Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Antonio Abadía | ATH | Olympics | 2016 | 0–0–1 2016 Amsterdam bronze: 10000 m | |
| José Manuel Abascal | ATH | Olympics / Olympic Flagbearer | 1980—1992 | 0–0–1 1982 Athina bronze: 1500 m | |
| Nunu Abashidze | ATH | Olympics | 1980 | 0–0–1 1982 Athina bronze: shot put | |
| Bashir Abdi | ATH | Olympics | 2016—2024 | 0–1–0 2018 Berlin silver: 10000 m | |
| Arthur Abele | ATH | Olympics | 2008—2016 | 1–0–0 2018 Berlin gold: decathlon | |
| Pasqualino Abeti | ATH | Olympics / Non-starter | 1972—1976 | 0–0–1 1971 Helsinki bronze: 4×100 m relay | |
| Elvan Abeylegesse | ATH | Olympics | 2004—2008 | 2–0–1 2006 Göteborg bronze: 5000 m; 2010 Barcelona gold: 5000 m and 10000 m | |
| Inga Abitova | ATH | Olympics | 2008 | 1–0–0 2006 Göteborg gold: 10000 m | |
| Tadesse Abraham | ATH | Olympics | 2016—2024 | 2–1–0 2016 Amsterdam gold: half-marathon and half-marathon team; 2018 Berlin silver: marathon | |
| Marcus Adam | ATH/BOB | Olympics | 1992—2002 | 0–1–0 1990 Split silver: 4×100 m relay | |
| Marianne Adam | ATH | Olympics | 1972—1976 | 0–1–0 1974 Roma silver: shot put | |
| Zoltán Adamik | ATH | Olympics | 1952 | 0–0–1 1954 Bern bronze: 400 m | |
| Lyukman Adams | ATH | Olympics | 2012 | 0–1–0 2014 Zürich silver: triple jump | |
| Margaret Adeoye | ATH | Olympics | 2012 | 0–0–1 2014 Zürich bronze: 4×400 m relay | |
| Yelena Afanasyeva | ATH | Olympics | 1996 | 1–0–0 1998 Budapest gold: 800 m | |
| Gennady Agapov | ATH | Olympics | 1964—1968 | 0–1–0 1966 Budapest silver: 50 km walk | |
| Arne Åhman | ATH | Olympics | 1948—1952 | 0–1–1 1946 Oslo bronze: triple jump; 1950 Bruxelles silver: high jump | |
| Harry Aikines-Aryeetey | ATH | Olympics / Non-starter | 2008—2016 | 2–0–1 2014 Zürich gold: 4×100 m relay, bronze: 100 m; 2018 Berlin gold: 4×100 m relay | |
| Kriss Akabusi | ATH | Olympics | 1984—1992 | 3–0–0 1986 Stuttgart gold: 4×400 m relay; 1990 Split gold: 400 m hurdles and 4×400 m relay | |
| Stella Akakpo | ATH | Olympics | 2016 | 0–1–0 2014 Zürich silver: 4×100 m relay | |
| Tarık Akdağ | ATH | Olympics | 2012—2016 | 0–1–0 2012 Helsinki silver: 3000 m steeplechase | |
| Rustam Akhmetov | ATH | Olympics | 1972 | 0–0–1 1971 Helsinki bronze: high jump | |
| Nataliya Akhrimenko | ATH | Olympics | 1980—1988 | 0–0–1 1986 Stuttgart bronze: shot put | |
| Aleksandr Aksinin | ATH | Olympics | 1976—1980 | 1–0–1 1978 Praha bronze: 4×100 m relay; 1982 Athina gold: 4×100 m relay | |
| Päivi Alafrantti | ATH | Olympics | 1988—1992 | 1–0–0 1990 Split gold: javelin throw | |
| Emmy Albus | ATH | Olympics | 1936 | 1–0–0 1938 Wien gold: 4×100 m relay | |
| Jim Alder | ATH | Olympics | 1968 | 0–0–1 1969 Athina bronze: marathon | |
| Virgilijus Alekna | ATH | Olympics / Opening Flagbearer | 1996—2012 | 1–1–1 1998 Budapest bronze: discus throw; 2002 München silver: discus throw; 2006 Göteborg gold: discus throw | |
| David Alerte | ATH | Olympics / Non-starter | 2004—2008 | 0–0–1 2006 Göteborg bronze: 4×100 m relay | |
| Erica Alfridi | ATH | Olympics | 2000 | 0–1–1 1998 Budapest silver: 10 km walk; 2002 München bronze: 20 km walk | |
| Folke Alnevik | ATH | Olympics | 1948 | 0–0–1 1946 Oslo bronze: 4×400 m relay | |
| Glory Alozie | ATH | Olympics | 2000—2004 | 1–0–0 2002 München gold: 100 m hurdles (competed for Spain) | |
| Phara Anacharsis | ATH | Olympics | 2008—2016 | 1–2–0 2012 Helsinki silver: 4×400 m relay; 2014 Zürich gold: 4×400 m relay (ran in heats only); 2016 Amsterdam silver: 4×400 m relay | |
| Grete Andersen-Waitz | ATH | Olympics / Olympic Flagbearer / Opening Flagbearer | 1972—1994 | 0–0–2 1974 Roma bronze: 1500 m (competed as Grete Andersen); 1978 Praha bronze: 3000 m (competed as Grete Waitz) | |
| Georg Andersen | ATH | Olympics | 1988 | 0–0–1 1990 Split bronze: shot put | |
| Harald Andersson | ATH | Olympics | 1936 | 1–0–0 1934 Torino gold: discus throw | |
| Isabellah Andersson | ATH | Olympics | 2012 | 0–0–1 2010 Barcelona bronze: marathon | |
| Antonio Andrés | ATH | Olympics | 2000 | 0–0–1 1998 Budapest bronze: 4×400 m relay | |
| Vladimir Andreyev | ATH | Olympics | 1992—2004 | 0–1–0 2002 München silver: 20 km walk (competed for Russia) | |
| Yury Andronov | ATH | Olympics | 2004 | 0–0–1 2006 Göteborg bronze: 50 km walk | |
| Tonje Angelsen | ATH | Olympics | 2012—2016 | 0–1–0 2012 Helsinki silver: high jump | |
| Emma Ania | ATH | Olympics | 2008 | 0–1–0 2006 Göteborg silver: 4×100 m relay | |
| Tatyana Anisimova | ATH | Olympics | 1976—1980 | 0–1–0 1978 Praha silver: 100 m hurdles | |
| Vera Anisimova | ATH | Olympics | 1976—1980 | 1–0–0 1978 Praha gold: 4×100 m relay | |
| Adrián Annus | ATH | Olympics | 1996—2004 | 1–0–0 2002 München gold: hammer throw | |
| Meta Antenen | ATH | Olympics / Closing Flagbearer | 1968—1972 | 0–2–0 1969 Athina silver: pentathlon; 1971 Helsinki silver: long jump | |
| Salvatore Antibo | ATH | Olympics | 1984—1992 | 2–0–1 1986 Stuttgart bronze: 10000 m; 1990 Split gold: 5000 m and 10000 m | |
| Aleksandras Antipovas | ATH | Olympics | 1980 | 0–0–1 1978 Praha bronze: 10000 m | |
| Abel Antón | ATH | Olympics | 1988—2000 | 1–0–1 1994 Helsinki gold: 10000 m, bronze: 5000 m | |
| Nataliya Antyukh | ATH | Olympics | 2004—2012 | 1–1–0 2002 München silver: 4×400 m relay; 2010 Barcelona gold: 400 m hurdles | |
| Joseph Arame | ATH | Olympics | 1976—1980 | 1–0–0 1974 Roma gold: 4×100 m relay | |
| Jack Archer | ATH | Olympics | 1948 | 1–0–0 1946 Oslo gold: 100 m | |
| Daphne Arden | ATH | Olympics | 1964 | 0–0–1 1962 Beograd bronze: 4×100 m relay | |
| Abeba Aregawi | ATH | Olympics | 2012 | 0–1–0 2014 Zürich silver: 1500 m (competed for Sweden) | |
| Franco Arese | ATH | Olympics | 1968—1972 | 1–0–0 1971 Helsinki gold: 1500 m | |
| Kell Areskoug | ATH | Olympics | 1932—1936 | 0–0–1 1938 Paris bronze: 400 m hurdles | |
| Polat Arıkan | ATH | Olympics | 2012—2020 | 2–0–1 2012 Helsinki gold: 10000 m, bronze: 5000 m; 2016 Amsterdam gold: 10000 m | |
| Vasily Arkhipenko | ATH | Olympics | 1980 | 0–0–1 1978 Praha bronze: 400 m hurdles | |
| Heather Armitage | ATH | Olympics | 1952—1956 | 1–0–0 1958 Stockholm gold: 100 m (competed as Heather Young) | |
| Tsanko Arnaudov | ATH | Olympics | 2016—2024 | 0–0–1 2016 Amsterdam bronze: shot put | |
| Christine Arron | ATH | Olympics | 2000—2008 | 2–1–0 1998 Budapest gold: 100 m and 4×100 m relay; 2010 Barcelona silver: 4×100 m relay | |
| Todor Artarski | ATH | Olympics / Non-starter | 1956—1960 | 0–1–0 1958 Stockholm silver: discus throw | |
| Maryna Arzamasava | ATH | Olympics | 2012—2016 | 1–1–0 2012 Helsinki silver: 800 m; 2014 Zürich gold: 800 m | |
| Yevgeny Arzhanov | ATH | Olympics | 1968—1972 | 1–0–0 1971 Helsinki gold: 800 m | |
| Dina Asher-Smith | ATH | Olympics | 2016—2024 | 4–1–0 2016 Amsterdam gold: 200 m, silver: 4×100 m relay; 2018 Berlin gold: 100 m, 200 m, and 4×100 m relay | |
| Arvo Askola | ATH | Olympics | 1936 | 0–1–0 1934 Torino silver: 10000 m | |
| Alina Astafei | ATH | Olympics | 1988—1996 | 0–0–1 1998 Budapest bronze: high jump (competed for Germany) | |
| Ihar Astapkovich | ATH | Olympics / Opening Flagbearer | 1992—2004 | 1–1–0 1990 Split gold: hammer throw (competed for the Soviet Union); 1994 Helsinki silver: hammer throw (competed for Belarus) | |
| Lennart Atterwall | ATH | Olympics | 1936 | 1–0–0 1946 Oslo gold: javelin throw | |
| Ingrid Auerswald-Lange | ATH | Olympics | 1980—1988 | 1–0–0 1986 Stuttgart gold: 4×100 m relay (competed as Ingrid Auerswald) | |
| Jéssica Augusto | ATH | Olympics | 2008—2016 | 1–1–3 2010 Barcelona silver: 10000 m, bronze: 5000 m; 2014 Zürich bronze: marathon; 2016 Amsterdam gold: half-marathon team, bronze: half-marathon | |
| Anna Avdeyeva | ATH | Olympics | 2012 | 1–0–0 2010 Barcelona gold: shot put | |
| Alex Averbukh | ATH | Olympics | 2000—2008 | 2–0–0 2002 München gold: pole vault; 2006 Göteborg gold: pole vault | |
| Esma Aydemir | ATH | Olympics | 2016 | 0–0–1 2016 Amsterdam bronze: half-marathon team | |
| Süreyya Ayhan | ATH | Olympics | 2000 | 1–0–0 2002 München gold: 1500 m | |
| Mehdi Baala | ATH | Olympics | 2000—2008 | 2–0–0 2002 München gold: 1500 m; 2006 Göteborg gold: 1500 m | |
| Lennart Back | ATH | Olympics | 1960 | 0–0–1 1958 Stockholm bronze: 20 km walk | |
| Rolf Back | ATH | Olympics | 1952 | 0–0–1 1954 Bern bronze: 4×400 m relay | |
| Steve Backley | ATH | Olympics | 1992—2004 | 4–0–0 1990 Split gold: javelin throw; 1994 Helsinki gold: javelin throw; 1998 Budapest gold: javelin throw; 2002 München gold: javelin throw | |
| Rose-Aimée Bacoul | ATH | Olympics / Non-starter | 1980—1984 | 0–0–2 1982 Athina bronze: 100 m and 4×100 m relay | |
| Andrzej Badeński | ATH | Olympics | 1964—1972 | 1–2–0 1966 Budapest gold: 4×400 m relay, silver: 400 m; 1971 Helsinki silver: 4×400 m relay | |
| Oleksandr Bahach | ATH | Olympics | 1996 | 1–1–0 1994 Helsinki silver: shot put; 1998 Budapest gold: shot put | |
| Meraf Bahta | ATH | Olympics | 2016—2020 | 1–1–1 2014 Zürich gold: 5000 m; 2016 Amsterdam silver: 5000 m; 2018 Berlin bronze: 10000 m | |
| Balázs Baji | ATH | Olympics | 2012—2016 | 0–1–0 2016 Amsterdam silver: 110 m hurdles | |
| Yury Bakarinov | ATH | Olympics | 1964 | 0–0–1 1962 Beograd bronze: hammer throw | |
| Chris Baker | ATH | Olympics | 2016 | 0–0–1 2016 Amsterdam bronze: high jump | |
| Yekaterina Bakhvalova | ATH | Olympics | 2004 | 0–2–0 1998 Budapest silver: 4×400 m relay; 2002 München silver: 4×400 m relay (ran in heats only) | |
| Béla Bakosi | ATH | Olympics / Non-starter | 1980—1988 | 0–0–1 1982 Athina bronze: triple jump | |
| Barbara Bakulin | ATH | Olympics / Non-starter | 1972—1976 | 0–0–1 1974 Roma bronze: 4×100 m relay | |
| Sergey Bakulin | ATH | Olympics | 2012 | 0–0–1 2010 Barcelona bronze: 50 km walk | |
| Jan Balachowski | ATH | Olympics | 1968—1972 | 0–1–0 1971 Helsinki silver: 4×400 m relay | |
| Anzhela Balakhonova | ATH | Olympics | 2000—2004 | 1–0–0 1998 Budapest gold: pole vault | |
| Iolanda Balaș | ATH | Olympics | 1956—1964 | 2–1–0 1954 Bern silver: high jump; 1958 Stockholm gold: high jump; 1962 Beograd gold: high jump | |
| Piotr Balcerzak | ATH | Olympics | 2000 | 0–1–1 1998 Budapest bronze: 4×100 m relay; 2002 München silver: 4×100 m relay (ran in heats only) | |
| Stefano Baldini | ATH | Olympics | 1996—2008 | 2–0–0 1998 Budapest gold: marathon; 2006 Göteborg gold: marathon | |
| Sean Baldock | ATH | Olympics | 2000—2004 | 2–0–0 1998 Budapest gold: 4×400 m relay (ran in heats only); 2002 München gold: 4×400 m relay | |
| Étienne Bally | ATH | Olympics | 1948—1952 | 1–2–0 1950 Bruxelles gold: 100 m, silver: 200 m and 4×100 m relay | |
| Györgyi Balogh-Szomov | ATH | Olympics | 1968—1972 | 0–1–0 1971 Helsinki silver: 200 m | |
| Falk Balzer | ATH | Olympics | 2000 | 0–1–0 1998 Budapest silver: 110 m hurdles | |
| Roger Bambuck | ATH | Olympics | 1964—1968 | 2–1–0 1966 Budapest gold: 200 m and 4×100 m relay, silver: 100 m | |
| Roger Bannister | ATH | Olympics | 1952 | 1–0–1 1950 Bruxelles bronze: 800 m; 1954 Bern gold: 1500 m | |
| Witold Baran | ATH | Olympics | 1964 | 0–1–0 1962 Beograd silver: 1500 m | |
| Otto Barch | ATH | Olympics | 1968—1976 | 0–1–0 1974 Roma silver: 50 km walk | |
| Emre Zafer Barnes | ATH | Olympics | 2016—2020 | 0–1–0 2018 Berlin silver: 4×100 m relay | |
| Thomas Barr | ATH | Olympics | 2016—2024 | 0–0–1 2018 Berlin bronze: 400 m hurdles | |
| Vicki Barr | ATH | Non-starter | 2008 | 0–1–0 2010 Barcelona silver: 4×400 m relay (ran in heats only) | |
| Romain Barras | ATH | Olympics | 2004—2008 | 1–0–0 2010 Barcelona gold: decathlon | |
| Ralf Bartels | ATH | Olympics / Non-starter | 2004—2012 | 1–1–1 2002 München bronze: shot put; 2006 Göteborg gold: shot put; 2010 Barcelona silver: shot put | |
| Leonid Bartenev | ATH | Olympics | 1956—1960 | 0–0–2 1954 Bern bronze: 4×100 m relay; 1958 Stockholm bronze: 4×100 m relay | |
| Jitka Bartoničková | ATH | Olympics | 2012 | 0–0–1 2012 Helsinki bronze: 4×400 m relay | |
| Aleksandr Baryshnikov | ATH | Olympics | 1972—1980 | 0–1–0 1978 Praha silver: shot put | |
| Dimitri Bascou | ATH | Olympics | 2012—2016 | 1–0–0 2016 Amsterdam gold: 110 m hurdles | |
| Inge Bauer | ATH | Olympics | 1968 | 0–0–1 1966 Budapest bronze: pentathlon (competed as Inge Exner) | |
| Jamie Baulch | ATH | Olympics | 1996—2000 | 2–0–0 1998 Budapest gold: 4×400 m relay; 2002 München gold: 4×400 m relay | |
| Herma Bauma | ATH | Olympics | 1936—1952 | 0–1–0 1950 Bruxelles silver: javelin throw | |
| Dieter Baumann | ATH | Olympics | 1988—1996 | 1–2–0 1994 Helsinki gold: 5000 m (competed for Germany); 1998 Budapest silver: 10000 m (competed for Germany); 2002 München silver: 10000 m (competed for Germany) | |
| Iga Baumgart-Witan | ATH | Olympics | 2012—2020 | 1–0–0 2018 Berlin gold: 4×400 m relay (competed as Iga Baumgart-Witan) | |
| Sebastian Bayer | ATH | Olympics | 2008—2012 | 1–0–0 2012 Helsinki gold: long jump | |
| Viktor Baykov | ATH | Olympics | 1964 | 0–0–1 1962 Beograd bronze: marathon | |
| Chiara Bazzoni | ATH | Olympics | 2012 | 0–0–2 2010 Barcelona bronze: 4×400 m relay; 2016 Amsterdam bronze: 4×400 m relay | |
| Luigi Beccali | ATH | Olympics | 1928—1936 | 1–0–1 1934 Torino gold: 1500 m; 1938 Paris bronze: 1500 m | |
| Pat Beckford | ATH | Olympics | 1988 | 0–0–1 1990 Split bronze: 4×400 m relay | |
| Peggy Beer | ATH | Olympics | 1992—1996 | 0–0–1 1990 Split bronze: heptathlon (competed for East Germany) | |
| Irina Beglyakova | ATH | Olympics | 1956 | 0–1–0 1954 Bern silver: discus throw | |
| Anke Behmer | ATH | Olympics | 1988 | 1–0–0 1986 Stuttgart gold: heptathlon | |
| Pascal Behrenbruch | ATH | Olympics | 2012 | 1–0–0 2012 Helsinki gold: decathlon | |
| Kerstin Behrendt | ATH | Olympics | 1988 | 1–0–1 1990 Split gold: 4×100 m relay, bronze: 100 m | |
| Rolf Beilschmidt | ATH | Olympics | 1976 | 0–0–1 1978 Praha bronze: high jump | |
| Ruth Beitía | ATH | Olympics | 2004—2016 | 3–0–0 2012 Helsinki gold: high jump; 2014 Zürich gold: high jump; 2016 Amsterdam gold: high jump | |
| Monika Bejnar | ATH | Olympics | 2004—2008 | 0–0–1 2006 Göteborg bronze: 4×400 m relay | |
| Maryna Bekh-Romanchuk | ATH | Olympics | 2016—2024 | 0–1–0 2018 Berlin silver: long jump | |
| Emir Bekrić | ATH | Olympics | 2012 | 0–1–0 2012 Helsinki silver: 400 m hurdles | |
| Maria Belimpasaki | ATH | Olympics | 2012—2016 | 0–1–0 2018 Berlin silver: 400 m | |
| Sergio Bello | ATH | Olympics | 1964—1972 | 0–0–1 1971 Helsinki bronze: 4×400 m relay | |
| Wilhem Belocian | ATH | Olympics | 2016—2024 | 0–0–1 2016 Amsterdam bronze: 110 m hurdles | |
| Claude Bénard | ATH | Olympics | 1948—1952 | 0–0–1 1950 Bruxelles bronze: high jump | |
| Luigi Benedetti | ATH | Olympics | 1972—1976 | 0–1–0 1974 Roma silver: 4×100 m relay | |
| Angelica Bengtsson | ATH | Olympics / YOG / Opening Flagbearer | 2010—2020 | 0–0–1 2016 Amsterdam bronze: pole vault | |
| Tim Benjamin | ATH | Olympics | 2004 | 0–1–0 2006 Göteborg silver: 4×400 m relay | |
| Todd Bennett | ATH | Olympics | 1984—1988 | 0–1–0 1982 Athina silver: 4×400 m relay | |
| Andrea Benvenuti | ATH | Olympics | 1992—1996 | 1–0–0 1994 Helsinki gold: 800 m | |
| Gudrun Berend | ATH | Olympics | 1976 | 0–0–1 1978 Praha bronze: 100 m hurdles | |
| Nikolay Berezutsky | ATH | Olympics | 1960 | 0–0–1 1962 Belgrade bronze: 110 m hurdles | |
| Otto Berg | ATH | Olympics / Opening Flagbearer | 1936 | 0–1–0 1934 Torino silver: long jump | |
| Chris Berger | ATH | Olympics | 1932—1936 | 2–0–1 1934 Torino gold: 100 m and 200 m, bronze: 4×100 m relay | |
| Gunnar Bergh | ATH | Olympics | 1936 | 0–0–1 1938 Paris bronze: discus throw | |
| Per-Arne Berglund | ATH | Olympics | 1948—1952 | 0–1–0 1950 Bruxelles silver: javelin throw | |
| Mette Bergmann | ATH | Olympics | 1992—1996 | 0–0–1 1994 Helsinki bronze: discus throw | |
| Kajsa Bergqvist | ATH | Olympics | 1996—2000 | 1–0–1 2002 München gold: high jump; 2006 Göteborg bronze: high jump | |
| Zuzana Bergrová | ATH | Olympics | 2012 | 0–0–1 2012 Helsinki bronze: 4×400 m relay | |
| Martyn Bernard | ATH | Olympics | 2008 | 0–0–1 2010 Barcelona bronze: high jump | |
| Berit Berthelsen | ATH | Olympics / Opening Flagbearer | 1964—1968 | 0–0–1 1969 Athina bronze: long jump | |
| Catherine Bertone | ATH | Olympics | 2016 | 0–1–0 2018 Berlin silver: marathon team | |
| Letizia Bertoni | ATH | Olympics | 1956—1960 | 0–0–1 1954 Bern bronze: 4×100 m relay | |
| Gilles Bertould | ATH | Olympics | 1968—1972 | 1–0–0 1969 Athina gold: 4×400 m relay | |
| Nadezhda Besfamilnaya | ATH | Olympics | 1972—1976 | 0–0–1 1971 Helsinki bronze: 4×100 m relay | |
| Doina Beșliu-Melinte | ATH | Olympics | 1980—1992 | 0–0–1 1986 Stuttgart bronze: 1500 m (competed as Doina Melinte) | |
| Colette Besson | ATH | Olympics | 1968—1972 | 0–2–0 1969 Athina silver: 400 m and 4×400 m relay | |
| Giuseppe Beviacqua | ATH | Olympics | 1936 | 0–1–0 1938 Paris silver: 10000 m | |
| Olle Bexell | ATH | Olympics | 1936 | 1–0–0 1938 Paris gold: decathlon | |
| Horst Beyer | ATH | Olympics | 1964—1972 | 0–0–1 1966 Budapest bronze: decathlon (competed for West Germany) | |
| Olaf Beyer | ATH | Olympics | 1980 | 1–0–0 1978 Praha gold: 800 m | |
| Udo Beyer | ATH | Olympics | 1976—1992 | 2–0–1 1978 Praha gold: shot put (competed for East Germany); 1982 Athina gold: shot put (competed for East Germany); 1986 Stuttgart bronze: shot put (competed for East Germany) | |
| Uwe Beyer | ATH | Olympics | 1964—1972 | 1–0–1 1966 Budapest bronze: hammer throw (competed for West Germany); 1971 Helsinki gold: hammer throw (competed for West Germany) | |
| Klaus Bieler | ATH | Olympics / Non-starter | 1972—1976 | 0–0–1 1974 Roma bronze: 100 m | |
| Mary Bignal-Rand | ATH | Olympics | 1960—1964 | 0–0–2 1962 Beograd bronze: 4×100 m relay and long jump (competed as Mary Rand) | |
| Madina Biktagirova | ATH | Olympics | 1992—2000 | 0–1–0 1998 Budapest silver: marathon (competed for Russia) | |
| Lyudmila Biktasheva | ATH | Olympics | 2000 | 0–0–1 2002 München bronze: 10000 m | |
| Borut Bilač | ATH | Olympics | 1992 | 0–0–1 1990 Split bronze: long jump | |
| Britta Bilač | ATH | Olympics | 1992—1996 | 1–0–0 1994 Helsinki gold: high jump | |
| Cindy Billaud | ATH | Olympics | 2016 | 0–1–0 2014 Zürich silver: 100 m hurdles | |
| Yuriy Bilonoh | ATH | Olympics | 2000—2008 | 1–0–1 1998 Budapest bronze: shot put; 2002 München gold: shot put | |
| Laurence Bily | ATH | Olympics | 1988—1992 | 0–0–1 1982 Athina bronze: 4×100 m relay | |
| Michael Bingham | ATH | Olympics | 2008 | 1–3–0 2010 Barcelona silver: 400 m and 4×400 m relay; 2012 Helsinki silver: 4×400 m relay (ran in heats only); 2014 Zürich gold: 4×400 m relay | |
| Anna Biryukova | ATH | Olympics | 1996 | 1–0–0 1994 Helsinki gold: triple jump | |
| Roger Black | ATH | Olympics / Closing Flagbearer | 1992—1996 | 5–1–0 1986 Stuttgart gold: 400 m and 4×400 m relay; 1990 Split gold: 400 m and 4×400 m relay; 1994 Helsinki gold: 4×400 m relay; 1994 Helsinki silver: 400 m | |
| José Luis Blanco | ATH | Olympics | 2008 | 0–1–0 2006 Göteborg silver: 3000 m steeplechase | |
| Fanny Blankers-Koen | ATH | Olympics | 1936—1952 | 5–1–2 1938 Wien bronze: 100 m and 200 m; 1946 Oslo gold: 80 m hurdles and 4×100 m relay; 1950 Bruxelles gold: 100 m, 200 m, and 80 m hurdles, silver: 4×100 m relay | |
| Erwin Blask | ATH | Olympics | 1936 | 0–1–0 1938 Paris silver: hammer throw | |
| Genowefa Błaszak | ATH | Olympics / Non-starter | 1976—1988 | 0–0–2 1978 Praha bronze: 4×400 m relay; 1986 Stuttgart bronze: 4×400 m relay | |
| Pavol Blažek | ATH | Olympics | 1980—1996 | 1–0–1 1982 Athina bronze: 20 km walk (competed for Czechoslovakia); 1990 Split gold: 20 km walk (competed for Czechoslovakia) | |
| Holly Bleasdale-Bradshaw | ATH | Olympics | 2012—2024 | 0–0–1 2018 Berlin bronze: pole vault (competed as Holly Bradshaw) | |
| Alan Blinston | ATH | Olympics | 1968 | 0–0–1 1969 Athina bronze: 5000 m | |
| Alain Blondel | ATH | Olympics | 1988—1992 | 1–0–0 1994 Helsinki gold: decathlon | |
| Marc Blume | ATH | Olympics | 1996—2000 | 0–0–1 2002 München bronze: 4×100 m relay | |
| Lillian Board | ATH | Olympics | 1968 | 2–0–0 1969 Athina gold: 800 m and 4×400 m relay | |
| Katsiaryna Bobryk | ATH | Non-starter | 2008 | 0–1–0 2006 Göteborg silver: 4×400 m relay (ran in heats only) | |
| Nataliya Bochina | ATH | Olympics | 1980 | 0–0–1 1986 Stuttgart bronze: 4×100 m relay | |
| Jacek Bocian | ATH | Olympics | 2000 | 0–1–0 1998 Budapest silver: 4×400 m relay (ran in heats only) | |
| Manfred Bock | ATH | Olympics | 1960 | 0–0–1 1962 Beograd bronze: decathlon | |
| Inge Bödding | ATH | Olympics | 1972 | 0–2–1 1969 Athina bronze: 4×400 m relay (competed as Inge Eckhoff); 1971 Helsinki silver: 400 m and 4×400 m relay | |
| Patrik Bodén | ATH | Olympics | 1992—2000 | 0–0–1 1990 Split bronze: javelin throw | |
| Carla Bodendorf | ATH | Olympics | 1976 | 0–0–2 1978 Praha bronze: 200 m and 4×100 m relay | |
| Tjeerd Boersma | ATH | Olympics | 1936 | 0–0–1 1934 Torino bronze: 4×100 m relay | |
| Luděk Bohman | ATH | Olympics | 1972 | 1–0–1 1969 Athina bronze: 4×100 m relay; 1971 Helsinki gold: 4×100 m relay | |
| Raymond Boisset | ATH | Olympics | 1936 | 0–1–0 1934 Torino silver: 4×400 m relay | |
| Kirsten Bolm | ATH | Olympics | 2004 | 0–1–0 2006 Göteborg silver: 400 m hurdles | |
| Pyotr Bolotnikov | ATH | Olympics | 1956—1964 | 1–0–1 1962 Beograd gold: 10000 m, bronze: 5000 m | |
| Svetlana Bolshakova | ATH | Olympics | 2012 | 0–0–1 2010 Barcelona bronze: triple jump | |
| Hans-Jürgen Bombach | ATH | Olympics | 1972 | 0–0–2 1974 Roma bronze: 200 m, bronze: 4×100 m relay |