| Name | Nation | Sport | Games | Notes |
|---|
| Jai Bhagwan | India | Boxing | 2012 Summer | |
| Anjali Bhagwat | Shooting | 2000 Summer, 2004 Summer, 2008 Summer | |
| Zied Bhairi | Tunisia | Football | 2004 Summer | |
| Ankita Bhakat | India | Archery | 2024 Summer | |
| Katesepsawasdi Bhakdikul | Thailand | Athletics | 1964 Summer | |
| Manu Bhaker | India | Shooting | 2020 Summer, 2024 Summer | |
| Bashir Bhola Bhala | Pakistan | Wrestling | 1996 Summer | |
| Gyan Bhalla | India | Athletics | 1936 Summer | |
| Dhruv Bhandari | Sailing | 1984 Summer | |
| Gangotri Bhandari | Field hockey | 1980 Summer | |
| Rajendra Bahadur Bhandari | Nepal | Athletics | 2004 Summer | |
| Anish Bhanwala | India | Shooting | 2024 Summer | |
| Kirpal Singh Bhardwaj | Kenya | Field hockey | 1960 Summer, 1968 Summer | |
| Mohini Bhardwaj | United States | Artistic gymnastics | 2004 Summer | |
| Anant Bhargava | India | Wrestling | 1948 Summer | |
| Balwinder Kaur Bhatia | Field hockey | 1980 Summer | |
| Ranjit Bhatia | Athletics | 1960 Summer | |
| Damber Dutta Bhatta | Nepal | Boxing | 1988 Summer | |
| Rabin Bhatta | India | 1948 Summer | |
| Soniya Bhatta | Nepal | Judo | 2020 Summer | |
| Dipankar Bhattacharjee | India | Badminton | 1992 Summer, 1996 Summer | |
| Saraswati Bhattarai | Nepal | Athletics | 2016 Summer | |
| Imtiaz Bhatti | Pakistan | Road cycling, Track cycling | 1952 Summer | |
| Mukhtar Bhatti | Field hockey | 1948 Summer | |
| Kulbir Bhaura | Great Britain | 1984 Summer, 1988 Summer | |
| Raj Bhavsar | United States | Artistic gymnastics | 2008 Summer | |
| Lucky Bhembe | Eswatini | Athletics | 2000 Summer | |
| Eveline Bhend | Switzerland | Freestyle skiing | 2014 Winter | |
| Husmukh Bhikha | New Zealand | Field hockey | 1984 Summer | |
| Bhim Singh II | India | Shooting | 1976 Summer | |
| Vudha Bhirombhakdi | Thailand | 1984 Summer | |
| Marit Fjellanger Bøhm [ Wikidata ] | Norway | Speed skating | 2022 Winter | |
| Ajit Singh Bhogal | Uganda | Field hockey | 1972 Summer | |
| Kuldip Singh Bhogal | 1972 Summer | |
| Dattu Baban Bhokanal | India | Rowing | 2016 Summer | |
| Raghbir Singh Bhola | Field hockey | 1956 Summer, 1960 Summer | |
| Ravi Bhollah | Mauritius | Weightlifting | 2008 Summer | |
| Nirmal Bhose | India | Wrestling | 1948 Summer | |
| Bandu Bhosle | Artistic gymnastics | 1964 Summer | |
| Siriwan Bhudvanbhen | Thailand | Shooting | 1984 Summer | |
| Jhapat Singh Bhujel | Nepal | Boxing | 1988 Summer | |
| Arjan Bhullar | Canada | Wrestling | 2012 Summer | |
| Gaganjeet Bhullar | India | Golf | 2024 Summer | |
| Mahesh Bhupathi | Tennis | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Avtar Singh Bhurji | Uganda | Field hockey | 1972 Summer | |
| Insook Bhushan | United States | Table tennis | 1988 Summer, 1992 Summer | |
| Muhammad Umar Bhutta | Pakistan | Field hockey | 2012 Summer | |
| Bi Kun | China | Sailing | 2020 Summer | |
| Bi Shengfeng | Wrestling | 2016 Summer | |
| Bi Wenjing | Artistic gymnastics | 1996 Summer | |
| Bi Yan | Football | 2004 Summer, 2008 Summer | |
| Ye Bi [ Wikidata ] | Snowboarding | 2022 Winter | |
| Bi Zhong | Athletics | 1992 Summer | |
| Yvan Bia | France | Field hockey | 1960 Summer | |
| Emerico Biach | Italy | Swimming | 1924 Summer | |
| Yauhen Biadulin | Belarus | Judo | 2012 Summer | |
| Chad Biafore | Italy | Ice hockey | 1998 Winter | |
| Carlo Biagi | Football | 1936 Summer | |
| Cesare Biagi | Sailing | 1976 Summer | |
| Cecilia Biagioli | Argentina | Swimming, Marathon swimming | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2020 Summer | |
| Romina Biagioli | Triathlon | 2020 Summer, 2024 Summer | |
| Adriana Biagiotti | Italy | Artistic gymnastics | 1968 Summer | |
| Matilde Biagiotti [ Wikidata ] | Swimming | 2024 Summer | |
| Ivan Biakov | Soviet Union | Biathlon | 1972 Winter, 1976 Winter | |
| Czesław Białas | Poland | Weightlifting | 1952 Summer, 1956 Summer, 1960 Summer | |
| Magdalena Białas | Swimming | 1980 Summer | |
| Valentine Bialas | United States | Speed skating | 1924 Winter, 1928 Winter, 1932 Winter | |
| Małgorzata Białecka | Poland | Sailing | 2016 Summer | |
| Eliza Białkowska | Rhythmic gymnastics | 1988 Summer, 1992 Summer | |
| Dariusz Białkowski | Canoe sprint | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Yury Bialou | Belarus | Athletics | 2004 Summer, 2008 Summer | |
| Gregor Bialowas | Austria | Weightlifting | 1984 Summer | |
| Ryszard Białowąs | Poland | Basketball | 1972 Summer | |
| Chagdaryne Biambasuren | Mongolia | Archery | 1980 Summer | |
| Bian Hongmin | China | Volleyball | 2008 Summer | |
| Bian Ka | Athletics | 2016 Summer | |
| Bian Lan | Basketball | 2004 Summer, 2008 Summer | |
| Bian Tongda | Athletics | 2020 Summer | |
| Mario Biancalana | Brazil | Fencing | 1948 Summer | |
| Ruggero Biancani | Italy | Athletics | 1936 Summer | |
| Diana Bianchedi | Fencing | 1992 Summer, 1996 Summer, 2000 Summer | |
| Paolo Bianchessi | Judo | 2004 Summer, 2008 Summer | |
| Sergio Bianchetto | Track cycling | 1960 Summer, 1964 Summer | |
| Bianco Bianchi | 1936 Summer | |
| Bruno Bianchi | Sailing | 1936 Summer, 1948 Summer | |
| Bruno Bianchi | Swimming | 1960 Summer, 1964 Summer | |
| Bruno Bianchi | Athletics | 1964 Summer | |
| Carlos Bianchi | Argentina | 1932 Summer | |
| Edoardo Bianchi | Italy | Sailing | 2004 Summer, 2008 Summer | |
| Francesco Bianchi | Athletics | 1964 Summer | |
| Gabriele Bianchi | Art competitions | 1936 Summer, 1948 Summer | |
| Guillaume Bianchi | Fencing | 2024 Summer | |
| Ilaria Bianchi | Swimming | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Juan Carlos Bianchi | Venezuela | Tennis | 1996 Summer | |
| Julia Bianchi | Brazil | Football | 2020 Summer | |
| Loris Bianchi [ Wikidata ] | San Marino | Swimming | 2024 Summer | |
| Luis Bianchi | Argentina | Field hockey | 1948 Summer | |
| Martin Bianchi | Cross country skiing | 2006 Winter | |
| Patrice Bianchi | France | Alpine skiing | 1992 Winter | |
| Pietro Bianchi | Italy | Artistic gymnastics | 1912 Summer, 1920 Summer | |
| Pietro Bianchi | Weightlifting | 1920 Summer | |
| Renata Bianchi | Artistic gymnastics | 1948 Summer, 1952 Summer | |
| René Bianchi | France | Track cycling | 1956 Summer | |
| Rico Bianchi | Switzerland | Rowing | 1952 Summer, 1960 Summer | |
| Roberto Bianchi [ Wikidata ] | Italy | Baseball | 1992 Summer | |
| Serena Bianchi | Artistic swimming | 1996 Summer, 2000 Summer | |
| Simone Bianchi | Athletics | 1996 Summer | |
| Valeria Bianchi | Argentina | Handball | 2016 Summer | |
| Luca Bianchin | Italy | Swimming | 1992 Summer | |
| Enrico Bianchini | Art competitions | 1936 Summer | |
| Lisa Bianchini | Sweden | 1936 Summer | |
| Mario Bianchini | Italy | Boxing | 1932 Summer | |
| Orlando Bianchini | Athletics | 1984 Summer | |
| Ilaria Bianco | Fencing | 2008 Summer, 2016 Summer | |
| Scott Bianco | Canada | Wrestling | 1996 Summer | |
| Suzannah Bianco | United States | Artistic swimming | 1996 Summer | |
| Franca Bianconi | Italy | Figure skating | 1980 Winter | |
| Lara Bianconi | Swimming | 1992 Summer | |
| Roberta Bianconi | Water polo | 2012 Summer, 2016 Summer, 2024 Summer | |
| Aude Biannic | France | Road cycling | 2012 Summer | |
| Mikhail Biarnadski | Belarus | Boxing | 2004 Summer | |
| Héctor Biassini | Argentina | Rowing | 1972 Summer | |
| Éric Biau | France | Canoe slalom | 1992 Summer | |
| Rudi Biaudet | Finland | Sailing | 1976 Summer | |
| Vincenzo Biava | Italy | Shooting | 1960 Summer | |
| Elisabetta Biavaschi | Alpine skiing | 1998 Winter | |
| Michel Bibard | France | Football | 1984 Summer | |
| Nino Bibbia | Italy | Bobsleigh, Skeleton | 1948 Winter | |
| Dan Bibby | Great Britain | Rugby sevens | 2016 Summer, 2020 Summer | |
| Zsolt Bíber | Hungary | Athletics | 2004 Summer | |
| Noa Bibi | Mauritius | 2024 Summer | |
| Dylan Bibic | Canada | Track cycling | 2024 Summer | |
| Elzan Bibić | Serbia | Athletics | 2024 Summer | |
| Noelly Mankatu Bibiche | Democratic Republic of the Congo | 2004 Summer | |
| Olha Bibik | Ukraine | 2016 Summer | |
| Saken Bibossinov | Kazakhstan | Boxing | 2020 Summer, 2024 Summer | |
| John Biby | United States | Sailing | 1932 Summer | |
| André Bicaba | Burkina Faso | Athletics | 1972 Summer | |
| Stanislav Bičák | Czechoslovakia | Swimming | 1924 Summer | |
| Damir Bičanić | Croatia | Handball | 2012 Summer | |
| Olivette Bice | Vanuatu | Athletics | 1988 Summer | |
| Nora Aída Bicet | Cuba, Spain | 2004 Summer, 2012 Summer | |
| Yusmay Bicet | Cuba | 2004 Summer | |
| Albino Bich [ Wikidata ] | Italy | Military ski patrol | 1924 Winter | |
| Nguyễn Thị Hồng Bích | Vietnam | Swimming | 1980 Summer | |
| Vasile Bichea | Romania | Athletics | 1980 Summer | |
| Davyd Bichinashvili | Ukraine, Germany | Wrestling | 2000 Summer, 2004 Summer, 2008 Summer | |
| Khvicha Bichinashvili | Azerbaijan | 2000 Summer | |
| Wilhelm Bichl | Austria | Luge | 1968 Winter | |
| Hubert Bichler | Germany | Shooting | 1992 Summer | |
| Timo Bichler | Track cycling | 2020 Summer | |
| Adi Bichman | Israel | Swimming | 2000 Summer | |
| Felix Bichsel | Switzerland | Weightlifting | 1924 Summer | |
| Yuliya Bichyk | Belarus | Rowing | 2000 Summer, 2004 Summer, 2008 Summer, 2016 Summer | |
| Vidas Bičiulaitis | Lithuania | Boxing | 2000 Summer | |
| Benoît Bickel | Switzerland | Art competitions | 1948 Summer | |
| Lena Bickel | Artistic gymnastics | 2024 Summer | |
| Bruce Bickford | United States | Athletics | 1988 Summer | |
| James Bickford | Bobsleigh | 1936 Winter, 1948 Winter, 1952 Winter, 1956 Winter | |
| Robert Bickle | Boxing | 1952 Summer | |
| Kevin Bickner | Ski jumping | 2018 Winter, 2022 Winter | |
| Andrés Bicocca | Argentina | Swimming | 2000 Summer | |
| Bruno Bicocchi | France | Canoe sprint | 1976 Summer | |
| John Bicourt | Great Britain | Athletics | 1972 Summer, 1976 Summer | |
| Bence Bicsák | Hungary | Triathlon | 2020 Summer, 2024 Summer | |
| Richárd Bicskey | Track cycling | 1964 Summer | |
| Bence Biczó | Swimming | 2012 Summer | |
| Sergey Bida | Russian Olympic Committee | Fencing | 2020 Summer | |
| Violetta Bida | 2020 Summer | |
| Meriem Bidani | Morocco | Taekwondo | 2000 Summer | |
| Walid Bidani | Algeria | Weightlifting | 2012 Summer, 2016 Summer, 2024 Summer | |
| Soufiane Bidaoui | Morocco | Football | 2012 Summer | |
| Martin Bidař | Czech Republic | Figure skating | 2018 Winter, 2022 Winter | |
| Dominique Bidard | France | Weightlifting | 1976 Summer | |
| Mohammad Bidarian | Iran | Swimming | 2012 Summer | |
| Laurence Bidaud | Switzerland | Curling | 2002 Winter | |
| Marcel-Ernest Bidault | France | Road cycling | 1964 Summer | |
| Bruce Biddle | New Zealand | 1972 Summer | |
| Norman Biddulph | Great Britain | Athletics | 1928 Summer | |
| Raoul Bideau [ Wikidata ] | France | Fencing | 1900 Summer | |
| Jerónimo Bidegain | Argentina | Volleyball | 2000 Summer, 2004 Summer | |
| Oscar Bidegain | Shooting | 1948 Summer | |
| Juan Bidegaray | Uruguay | Sailing | 1948 Summer | |
| Jackson Bidei | Nigeria | Wrestling | 1988 Summer | |
| Alberto Biedermann | Argentina | Athletics | 1948 Summer | |
| Sidi Mohamed Ould Bidjel [ Wikidata ] | Mauritania | 2000 Summer | |
| Ludovico Bidoglio | Argentina | Football | 1928 Summer | |
| Dorota Bidołach | Poland | Shooting | 1988 Summer | |
| Nezha Bidouane | Morocco | Athletics | 1992 Summer, 2000 Summer, 2004 Summer | |
| Jan Bidrman | Sweden | Swimming | 1992 Summer | |
| Jane Bidstrup | Denmark | Curling | 1998 Winter | |
| Lene Bidstrup | 2002 Winter | |
| Ferdinand Bie | Norway | Athletics | 1912 Summer | |
| Matthias Bieber | Switzerland | Ice hockey | 2014 Winter | |
| Arno Bieberstein | Germany | Swimming | 1908 Summer | |
| Heidi Biebl | Alpine skiing | 1960 Winter, 1964 Winter | |
| Sepp Biebl | Speed skating | 1960 Winter | |
| Anni Biechl | Athletics | 1960 Summer | |
| Khalid El-Bied | Morocco | Football | 1984 Summer | |
| Sebastian Biederlack | Germany | Field hockey | 2004 Summer, 2008 Summer | |
| Edwin Biedermann | Great Britain | Jeu de paume | 1908 Summer | |
| Franz Biedermann | Liechtenstein | Athletics | 1968 Summer | |
| Paul Biedermann | Germany | Swimming | 2008 Summer, 2012 Summer, 2016 Summer | |
| Wolfgang Biedron | Sweden | Judo | 1980 Summer | |
| Charles Biefer | Switzerland | Water polo | 1920 Summer, 1924 Summer | |
| Maciej Biega | Poland | Speed skating | 2010 Winter | |
| Andrzej Biegalski | Boxing | 1976 Summer | |
| Andrea Bieger | West Germany | Artistic gymnastics | 1976 Summer | |
| Stefania Biegun | Poland | Cross country skiing | 1960 Winter, 1964 Winter, 1968 Winter | |
| Graham Biehl | United States | Sailing | 2008 Summer, 2012 Summer | |
| Bruno Biehler | Germany | Art competitions | 1936 Summer | |
| Cláudio Biekarck | Brazil | Sailing | 1972 Summer, 1976 Summer, 1980 Summer | |
| Kayrat Biekenov | Kazakhstan | Ski jumping | 1994 Winter | |
| Ernst Biel | Austria | Speed skating | 1956 Winter | |
| Unai Biel | Spain | Water polo | 2024 Summer | |
| Werner Biel | Saar | Rowing | 1952 Summer | |
| Yiech Biel | Refugee Olympic Team | Athletics | 2016 Summer | |
| Weronika Biela | Poland | Snowboarding | 2018 Winter, 2022 Winter | |
| Aleksander Bielaczyc | Sailing | 1972 Summer | |
| Helene Bielansky | Austria | Athletics | 1952 Summer | |
| Piotr Bielczyk | Poland | 1976 Summer | |
| Zofia Bielczyk | 1980 Summer | |
| Jan Bielecki | Denmark | 1996 Summer, 2000 Summer | |
| Karol Bielecki | Poland | Handball | 2008 Summer, 2016 Summer | |
| Maciej Bielecki | Track cycling | 2008 Summer, 2012 Summer | |
| Teo Bielefeld | United States | Rowing | 1992 Summer | |
| Ludwig Bielenberg | Germany | Sailing | 1952 Summer, 1956 Summer | |
| Alfred Bieler | Switzerland | Ice hockey | 1948 Winter | |
| Christoph Bieler | Austria | Nordic combined | 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter | |
| Franco Bieler | Italy | Alpine skiing | 1976 Winter | |
| Klaus-Dieter Bieler | West Germany | Athletics | 1976 Summer | |
| Wanda Bieler | Italy | Alpine skiing | 1976 Winter, 1980 Winter | |
| Giedrius Bieliauskas | Lithuania | Rowing | 2024 Summer | |
| Iveta Bieliková | Czechoslovakia | Basketball | 1992 Summer | |
| Roger Bielle | France | Wrestling | 1952 Summer, 1956 Summer, 1960 Summer | |
| Denise Biellmann | Switzerland | Figure skating | 1980 Winter | |
| Dorota Bielska | Poland | Field hockey | 1980 Summer | |
| Jacek Bielski | Boxing | 1996 Summer | |
| Martin Bielz | Romania | Rowing | 1960 Summer | |
| Herry Saliku Biembe | Democratic Republic of the Congo | Boxing | 2008 Summer | |
| Hedy Bienenfeld | Austria | Swimming | 1928 Summer | |
| Mateusz Bieniek | Poland | Volleyball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Michał Bieniek | Athletics | 2008 Summer | |
| Zdzisław Bieniek | Football | 1952 Summer | |
| Alberto Bienvenú | Mexico | Basketball | 1948 Summer | |
| Bernard Bienvenu | France | Football | 1948 Summer | |
| Andreas Bienz | Switzerland | Sailing | 1992 Summer | |
| Paco Bienzobas | Spain | Football | 1928 Summer | |
| Luis Biera | Argentina | Road cycling | 1984 Summer | |
| Alfons Bierebeek | Belgium | Swimming | 1952 Summer | |
| Teodor Bieregowoj | Poland | Athletics | 1936 Summer | |
| Cyril Bieri [ Wikidata ] | Switzerland | Bobsleigh | 2022 Winter | |
| Isidor Bieri | Wrestling | 1928 Summer | |
| Werner Bieri | Canoe sprint | 1952 Summer | |
| Guus Bierings | Netherlands | Road cycling | 1980 Summer | |
| Jacek Bierkowski | Poland | Fencing | 1976 Summer, 1980 Summer | |
| Alois Bierl | West Germany | Rowing | 1972 Summer | |
| Roman Bierła | Poland | Wrestling | 1980 Summer | |
| Heini Bierling | Germany | Alpine skiing | 1952 Winter | |
| Kirsti Biermann | Norway | Speed skating | 1968 Winter, 1972 Winter | |
| Hans Bjerrum | Denmark | Field hockey | 1920 Summer | |
| Anton Biersack | Germany | Ice hockey | 1956 Winter | |
| Karl Bierschel | 1952 Winter, 1956 Winter | |
| Karl Bierwirth | Weightlifting | 1928 Summer | |
| Krzysztof Bieryt | Poland | Canoe slalom | 1992 Summer, 2000 Summer, 2008 Summer | |
| Rauno Bies | Finland | Shooting | 1984 Summer | |
| Louis Biesbrouck | Netherlands | Football | 1952 Summer | |
| José Luis Biescas | Spain | Boxing | 1960 Summer | |
| Arnoud van der Biesen | Netherlands | Sailing | 1920 Summer | |
| Laryssa Biesenthal | Canada | Rowing | 1996 Summer, 2000 Summer | |
| Arie Bieshaar | Netherlands | Football | 1920 Summer | |
| Piet Biesiadecki | United States | Bobsleigh | 1956 Winter | |
| Michel Biet [ Wikidata ] | Netherlands | Artistic gymnastics | 1908 Summer | |
| Edvīns Bietags | Latvia | Wrestling | 1936 Summer | |
| Wilhelm Bietak | Austria | Figure skating | 1964 Winter, 1968 Winter | |
| Ruperto Biete | Spain | Boxing | 1924 Summer | |
| Walter Bietila | United States | Ski jumping | 1936 Winter, 1948 Winter | |
| Raymon van der Biezen | Netherlands | Cycling BMX racing | 2008 Summer, 2012 Summer | |
| Jerome Biffle | United States | Athletics | 1952 Summer | |
| Víctor Bigand | Argentina | Shooting | 1924 Summer | |
| Guram Biganishvili | Unified Team, Georgia | Sailing | 1992 Summer, 1996 Summer | |
| Eric Bigby | Australia | Athletics | 1964 Summer | |
| Steve Bigelow | United States | Swimming | 1988 Summer | |
| Antonio Biggi | Italy | Art competitions | 1936 Summer | |
| Richard Biggins | Australia | Alpine skiing | 1988 Winter | |
| Patrick Biggs | Canada | 2006 Winter, 2010 Winter | |
| Tyrell Biggs | United States | Boxing | 1984 Summer | |
| Daniel Bigham | Great Britain | Track cycling | 2024 Summer | |
| David Bigham | Athletics | 1992 Summer | |
| Maia Biginelli [ Wikidata ] | Italy | Diving | 2024 Summer | |
| Milo Bigler | Switzerland | Skeleton | 1948 Winter | |
| Samuel Bigler | United States | Weightlifting | 1976 Summer | |
| John Biglow | Rowing | 1984 Summer | |
| Bob Bignall | Australia | Football | 1956 Summer | |
| Herbert Bignall | Great Britain | Athletics | 1928 Summer | |
| Stéphan Bignet | France | Triathlon | 2000 Summer | |
| Michel Bignon | Equestrian jumping | 1924 Summer | |
| Roger Bignon | Field hockey | 1960 Summer | |
| Víctor Bignon | Chile | Boxing | 1948 Summer | |
| Armand Bigot | France | Equestrian eventing | 1972 Summer, 1984 Summer | |
| Jean-Lou Bigot | 2000 Summer | |
| Quentin Bigot | Athletics | 2012 Summer, 2020 Summer | |
| Martial Biguet | Central African Republic | 1992 Summer, 1996 Summer | |
| Fiona Bigwood | Great Britain | Equestrian dressage | 2016 Summer | |
| Odile Bihan | France | Swimming | 1980 Summer | |
| George Bihlman | United States | Athletics | 1920 Summer | |
| Marko Bijač | Croatia | Water polo | 2016 Summer, 2020 Summer, 2024 Summer | |
| Daria Bijak | Germany | Artistic gymnastics | 2008 Summer | |
| Koen Bijen | Netherlands | Field hockey | 2024 Summer | |
| Alex Bijkerk | Australia | Judo | 1972 Summer | |
| Joke Bijleveld | Netherlands | Athletics | 1960 Summer, 1964 Summer | |
| Gerrit Bijlsma | Water polo | 1952 Summer | |
| Dominique Bijotat | France | Football | 1984 Summer | |
| Sakio Bika | Cameroon | Boxing | 2000 Summer | |
| Alenka Bikar | Slovenia | Athletics | 1996 Summer, 2000 Summer, 2004 Summer | |
| Péter Bikár | Hungary | Ice hockey | 1964 Winter | |
| Berthrade Bikatal | Cameroon | Volleyball | 2016 Summer | |
| Radik Bikchentayev | Kazakhstan | Speed skating | 1994 Winter, 1998 Winter, 2002 Winter | |
| Hamide Bıkçın | Turkey | Taekwondo | 2000 Summer | |
| Yekaterina Bikert | Russia | Athletics | 2004 Summer, 2008 Summer | |
| André Bikey | Cameroon | Football | 2008 Summer | |
| Sapok Biki | Malaysia | Boxing | 1996 Summer | |
| Nebojša Bikić | Serbia and Montenegro | Swimming | 2000 Summer | |
| Jesskiel Bikidick | Cameroon | Judo | 1984 Summer | |
| Abebe Bikila | Ethiopia | Athletics | 1960 Summer, 1964 Summer, 1968 Summer | |
| Worku Bikila | 1992 Summer, 1996 Summer | |
| Yordan Bikov | Bulgaria | Weightlifting | 1972 Summer | |
| Daniel Biksadský | Slovakia | Canoe sprint | 2004 Summer | |
| Indulis Bikše | Latvia | Cross country skiing | 2018 Winter | |
| Madina Biktagirova | Unified Team, Belarus, Russia | Athletics | 1992 Summer, 1996 Summer, 2000 Summer | |
| Lyudmila Biktasheva | Russia | 2000 Summer | |
| Ruslan Biktyakov | Uzbekistan | Wrestling | 2000 Summer | |
| Mariya Bila [ Wikidata ] | Ukraine | Rhythmic gymnastics | 2004 Summer | |
| Borut Bilač | Slovenia | Athletics | 1992 Summer | |
| Britta Bilač | 1992 Summer, 1996 Summer | |
| Ali Rıza Bilal | Turkey | Rowing | 1992 Summer | |
| Mubarak Faraj Bilal [ Wikidata ] | United Arab Emirates | Swimming | 1988 Summer | |
| Ibrahim Bilali | Kenya | Boxing | 1984 Summer | |
| Suleiman Bilali | 2000 Summer, 2008 Summer | |
| Michel Bilamo | Cameroon | Football | 1984 Summer | |
| Miro Bilan | Croatia | Basketball | 2016 Summer | |
| Olexander Bilanenko | Ukraine | Biathlon | 2002 Winter, 2006 Winter, 2010 Winter | |
| Carlos Bilardo | Argentina | Football | 1960 Summer | |
| Stergios Bilas | Greece | Swimming | 2024 Summer | |
| Jim Bilba | France | Basketball | 2000 Summer | |
| Jhonny Bilbao | Venezuela | Sailing | 2008 Summer | |
| Robustiano Bilbao | Spain | Football | 1928 Summer | |
| Sabino Bilbao | 1920 Summer | |
| Benjamin Bildstein | Austria | Sailing | 2020 Summer, 2024 Summer | |
| Emil Bildstein | Germany | Water polo | 1952 Summer, 1956 Summer, 1960 Summer | |
| Abdi Bile | Somalia | Athletics | 1984 Summer, 1996 Summer | |
| Pam Bileck | United States | Artistic gymnastics | 1984 Summer | |
| Erdenebatyn Bilegsaikhan | Mongolia | Weightlifting | 2020 Summer | |
| Ahmet Bilek | Turkey | Wrestling | 1960 Summer | |
| Alexander Bílek | Czechoslovakia | Athletics | 1964 Summer | |
| Jaroslav Bílek | Road cycling | 1992 Summer | |
| Marek Bílek | Czech Republic | Athletics | 1996 Summer | |
| Roman Bílek | 2008 Summer | |
| Tetiana Bilenko | Ukraine | Table tennis | 2008 Summer, 2012 Summer, 2016 Summer | |
| Martin Biles | United States | Athletics | 1948 Summer | |
| Simone Biles | Artistic gymnastics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Lars Bilet | Norway | Wrestling | 1952 Summer | |
| Gazanfer Bilge | Turkey | 1948 Summer | |
| Tekin Bilge | Football | 1952 Summer | |
| Jock Bilger | New Zealand | Sailing | 1972 Summer, 1976 Summer | |
| Jon Bilger | 1992 Summer | |
| Sonja Bilgeri | West Germany | Cross country skiing | 1988 Winter | |
| Veronika Bilgeri | Luge | 1988 Winter | |
| Erol Bilgin | Turkey | Weightlifting | 2012 Summer | |
| Zehra Bilgin | Swimming | 2024 Summer | |
| Syed Abbas Haider Bilgrami | Pakistan | Field hockey | 2008 Summer | |
| Cvitko Bilić | Yugoslavia | Road cycling | 1968 Summer, 1972 Summer | |
| Danira Bilić | Basketball | 1988 Summer | |
| Mirjana Bilić | Artistic gymnastics | 1960 Summer | |
| Fábio Bilica | Brazil | Football | 2000 Summer | |
| Rahman Bilici | Turkey | Wrestling | 2012 Summer | |
| Dimitrios Biliouris | Greece | Cross country skiing | 1984 Winter | |
| Simonas Bilis | Lithuania | Swimming | 2016 Summer, 2020 Summer | |
| Matias Biljaka | Croatia | Water polo | 2024 Summer | |
| Dagmar Bílková | Czechoslovakia, Czech Republic | Shooting | 1988 Summer, 1992 Summer, 1996 Summer | |
| Errol Bill | Australia | Field hockey | 1960 Summer | |
| Armand Billard | France | Diving | 1928 Summer | |
| Émile Billard | Sailing | 1900 Summer | |
| Lionel Billas | Athletics | 1952 Summer | |
| Cindy Billaud | 2016 Summer | |
| Poul Bille-Holst | Denmark | Art competitions | 1936 Summer | |
| John Biller | United States | Athletics | 1904 Summer, 1908 Summer | |
| Uwe Billerbeck | Germany | Artistic gymnastics | 1996 Summer | |
| Sandrine Billiet | Cape Verde | Judo | 2020 Summer | |
| Cawas Billimoria | India | 1992 Summer | |
| Amar Singh Billing | Road cycling, Track cycling | 1964 Summer | |
| Robert Billingham | United States | Sailing | 1988 Summer | |
| Brook Billings | Volleyball | 2004 Summer | |
| Charles W. Billings | Shooting | 1912 Summer | |
| Nort Billings | Cross country skiing | 1932 Winter | |
| Geoff Billington | Great Britain | Equestrian jumping | 1996 Summer, 2000 Summer | |
| Greg Billington | United States | Triathlon | 2016 Summer | |
| Teddy Billington | Track cycling | 1904 Summer | |
| Chad Billins | Ice hockey | 2018 Winter | |
| Arne Billkvam | Norway | 1988 Winter, 1992 Winter, 1994 Winter | |
| Martín Billoch | Argentina | Sailing | 1996 Summer | |
| Mathieu Billot | France | Equestrian jumping | 2020 Summer | |
| Nadiya Billova | Ukraine | Biathlon | 1994 Winter | |
| Michael Billwein | Austria | Modern pentathlon | 1984 Summer | |
| Sohen Biln | Canada | Rowing | 1960 Summer | |
| Ray Bilney | Australia | Road cycling | 1964 Summer | |
| Jean-Claude Biloa | Cameroon | Wrestling | 1980 Summer | |
| Alexandre Bilodeau | Canada | Freestyle skiing | 2006 Winter, 2010 Winter, 2014 Winter | |
| Charlie Bilodeau | Figure skating | 2018 Winter | |
| Mathieu Bilodeau | Athletics | 2016 Summer, 2020 Summer | |
| Yves Bilodeau | Cross country skiing | 1988 Winter, 1992 Winter, 1998 Winter | |
| Caitlin Bilodeaux | United States | Fencing | 1988 Summer, 1992 Summer | |
| Daria Bilodid | Ukraine | Judo | 2020 Summer, 2024 Summer | |
| Gennadiy Bilodid | 2000 Summer, 2004 Summer, 2008 Summer | |
| Yuriy Bilonoh | Athletics | 2000 Summer, 2004 Summer, 2008 Summer | |
| Ivan Bilosiuk | Cross country skiing | 2006 Winter | |
| Olena Bilosiuk | Biathlon | 2010 Winter, 2014 Winter, 2022 Winter | |
| Charles Bilot | France | Football | 1908 Summer | |
| Lorenzo Bilotti | Italy | Bobsleigh | 2018 Winter, 2022 Winter | |
| Finn Bilous | New Zealand | Freestyle skiing | 2018 Winter, 2022 Winter | |
| Serhiy Biloushchenko | Ukraine | Rowing | 2004 Summer, 2008 Summer | |
| Olena Bilousivska | Figure skating | 1994 Winter | |
| Dmitry Bilozerchev | Soviet Union | Artistic gymnastics | 1988 Summer | |
| Lesia Bilozub | Ukraine | Speed skating | 1998 Winter | |
| Billy Bilsland | Great Britain | Road cycling | 1968 Summer | |
| Astra Biltauere | Soviet Union | Volleyball | 1964 Summer | |
| Nataliya Bilukha | Ukraine | Archery | 1996 Summer | |
| Laurence Bily | France | Athletics | 1988 Summer, 1992 Summer | |
| Zinetula Bilyaletdinov | Soviet Union | Ice hockey | 1980 Winter, 1984 Winter | |
| Jaroslav Bím | Czechoslovakia | Artistic gymnastics | 1956 Summer, 1960 Summer | |
| Josef Bím | Military ski patrol, Nordic combined, Ski jumping | 1924 Winter, 1928 Winter | |
| Krali Bimbalov | Bulgaria | Wrestling | 1960 Summer, 1964 Summer | |
| Clara Bimbocci | Italy | Artistic gymnastics | 1936 Summer | |
| Thomas Bimis | Greece | Diving | 2000 Summer, 2004 Summer | |
| Klenie Bimolt | Netherlands | Swimming | 1964 Summer, 1968 Summer | |
| Edmond Bimont | France | Athletics | 1920 Summer | |
| Mira Bimperling | Germany | Rhythmic gymnastics | 2012 Summer | |
| Asaf Bimro | Israel | Athletics | 2004 Summer | |
| Jennie Bimson | Great Britain | Field hockey | 2008 Summer | |
| Saif Bin Futtais | United Arab Emirates | Shooting | 2016 Summer, 2020 Summer | |
| Raja bin Ngah Ali | Malaya | Athletics | 1956 Summer | |
| Wu Bin [ Wikidata ] | China | Fencing | 2024 Summer | |
| Stanislav Binar | Czechoslovakia | Art competitions | 1948 Summer | |
| Binard | Belgium | Track cycling | 1920 Summer | |
| Angelo Binaschi | Italy | Football | 1912 Summer | |
| Charles Binaux | France | Cross country skiing | 1956 Winter | |
| Mete Binay | Turkey | Weightlifting | 2012 Summer | |
| Claudio Bincaz | Argentina | Sailing | 1936 Summer | |
| Lloyd Binch | Great Britain | Track cycling | 1960 Summer | |
| Leonardo Binchi | Italy | Water polo | 2000 Summer, 2004 Summer, 2008 Summer | |
| Pierangelo Bincoletto | Track cycling | 1980 Summer | |
| Paul Bindel | Germany | Art competitions | 1936 Summer | |
| Hubert Bindels | Belgium | Wrestling | 1988 Summer | |
| Aranka Binder | Independent Olympians, Serbia and Montenegro | Shooting | 1992 Summer, 1996 Summer, 2000 Summer | |
| Christian Binder | Austria | Sailing | 1988 Summer, 1992 Summer | |
| Herbert Binder | Switzerland | Shooting | 1984 Summer | |
| Hans Binder | Austria | Rowing | 1936 Summer | |
| Mathias Binder | Switzerland | 1996 Summer | |
| Ottó Binder | Hungary | Equestrian eventing | 1928 Summer | |
| Edson Bindilatti | Brazil | Bobsleigh | 2002 Winter, 2006 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Rudolf G. Binding | Germany | Art competitions | 1928 Summer | |
| Jenny Bindon | New Zealand | Football | 2008 Summer, 2012 Summer | |
| Tyler Bindon | 2024 Summer | |
| Abhinav Bindra | India | Shooting | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Karsten Bindrich | Germany | 1996 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Serge Bindy | Switzerland | Modern pentathlon | 1976 Summer | |
| Martin Binedell | South Africa | Swimming | 2020 Summer | |
| Bourcard Binelli | Cameroon | Wrestling | 1980 Summer | |
| Jürg Biner | Switzerland | Freestyle skiing | 1992 Winter, 1994 Winter | |
| Chris Binet | Belgium | Shooting | 1972 Summer, 1976 Summer | |
| Émile Binet | Athletics | 1936 Summer | |
| Saulius Binevičius | Lithuania | Swimming | 2000 Summer, 2004 Summer, 2008 Summer | |
| Maame Biney | United States | Short track speed skating | 2018 Winter, 2022 Winter | |
| Gary Binfield | Great Britain | Swimming | 1988 Summer | |
| Kelsey Bing | United States | Field hockey | 2024 Summer | |
| Thomas Bing | Germany | Cross country skiing | 2014 Winter, 2018 Winter | |
| Wilfried Bingangoye | Gabon | Athletics | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Kazım Bingen | Turkey | Road cycling | 1936 Summer | |
| David Bingham | Australia | Sailing | 1960 Summer | |
| Dennis Bingham | Great Britain | Polo | 1924 Summer | |
| Khamica Bingham | Canada | Athletics | 2016 Summer, 2020 Summer | |
| Michael Bingham | Great Britain | 2008 Summer | |
| He Binghan [ Wikidata ] | China | Freestyle skiing | 2022 Winter | |
| Norman Bingley | Great Britain | Sailing | 1908 Summer | |
| Amanda Bingson | United States | Athletics | 2012 Summer | |
| Bino Bini | Italy | Fencing | 1924 Summer, 1928 Summer | |
| Henri Bini | Monaco | 1960 Summer | |
| Armand Biniakounou | Republic of the Congo | Athletics | 1988 Summer, 1992 Summer | |
| Klemens Biniakowski | Poland | 1928 Summer, 1936 Summer | |
| Boudewijn Binkhorst | Netherlands | Sailing | 1968 Summer, 1980 Summer, 1984 Summer | |
| Art Binkowski | Canada | Boxing | 2000 Summer | |
| Jerzy Bińkowski | Poland | Basketball | 1980 Summer | |
| Dirkie Binneman | South Africa | Road cycling | 1948 Summer | |
| Hennie Binneman | 1936 Summer | |
| Ben Binnendijk | Netherlands | Rowing | 1952 Summer | |
| Walther Binner | Germany | Swimming | 1912 Summer | |
| Darin Binning | United States | Biathlon | 1988 Winter | |
| Max Binnington | Australia | Athletics | 1976 Summer | |
| Steve Binns | Great Britain | 1988 Summer | |
| Beni Bertrand Binobagira | Burundi | Swimming | 2012 Summer | |
| Léon Binoche | France | Rugby | 1900 Summer | |
| Josh Binstock | Canada | Beach volleyball | 2012 Summer, 2016 Summer | |
| Robert Bintz | Luxembourg | Road cycling | 1948 Summer | |
| K. M. Binu | India | Athletics | 2004 Summer | |
| Michael Binzer | Denmark | Cross country skiing | 1992 Winter, 1994 Winter, 1998 Winter | |
| Ibrahim Biogradlić | Yugoslavia | Football | 1956 Summer | |
| Ismar Biogradlić | Yugoslavia, Bosnia and Herzegovina | Luge | 1992 Winter, 1998 Winter | |
| Didier Bionaz | Italy | Biathlon | 2022 Winter | |
| Fabrizio Biondi | Rowing | 1976 Summer | |
| Matt Biondi | United States | Swimming | 1984 Summer, 1988 Summer, 1992 Summer | |
| Tonio Biondini | Italy | Cross country skiing | 1972 Winter, 1976 Winter | |
| Ron Biondo | United States | Short track speed skating | 2002 Winter | |
| Fabian Biörck | Sweden | Artistic gymnastics | 1920 Summer | |
| Alexandre Bioussa | France | Rugby | 1924 Summer | |
| Lucian Biquet | Belgium | Boxing | 1928 Summer | |
| Mihai Bîră | Romania | Alpine skiing | 1948 Winter, 1952 Winter | |
| Mihai Bîră Jr. | 1984 Winter | |
| Birabongse Bhanudej | Thailand | Sailing | 1956 Summer, 1960 Summer, 1964 Summer, 1972 Summer | |
| Harishchandra Birajdar | India | Wrestling | 1972 Summer | |
| Shahuraj Birajdar | Boxing | 1988 Summer | |
| Itamar Biran | Israel | Alpine skiing | 2018 Winter | |
| Emanuele Birarelli | Italy | Volleyball | 2008 Summer, 2012 Summer, 2016 Summer | |
| Małgorzata Birbach | Poland | Athletics | 1992 Summer | |
| Stefan Birčević | Serbia | Basketball | 2016 Summer | |
| Aage Birch | Denmark | Sailing | 1952 Summer, 1960 Summer, 1968 Summer | |
| Angela Birch | Fiji | Swimming | 1988 Summer | |
| Chloe Birch | Great Britain | Badminton | 2020 Summer | |
| Halvor Birch | Denmark | Artistic gymnastics | 1912 Summer | |
| Khem Birch | Canada | Basketball | 2024 Summer | |
| Ryan Birch | Great Britain | Judo | 1992 Summer, 1996 Summer | |
| Samuel Birch | Liberia | Athletics | 1988 Summer | |
| Walter Birch | Great Britain | Bobsleigh | 1928 Winter | |
| Paul Bircher | Rowing | 1948 Summer | |
| Gustaf Birch-Lindgren | Sweden | Art competitions | 1932 Summer | |
| Andrew Bird | New Zealand | Rowing | 1988 Summer | |
| Elizabeth Bird | Great Britain | Athletics | 2020 Summer, 2024 Summer | |
| Gerald Bird | West Indies Federation | Sailing | 1960 Summer | |
| Ian Bird | Canada | Field hockey | 1988 Summer, 2000 Summer | |
| Kieran Bird | Great Britain | Swimming | 2020 Summer, 2024 Summer | |
| Larry Bird | United States | Basketball | 1992 Summer | |
| Mary Bird | Alpine skiing | 1936 Winter | |
| Stephen Bird | Australia | Canoe sprint | 2012 Summer, 2016 Summer | |
| Sue Bird | United States | Basketball | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Pauline Bird-Hart | Great Britain | Rowing | 1976 Summer, 1980 Summer | |
| Dane Bird-Smith | Australia | Athletics | 2016 Summer | |
| Adrián Bíreš | Czechoslovakia | Alpine skiing | 1988 Winter | |
| Marian Bíreš | 1992 Winter | |
| Sævar Birgisson | Iceland | Cross country skiing | 2014 Winter | |
| Steinar Birgisson | Handball | 1984 Summer | |
| Daniel Birgmark | Sweden | Sailing | 2004 Summer, 2008 Summer, 2012 Summer | |
| János Biri | Hungary | Football | 1924 Summer | |
| Kinaua Biribo | Kiribati | Judo | 2020 Summer | |
| Iliana Biridakis | Jordan | Archery | 1988 Summer | |
| Yakup Kadri Birinci | Turkey | Alpine skiing | 1984 Winter, 1988 Winter, 1992 Winter | |
| Massimo Birindelli | Italy | Shooting | 1992 Summer | |
| Jonah Birir | Kenya | Athletics | 1992 Summer | |
| Matthew Birir | 1992 Summer, 1996 Summer | |
| Nikolaos Biris | Greece | Wrestling | 1936 Summer, 1948 Summer | |
| José Biriukov | Spain | Basketball | 1988 Summer, 1992 Summer | |
| Yuliia Biriukova | Ukraine | Road cycling | 2024 Summer | |
| Onur Cavit Biriz | Turkey | Sailing | 2016 Summer, 2020 Summer | |
| Johannes Birk | Denmark | Artistic gymnastics | 1920 Summer | |
| Dénes Birkás | Hungary | Field hockey | 1936 Summer | |
| Gebre Birkay | Ethiopia | Athletics | 1956 Summer | |
| Giorgia Birkeland | United States | Speed skating | 2022 Winter | |
| Lars Helge Birkeland | Norway | Biathlon | 2018 Winter | |
| Stefanie Birkelbach | West Germany | Cross country skiing | 1988 Winter | |
| Halvor Birkeland | Norway | Sailing | 1920 Summer | |
| Rasmus Birkeland | 1920 Summer | |
| Gisela Birkemeyer | Germany | Athletics | 1956 Summer, 1960 Summer | |
| Lillian Birkenhead | Great Britain | Swimming | 1920 Summer | |
| Robert Birker | Germany | Road cycling | 1912 Summer | |
| Andrew Birkett [ Wikidata ] | South Africa | Canoe sprint | 2024 Summer | |
| Arthur Birkett | Great Britain | Cricket | 1900 Summer | |
| Franz Birkfellner | Austria | Judo | 2000 Summer | |
| Leon Birkholc | Poland | Rowing | 1928 Summer | |
| Damien Birkinhead | Australia | Athletics | 2016 Summer | |
| Marie Birkl | Sweden | Snowboarding | 1998 Winter | |
| Nicholas Birkmyre | Great Britain | Rowing | 1960 Summer | |
| Tomás Birkner de Miguel | Argentina | Alpine skiing | 2022 Winter | |
| Jorge Birkner Ketelhohn | 2014 Winter | |
| Carolina Birkner | 1988 Winter | |
| Ignacio Birkner | 1988 Winter | |
| Jorge Birkner | 1984 Winter, 1988 Winter | |
| Magdalena Birkner | 1984 Winter, 1988 Winter | |
| Nicola Birkner | Germany | Sailing | 2000 Summer | |
| Nada Birko | Yugoslavia | Cross country skiing | 1952 Winter, 1956 Winter | |
| Laurie Birks | Australia | Boxing | 1948 Summer | |
| Ion Bîrlădeanu | Romania | Canoe sprint | 1980 Summer | |
| Heinfried Birlenbach | Germany, West Germany | Athletics | 1964 Summer, 1968 Summer, 1972 Summer | |
| Ekaterina Birlova | Russia | Beach volleyball | 2012 Summer, 2016 Summer | |
| Georgios Birmbilis | Greece | Athletics | 1968 Summer | |
| Collis Birmingham | Australia | 2008 Summer, 2012 Summer | |
| Warren Birmingham | Field hockey | 1988 Summer, 1992 Summer | |
| Andreas Birnbacher | Germany | Biathlon | 2010 Winter, 2014 Winter | |
| Axel Birnbaum | Austria | Fencing | 1988 Summer | |
| Udo Birnbaum | Modern pentathlon, Fencing | 1960 Summer, 1964 Summer, 1968 Summer | |
| Werner Birnbaum | Australia | Artistic gymnastics | 1984 Summer | |
| Michal Birner | Czech Republic | Ice hockey | 2018 Winter | |
| Ágnes Bíró | Hungary | Swimming | 1936 Summer | |
| Anton Biró | Romania | Ice hockey | 1964 Winter | |
| Blanka Bíró | Hungary | Handball | 2020 Summer, 2024 Summer | |
| Gyula Bíró | Football | 1912 Summer | |
| Imre Bíró | Handball | 1988 Summer, 1992 Summer | |
| László Bíró | Wrestling | 1980 Summer, 1988 Summer | |
| Patrick Birocheau | France | Table tennis | 1988 Summer | |
| Gilles Biron | Athletics | 2020 Summer, 2024 Summer | |
| Péter Biros | Hungary | Water polo | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Bob Birrell | Great Britain | Athletics | 1960 Summer | |
| Joe Birrell | 1948 Summer | |
| Roger Birrer | Switzerland | Swimming | 1984 Summer | |
| Vladimir Bîrsa | Moldova | Weightlifting | 1996 Summer | |
| Helga Bîrsan | Romania | Artistic gymnastics | 1952 Summer | |
| Ștefan Birtalan | Handball | 1972 Summer, 1976 Summer, 1980 Summer | |
| Henry Birtles | Great Britain | Rugby | 1900 Summer | |
| Walter Birtles | Canada | Basketball | 1964 Summer | |
| Jacob Birtwhistle | Australia | Triathlon | 2020 Summer | |
| Margaret Birtwistle | Great Britain | Athletics | 1948 Summer | |
| Krzysztof Birula-Białynicki | Poland | Ice hockey | 1972 Winter | |
| Grace Birungi | Uganda | Athletics | 1996 Summer, 2000 Summer | |
| Anna Biryukova | Russia | 1996 Summer | |
| Vera Biryukova | Rhythmic gymnastics | 2016 Summer | |
| Tatyana Biryulina | Soviet Union | Athletics | 1980 Summer | |
| Mihai Bîrzu | Romania | Archery | 1980 Summer | |
| Ketija Birzule | Latvia | Sailing | 2016 Summer | |
| Gilio Bisagno | Italy | Swimming | 1920 Summer | |
| Doris Bisang | Switzerland | Athletics | 1972 Summer | |
| Valery Bisarnov | Soviet Union | Rowing | 1972 Summer | |
| Kiara Bisaro | Canada | Cycling mountain bike | 2004 Summer | |
| Victor Bisbal | Puerto Rico | Boxing | 2004 Summer | |
| Stelios Bisbas | Greece | Athletics | 1996 Summer | |
| Harry Bisbey | United States | Water polo | 1952 Summer | |
| Margaret Bisbrown | Great Britain | Diving | 1948 Summer | |
| Fernando Biscaccianti | Italy | Art competitions | 1928 Summer | |
| Pauline Biscarat | France | Rugby sevens | 2016 Summer | |
| Gwendal Bisch [ Wikidata ] | Diving | 2024 Summer | |
| Luca Bischeri | Italy | Baseball | 2004 Summer | |
| Adam Bischof | Austria | Field hockey | 1948 Summer | |
| Frank-Peter Bischof | East Germany | Canoe sprint | 1976 Summer, 1980 Summer | |
| Martina Bischof | 1980 Summer | |
| Ole Bischof | Germany | Judo | 2008 Summer, 2012 Summer | |
| Annemarie Bischofberger | Switzerland | Alpine skiing | 1980 Winter | |
| Marc Bischofberger | Freestyle skiing | 2018 Winter | |
| Arthur Bischoff | Diving | 1924 Summer, 1928 Summer | |
| Fritz Bischoff | Germany | Sailing | 1936 Summer | |
| Gilbert Bischoff | Switzerland | Road cycling | 1972 Summer | |
| Peter Bischoff | Germany | Sailing | 1936 Summer | |
| Sabine Bischoff | West Germany | Fencing | 1984 Summer | |
| Federica Biscia | Italy | Swimming | 2000 Summer | |
| Charles Biscoe | Great Britain | Fencing | 1924 Summer, 1928 Summer | |
| Maurice B. Biscoe | United States | Art competitions | 1932 Summer | |
| Tullio Biscuola | Italy | Athletics | 1924 Summer | |
| Andy Bisek | United States | Wrestling | 2016 Summer | |
| Juan Biselach | Peru | Football | 1960 Summer | |
| Adolfo Bisellach | Argentina | Fencing | 1964 Summer | |
| Luisella Bisello | Italy | Diving | 1992 Summer | |
| Milan Biševac | Serbia and Montenegro | Football | 2004 Summer | |
| Erik Bisgaard | Denmark | Rowing | 1912 Summer | |
| Sokol Bishanaku | Albania | Weightlifting | 1992 Summer | |
| Ibrahim Bisharat | Jordan | Equestrian jumping | 2004 Summer, 2008 Summer, 2012 Summer, 2020 Summer | |
| Ahmad Al-Bishi | Saudi Arabia | Football | 1984 Summer | |
| Hamdan Al-Bishi | Athletics | 2000 Summer, 2004 Summer | |
| Hamed Al-Bishi | 2000 Summer | |
| Hussein Al-Bishi | Football | 1984 Summer | |
| Mohamed Fahd Al-Bishi | Athletics | 1988 Summer | |
| Mohamed Hamed Al-Bishi | 1996 Summer, 2000 Summer | |
| Saad Al-Bishi | 1976 Summer | |
| Jagdish Bishnoi | India | 2000 Summer | |
| Abby Bishop | Australia | Basketball | 2012 Summer | |
| Barbara Bishop | Barbados | Athletics | 1972 Summer | |
| Carole Bishop | Canada | Volleyball | 1976 Summer | |
| Catherine Bishop | Great Britain | Rowing | 1996 Summer, 2000 Summer, 2004 Summer | |
| Diana Bishop | 1976 Summer | |
| Isabel Bishop | United States | Art competitions | 1932 Summer | |
| Isobel Bishop | Australia | Water polo | 2016 Summer | |
| Jack Bishop | Great Britain | Track cycling | 1908 Summer | |
| Naomi Bishop | Diving | 1988 Summer, 1992 Summer | |
| Nikki Bishop | Australia | Equestrian eventing | 1996 Summer | |
| Ralph Bishop | United States | Basketball | 1936 Summer | |
| Richard Bishop | Artistic gymnastics | 1932 Summer | |
| Richard Bishop | Art competitions | 1932 Summer | |
| Ronald Bishop | Great Britain | Archery | 1972 Summer | |
| Steele Bishop | Australia | Track cycling | 1972 Summer | |
| Thomas Bishop | Great Britain | Rowing | 1976 Summer | |
| Melissa Bishop-Nriagu | Canada | Athletics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Madhumita Bisht | India | Badminton | 1992 Summer | |
| Nadia Bisiach | Australia | Table tennis | 1988 Summer | |
| Alex Bisiak | Peru | Weightlifting | 1948 Summer | |
| Matteo Bisiani | Italy | Archery | 1996 Summer, 2000 Summer | |
| Tahir Bisić | Bosnia and Herzegovina | Alpine skiing | 2002 Winter | |
| Enrico Bisio | Italy | Field hockey | 1960 Summer | |
| Chrysi Biskitzi | Greece | Rowing | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Mateusz Biskup | Poland | 2016 Summer, 2020 Summer, 2024 Summer | |
| Eugeniusz Biskupski | Athletics | 1976 Summer | |
| Seema Bisla | India | Wrestling | 2020 Summer | |
| Hasso von Bismarck | Germany | Bobsleigh | 1932 Winter | |
| Stefani Bismpikou | Greece | Artistic gymnastics | 2004 Summer, 2008 Summer | |
| Daniel Bispo | Brazil | Boxing | 1996 Summer | |
| Celeste Bissardella | Italy | Ice hockey | 2006 Winter | |
| Vittorio Bissaro | Sailing | 2016 Summer | |
| Minke Bisschops | Netherlands | Athletics | 2024 Summer | |
| Ralf Bißdorf | Germany | Fencing | 2000 Summer, 2004 Summer | |
| Stefan Bissegger | Switzerland | Track cycling, Road cycling | 2020 Summer, 2024 Summer | |
| Stanley Bissell | Great Britain | Wrestling | 1948 Summer | |
| Éva Bisséni [ Wikidata ] | France | Judo | 2004 Summer | |
| Catriona Bisset | Australia | Athletics | 2020 Summer, 2024 Summer | |
| Sonia Bisset | Cuba | 2000 Summer, 2004 Summer | |
| Brenden Bissett | Canada | Field hockey | 2016 Summer, 2020 Summer | |
| Cecil Bissett | Zimbabwe | Boxing | 1928 Summer | |
| David Bissett | Canada | Field hockey | 1976 Summer, 1984 Summer | |
| David Bissett | Bobsleigh | 2006 Winter, 2010 Winter, 2014 Winter | |
| Ron Bissett | Basketball | 1956 Summer | |
| Moritz von Bissing | Germany | Tennis | 1908 Summer | |
| John Bissinger | United States | Artistic gymnastics | 1904 Summer | |
| Davy Bisslik | Aruba | Swimming | 2000 Summer, 2004 Summer | |
| Anni Bissø | Denmark | Shooting | 1996 Summer, 2000 Summer | |
| Enrico Bisso | Italy | Swimming | 1976 Summer | |
| Federico Bisson | Athletics | 1960 Summer | |
| Ivan Bisson | Basketball | 1972 Summer, 1976 Summer | |
| Deepak Bista | Nepal | Taekwondo | 2008 Summer | |
| Mario Bistoletti | Argentina | Water polo | 1928 Summer | |
| Franz Bistricky | Austria | Handball | 1936 Summer | |
| Turpal Bisultanov | Denmark | Wrestling | 2024 Summer | |
| Soma Biswas | India | Athletics | 2000 Summer, 2004 Summer | |
| Éva Biszku | Hungary | Volleyball | 1976 Summer | |
| Zsuzsa Biszku | 1976 Summer | |
| Sylvain Bitan | Tunisia | Athletics | 1960 Summer | |
| Emmanuel Bitanga | Cameroon | 1984 Summer | |
| Vera Bitanji | Albania | 1996 Summer | |
| Sameera Al-Bitar | Bahrain | Swimming | 2004 Summer, 2008 Summer | |
| Abdelhakim Bitat | Algeria | 1980 Summer | |
| Romualdas Bitė | Soviet Union | Athletics | 1972 Summer | |
| Flevitus Bitegeko | Tanzania | Boxing | 1972 Summer | |
| Nalbert Bitencourt | Brazil | Volleyball | 1996 Summer, 2000 Summer, 2004 Summer | |
| Stuart Bithell | Great Britain | Sailing | 2012 Summer, 2020 Summer | |
| Anna Bitieva | Azerbaijan | Rhythmic gymnastics | 2008 Summer | |
| Woo Bit-na [ Wikidata ] | South Korea | Handball | 2024 Summer | |
| Ezequiel Bitok | Kenya | Athletics | 1996 Summer | |
| Paul Bitok | 1992 Summer, 1996 Summer | |
| Sosthenes Bitok | 1984 Summer | |
| Gabriela Bitolo | Brazil | Handball | 2020 Summer, 2024 Summer | |
| Spyridon Bitsakis | Greece | Swimming | 2000 Summer, 2004 Summer | |
| Dimitrios Bitsakos | Water polo | 1992 Summer | |
| Noah Bitsch | Germany | Karate | 2020 Summer | |
| Aladár Bitskey | Hungary | Swimming | 1928 Summer | |
| Zoltán Bitskey | 1924 Summer | |
| Mike Bitten | Canada | Badminton | 1992 Summer | |
| Carlos Bittencourt | Brazil | Sailing | 1948 Summer | |
| Johannes Bitter | Germany | Handball | 2008 Summer, 2020 Summer | |
| Urs Bitterli | Switzerland | Rowing | 1968 Summer | |
| Chuck Bittick | United States | Water polo | 1960 Summer | |
| René Bittinger | France | Road cycling | 1976 Summer | |
| Erwin Bittmann | Austria | Rowing | 1948 Summer | |
| Armin Bittner | West Germany, Germany | Alpine skiing | 1988 Winter, 1992 Winter, 1994 Winter | |
| Bodo Bittner | West Germany | Bobsleigh | 1976 Winter | |
| Dominik Bittner | Germany | Ice hockey | 2022 Winter | |
| Klaus Bittner | Rowing | 1960 Summer, 1964 Summer | |
| Monika Bittner | Ice hockey | 2014 Winter | |
| Nicole Bittner | Rhythmic gymnastics | 1996 Summer | |
| Hermann Bitz | West Germany | Football | 1972 Summer | |
| Blandine Bitzner-Ducret | France | Athletics | 1996 Summer | |
| Karin Biva | Belgium | Shooting | 1988 Summer, 1992 Summer | |
| Daniel Biveson | Sweden | Snowboarding | 2002 Winter, 2006 Winter, 2010 Winter | |
| Victor Bivol | Moldova | Judo | 2000 Summer, 2004 Summer | |
| Serge Biwole Abolo | Cameroon | 1996 Summer | |
| Amos Biwott | Kenya | Athletics | 1968 Summer, 1972 Summer | |
| Gideon Biwott | 1996 Summer | |
| Stanley Biwott | 2016 Summer | |
| Dallas Bixler | United States | Artistic gymnastics | 1932 Summer | |
| Kimitene Biyago | Chad | Athletics | 1996 Summer | |
| Janaka Biyanwila | Sri Lanka | Diving | 1996 Summer | |
| Arthur Biyarslanov | Canada | Boxing | 2016 Summer | |
| Mustapha El Biyaz | Morocco | Football | 1984 Summer | |
| Lynn Biyendolo | United States | 2020 Summer, 2024 Summer | |
| Juan Bizama | Chile | Shooting | 1952 Summer | |
| Xavier Bizard | France | Equestrian jumping | 1936 Summer | |
| Orrin Bizer | United States | Rugby sevens | 2024 Summer | |
| Alexandru Bizim | Romania | Athletics | 1960 Summer | |
| Antonella Bizioli | Italy | 1988 Summer | |
| Rastislav Bizub | Czechoslovakia, Czech Republic | Swimming | 1992 Summer, 1996 Summer | |
| Frank Bizzoni | Italy | Track cycling | 1904 Summer | |
| Ivar Bjare | Sweden | Luge | 1968 Winter | |
| Lára Hrund Bjargardóttir | Iceland | Swimming | 2000 Summer, 2004 Summer | |
| Ásmundur Bjarnason | Athletics | 1948 Summer, 1952 Summer | |
| Paul Bjarnason | Canada | Weightlifting | 1968 Summer | |
| Rina Bjarnason [ Wikidata ] | Australia | Handball | 2000 Summer | |
| Sigurður Bjarnason | Iceland | 1992 Summer | |
| Đurđica Bjedov | Yugoslavia | Swimming | 1968 Summer | |
| Mira Bjedov | Basketball | 1980 Summer | |
| Ana Bjelica | Serbia | Volleyball | 2020 Summer | |
| Novica Bjelica | 2008 Summer | |
| Bojana Bjeljac | Croatia | Athletics | 2020 Summer, 2024 Summer | |
| Annette Bjelkevik | Norway | Speed skating | 2006 Winter | |
| Hedvig Bjelkevik | 2006 Winter | |
| Christine Bjerendal | Sweden | Archery | 2012 Summer, 2016 Summer, 2020 Summer | |
| Gert Bjerendal | 1984 Summer, 1988 Summer | |
| Göran Bjerendal | 1980 Summer, 1984 Summer, 1988 Summer, 1996 Summer | |
| Mikkel Bjerg | Denmark | Road cycling | 2024 Summer | |
| Svend Erik Bjerg | Road cycling, Track cycling | 1968 Summer, 1972 Summer | |
| Tobias Bjerg | Swimming | 2020 Summer | |
| Desiree Bjerke | Norway | Skeleton | 2006 Winter, 2010 Winter | |
| Ingvald Bjerke | Boxing | 1928 Summer | |
| Ole Bjerke | Shooting | 1912 Summer | |
| Håvard Bjerkeli | Cross country skiing | 2002 Winter | |
| Egil Bjerklund | Ice hockey | 1952 Winter, 1964 Winter | |
| Kristine Bjerknes | Rowing | 1996 Summer | |
| Susann Goksør Bjerkrheim | Handball | 1992 Summer, 1996 Summer, 2000 Summer | |
| Fredrik Bjerrehuus | Denmark | Wrestling | 2020 Summer | |
| Torben Bjerre-Poulsen | Fencing | 1972 Summer | |
| Jo Inge Bjørnebye | Norway | Ski jumping | 1968 Winter, 1972 Winter | |
| John Bjørnstad | Rowing | 1912 Summer | |
| Steinar Bjølbakk | Ice hockey | 1968 Winter, 1972 Winter | |
| Lars Bjønness | Rowing | 1984 Summer, 1988 Summer, 1992 Summer | |
| Erlend Bjøntegaard | Biathlon | 2018 Winter | |
| Per Bjørang | Speed skating | 1972 Winter | |
| Emil Bjorch [ Wikidata ] | France | Water polo | 2024 Summer | |
| Stian Bjørge | Norway | Speed skating | 2002 Winter | |
| Marit Bjørgen | Cross country skiing | 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter | |
| Björgvin Björgvinsson | Iceland | Handball | 1972 Summer | |
| Björgvin Björgvinsson | Alpine skiing | 2002 Winter, 2006 Winter, 2010 Winter | |
| Gunnar Björk | Sweden | Road cycling | 1912 Summer | |
| Inger Björkbom | Biathlon | 1992 Winter | |
| Daniel Björkgren | Athletics | 1972 Summer | |
| Nils Björklöf | Finland | Canoe sprint | 1948 Summer | |
| Elsa Björklund | Sweden | Swimming | 1912 Summer | |
| Garry Bjorklund | United States | Athletics | 1976 Summer | |
| Herman Bjørklund | Norway | Tennis | 1912 Summer | |
| Hugo Björklund | Sweden | Wrestling | 1912 Summer | |
| Jens Björklund | Weightlifting | 1936 Summer | |
| Joachim Björklund | Football | 1992 Summer | |
| Rolf Björklund | Finland | Canoe sprint | 1960 Summer | |
| Carl Björkman | Sweden | Shooting | 1912 Summer | |
| Jonas Björkman | Tennis | 1996 Summer, 2004 Summer, 2008 Summer | |
| Rube Bjorkman | United States | Ice hockey | 1952 Winter | |
| Tönnes Björkman | Sweden | Shooting | 1912 Summer | |
| Waldemar Björkstén | Finland | Sailing | 1912 Summer | |
| Lars Sigurd Björkström | Brazil | 1980 Summer | |
| Erik Bjørkum | Norway | 1988 Summer | |
| Risto Björlin | Finland | Wrestling | 1964 Summer, 1968 Summer, 1972 Summer | |
| Evert Björn | Sweden | Athletics | 1908 Summer, 1912 Summer | |
| Kai Bjorn | Canada | Sailing | 2000 Summer | |
| Kristian Bjørn | Norway | Cross country skiing | 1948 Winter | |
| Lasse Björn | Sweden | Ice hockey | 1952 Winter, 1956 Winter, 1960 Winter | |
| Nathalie Björn | Football | 2020 Summer | |
| Peter Bjorn | Canada | Sailing | 1972 Summer | |
| Torgeir Bjørn | Norway | Cross country skiing | 1988 Winter | |
| Tyler Bjorn | Canada | Sailing | 2012 Summer | |
| Inger Bjørnbakken | Norway | Alpine skiing | 1956 Winter, 1960 Winter | |
| Dag Bjørndalen | Biathlon | 1998 Winter | |
| Ole Einar Bjørndalen | Biathlon, Cross country skiing | 1994 Winter, 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter | |
| Håkan Björne | Sweden | Volleyball | 1988 Summer | |
| Harry Bjørnholm | Denmark | Modern pentathlon | 1920 Summer | |
| Hannes Björninen | Finland | Ice hockey | 2022 Winter | |
| Jesper Björnlund | Sweden | Freestyle skiing | 2006 Winter, 2010 Winter | |
| Erik Bjornsen | United States | Cross country skiing | 2014 Winter, 2018 Winter | |
| Hartmann Bjørnsen | Norway | Artistic gymnastics | 1912 Summer | |
| Kristian Bjørnsen | Handball | 2020 Summer, 2024 Summer | |
| Sadie Maubet Bjornsen | United States | Cross country skiing | 2014 Winter, 2018 Winter | |
| Susann Bjørnsen | Norway | Swimming | 2016 Summer | |
| Tore Bjørnsen | Weightlifting | 1972 Summer | |
| Bjørn Bjørnseth | Equestrian eventing, Equestrian dressage | 1920 Summer, 1936 Summer | |
| Kristinn Björnsson | Iceland | Alpine skiing | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter | |
| Espen Bjørnstad | Norway | Nordic combined | 2022 Winter | |
| Jørgen Bjørnstad | Artistic gymnastics | 1920 Summer | |
| Olav Bjørnstad | Rowing | 1912 Summer | |
| Svenn Erik Bjørnstad | Ice hockey | 1994 Winter | |
| Carl Björnstjerna | Sweden | Equestrian jumping | 1928 Summer | |
| Jacob Björnström | Finland | Sailing | 1912 Summer | |
| Thea Minyan Bjørseth | Norway | Ski jumping | 2022 Winter | |
| Sture Bjørvig | Rowing | 2000 Summer | |
| Ib Bjørke [ Wikidata ] | Denmark | Equestrian eventing | 1960 Summer | |
| Scott Bjugstad | United States | Ice hockey | 1984 Winter | |
| Erik Bjurberg | Sweden | Road cycling | 1924 Summer | |
| Rune Bjurström | Athletics | 1948 Summer | |
| Pirmin Blaak | Netherlands | Field hockey | 2020 Summer, 2024 Summer | |
| Uwe Blab | West Germany, Germany | Basketball | 1984 Summer, 1992 Summer | |
| Jakob Blåbjerg | Denmark | Football | 2016 Summer | |
| Arne Blach | Field hockey | 1928 Summer, 1936 Summer | |
| Ejvind Blach | 1920 Summer | |
| Niels Blach | 1920 Summer | |
| Preben Blach | 1948 Summer | |
| Wiesław Błach | Poland | Judo | 1988 Summer, 1992 Summer | |
| Al. Blachère | France | Croquet | 1900 Summer | |
| Black Eagle | Canada | Lacrosse | 1904 Summer | |
| Black Hawk | 1904 Summer | |
| Alfred Black [ Wikidata ] | Great Britain | Shooting | 1912 Summer | |
| Archibald Black | Canada | Rowing | 1924 Summer | |
| Byron Black | Zimbabwe | Tennis | 1996 Summer | |
| Cara Black | 2000 Summer, 2004 Summer, 2008 Summer | |
| Chris Black | Great Britain | Athletics | 1976 Summer, 1980 Summer | |
| Dave Black | 1976 Summer, 1980 Summer | |
| Denis Black | 1920 Summer | |
| Edmund Black | United States | 1928 Summer | |
| Ellie Black | Canada | Artistic gymnastics | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Ernesto Black | Argentina | Rowing | 1928 Summer | |
| Freya Black | Great Britain | Sailing | 2024 Summer | |
| Ian Black | Swimming | 1960 Summer | |
| John Black | Canada | Shooting | 1920 Summer, 1924 Summer | |
| Kim Black | United States | Swimming | 2000 Summer | |
| Larry Black | Athletics | 1972 Summer | |
| Leslie Black | Canada | Boxing | 1924 Summer | |
| Lisa Black | Great Britain | Rhythmic gymnastics | 1988 Summer | |
| Marilyn Black | Australia | Athletics | 1964 Summer | |
| Newbold Black | United States | Field hockey | 1956 Summer | |
| Roger Black | Great Britain | Athletics | 1992 Summer, 1996 Summer | |
| Sean Black | Jamaica | Boxing | 1996 Summer | |
| Sharon Black | Australia | Football | 2000 Summer | |
| Stuart Black | New Zealand | Athletics | 1932 Summer | |
| Wayne Black | Zimbabwe | Tennis | 1996 Summer, 2000 Summer, 2004 Summer | |
| Jasper Blackall | Great Britain | Sailing | 1956 Summer | |
| Cecil Blackbeard | South Africa | Tennis | 1920 Summer | |
| Blake Blackburn | Australia | Shooting | 2016 Summer | |
| Brian Blackburn | Artistic gymnastics | 1956 Summer | |
| Clifford Blackburn | Canada | Boxing | 1948 Summer | |
| Frédéric Blackburn | Short track speed skating | 1992 Winter, 1994 Winter | |
| Mackenzie Blackburn | Chinese Taipei | 2014 Winter | |
| Michael Blackburn | Australia | Sailing | 1996 Summer, 2000 Summer, 2004 Summer | |
| Peter Blackburn | Badminton | 1996 Summer, 2000 Summer | |
| Andrea Blackett | Barbados | Athletics | 2000 Summer, 2004 Summer | |
| Frederick Blackett | Great Britain | 1924 Summer | |
| Heath Blackgrove | New Zealand | Road cycling | 2004 Summer | |
| Dot Blackie | Great Britain | Rowing | 1992 Summer, 1996 Summer, 2000 Summer | |
| Carlon Blackman | Barbados | Athletics | 1984 Summer | |
| Carol Ann Blackman | Bermuda | Equestrian eventing | 1988 Summer | |
| Cheryl Blackman | Barbados | Athletics | 1984 Summer | |
| Craig Blackman | Canada | 1972 Summer | |
| Robyn Blackman | New Zealand | Field hockey | 1984 Summer | |
| Roland Blackmon | United States | Athletics | 1952 Summer | |
| Sylvanus Blackman | Great Britain | Weightlifting | 1960 Summer, 1964 Summer, 1968 Summer | |
| Penelope Blackmore | Australia | Rhythmic gymnastics | 2004 Summer | |
| Ron Blackney | Athletics | 1956 Summer | |
| Pierre Blacks | Belgium | Archery | 1976 Summer | |
| Harry Blackstaffe | Great Britain | Rowing | 1908 Summer | |
| Stina Blackstenius | Sweden | Football | 2016 Summer, 2020 Summer | |
| Andrea Blackwell | Canada | Basketball | 1984 Summer, 1996 Summer | |
| Carol Blackwood | Great Britain | Alpine skiing | 1972 Winter | |
| Michael Blackwood | Jamaica | Athletics | 2000 Summer, 2004 Summer, 2008 Summer | |
| Grażyna Błąd | Poland | Rowing | 1988 Summer | |
| Jaime Bladas | Spain | Shooting | 1964 Summer, 1968 Summer | |
| José Bladas | 1988 Summer, 1992 Summer | |
| Cees van Bladel | Netherlands | Sailing | 1988 Summer | |
| Maurice Bladel | Belgium | Art competitions | 1920 Summer | |
| Willy van Bladel | Netherlands | Sailing | 1984 Summer, 1988 Summer | |
| Kennedy Blades | United States | Wrestling | 2024 Summer | |
| Percibal Blades | Panama | Basketball | 1968 Summer | |
| Gösta Bladin | Sweden | Athletics | 1920 Summer | |
| Erik Bladström | Canoe sprint | 1936 Summer | |
| Anzhela Bladtceva | Independent Olympians | Trampolining | 2024 Summer | |
| Merel de Blaeij | Netherlands | Field hockey | 2012 Summer | |
| Roland Blaesi | Switzerland | Alpine skiing | 1956 Winter | |
| Christopher Blagden | Great Britain | 1992 Winter | |
| Mărgărit Blăgescu | Romania | Bobsleigh | 1956 Winter | |
| Alicia Blagg | Great Britain | Diving | 2012 Summer, 2016 Summer | |
| Paul Blagg | Athletics | 1988 Summer, 1992 Summer | |
| Vakhtang Blagidze | Soviet Union | Wrestling | 1980 Summer | |
| Blagoy Blagoev | Bulgaria | Weightlifting | 1976 Summer, 1980 Summer | |
| Maya Blagoeva | Artistic gymnastics | 1972 Summer | |
| Silvana Blagoeva | Biathlon | 1992 Winter | |
| Yordanka Blagoeva | Athletics | 1968 Summer, 1972 Summer, 1976 Summer, 1980 Summer | |
| Jelena Blagojević | Serbia | Volleyball | 2012 Summer, 2020 Summer | |
| Milan Blagojevic | Australia | Football | 1992 Summer | |
| Blaž Blagotinšek | Slovenia | Handball | 2016 Summer, 2024 Summer | |
| Vasili Blagov | Soviet Union | Figure skating | 1972 Winter | |
| Constantin Blaha | Austria | Diving | 2008 Summer, 2016 Summer | |
| František Bláha | Czechoslovakia | Shooting | 1920 Summer | |
| Gustav Blaha | Austria | Football | 1912 Summer | |
| Kálmán Blahó | Hungary | Canoe sprint | 1948 Summer | |
| Alana Blahoski | United States | Ice hockey | 1998 Winter | |
| Jana Blahová | Czech Republic | Canoe sprint | 2008 Summer | |
| Boris Blai | United States | Art competitions | 1932 Summer | |
| Philippe Blain | France | Volleyball | 1988 Summer | |
| Willy Blain | Boxing | 2000 Summer, 2004 Summer | |
| Adrian Blair | Australia | 1964 Summer | |
| Bonnie Blair | United States | Speed skating | 1984 Winter, 1988 Winter, 1992 Winter, 1994 Winter | |
| Clyde Blair | Athletics | 1904 Summer | |
| James Blair | Rowing | 1932 Summer | |
| Lee Blair | Art competitions | 1932 Summer | |
| Peter Blair | Wrestling | 1956 Summer | |
| Robert Blair | Great Britain | Badminton | 2004 Summer | |
| Marc-Antoine Blais Bélanger | Canada | Fencing | 2020 Summer | |
| Danaé Blais | Short track speed skating | 2022 Winter | |
| Julie Blaise | France | Swimming | 1992 Summer | |
| Ben Blaisse | Netherlands | Speed skating | 1936 Winter | |
| Robbert Blaisse | Rowing | 1920 Summer | |
| Steven Blaisse | 1960 Summer, 1964 Summer | |
| Marian Blaj | Romania | Biathlon | 2002 Winter, 2006 Winter | |
| Gavril Blajek | Water polo | 1960 Summer | |
| Ackeem Blake | Jamaica | Athletics | 2024 Summer | |
| Arthur Blake | United States | 1896 Summer | |
| Arthur Blake | 1988 Summer, 1992 Summer | |
| Christopher Blake | Australia | Archery | 1984 Summer, 1988 Summer | |
| Dennis Blake | Jamaica | Athletics | 1992 Summer, 1996 Summer | |
| Doris Blake | Great Britain | Artistic gymnastics | 1936 Summer | |
| Eric Blake | Boxing | 1968 Summer | |
| Ernest Blake | Water polo | 1936 Summer | |
| George Blake | Australasia | Athletics | 1908 Summer | |
| Helen Blake | Jamaica | 1976 Summer | |
| James Blake | United States | Tennis | 2008 Summer | |
| Jason Blake | Ice hockey | 2006 Winter | |
| Jerome Blake | Canada | Athletics | 2020 Summer, 2024 Summer | |
| J. P. Blake | Great Britain | Fencing | 1908 Summer, 1912 Summer, 1920 Summer | |
| Kevin Blake | New Zealand | Weightlifting | 1984 Summer, 1988 Summer | |
| Lorna Blake [ Wikidata ] | Puerto Rico | Swimming | 1968 Summer | |
| Paul Blake | South Africa | Field hockey | 2008 Summer | |
| Rob Blake | Canada | Ice hockey | 1998 Winter, 2002 Winter, 2006 Winter | |
| Tanya Blake | Malta | Athletics | 2004 Summer | |
| Trevor Blake | New Zealand | Field hockey | 1964 Summer | |
| Yohan Blake | Jamaica | Athletics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Cori Blakebrough | Canada | Basketball | 2000 Summer | |
| Peter Blakeley | Bobsleigh | 1972 Winter | |
| Margot Blakely | New Zealand | Alpine skiing | 1968 Winter | |
| Stuart Blakely | 1976 Winter, 1980 Winter | |
| Laura Blakeman | Great Britain | Canoe slalom | 2000 Summer | |
| Henry Blakeney | Athletics | 1912 Summer | |
| Ronald Blaker | Kenya | Sailing | 1960 Summer | |
| Sarah Blakeslee | United States | Shooting | 2004 Summer | |
| Henrik Blakskjær | Denmark | Sailing | 2000 Summer | |
| Alexis Blanc | France | Freestyle skiing | 1994 Winter | |
| Doris Blanc | Switzerland | Figure skating | 1948 Winter | |
| Elviro Blanc | Italy | Cross country skiing | 1968 Winter, 1972 Winter | |
| Henri Blanc | Switzerland | Weightlifting | 1936 Summer | |
| Isabelle Blanc | France | Snowboarding | 1998 Winter, 2002 Winter, 2006 Winter | |
| Leandro Blanc | Argentina | Boxing | 2016 Summer | |
| Robert Blanchaer | Belgium | Alpine skiing | 1972 Winter, 1976 Winter | |
| Blanchard [ Wikidata ] | France | Artistic gymnastics | 1900 Summer | |
| Chris Blanchard | Canada | Cross country skiing | 1998 Winter | |
| Claude Blanchard | France | Ice hockey | 1968 Winter | |
| Élie Blanchard | Canada | Lacrosse | 1904 Summer | |
| Erin Blanchard | United States | Trampolining | 2008 Summer | |
| Marcel Blanchard | France | Equestrian dressage | 1920 Summer | |
| Pierre Blanchard | Sailing | 1968 Summer | |
| René Blanchard | Ice hockey | 1968 Winter | |
| Vaughn Blanchard | United States | Athletics | 1912 Summer | |
| Geert Blanchart | Belgium | Short track speed skating | 1992 Winter, 1994 Winter | |
| Isabelle Blanchet-Rampling | Canada | Artistic swimming | 2008 Summer | |
| Elisa Blanchi | Italy | Rhythmic gymnastics | 2004 Summer, 2008 Summer, 2012 Summer | |
| Armand Blanchonnet | France | Road cycling | 1924 Summer | |
| François Blanchy | Tennis | 1912 Summer, 1920 Summer | |
| Frédéric Blanchy | Sailing | 1900 Summer | |
| Sarah Blanck | Australia | 2004 Summer, 2008 Summer | |
| Gareth Blanckenberg | South Africa | 2000 Summer, 2004 Summer | |
| Joaquín Blanco Albalat | Spain | 2016 Summer, 2024 Summer | |
| Joaquín Blanco Roca | 1984 Summer | |
| Alberto Blanco | Cuba | Weightlifting | 1976 Summer, 1980 Summer | |
| Aleoscar Blanco | Venezuela | Volleyball | 2008 Summer | |
| Alfonso Blanco | Boxing | 2008 Summer | |
| Cecilia Blanco | Spain | Judo | 2004 Summer, 2012 Summer | |
| Cuauhtémoc Blanco | Mexico | Football | 1996 Summer | |
| Estebán Blanco | Costa Rica | Swimming | 2000 Summer | |
| Fernando Blanco | Mexico | Football | 1972 Summer | |
| Germán González Blanco [ Wikidata ] | Colombia | 1968 Summer | |
| Gimena Blanco | Argentina | 2008 Summer | |
| Giovanna Blanco | Venezuela | Judo | 2004 Summer, 2012 Summer | |
| Jesús Blanco | Argentina | Wrestling | 1972 Summer | |
| José Luis Blanco | Spain | Athletics | 2008 Summer | |
| Juan Blanco | Cuba | Field hockey | 1980 Summer | |
| Juan Carlos Blanco | Venezuela | Volleyball | 2008 Summer | |
| Laura Blanco | Spain | Cycling mountain bike | 1996 Summer | |
| Lorena Blanco | Peru | Badminton | 2004 Summer | |
| Luisa Blanco | Colombia | Artistic gymnastics | 2024 Summer | |
| Maribel Blanco | Spain | Triathlon | 2000 Summer | |
| Oiana Blanco | Judo | 2012 Summer | |
| Ramón Blanco | Alpine skiing | 1948 Winter | |
| Roberto Blanco | Argentina | Football | 1960 Summer | |
| Rolando Blanco | Guatemala | Athletics | 2000 Summer | |
| Sonia Blanco | Spain | Basketball | 2004 Summer | |
| Suzette Blanco | Cuba | Artistic gymnastics | 1968 Summer | |
| Beverley Bland | Canada | Basketball | 1976 Summer | |
| Christopher Bland | Ireland | Fencing | 1960 Summer | |
| Donald Bland | Great Britain | Swimming | 1948 Summer | |
| Harriet Bland | United States | Athletics | 1936 Summer | |
| John Bland | Great Britain | Rowing | 1984 Summer | |
| Roberto Blanda | Italy | 1992 Summer, 1996 Summer | |
| Gabriel Blando | Colombia | Fencing | 1956 Summer | |
| Helen Blane | Great Britain | Alpine skiing | 1936 Winter | |
| Fred Blaney | Canada | Judo | 1984 Summer | |
| Peter Blangé | Netherlands | Volleyball | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Columba Blango | Sierra Leone | Athletics | 1980 Summer | |
| Leszek Blanik | Poland | Artistic gymnastics | 2000 Summer, 2008 Summer | |
| François Blank | Switzerland | Ice hockey | 1952 Winter | |
| Harriet Blank | Germany | Swimming | 1964 Summer | |
| Johann Blank | Water polo | 1928 Summer | |
| Peter Blank | Athletics | 1996 Summer | |
| Theo Blankenaauw | Netherlands | Track cycling | 1948 Summer | |
| Jay Blankenau | Canada | Volleyball | 2016 Summer, 2020 Summer | |
| Wolfgang Blankenau | Handball | 1976 Summer | |
| Rita Blankenburg | Germany | Speed skating | 1964 Winter | |
| Tom Blankenburg | United States | Swimming | 1928 Summer | |
| Ben Blankenship | Athletics | 2016 Summer | |
| Jan Blankers | Netherlands | 1928 Summer | |
| Fanny Blankers-Koen | 1936 Summer, 1948 Summer, 1952 Summer | |
| Graham Blanks | United States | 2024 Summer | |
| Rafael Blanquer | Spain | 1976 Summer | |
| Oscar Blansaer | Belgium | 1920 Summer | |
| Bryan Blanshard | Canada | Badminton | 1992 Summer | |
| Dain Blanton | United States | Beach volleyball | 2000 Summer, 2004 Summer | |
| Massimiliano Blardone | Italy | Alpine skiing | 2002 Winter, 2006 Winter, 2010 Winter | |
| Romain Blary | France | Water polo | 2016 Summer | |
| Andrea Blas | Spain | 2012 Summer | |
| Moysés Blás | Brazil | Basketball | 1960 Summer | |
| Ricardo Blas | Guam | Judo | 1988 Summer | |
| Ricardo Blas Jr. | 2008 Summer, 2012 Summer | |
| Claudia Blasberg | Germany | Rowing | 2000 Summer, 2004 Summer | |
| Detlef Blasche | East Germany | Weightlifting | 1980 Summer | |
| Robert Blaschka [ Wikidata ] | Austria | Fencing | 1984 Summer, 1992 Summer | |
| Carl Blasco | France | Triathlon | 2000 Summer, 2004 Summer | |
| Gregorio Blasco | Mexico | Rowing | 1968 Summer | |
| Miriam Blasco | Spain | Judo | 1992 Summer | |
| Alfred Blaser | Switzerland | Equestrian eventing | 1948 Summer | |
| Andrew Blaser | United States | Skeleton | 2022 Winter | |
| Robert Blaser | Switzerland | Wrestling | 1972 Summer | |
| Ettore Blasi | Italy | Athletics | 1920 Summer, 1924 Summer | |
| Osvaldo Blasi | Argentina | Wrestling | 1952 Summer | |
| Umberto Blasi | Italy | Athletics | 1908 Summer | |
| Kazimierz Błasiński | Poland | Rowing | 1956 Summer | |
| Erwin Blask | Germany | Athletics | 1936 Summer | |
| Erwin Blasl | Austria | Water polo | 1936 Summer | |
| Jenna Blasman | Canada | Snowboarding | 2014 Winter | |
| Rudolf Blass | West Germany | Canoe sprint | 1972 Summer, 1976 Summer | |
| Genowefa Błaszak | Poland | Athletics | 1988 Summer | |
| Józef Błaszczyk | Sailing | 1972 Summer | |
| Lucjan Błaszczyk | Table tennis | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Henryk Blaszka | Sailing | 1988 Summer | |
| Jessica Blaszka | Netherlands | Wrestling | 2016 Summer | |
| Ryszard Blaszka | Poland | Sailing | 1976 Summer | |
| Miroslav Blaťák | Czech Republic | Ice hockey | 2010 Winter | |
| Michael Blatchford | United States | Track cycling | 2008 Summer | |
| Neil Blatchford | Speed skating | 1968 Winter, 1972 Winter | |
| Sam Blatherwick [ Wikidata ] | Great Britain | Swimming | 1908 Summer | |
| Wilfred Blatherwick | United States | Tennis | 1904 Summer | |
| Jeff Blatnick | Wrestling | 1984 Summer | |
| Evelyne Blaton | Belgium | Equestrian jumping | 1992 Summer | |
| Michel Blaton | 1996 Summer | |
| Waldemar Blatskauskas | Brazil | Basketball | 1960 Summer | |
| Robert Blatt | United States | Alpine skiing | 1948 Winter | |
| André Blatter | Austria | Cross country skiing | 1988 Winter | |
| Barbara Blatter | Switzerland | Cycling mountain bike | 2000 Summer, 2004 Summer | |
| Albert Blattmann | Road cycling | 1924 Summer | |
| Walter Blattmann | United States | Artistic gymnastics | 1952 Summer | |
| Haralds Blaus | Russia | Shooting | 1912 Summer | |
| Verner Blaudzun | Denmark | Road cycling | 1968 Summer, 1976 Summer, 1980 Summer | |
| Damián Blaum | Argentina | Marathon swimming | 2008 Summer | |
| Tadeusz Blauth | Poland | Basketball | 1964 Summer | |
| Lea Zahoui Blavo | Ivory Coast | Judo | 2000 Summer | |
| Andrzej Bławdzin | Poland | Road cycling | 1964 Summer, 1968 Summer | |
| Eddie Blay | Ghana | Boxing | 1960 Summer, 1964 Summer | |
| Norge Blay | Cuba | Water polo | 1992 Summer | |
| Anastasia Blayvas | Germany | Wrestling | 2024 Summer | |
| Anita Blaze | France | Fencing | 2012 Summer, 2020 Summer, 2024 Summer | |
| Hermann Blazejezak | Germany | Athletics | 1936 Summer | |
| Jan Blažek | Czechoslovakia | Basketball | 1972 Summer | |
| Jindřich Blažek | Rowing | 1960 Summer | |
| Miloslav Blažek | Ice hockey | 1952 Winter | |
| Pavol Blažek | Czechoslovakia, Slovakia | Athletics | 1980 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Petr Blažek | Czechoslovakia | Modern pentathlon | 1992 Summer | |
| Zuzana Blažeková | Slovakia | Athletics | 2000 Summer | |
| Jeļena Blaževiča | Latvia | 1996 Summer | |
| Mia Blaževska Eminova | North Macedonia | Swimming | 2020 Summer | |
| Marko Blaževski | 2012 Summer, 2016 Summer | |
| Jaka Blažič | Slovenia | Basketball | 2020 Summer | |
| Veronika Blažíčková [ Wikidata ] | Czech Republic | Shooting | 2024 Summer | |
| Radomír Blažík | Czechoslovakia | Canoe sprint | 1980 Summer | |
| Milada Blažková | Field hockey | 1980 Summer | |
| Marcel Blažo | Swimming | 1992 Summer | |
| Fátima Blázquez | Spain | Road cycling | 1996 Summer, 2000 Summer | |
| Ryszard Błażyca | Poland | Wrestling | 1928 Summer | |
| Leszek Błażyński | Boxing | 1972 Summer, 1976 Summer | |
| Clementine Blé | Ivory Coast | Handball | 1988 Summer | |
| Wilfred Bleaden | Great Britain | Athletics | 1908 Summer | |
| Julia Bleasdale | 2012 Summer | |
| Omar Blebel | Argentina | Wrestling | 1948 Summer, 1952 Summer | |
| Jon Bleby | Great Britain | Field hockey | 2008 Summer | |
| Torben Blech | Germany | Athletics | 2020 Summer, 2024 Summer | |
| Petr Blecha | Czechoslovakia | Rowing | 1992 Summer | |
| Bernadetta Blechacz | Poland | Athletics | 1980 Summer | |
| Eden Blecher | Israel | Artistic swimming | 2020 Summer | |
| Peter Blecher | West Germany | Shooting | 1972 Summer, 1984 Summer | |
| Reinhard Blechert | Swimming | 1968 Summer | |
| Wilhelm Blechschmidt | Czechoslovakia | Bobsleigh | 1936 Winter | |
| Carlos Eduardo Bleck | Portugal | Sailing | 1928 Summer | |
| Julia Bleck | Germany | 2008 Summer | |
| Frank Bleckmann | Fencing | 1996 Summer | |
| Jan de Blécourt | Netherlands | Shooting | 1908 Summer | |
| Oliver Bleddyn | Australia | Track cycling | 2024 Summer | |
| Keston Bledman | Trinidad and Tobago | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Jolanta Błędowska | Poland | Field hockey | 1980 Summer | |
| Carina Bleeker | Netherlands | 1992 Summer | |
| Horst Bleeker | Germany | Swimming | 1956 Summer | |
| Kasper Bleibach | Denmark | Canoe sprint | 2008 Summer, 2012 Summer | |
| Ethelda Bleibtrey | United States | Swimming | 1920 Summer | |
| Jeremy Bleich | Israel | Baseball | 2020 Summer | |
| Hartwig Bleidick | West Germany | Football | 1972 Summer | |
| Gretchen Bleiler | United States | Snowboarding | 2006 Winter, 2010 Winter | |
| Werner Bleiner | Austria | Alpine skiing | 1968 Winter, 1972 Winter | |
| Fritz Bleiweiß | Germany | Athletics | 1936 Summer | |
| Sabine Blemenschütz | Austria | Field hockey | 1980 Summer | |
| Elizabeth Blencowe | Australia | Canoe sprint | 1984 Summer | |
| Mark Blenkarne | Great Britain | Archery | 1980 Summer | |
| Blair Blenman | Weightlifting | 1960 Summer | |
| Donald Blessing | United States | Rowing | 1928 Summer | |
| Marcelo Blessman | Brazil | Equestrian jumping | 1984 Summer | |
| Rosmarie Bleuer | Switzerland | Alpine skiing | 1948 Winter | |
| Christopher Blevins | United States | Cycling mountain bike | 2020 Summer, 2024 Summer | |
| Joe Blewitt | Great Britain | Athletics | 1920 Summer, 1928 Summer | |
| John Blewitt | Speed skating | 1968 Winter, 1972 Winter | |
| Raymond Bley | Luxembourg | Road cycling | 1960 Summer | |
| Pedro Bleyer | Bolivia | Fencing | 1988 Summer | |
| Hennadiy Bleznitsov | Soviet Union | Athletics | 1964 Summer, 1968 Summer | |
| Aikaterini Bliamou | Greece | Swimming | 2000 Summer | |
| Andris Blicavs | Australia | Basketball | 1976 Summer | |
| Sara Blicavs | 2020 Summer | |
| Steen Blicher | Denmark | Football | 1952 Summer | |
| Steen Steensen Blicher | 1920 Summer | |
| Mia Blichfeldt | Badminton | 2020 Summer, 2024 Summer | |
| Dick Blick | United States | Swimming | 1960 Summer | |
| Raymond Blick | Great Britain | Canoe sprint | 1956 Summer, 1960 Summer | |
| Arthur Blickenstorfer | Switzerland | Equestrian jumping | 1968 Summer | |
| Patricia du Roy de Blicquy | Belgium | Alpine skiing | 1964 Winter | |
| Hichem Blida | Algeria | Boxing | 2000 Summer | |
| Hans-Jörg Bliesener | East Germany | Canoe sprint | 1988 Summer | |
| Kyle Blignaut | South Africa | Athletics | 2020 Summer, 2024 Summer | |
| Iwan Blijd | Suriname | Judo | 1972 Summer | |
| Willem Hubert van Blijenburgh | Netherlands | Fencing | 1908 Summer, 1912 Summer, 1920 Summer, 1924 Summer | |
| Adrian Blincoe | New Zealand | Athletics | 2008 Summer | |
| Severin Blindenbacher | Switzerland | Ice hockey | 2006 Winter, 2010 Winter, 2014 Winter | |
| Rogier Blink | Netherlands | Rowing | 2008 Summer, 2012 Summer | |
| Susan Blinks | United States | Equestrian dressage | 2000 Summer | |
| Aleksandr Blinov | Soviet Union | Equestrian eventing | 1980 Summer | |
| Aleksandr Blinov | Russia | Shooting | 2004 Summer | |
| Viktor Blinov | Soviet Union | Ice hockey | 1968 Winter | |
| Yury Blinov | 1972 Winter | |
| Alan Blinston | Great Britain | Athletics | 1968 Summer | |
| Brian Bliss | United States | Football | 1988 Summer | |
| Gérard Blitz | Belgium | Swimming, Water polo | 1920 Summer, 1924 Summer, 1928 Summer, 1936 Summer | |
| Maurice Blitz | Water polo | 1920 Summer, 1924 Summer | |
| Carlos Blixen | Uruguay | Basketball | 1956 Summer, 1960 Summer | |
| Hans von Blixen-Finecke | Sweden | Equestrian dressage | 1912 Summer | |
| Hans von Blixen-Finecke Jr. | Equestrian eventing | 1952 Summer, 1956 Summer | |
| Yuliya Bliznets | Belarus | Athletics | 2020 Summer | |
| Oleksandr Blizniuchenko | Ukraine | Shooting | 1996 Summer | |
| Irina Bliznova | Russia | Handball | 2008 Summer, 2012 Summer, 2016 Summer | |
| Anastasia Bliznyuk | Russia, Russian Olympic Committee | Rhythmic gymnastics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Vincenzo Blo [ Wikidata ] | Italy | Artistic gymnastics | 1908 Summer | |
| Alfred Bloch | France | Football | 1900 Summer | |
| Axel Bloch | Denmark | Fencing | 1932 Summer | |
| Garen Bloch | South Africa | Track cycling | 2000 Summer | |
| Julius Bloch | United States | Art competitions | 1932 Summer | |
| Peter Bloch | Norway | Athletics | 1948 Summer | |
| Rupert Blöch | Austria | 1952 Summer | |
| Sean Bloch | South Africa | Track cycling | 1992 Summer | |
| Shani Bloch | Israel | Road cycling | 2016 Summer | |
| Stefan Blöcher | West Germany | Field hockey | 1984 Summer, 1988 Summer | |
| Gerhard Blöchl | Germany | Freestyle skiing | 2006 Winter | |
| Steffen Blochwitz | East Germany | Track cycling | 1988 Summer | |
| James Block | Great Britain | Canoe sprint | 1992 Summer | |
| Jason Block | Canada | Swimming | 2016 Summer | |
| Sherry Block | United States | Archery | 1992 Summer | |
| Herbert Blöcker | West Germany, Germany | Equestrian eventing | 1976 Summer, 1992 Summer, 1996 Summer | |
| John Blockey | Great Britain | Bobsleigh | 1968 Winter | |
| Adrian Błocki | Poland | Athletics | 2016 Summer | |
| Vanessa Blockmans | Belgium | Field hockey | 2024 Summer | |
| Josué Blocus | France | Boxing | 1996 Summer | |
| Arend Bloem | Netherlands | Canoe sprint | 1976 Summer | |
| Johannes Bloemen | Swimming | 1900 Summer | |
| Ted-Jan Bloemen | Canada | Speed skating | 2018 Winter, 2022 Winter | |
| Linn Blohm | Sweden | Handball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Tom Blohm | Norway | Football | 1952 Summer | |
| Justen Blok | Netherlands | Field hockey | 2020 Summer, 2024 Summer | |
| Evgeni Blokhin | Kazakhstan | Ice hockey | 2006 Winter | |
| Oleg Blokhin | Soviet Union | Football | 1972 Summer, 1976 Summer | |
| Jan Blokhuijsen | Netherlands | Speed skating | 2010 Winter, 2014 Winter, 2018 Winter | |
| Merel Blom | Equestrian eventing | 2016 Summer, 2020 Summer | |
| Otto Blom | Tennis | 1912 Summer | |
| Per Blom | Norway | Canoe sprint | 1972 Summer | |
| Reinier Blom | Netherlands | Artistic gymnastics | 1908 Summer | |
| Rens Blom | Athletics | 2000 Summer, 2004 Summer | |
| Tore Blom | Sweden | 1900 Summer | |
| Emil Blomberg | 2020 Summer | |
| Mattias Blomberg | Snowboarding | 2006 Winter | |
| Stig Blomberg | Art competitions | 1932 Summer, 1936 Summer | |
| Vanja Blomberg | Artistic gymnastics | 1952 Summer | |
| Gert Blomé | Ice hockey | 1960 Winter, 1964 Winter | |
| Kevin van Blomestein | Zimbabwe | Field hockey | 1964 Summer | |
| Olavi Blomfjord | Sweden | Weightlifting | 1984 Summer | |
| Eric Blomgren | Speed skating | 1924 Winter | |
| Gustaf Blomgren | Diving | 1912 Summer, 1920 Summer | |
| Ruben Blommaert | Germany | Figure skating | 2018 Winter | |
| Jan Blomme | Belgium | Track cycling | 1980 Summer | |
| Maurice Blomme | 1948 Summer | |
| Cor Blommers | Netherlands | Boxing | 1928 Summer | |
| Axel Blomqvist | Sweden | Speed skating | 1924 Winter | |
| Erik Blomqvist | Shooting | 1912 Summer, 1920 Summer | |
| Erik Blomqvist | Athletics | 1920 Summer, 1924 Summer | |
| Göte Blomqvist | Ice hockey | 1952 Winter | |
| Janne Blomqvist | Finland | Swimming | 1992 Summer, 1996 Summer | |
| John-Erik Blomqvist | Sweden | Athletics | 1968 Summer | |
| Nathalie Blomqvist | Finland | 2024 Summer | |
| Ossi Blomqvist | Speed skating | 1928 Winter, 1932 Winter, 1936 Winter | |
| Rebecka Blomqvist | Sweden | Football | 2020 Summer | |
| Rune Blomqvist | Canoe sprint | 1952 Summer | |
| Timo Blomqvist | Finland | Ice hockey | 1988 Winter, 1992 Winter | |
| Torbjörn Blomqvist | Canoe sprint | 1960 Summer | |
| Mats Bolmstedt | Sweden | Speed skating | 1948 Winter, 1952 Winter | |
| Thea Blomsterberg [ Wikidata ] | Denmark | Swimming | 2024 Summer | |
| Hanna Blomstrand | Sweden | Handball | 2016 Summer | |
| Elsy Blom-Wirz | Switzerland | Art competitions | 1948 Summer | |
| Pierre le Blon | Belgium | Fencing | 1908 Summer | |
| Marguerite Anne de Blonay | Switzerland | Art competitions | 1924 Summer | |
| Xavier Blond | France | Biathlon | 1988 Winter, 1992 Winter | |
| Bernard Blondeau | Shooting | 1976 Summer | |
| Gaël Blondeau [ Wikidata ] | Nordic combined | 2022 Winter | |
| Renée Blondeau | Swimming | 1936 Summer | |
| Thérèse Blondeau | 1936 Summer | |
| Yves Blondeau | Cross country skiing, Biathlon | 1976 Winter, 1980 Winter | |
| Alain Blondel | Athletics | 1988 Summer, 1992 Summer | |
| Héctor Blondet | Puerto Rico | Basketball | 1972 Summer, 1976 Summer | |
| Pierre Blondiaux | France | Rowing | 1952 Summer | |
| Ivanie Blondin | Canada | Speed skating | 2014 Winter, 2018 Winter, 2022 Winter | |
| Lyudmyla Blonska | Ukraine | Athletics | 2008 Summer | |
| Alexander Blonz | Norway | Handball | 2024 Summer | |
| Edward Blood | United States | Nordic combined | 1932 Winter, 1936 Winter | |
| Maurice Blood | Great Britain | Shooting | 1908 Summer | |
| Andy Bloom | United States | Athletics | 2000 Summer | |
| Gilad Bloom | Israel | Tennis | 1988 Summer, 1992 Summer | |
| Jeremy Bloom | United States | Freestyle skiing | 2002 Winter, 2006 Winter | |
| Tamir Bloom | Fencing | 1996 Summer, 2000 Summer | |
| Issy Bloomberg | South Africa | Weightlifting | 1948 Summer, 1952 Summer | |
| Harold Bloomer | United States | Fencing | 1924 Summer | |
| Millard Bloomer | 1920 Summer | |
| Arthur Bloomfeld | Germany | Sailing | 1900 Summer | |
| Doodie Bloomfield | Canada | Basketball | 1948 Summer | |
| Geoff Bloomfield | Australia | Equestrian jumping | 2000 Summer | |
| Sally Bloomfield | Great Britain | Rowing | 1984 Summer | |
| Martina Blos | East Germany | Athletics | 1976 Summer | |
| Max Bloesch | Switzerland | Handball | 1936 Summer | |
| Artem Bloshenko | Ukraine | Judo | 2012 Summer, 2016 Summer | |
| Laurie Blouin | Canada | Snowboarding | 2018 Winter, 2022 Winter | |
| Marc Blouin | Road cycling | 1976 Summer | |
| Mélanie Blouin | Athletics | 2012 Summer | |
| Oswald Blouin | Sailing | 1968 Summer | |
| Ernest Blount [ Wikidata ] | Great Britain | Wrestling | 1908 Summer | |
| Maria Blower | Road cycling | 1984 Summer, 1988 Summer | |
| Douglas Blubaugh | United States | Wrestling | 1960 Summer | |
| Acee Blue Eagle | Art competitions | 1932 Summer | |
| Tony Blue | Australia | Athletics | 1960 Summer, 1964 Summer | |
| Joshua Bluhm | Germany | Bobsleigh | 2014 Winter | |
| Kay Bluhm | East Germany, Germany | Canoe sprint | 1988 Summer, 1992 Summer, 1996 Summer | |
| Roberts Bluķis | Latvia | Ice hockey | 1936 Winter | |
| Béla Blum | Hungary | Rowing | 1928 Summer | |
| Birgit Blum | Liechtenstein | Judo | 1992 Summer, 1996 Summer | |
| Constanze Blum | Germany | Cross country skiing | 1998 Winter | |
| Eric Blum | Switzerland | Ice hockey | 2018 Winter | |
| Jonathon Blum | United States | 2018 Winter | |
| Jürgen Blum | Germany | Equestrian eventing | 1996 Summer | |
| Ray Blum | United States | Speed skating | 1948 Winter | |
| Robert Blum | Fencing | 1964 Summer, 1968 Summer | |
| Zoltán Blum | Hungary | Football | 1912 Summer | |
| Dzintra Blūma | Latvia | Canoe slalom | 1992 Summer, 1996 Summer | |
| Daniel Bluman | Colombia, Israel | Equestrian jumping | 2012 Summer, 2016 Summer, 2024 Summer | |
| Elke Blumauer | West Germany | Handball | 1984 Summer | |
| Judy Blumberg | United States | Figure skating | 1980 Winter, 1984 Winter | |
| Holger Blume | Germany | Athletics | 1996 Summer | |
| Joaquín Blume | Spain | Artistic gymnastics | 1952 Summer | |
| Marc Blume | Germany | Athletics | 1996 Summer, 2000 Summer | |
| Pernille Blume | Denmark | Swimming | 2012 Summer, 2016 Summer, 2020 Summer | |
| Harri Blumén | Finland | Ski jumping | 1976 Winter | |
| Bettina Blumenberg | West Germany | Field hockey | 1988 Summer | |
| Rita Blumenberg | Germany | Figure skating | 1960 Winter | |
| Othmar Müller von Blumencron | Switzerland | Sailing | 1992 Summer | |
| Hans Blumer | Swimming | 1948 Summer | |
| Stacey Blumer | United States | Freestyle skiing | 1998 Winter | |
| Minna Blüml | Germany | Luge | 1964 Winter | |
| Kristian Blummenfelt | Norway | Triathlon | 2016 Summer, 2020 Summer, 2024 Summer | |
| Mārtiņš Blūms | Latvia | Cycling mountain bike | 2024 Summer | |
| Aaron Blunck | United States | Freestyle skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Christian Blunck | Germany | Field hockey | 1992 Summer, 1996 Summer | |
| Dennis Blundell | Great Britain | Speed skating | 1948 Winter | |
| Jenny Blundell | Australia | Athletics | 2016 Summer, 2020 Summer | |
| Savilia Blunk | United States | Cycling mountain bike | 2024 Summer | |
| André Blusset | France | Cross country skiing | 1924 Winter | |
| Serge Blusson | Track cycling | 1948 Summer | |
| Gayle Bluth | Mexico | Basketball | 1960 Summer | |
| Brian Blutreich | United States | Athletics | 1992 Summer | |
| Lynda Blutreich | 2000 Summer | |
| Max Bly | Bobsleigh | 1936 Winter | |
| Michaela Blyde | New Zealand | Rugby sevens | 2020 Summer, 2024 Summer | |
| Franklin Blyden | Virgin Islands | Athletics | 1968 Summer | |
| Oleksandr Blyshchyk | Ukraine | Weightlifting | 1996 Summer | |
| Wilhelm Blystad | Norway | Athletics | 1908 Summer | |
| Ian Blyth | Great Britain | Swimming | 1960 Summer | |
| Madonna Blyth | Australia | Field hockey | 2008 Summer, 2012 Summer, 2016 Summer | |
| Ross Blyth | Great Britain | Alpine skiing | 1980 Winter | |
| Gabrielle Blythe | Australia | Athletics | 1992 Summer | |
| Zoya Blyuvas | Soviet Union | Diving | 1956 Summer | |