | Freestyle skiing | 1992 Winter | |
| Getuli Bayo | Tanzania | Athletics | 2008 Summer | |
| Zebedayo Bayo | 2000 Summer, 2004 Summer | |
| Eugène Bayon | France | 1920 Summer | |
| Martha Bayona | Colombia | Track cycling | 2016 Summer, 2024 Summer | |
| Robert Bayot | Belgium | Fencing | 1948 Summer, 1952 Summer | |
| Tamer Bayoumi | Egypt | Taekwondo | 2004 Summer, 2012 Summer | |
| Mithat Bayrak | Turkey | Wrestling | 1956 Summer, 1960 Summer, 1964 Summer | |
| Özge Bayrak | Badminton | 2016 Summer | |
| Hussein Bayram | France | Boxing | 1996 Summer | |
| İsmail Bayram | Turkey | Weightlifting | 1972 Summer | |
| Afgan Bayramov | Azerbaijan | 2008 Summer, 2012 Summer | |
| Rovshan Bayramov | Wrestling | 2008 Summer, 2012 Summer, 2016 Summer | |
| Turan Bayramov | 2020 Summer, 2024 Summer | |
| Islam Bayramukov | Kazakhstan | 1996 Summer, 2000 Summer, 2004 Summer | |
| Lauren Bay-Regula | Canada | Softball | 2004 Summer, 2008 Summer, 2020 Summer | |
| Georges Bayrou | France | Football | 1908 Summer | |
| Nikolay Bayryakov | Bulgaria | Wrestling | 2016 Summer | |
| Phil Bayton | Great Britain | Road cycling | 1972 Summer | |
| Krisna Bayu | Indonesia | Judo | 1996 Summer, 2000 Summer, 2004 Summer | |
| Hamdan Bayusuf | Kenya | Swimming | 2016 Summer | |
| Shane Baz | United States | Baseball | 2020 Summer | |
| Sandro Bazadze | Georgia | Fencing | 2016 Summer, 2020 Summer, 2024 Summer | |
| Peter Bazálik | Slovakia | Track cycling | 1996 Summer, 2000 Summer, 2004 Summer | |
| Josep Bazán | Spain | Water polo | 1952 Summer | |
| Lautaro Bazán | Argentina | Rugby sevens | 2020 Summer | |
| Leonid Bazan | Bulgaria | Wrestling | 2012 Summer | |
| Mario Bazán | Peru | Athletics | 2012 Summer | |
| Antoni Bazaniak | Poland | Canoe sprint | 1936 Summer | |
| Maryna Bazanova | Soviet Union, Unified Team | Handball | 1988 Summer, 1992 Summer | |
| Ümürbek Bazarbaýew | Turkmenistan | Weightlifting | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Mukhammedsabyr Bazarbayuly | Kazakhstan | Boxing | 2024 Summer | |
| Sergei Bazarevich | Unified Team, Russia | Basketball | 1992 Summer, 2000 Summer | |
| Jalal Bazargan | Iran | Artistic gymnastics | 1964 Summer | |
| Reza Bazargan | Alpine skiing | 1956 Winter | |
| Bazar Bazarguruev | Kyrgyzstan | Wrestling | 2008 Summer | |
| Wawrzyniec Bazarnik | Poland | Boxing | 1948 Summer | |
| Aleksey Bazarov | Israel | Athletics | 1992 Summer | |
| Vera Bazarova | Russia | Figure skating | 2010 Winter, 2014 Winter | |
| Tsedendorjiin Bazarsüren | Mongolia | Archery | 1980 Summer | |
| Galsan Bazarzhapov | Russian Olympic Committee | 2020 Summer | |
| Assan Bazayev | Kazakhstan | Road cycling | 2012 Summer | |
| Mehmed Baždarević | Yugoslavia | Football | 1984 Summer | |
| Jan Bazen | Netherlands | Speed skating | 1976 Winter | |
| Aleksandr Bazhanov | Soviet Union | Swimming | 1988 Summer | |
| Svetlana Bazhanova | Unified Team, Russia | Speed skating | 1992 Winter, 1994 Winter, 1998 Winter | |
| Viktor Bazhenov | Soviet Union | Fencing | 1972 Summer | |
| Nadezhda Bazhina | Russia | Diving | 2012 Summer, 2016 Summer | |
| Nikolay Bazhukov | Soviet Union | Cross country skiing | 1976 Winter, 1980 Winter | |
| Pius Bazighe | Nigeria | Athletics | 1996 Summer | |
| Irina Bazilevskaya | Belarus | Rowing | 2000 Summer | |
| Bazin [ Wikidata ] | France | Fencing | 1900 Summer | |
| Marie-Josée Bazin | Archery | 1988 Summer | |
| Egon Bazini | Hungary | Rowing | 1936 Summer | |
| Károly Bazini | 1936 Summer | |
| Francis Bazire | France | Road cycling | 1964 Summer | |
| Svenja Bazlen | Germany | Triathlon | 2012 Summer | |
| María Belén Bazo | Peru | Sailing | 2020 Summer, 2024 Summer | |
| Lorène Bazolo | Republic of the Congo, Portugal | Athletics | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Adriana Bazon | Romania | Rowing | 1984 Summer, 1988 Summer, 1992 Summer | |
| Valentin Bazon | Judo | 1992 Summer | |
| Pavel Bazuk | Belarus | Weightlifting | 2000 Summer | |
| Rex Bazunu | Nigeria | Athletics | 1972 Summer | |
| Michael Bazynski | West Germany | Judo | 1988 Summer | |
| Tatiana Bazyuk | Russia | Sailing | 2008 Summer, 2012 Summer | |
| Giacomo Bazzan | Italy | Track cycling | 1972 Summer | |
| Marcello Bazzana | Ski jumping | 1976 Winter | |
| Evelyn Bazzanella | Ice hockey | 2006 Winter | |
| Charlie Bazzano | Australia | Track cycling | 1948 Summer | |
| Gian Bazzi | Switzerland | Ice hockey | 1952 Winter | |
| Patrizia Bazzi | Artistic gymnastics | 1972 Summer | |
| Chiara Bazzoni | Italy | Athletics | 2012 Summer | |