Host cities:
2023 Budapest (HUN) 19-27 August 2023
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Mariya Abakumova | ATH | Olympics | 2008—2012 | 0–0–1 2013 Moskva bronze: javelin throw | |
| Abubakar Abbas | ATH | Olympics | 2016 | 0–0–1 2019 Doha bronze: 4×400 m mixed relay | |
| Ihab Abdelrahman | ATH | Olympics | 2012—2024 | 0–1–0 2015 Beijing silver: javelin throw | |
| Andrey Abduvaliyev | ATH | Olympics / Opening Flagbearer | 1992—2000 | 2–0–0 1993 Stuttgart gold: hammer throw (competed for Tajikistan); 1995 Göteborg gold: hammer throw (competed for Tajikistan) | |
| Gezahegne Abera | ATH | Olympics | 2000 | 1–0–0 2001 Edmonton gold: marathon | |
| Valerie Adams-Vili | ATH | Olympics / Closing Flagbearer | 2004—2020 | 4–1–0 2005 Helsinki silver: shot put (competed as Valerie Vili); 2007 Osaka gold: shot put (competed as Valerie Vili); 2009 Berlin gold: shot put (competed as Valerie Vili); 2011 Daegu gold: shot put (competed as Valerie Adams); 2013 Moskva gold: shot put (competed as Valerie Adams) | |
| Antoine Adams | ATH | Olympics / Opening Flagbearer / Closing Flagbearer | 2012—2016 | 0–0–1 2011 Daegu bronze: 4×100 m relay | |
| Olapade Adeniken | ATH | Olympics | 1988—1996 | 0–1–0 1997 Athens silver: 4×100 m relay | |
| Margaret Adeoye | ATH | Olympics | 2012 | 0–1–0 2013 Moskva silver: 4×400 m relay | |
| Berhane Adere | ATH | Olympics | 1996—2008 | 1–2–0 2001 Edmonton silver: 10000 m; 2003 Saint-Denis gold: 10000 m; 2005 Helsinki silver: 10000 m | |
| Derrick Adkins | ATH | Olympics | 1996 | 1–0–0 1995 Göteborg gold: 400 m hurdles | |
| Yelena Afanasyeva | ATH | Olympics | 1996 | 0–1–0 1997 Athens silver: 800 m | |
| Ajayi Agbebaku | ATH | Olympics | 1984 | 0–0–1 1983 Helsinki bronze: triple jump | |
| Moh Ahmed | ATH | Olympics | 2012—2024 | 0–0–1 2019 Doha bronze: 5000 m | |
| Murielle Ahouré-Demps | ATH | Olympics / Opening Flagbearer | 2012—2024 | 0–2–0 2013 Moskva silver: 100 m and 200 m | |
| Michelle-Lee Ahye | ATH | Olympics / Opening Flagbearer | 2012—2024 | 0–0–1 2015 Beijing bronze: 4×100 m relay | |
| Harry Aikines-Aryeetey | ATH | Olympics / Non-starter | 2008—2016 | 0–0–1 2009 Berlin bronze: 4×100 m relay | |
| Kriss Akabusi | ATH | Olympics | 1984—1992 | 1–1–2 1983 Helsinki bronze: 4×400 m relay (ran in heats and semi-finals only); 1987 Rome silver: 4×400 m relay; 1991 Tokyo gold: 4×400 m relay, bronze: 400 m hurdles | |
| Morolake Akinosun | ATH | Olympics | 2016 | 1–0–1 2017 London gold: 4×100 m relay; 2019 Doha bronze: 4×100 m relay | |
| Saad Al-Asmari | Closing Flagbearer | 2008 | 0–0–1 1995 Göteborg bronze: 3000 m steeplechase | ||
| Yamilé Aldama | ATH | Olympics / Non-starter | 1996—2012 | 0–1–0 1999 Sevilla silver: triple jump (competed for Cuba) | |
| Virgilijus Alekna | ATH | Olympics / Opening Flagbearer | 1996—2012 | 2–2–0 1997 Athens silver: discus throw; 2001 Edmonton silver: discus throw; 2003 Saint-Denis gold: discus throw; 2005 Helsinki gold: discus throw | |
| Nia Ali | ATH | Olympics | 2016 | 1–0–0 2019 Doha gold: 100 m hurdles | |
| Nathon Allen | ATH | Olympics | 2016—2020 | 0–2–0 2019 Doha silver: 4×400 m relay and 4×400 m mixed relay | |
| Glory Alozie | ATH | Olympics | 2000—2004 | 0–1–0 1999 Sevilla silver: 100 m hurdles | |
| Mohammed Aman | ATH | Olympics / YOG | 2010—2016 | 1–0–0 2013 Moskva gold: 800 m | |
| Christine Amertil | ATH | Olympics | 2000—2016 | 0–1–0 2009 Berlin silver: 4×100 m relay | |
| Phara Anacharsis | ATH | Olympics | 2008—2016 | 0–0–1 2013 Moskva bronze: 4×400 m relay (ran in heats only) | |
| Grete Andersen-Waitz | ATH | Olympics / Olympic Flagbearer / Opening Flagbearer | 1972—1994 | 1–0–0 1983 Helsinki gold: marathon (competed as Grete Waitz) | |
| Andrea Anderson | ATH | Olympics | 2000 | 0–1–0 1999 Sevilla silver: 4×400 m relay (ran in heats only) | |
| Marvin Anderson | ATH | Olympics | 2008 | 0–1–0 2007 Osaka silver: 4×100 m relay | |
| Alessandro Andrei | ATH | Olympics | 1984—1992 | 0–1–0 1987 Rome silver: shot put | |
| Tatyana Andrianova | ATH | Olympics | 2004—2008 | 0–0–1 2005 Helsinki bronze: 800 m | |
| Adrián Annus | ATH | Olympics | 1996—2004 | 0–1–0 2003 Saint-Denis silver: hammer throw | |
| Abel Antón | ATH | Olympics | 1988—2000 | 2–0–0 1997 Athens gold: marathon; 1999 Sevilla gold: marathon | |
| Nataliya Antyukh | ATH | Olympics | 2004—2012 | 1–0–1 2005 Helsinki gold: 4×400 m relay; 2011 Daegu bronze: 400 m hurdles | |
| Saïd Aouita | ATH | Olympics / Non-starter | 1984—1992 | 1–0–1 1983 Helsinki bronze: 1500 m; 1987 Rome gold: 5000 m | |
| Hirooki Arai | ATH | Olympics | 2016 | 0–1–0 2017 London silver: 50 km walk | |
| Abeba Aregawi | ATH | Olympics | 2012 | 1–0–0 2013 Moskva gold: 1500 m (competed for Sweden) | |
| Éider Arévalo | ATH | Olympics / YOG / Opening Flagbearer | 2010—2020 | 1–0–0 2017 London gold: 20 km walk | |
| Dylan Armstrong | ATH | Olympics | 2008—2012 | 0–1–1 2011 Daegu silver: shot put; 2013 Moskva bronze: shot put | |
| Christine Arron | ATH | Olympics | 2000—2008 | 1–1–3 1997 Athens bronze: 4×100 m relay; 1999 Sevilla silver: 4×100 m relay; 2003 Saint-Denis gold: 4×100 m relay; 2005 Helsinki bronze: 100 m and 200 m | |
| Maryna Arzamasava | ATH | Olympics | 2012—2016 | 1–0–0 2015 Beijing gold: 800 m | |
| Junko Asari | ATH | Olympics | 1996 | 1–0–0 1993 Stuttgart gold: marathon | |
| Dina Asher-Smith | ATH | Olympics | 2016—2024 | 1–3–1 2013 Moskva bronze: 4×100 m relay; 2017 London silver: 4×100 m relay; 2019 Doha gold: 200 m, silver: 100 m and 4×100 m relay | |
| Nickel Ashmeade | ATH | Olympics | 2016 | 2–0–0 2013 Moskva gold: 4×100 m relay; 2015 Beijing gold: 4×100 m relay | |
| Sofia Assefa | ATH | Olympics | 2008—2016 | 0–0–1 2013 Moskva bronze: 3000 m steeplechase | |
| Alina Astafei | ATH | Olympics | 1988—1996 | 0–1–0 1995 Göteborg silver: high jump (competed for Germany) | |
| Nadzeya Astapchuk | ATH | Olympics | 2004—2012 | 0–3–0 2003 Saint-Denis silver: shot put; 2007 Osaka silver: shot put; 2011 Daegu silver: shot put | |
| Ihar Astapkovich | ATH | Olympics / Opening Flagbearer | 1992—2004 | 0–3–0 1991 Tokyo silver: hammer throw (competed for the Soviet Union); 1993 Stuttgart silver: hammer throw (competed for Belarus); 1995 Göteborg silver: hammer throw (competed for Belarus) | |
| Derrick Atkins | ATH | Olympics | 2008—2012 | 0–1–0 2007 Osaka silver: 100 m | |
| Ingrid Auerswald-Lange | ATH | Olympics | 1980—1988 | 1–0–0 1983 Helsinki gold: 4×100 m relay (competed as Ingrid Auerswald) | |
| Charles Austin | ATH | Olympics | 1992—2000 | 1–0–0 1991 Tokyo gold: high jump | |
| Gennady Avdeyenko | ATH | Olympics | 1988 | 1–1–0 1983 Helsinki gold: high jump; 1987 Rome silver: high jump | |
| Alex Averbukh | ATH | Olympics | 2000—2008 | 0–1–1 1999 Sevilla bronze: pole vault; 2001 Edmonton silver: pole vault | |
| Almaz Ayana | ATH | Olympics / Closing Flagbearer | 2016 | 2–1–1 2013 Moskva bronze: 5000 m; 2015 Beijing gold: 5000 m; 2017 London gold: 10000 m, silver: 5000 m | |
| Süreyya Ayhan | ATH | Olympics | 2000 | 0–1–0 2003 Saint-Denis silver: 1500 m | |
| Sanjay Ayre | ATH | Olympics | 2000—2008 | 0–0–1 2005 Helsinki bronze: 4×400 m relay | |
| Marina Azyabina | ATH | Olympics | 1992 | 0–1–0 1993 Stuttgart silver: 100 m hurdles (competed for Russia) | |
| Mehdi Baala | ATH | Olympics | 2000—2008 | 0–1–0 2003 Saint-Denis silver: 1500 m | |
| Inha Babakova | ATH | Olympics | 1996—2004 | 1–2–2 1991 Tokyo bronze: high jump (competed for the Soviet Union); 1995 Göteborg bronze: high jump; 1997 Athens silver: high jump; 1999 Sevilla gold: high jump; 2001 Edmonton silver: high jump | |
| Steve Backley | ATH | Olympics | 1992—2004 | 0–2–0 1995 Göteborg silver: javelin throw; 1997 Athens silver: javelin throw | |
| Sunday Bada | ATH | Olympics / Opening Flagbearer | 1992—2000 | 0–0–1 1995 Göteborg bronze: 4×400 m relay | |
| Kateřina Baďurová | ATH | Olympics | 2004—2008 | 0–1–0 2007 Osaka silver: pole vault | |
| István Bagyula | ATH | Olympics | 1988—1992 | 0–1–0 1991 Tokyo silver: pole vault | |
| Oleksandr Bahach | ATH | Olympics | 1996 | 0–0–2 1993 Stuttgart bronze: shot put; 1999 Sevilla bronze: shot put | |
| Bai Xue | ATH | Olympics | 2008 | 1–0–0 2009 Berlin gold: marathon | |
| Kemar Bailey-Cole | ATH | Olympics | 2012—2016 | 1–0–0 2013 Moskva gold: 4×100 m relay | |
| Aleen Bailey | ATH | Olympics | 2004—2008 | 1–1–1 1999 Sevilla bronze: 4×100 m relay; 2005 Helsinki silver: 4×100 m relay; 2009 Berlin gold: 4×100 m relay | |
| Donovan Bailey | ATH | Olympics | 1996—2000 | 3–1–0 1995 Göteborg gold: 100 m and 4×100 m relay; 1997 Stuttgart gold: 4×100 m relay, silver: 100 m | |
| Balázs Baji | ATH | Olympics | 2012—2016 | 0–0–1 2017 London bronze: 110 m hurdles | |
| Keshia Baker | ATH | Olympics | 2012 | 1–0–0 2011 Daegu gold: 4×400 m relay | |
| Yekaterina Bakhvalova | ATH | Olympics | 2004 | 1–0–0 1999 Sevilla gold: 4×400 m relay (ran in heats only) | |
| Soufiane El-Bakkali | ATH | Olympics / Closing Flagbearer | 2016—2024 | 0–1–1 2017 London silver: 3000 m steeplechase; 2019 Doha bronze: 3000 m steeplechase | |
| Anzhela Balakhonova | ATH | Olympics | 2000—2004 | 0–1–0 1999 Sevilla silver: pole vault | |
| Kebede Balcha | ATH | Olympics | 1980 | 0–1–0 1983 Helsinki silver: marathon | |
| Stefano Baldini | ATH | Olympics | 1996—2008 | 0–0–2 2001 Edmonton bronze: marathon; 2003 Saint-Denis bronze: marathon | |
| Patrick van Balkom | ATH | Olympics | 2004 | 0–0–1 2003 Saint-Denis bronze: 4×100 m relay | |
| Witold Bańka | Administrator | 2020 | 0–0–1 2007 Osaka bronze: 4×400 m relay (ran in heats only) | ||
| Willie Banks | ATH | Olympics | 1984—1988 | 0–1–0 1983 Helsinki silver: triple jump | |
| Joan Baptiste | ATH | Olympics | 1984 | 0–1–0 1983 Helsinki silver: 4×100 m relay | |
| Kelly-Ann Baptiste | ATH | Olympics / Opening Flagbearer | 2004—2020 | 0–0–2 2011 Daegu bronze: 100 m; 2015 Beijing bronze: 4×100 m relay | |
| Eunice Barber | ATH | Olympics / Opening Flagbearer | 1992—2004 | 2–3–0 1999 Sevilla gold: heptathlon (competed for France); 2003 Saint-Denis gold: long jump, silver: heptathlon (competed for France); 2005 Helsinki silver: long jump and heptathlon (competed for France) | |
| Shawn Barber | ATH | Olympics | 2016 | 1–0–0 2015 Beijing gold: pole vault | |
| Zequinha Barbosa | ATH | Olympics | 1984—1996 | 0–1–1 1987 Rome bronze: 800 m; 1991 Tokyo silver: 800 m | |
| Bernard Barmasai | ATH | Olympics | 2000 | 0–0–2 1997 Athens bronze: 3000 m steeplechase; 2001 Edmonton bronze: 3000 m steeplechase | |
| Randy Barnes | ATH | Olympics | 1988—1996 | 0–1–1 1993 Stuttgart silver: shot put; 1995 Göteborg bronze: shot put | |
| Vicki Barr | ATH | Non-starter | 2008 | 0–0–1 2009 Berlin bronze: 4×400 m relay | |
| Brigetta Barrett | ATH | Olympics | 2012 | 0–1–0 2013 Moskva silver: high jump | |
| Jenny Barringer-Simpson | ATH | Olympics | 2008—2016 | 1–2–0 2011 Daegu gold: 1500 m (competed as Jenny Simpson); 2013 Moskva silver: 1500 m (competed as Jenny Simpson); 2017 London silver: 1500 m (competed as Jenny Simpson) | |
| Yarelis Barrios | ATH | Olympics | 2008—2012 | 0–2–2 2007 Osaka silver: discus throw; 2009 Berlin silver: discus throw; 2011 Daegu bronze: discus throw; 2013 Moskva bronze: discus throw | |
| Trevor Barry | ATH | Olympics | 2012—2016 | 0–0–1 2011 Daegu bronze: high jump | |
| Mutaz Essa Barshim | ATH | Olympics / Opening Flagbearer | 2012—2024 | 2–1–0 2013 Moskva silver: high jump; 2017 London gold: high jump; 2019 Doha gold: high jump | |
| Sally Barsosio | ATH | Olympics | 1996—2004 | 1–0–1 1993 Stuttgart bronze: 10000 m; 1997 Athens gold: 10000 m | |
| Ralf Bartels | ATH | Olympics / Non-starter | 2004—2012 | 0–0–2 2005 Helsinki bronze: shot put; 2009 Berlin bronze: shot put | |
| Adam Basil | ATH | Olympics | 2004 | 0–0–1 2001 Edmonton bronze: 4×100 m relay | |
| Kim Batten | ATH | Olympics | 1996—2000 | 1–1–1 1995 Göteborg gold: 400 m hurdles; 1997 Athens silver: 4×400 m relay, bronze: 400 m hurdles | |
| Jamie Baulch | ATH | Olympics | 1996—2000 | 1–0–0 1997 Athens gold: 4×400 m relay | |
| Iga Baumgart-Witan | ATH | Olympics | 2012—2020 | 0–1–1 2017 London bronze: 4×400 m relay; 2019 Doha silver: 4×400 m relay (competed as Iga Baumgart-Witan) | |
| Fita Bayesa | ATH | Olympics / Opening Flagbearer | 1992—2000 | 0–1–1 1991 Tokyo silver: 5000 m; 1993 Stuttgart bronze: 5000 m | |
| Timothy Beck | ATH/BOB | Olympics / Opening Flagbearer | 2002—2010 | 0–0–1 2003 Saint-Denis bronze: 4×100 m relay | |
| Allison Beckford | ATH | Olympics | 2004 | 0–0–1 2003 Saint-Denis bronze: 4×400 m relay | |
| James Beckford | ATH | Olympics | 1996—2004 | 0–2–0 1995 Göteborg silver: long jump; 2003 Saint-Denis silver: long jump | |
| Violeta Beclea-Szekely | ATH | Olympics | 1992—2000 | 0–1–0 2001 Edmonton silver: 1500 m (competed as Violeta Szekely) | |
| Sylwester Bednarek | ATH | Olympics | 2016 | 0–0–1 2009 Berlin bronze: high jump | |
| Anke Behmer | ATH | Olympics | 1988 | 0–0–1 1983 Helsinki bronze: heptathlon (competed as Anke Vater) | |
| Kerstin Behrendt | ATH | Olympics | 1988 | 0–1–0 1987 Rome silver: 4×100 m relay | |
| Ruth Beitía | ATH | Olympics | 2004—2016 | 0–0–1 2013 Moskva bronze: high jump | |
| Kenenisa Bekele | ATH | Olympics / Closing Flagbearer | 2004—2024 | 5–0–1 2003 Saint-Denis gold: 10000 m, bronze: 5000 m; 2005 Helsinki gold: 10000 m; 2007 Osaka gold: 10000 m; 2009 Berlin gold: 5000 m and 10000 m | |
| Maryna Bekh-Romanchuk | ATH | Olympics | 2016—2024 | 0–1–0 2019 Doha silver: long jump (competed as Maryna Bekh-Romanchuk) | |
| Emir Bekrić | ATH | Olympics | 2012 | 0–0–1 2013 Moskva bronze: 400 m hurdles | |
| Yelena Belevskaya | ATH | Olympics | 1988 | 0–1–0 1987 Rome silver: long jump | |
| Irina Belova | ATH | Olympics | 1992 | 0–0–1 1991 Tokyo bronze: heptathlon (competed for the Soviet Union) | |
| Hasna Benhassi | ATH | Olympics | 2000—2008 | 0–2–0 2005 Helsinki silver: 800 m; 2007 Osaka silver: 800 m | |
| Ainsley Bennett | ATH | Olympics | 1976 | 0–0–1 1983 Helsinki bronze: 4×400 m relay | |
| Todd Bennett | ATH | Olympics | 1984—1988 | 0–1–1 1983 Helsinki bronze: 4×400 m relay; 1987 Rome silver: 4×400 m relay (ran in heats and semi-finals only) | |
| Larisa Berezhnaya | ATH | Olympics | 1992 | 0–1–1 1991 Tokyo bronze: long jump (competed for the Soviet Union); 1993 Stuttgart silver: long jump (competed for Ukraine) | |
| Kajsa Bergqvist | ATH | Olympics | 1996—2000 | 1–0–2 2001 Edmonton bronze: high jump; 2003 Saint-Denis bronze: high jump; 2005 Helsinki gold: high jump | |
| Doina Beșliu-Melinte | ATH | Olympics | 1980—1992 | 0–0–1 1987 Rome bronze: 1500 m (competed as Doina Melinte) | |
| Yoandri Betanzos | ATH | Olympics | 2004—2012 | 0–2–0 2003 Saint-Denis silver: triple jump; 2005 Helsinki silver: triple jump | |
| Nicholas Bett | ATH | Olympics | 2016 | 1–0–0 2015 Beijing gold: 400 m hurdles | |
| Nezha Bidouane | ATH | Olympics / Opening Flagbearer | 1992—2004 | 2–1–0 1997 Athens gold: 400 m hurdles; 1999 Sevilla silver: 400 m hurdles; 2001 Edmonton gold: 400 m hurdles | |
| Quentin Bigot | ATH | Olympics | 2012—2020 | 0–1–0 2019 Doha silver: hammer throw | |
| Abdi Bile | ATH | Olympics / Opening Flagbearer | 1984—1996 | 1–0–1 1987 Rome gold: 1500 m; 1993 Stuttgart bronze: 1500 m | |
| Yuriy Bilonoh | ATH | Olympics | 2000—2008 | 0–0–1 2003 Saint-Denis bronze: shot put | |
| Michael Bingham | ATH | Olympics | 2008 | 0–1–0 2009 Berlin silver: 4×400 m relay | |
| Anna Biryukova | ATH | Olympics | 1996 | 1–0–1 1993 Stuttgart gold: triple jump; 1995 Göteborg bronze: triple jump | |
| Melissa Bishop-Nriagu | ATH | Olympics | 2012—2020 | 0–1–0 2015 Beijing silver: 800 m | |
| Sonia Bisset | ATH | Olympics | 2000—2004 | 0–0–1 2001 Edmonton bronze: javelin throw | |
| Roger Black | ATH | Olympics / Closing Flagbearer | 1992—1996 | 2–2–0 1987 Rome silver: 4×400 m relay; 1991 Tokyo gold: 4×400 m relay, silver: 400 m; 1997 Athens gold: 4×400 m relay | |
| Michael Blackwood | ATH | Olympics | 2000—2008 | 0–2–2 2001 Edmonton silver: 4×400 m relay (ran in heats only); 2003 Saint-Denis silver: 4×400 m relay and bronze: 400 m; 2005 Helsinki bronze: 4×400 m relay (ran in heats only) | |
| Dennis Blake | ATH | Olympics | 1992—1996 | 0–1–0 1995 Göteborg silver: 4×400 m relay (ran in heats only) | |
| Yohan Blake | ATH | Olympics | 2012—2020 | 2–0–0 2011 Daegu gold: 100 m and 4×100 m relay | |
| Keston Bledman | ATH | Olympics | 2008—2016 | 0–1–0 2009 Berlin silver: 4×100 m relay (ran in heats only) | |
| Rens Blom | ATH | Olympics | 2000—2004 | 1–0–0 2005 Helsinki gold: pole vault | |
| Liudmyla Blonska | ATH | Olympics | 2008 | 0–1–0 2007 Osaka silver: heptathlon | |
| Anju Bobby George | ATH | Olympics / Opening Flagbearer / Closing Flagbearer | 2004—2008 | 0–0–1 2003 Saint-Denis bronze: long jump | |
| Jacek Bocian | ATH | Olympics | 2000 | 1–0–1 1999 Sevilla gold: 4×400 m relay; 2001 Edmonton bronze: 4×400 m relay (ran in heats only) | |
| Olga Bogoslovskaya | ATH | Olympics | 1992 | 1–0–0 1993 Stuttgart gold: 4×100 m relay (competed for Russia) | |
| Wilson Boit Kipketer | ATH | Olympics | 2000 | 1–1–0 1997 Athens gold: 3000 m steeplechase; 1999 Sevilla silver: 3000 m steeplechase | |
| Ato Boldon | ATH | Olympics / Opening Flagbearer | 1992—2004 | 1–1–2 1995 Göteborg bronze: 100 m; 1997 Athens gold: 200 m; 2001 Edmonton silver: 4×100 m relay, bronze: 100 m | |
| Usain Bolt | ATH | Olympics / Opening Flagbearer | 2004—2016 | 11–2–1 2007 Osaka silver: 200 m and 4×100 m relay; 2009 Berlin gold: 100 m, 200 m, and 4×100 m relay; 2011 Daegu gold: 200 m and 4×100 m relay; 2013 Moskva gold: 100 m, 200 m, and 4×100 m relay; 2015 Beijing gold: 100 m, 200 m, and 4×100 m relay; 2017 London bronze: 100 m | |
| Bohdan Bondarenko | ATH | Olympics | 2012—2016 | 1–1–0 2013 Moskva gold: high jump; 2015 Beijing silver: high jump | |
| Caio Bonfim | ATH | Olympics | 2012—2024 | 0–0–1 2017 London bronze: 20 km walk | |
| Gelindo Bordin | ATH | Olympics | 1988—1992 | 0–0–1 1987 Rome bronze: marathon | |
| Lázaro Borges | ATH | Olympics | 2008—2012 | 0–1–0 2011 Daegu silver: pole vault | |
| Dylan Borlée | ATH | Olympics | 2016—2024 | 0–0–1 2019 Doha bronze: 4×400 m relay | |
| Kévin Borlée | ATH | Olympics | 2008—2024 | 0–0–2 2011 Daegu bronze: 400 m; 2019 Doha bronze: 4×400 m relay | |
| Olivia Borlée | ATH | Olympics / Opening Flagbearer | 2008—2016 | 0–0–1 2007 Osaka bronze: 4×100 m relay | |
| Yury Borzakovsky | ATH | Olympics | 2000—2012 | 0–2–2 2003 Saint-Denis silver: 800 m; 2005 Helsinki silver: 800 m; 2007 Osaka bronze: 800 m; 2011 Daegu bronze: 800 m | |
| Pierre-Ambroise Bosse | ATH | Olympics | 2012—2020 | 1–0–0 2017 London gold: 800 m | |
| Mark Boswell | ATH | Olympics | 2000—2004 | 0–1–1 1999 Sevilla silver: high jump; 2003 Saint-Denis bronze: high jump | |
| Khalid Boulami | ATH | Olympics | 1996 | 0–2–0 1995 Göteborg silver: 5000 m; 1997 Athens silver: 5000 m | |
| Hassiba Boulmerka | ATH | Olympics / Administrator | 1988—2000 | 2–0–1 1991 Tokyo gold: 1500 m; 1993 Stuttgart bronze: 1500 m; 1995 Göteborg gold: 1500 m | |
| Brahim Boutayeb | ATH | Olympics | 1988—1992 | 0–0–1 1991 Tokyo bronze: 5000 m | |
| Tori Bowie | ATH | Olympics | 2016 | 2–0–1 2015 Beijing bronze: 100 m; 2017 London gold: 100 m and 4×100 m relay | |
| Azzedine Brahmi | ATH | Olympics | 1988—1992 | 0–0–1 1991 Tokyo bronze: 3000 m steeplechase | |
| Darren Braithwaite | ATH | Olympics | 1996 | 0–1–2 1991 Tokyo bronze: 4×100 m relay; 1993 Stuttgart silver: 4×100 m relay (ran in heats only); 1997 Athens bronze: 4×100 m relay | |
| Ryan Brathwaite | ATH | Olympics / Opening Flagbearer / Closing Flagbearer | 2008—2012 | 1–0–0 2009 Berlin gold: 110 m hurdles | |
| Sabine Braun | ATH | Olympics | 1984—2000 | 2–1–0 1991 Tokyo gold: heptathlon (competed for Germany); 1993 Stuttgart silver: heptathlon (competed for Germany); 1997 Athens gold: heptathlon (competed for Germany) | |
| Grit Breuer | ATH | Olympics | 1988—2004 | 1–2–3 1991 Tokyo silver: 400 m, bronze: 4×100 m relay and 4×400 m relay (competed for Germany); 1997 Athens gold: 4×400 m relay (competed for Germany); 1999 Sevilla bronze: 4×400 m relay (competed for Germany); 2001 Edmonton silver: 4×400 m relay (competed for Germany) | |
| Derrick Brew | ATH | Olympics | 2004 | 1–0–0 2005 Helsinki gold: 4×400 m relay | |
| Steve Brimacombe | ATH | Olympics | 1996 | 0–1–1 1995 Göteborg silver: 4×100 m relay; 2001 Edmonton bronze: 4×100 m relay | |
| Valerie Brisco-Hooks | ATH | Olympics | 1984—1988 | 0–0–1 1987 Rome bronze: 4×400 m relay (competed as Valerie Brisco) | |
| Okkert Brits | ATH | Olympics | 1996—2004 | 0–1–0 2003 Saint-Denis silver: pole vault | |
| Trayvon Bromell | ATH | Olympics | 2016—2020 | 0–0–1 2015 Beijing bronze: 100 m | |
| Bryan Bronson | ATH | Olympics | 1996 | 0–0–1 1997 Athens bronze: 400 m hurdles | |
| Sheri-Ann Brooks | ATH | Olympics | 2008 | 1–1–0 2007 Osaka silver: 4×100 m relay; 2013 Moskva gold: 4×100 m relay (ran in heats only) | |
| Aaron Brown | ATH | Olympics | 2012—2024 | 0–0–2 2013 Moskva bronze: 4×100 m relay; 2015 Beijing bronze: 4×100 m relay | |
| Alice Brown | ATH | Olympics | 1984—1988 | 1–0–0 1987 Rome gold: 4×100 m relay | |
| Chris Brown | ATH | Olympics / Opening Flagbearer | 2000—2016 | 1–2–1 2001 Edmonton gold: 4×400 m relay; 2003 Saint-Denis bronze: 4×400 m relay; 2005 Helsinki silver: 4×400 m relay; 2007 Osaka silver: 4×400 m relay | |
| Darrel Brown | ATH | Olympics | 2004—2008 | 0–4–0 2001 Edmonton silver: 4×100 m relay; 2003 Saint-Denis silver: 100 m; 2005 Helsinki silver: 4×100 m relay; 2009 Berlin silver: 4×100 m relay | |
| Phil Brown | ATH | Olympics | 1984—1988 | 0–1–1 1983 Helsinki bronze: 4×400 m relay; 1987 Rome silver: 4×400 m relay | |
| Ivano Brugnetti | ATH | Olympics | 2000—2008 | 1–0–0 1999 Sevilla gold: 50 km walk | |
| Erik de Bruin | ATH | Olympics | 1984—1988 | 0–1–0 1991 Tokyo silver: discus throw | |
| Ese Brume | ATH | Olympics | 2016—2024 | 0–0–1 2019 Doha bronze: long jump | |
| Roberta Brunet | ATH | Olympics | 1988—2000 | 0–1–0 1997 Athens silver: 5000 m | |
| Arto Bryggare | ATH | Olympics | 1980—1992 | 0–1–0 1983 Helsinki silver: 110 m hurdles | |
| Viktor Bryzgin | ATH | Olympics | 1988 | 0–1–1 1983 Helsinki bronze: 4×100 m relay; 1987 Rome silver: 4×100 m relay | |
| Olga Bryzgina | ATH | Olympics | 1988—1992 | 2–1–0 1987 Rome gold: 400 m, silver: 4×400 m relay (competed for the Soviet Union); 1991 Tokyo gold: 4×400 m relay (competed for the Soviet Union) | |
| Sergey Bubka | ATH | Olympics / Non-starter / Administrator / Olympic Flagbearer / Opening Flagbearer | 1988—2022 | 6–0–0 1983 Helsinki gold: pole vault (competed for the Soviet Union); 1987 Rome gold: pole vault (competed for the Soviet Union); 1991 Tokyo gold: pole vault (competed for the Soviet Union); 1993 Stuttgart gold: pole vault (competed for Ukraine); 1995 Göteborg gold: pole vault (competed for Ukraine); 1997 Athens gold: pole vault (competed for Ukraine) | |
| André Bucher | ATH | Olympics | 1996—2004 | 1–0–0 2001 Edmonton gold: 800 m | |
| Jack Buckner | ATH | Olympics | 1988—1992 | 0–0–1 1987 Rome bronze: 5000 m | |
| Oliver-Sven Buder | ATH | Olympics | 1996—2000 | 0–2–0 1997 Athens silver: shot put; 1999 Sevilla silver: shot put | |
| Tonja Buford-Bailey | ATH | Olympics | 1992—2000 | 0–1–0 1995 Göteborg silver: 400 m hurdles (competed as Tonja Buford) | |
| Imrich Bugár | ATH | Olympics / Opening Flagbearer / Closing Flagbearer | 1980—1992 | 1–0–0 1983 Helsinki gold: discus throw | |
| Seren Bundy-Davies | ATH | Olympics | 2016 | 0–0–1 2015 Beijing bronze: 4×400 m relay | |
| Wilfred Bungei | ATH | Olympics / Closing Flagbearer | 2004—2008 | 0–1–0 2001 Edmonton silver: 800 m | |
| Svetlana Buraga | ATH | Olympics | 1988 | 0–0–1 1993 Stuttgart bronze: heptathlon (competed for Belarus) | |
| Viktor Burayev | ATH | Olympics | 2004 | 0–0–1 2001 Edmonton bronze: 20 km walk | |
| Michelle Burgher | ATH | Olympics | 2000—2004 | 1–0–1 2001 Edmonton gold: 4×400 m relay (ran in heats only); 2003 Saint-Denis bronze: 4×400 m relay (ran in heats only) | |
| Gelete Burka | ATH | Olympics | 2008—2016 | 0–1–0 2015 Beijing silver: 10000 m | |
| Howard Burnett | ATH | Olympics | 1988 | 0–0–1 1991 Tokyo bronze: 4×400 m relay (ran in heats only) | |
| Marc Burns | ATH | Olympics / Opening Flagbearer | 2000—2012 | 0–3–0 2001 Edmonton silver: 4×100 m relay; 2005 Helsinki silver: 4×100 m relay; 2009 Berlin silver: 4×100 m relay | |
| Olga Burova-Chernyavskaya | ATH | Olympics | 1992—2004 | 1–0–1 1993 Stuttgart gold: discus throw (competed as Olga Chernyavskaya for Russia); 1995 Göteborg bronze: discus throw (competed as Olga Chernyavskaya for Russia) | |
| Leroy Burrell | ATH | Olympics | 1992 | 2–1–0 1991 Tokyo gold: 4×100 m relay, silver: 100 m, 1993 Stuttgart gold: 4×100 m relay | |
| Shelia Burrell | ATH | Olympics | 2000—2004 | 0–0–1 2001 Edmonton bronze: heptathlon | |
| Sabine Busch | ATH | Olympics | 1988 | 3–0–0 1983 Helsinki gold: 4×400 m relay; 1987 Rome gold: 400 m hurdles and 4×400 m relay | |
| Frank Busemann | ATH | Olympics | 1996—2000 | 0–0–1 1997 Athens bronze: decathlon | |
| Tamara Bykova | ATH | Olympics | 1980—1988 | 1–1–0 1983 Helsinki gold: high jump; 1987 Rome silver: high jump |