Host cities:
2023 Budapest (HUN) 19-27 August 2023
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes |
|---|---|---|---|---|---|
| Atlee Mahorn | ATH | Olympics | 1984—1992 | 0–0–2 1991 Tokyo bronze: 200 m; 1993 Stuttgart bronze: 4×100 m relay | |
| Yaroslava Mahuchikh | ATH | Olympics / YOG | 2018—2024 | 0–1–0 2019 Doha silver: high jump | |
| John Mair | ATH | Olympics | 1988 | 0–0–1 1987 Rome bronze: 4×100 m relay | |
| Tomasz Majewski | ATH | Olympics / Closing Flagbearer | 2004—2016 | 0–1–0 2009 Berlin silver: shot put | |
| Sergey Makarov | ATH | Olympics | 1996—2008 | 1–0–1 2003 Saint-Denis gold: javelin throw; 2005 Helsinki bronze: javelin throw | |
| Taoufik Makhloufi | ATH | Olympics / Closing Flagbearer | 2012—2016 | 0–1–0 2019 Doha silver: 1500 m | |
| Ngoni Makusha | ATH | Olympics | 2008 | 0–0–1 2011 Daegu bronze: long jump | |
| Piotr Małachowski | ATH | Olympics | 2008—2020 | 1–2–0 2009 Berlin silver: discus throw; 2013 Moskva silver: discus throw; 2015 Beijing gold: discus throw | |
| Galina Malchugina | ATH | Olympics | 1988—1996 | 1–1–1 1991 Tokyo silver: 4×100 m relay (competed for the Soviet Union); 1993 Stuttgart gold: 4×100 m relay (competed for Russia); 1995 Göteborg bronze: 200 m (competed for Russia) | |
| Christian Malcolm | ATH | Olympics | 2000—2012 | 0–0–2 2005 Helsinki bronze: 4×100 m relay; 2007 Osaka bronze: 4×100 m relay | |
| Arnaud Malherbe | ATH | Olympics | 1996—2004 | 0–0–1 1999 Sevilla bronze: 4×400 m relay | |
| Maicel Malone | ATH | Olympics | 1996 | 1–2–0 1993 Stuttgart gold: 4×400 m relay; 1997 Athens silver: 4×400 m relay; 1999 Sevilla silver: 4×400 m relay | |
| Bogusław Mamiński | ATH | Olympics | 1980—1988 | 0–1–0 1983 Helsinki silver: 3000 m steeplechase | |
| Elijah Manangoi | ATH | Olympics | 2016 | 1–1–0 2015 Beijing silver: 1500 m; 2017 London gold: 1500 m | |
| Josh Mance | ATH | Olympics | 2012 | 1–0–0 2013 Moskva gold: 4×400 m relay (ran in heats only) | |
| Mirela Maniani-Tzelili | ATH | Olympics / Opening Flagbearer | 1996—2004 | 2–1–0 1999 Sevilla gold: javelin throw (competed for Greece); 2001 Edmonton silver: javelin throw (competed for Greece); 2003 Saint-Denis gold: javelin throw (competed for Greece) | |
| Luvo Manyonga | ATH | Olympics | 2016 | 1–0–0 2017 London gold: long jump | |
| Marcin Marciniszyn | ATH | Olympics | 2004—2012 | 0–0–1 2007 Osaka bronze: 4×400 m relay | |
| Bruno Marie-Rose | ATH | Olympics | 1984—1992 | 0–1–0 1991 Tokyo silver: 4×100 m relay | |
| Hanna Mariën | ATH/BOB | Olympics / Opening Flagbearer | 2008—2014 | 0–0–1 2007 Osaka bronze: 4×100 m relay | |
| José Marín | ATH | Olympics | 1980—1992 | 0–1–1 1983 Helsinki silver: 50 km walk; 1987 Rome bronze: 20 km walk | |
| Tereza Marinova | ATH | Olympics | 2000 | 0–0–1 2001 Edmonton bronze: triple jump | |
| Viktor Markin | ATH | Olympics | 1980 | 1–0–0 1983 Helsinki gold: 4×400 m relay | |
| Dmitri Markov | ATH | Olympics | 1996—2004 | 1–1–0 1999 Sevilla silver: pole vault (competed for Australia); 2001 Edmonton gold: pole vault (competed for Australia) | |
| Hristo Markov | ATH | Olympics | 1988—1992 | 1–0–0 1987 Rome gold: triple jump | |
| Ilya Markov | ATH | Olympics | 1996—2008 | 1–1–0 1999 Sevilla gold: 20 km walk; 2001 Edmonton silver: 20 km walk | |
| Mike Marsh | ATH | Olympics / Non-starter | 1988—1996 | 1–0–0 1991 Tokyo gold: 4×100 m relay (ran in heats only) | |
| Pam Marshall | ATH | Olympics | 1988 | 1–0–0 1987 Rome gold: 4×100 m relay | |
| Eliseo Martín | ATH | Olympics | 2000—2008 | 0–0–1 2003 Saint-Denis bronze: 3000 m steeplechase | |
| Rodney Martin | ATH | Olympics | 2008 | 1–0–0 2007 Osaka gold: 4×100 m relay (ran in heats only) | |
| Brenda Martinez | ATH | Olympics | 2016 | 0–1–0 2013 Moskva silver: 800 m | |
| Guillermo Martínez | ATH | Olympics | 2012 | 0–1–1 2009 Berlin silver: javelin throw; 2011 Daegu bronze: javelin throw | |
| Lázaro Martínez | ATH | Olympics | 1992 | 0–0–1 1987 Rome bronze: 4×400 m relay | |
| Magdelín Martínez | ATH | Olympics | 2004—2008 | 0–0–1 2003 Saint-Denis bronze: triple jump | |
| Mayté Martínez | ATH | Olympics | 2000—2004 | 0–0–1 2007 Osaka bronze: 800 m | |
| Pascal Martinot-Lagarde | ATH | Olympics | 2016—2020 | 0–0–1 2019 Doha bronze: 110 m hurdles | |
| Anita Márton | ATH | Olympics | 2012—2020 | 0–1–0 2017 London silver: shot put | |
| Claudia Marx | ATH | Olympics | 2004 | 0–1–0 2001 Edmonton silver: 4×400 m relay | |
| Edith Masai | ATH | Olympics | 2004 | 0–0–1 2003 Saint-Denis bronze: 5000 m | |
| Linet Masai | ATH | Olympics | 2008 | 1–0–1 2009 Berlin gold: 10000 m; 2011 Daegu bronze: 10000 m | |
| Moses Masai | ATH | Olympics | 2008—2012 | 0–0–1 2009 Berlin bronze: 10000 m | |
| Valentí Massana | ATH | Olympics | 1992—2000 | 1–1–0 1993 Stuttgart gold: 20 km walk; 1995 Göteborg silver: 20 km walk | |
| Svetlana Masterkova | ATH | Olympics | 1996—2000 | 1–0–1 1999 Sevilla gold: 1500 m, bronze: 800 m | |
| Richard Mateelong | ATH | Olympics | 2008 | 0–1–1 2007 Osaka bronze: 3000 m steeplechase; 2009 Berlin silver: 3000 m steeplechase | |
| Rodica Mateescu | ATH | Olympics | 1996 | 0–1–0 1997 Athens silver: triple jump | |
| Samuel Matete | ATH | Olympics / Opening Flagbearer | 1988—2000 | 1–2–0 1991 Tokyo gold: 400 m hurdles; 1993 Stuttgart silver: 400 m hurdles; 1995 Göteborg silver: 400 m hurdles | |
| Martin Mathathi | ATH | Olympics | 2008 | 0–0–1 2007 Osaka bronze: 10000 m | |
| Michael Mathieu | ATH | Olympics | 2008—2016 | 0–1–0 2007 Osaka silver: 4×400 m relay | |
| Abednego Matilu | ATH | Olympics | 1992 | 0–1–0 1993 Stuttgart silver: 4×400 m relay | |
| Nikolay Matyukhin | ATH | Olympics | 1996—2000 | 0–1–0 1999 Sevilla silver: 50 km walk | |
| Fiona May | ATH | Olympics | 1988—2004 | 2–1–1 1995 Göteborg gold: long jump (competed for Italy); 1997 Athens bronze: long jump (competed for Italy); 1999 Sevilla silver: long jump (competed for Italy); 2001 Edmonton gold: long jump (competed for Italy) | |
| Kévin Mayer | ATH | Olympics | 2012—2020 | 1–0–0 2017 London gold: decathlon | |
| Françoise Mbango | ATH | Olympics | 2000—2008 | 0–2–0 2001 Edmonton silver: triple jump; 2003 Saint-Denis silver: triple jump | |
| Liz McColgan | ATH | Olympics | 1988—1996 | 1–0–0 1991 Tokyo gold: 10000 m | |
| Lee McConnell | ATH | Olympics | 2004—2012 | 0–0–4 2005 Helsinki bronze: 4×400 m relay; 2007 Osaka bronze: 4×400 m relay; 2009 Berlin bronze: 4×400 m relay, 2011 Daegu bronze: 4×400 m relay | |
| Francena McCorory | ATH | Olympics | 2012—2016 | 2–1–1 2011 Daegu gold: 4×400 m relay, bronze: 400 m; 2013 Moskva gold: 4×400 m relay; 2015 Beijing silver: 4×400 m relay | |
| Beverly McDonald | ATH | Olympics | 1996—2004 | 1–4–2 1991 Tokyo gold: 4×100 m relay; 1995 Göteborg silver: 4×100 m relay; 1997 Athens silver: 4×100 m relay; 1999 Sevilla silver: 200 m, bronze: 4×100 m relay; 2001 Edmonton bronze: 4×100 m relay; 2005 Helsinki silver: 4×100 m relay (ran in heats only) | |
| Michael McDonald | ATH | Olympics | 1996—2000 | 0–3–0 1995 Göteborg silver: 4×400 m relay; 1997 Athens silver: 4×400 m relay; 1999 Sevilla silver: 4×400 m relay | |
| Rusheen McDonald | ATH | Olympics / Non-starter | 2012—2020 | 0–1–0 2013 Moskva silver: 4×400 m relay | |
| Danny McFarlane | ATH | Olympics | 2000—2008 | 0–5–0 1995 Göteborg silver: 4×400 m relay; 1997 Athens silver: 4×400 m relay; 1999 Sevilla silver: 4×400 m relay; 2001 Edmonton silver: 4×400 m relay; 2003 Saint-Denis silver: 4×400 m relay | |
| Troy McIntosh | ATH | Olympics | 1996—2000 | 1–1–0 2001 Edmonton gold: 4×400 m relay; 2005 Helsinki silver: 4×400 m relay (ran in heats only) | |
| Antonio McKay | ATH | Olympics | 1984—1988 | 1–0–0 1987 Rome gold: 4×400 m relay | |
| Nathaniel McKinney | ATH | Olympics | 2004 | 0–2–1 2003 Saint-Denis bronze: 4×400 m relay; 2005 Helsinki silver: 4×400 m relay; 2007 Osaka silver: 4×400 m relay (ran in heats only) | |
| Sydney McLaughlin-Levrone | ATH | Olympics | 2016—2024 | 1–1–0 2019 Doha gold: 4×400 m relay, silver: 400 m hurdles | |
| Sally McLellan-Pearson | ATH | Olympics | 2008—2012 | 2–1–0 2011 Daegu gold: 100 m hurdles (competed as Sally Pearson); 2013 Moskva silver: 100 m hurdles (competed as Sally Pearson); 2017 London gold: 100 m hurdles (competed as Sally Pearson) | |
| Omar McLeod | ATH | Olympics | 2016 | 1–0–0 2017 London gold: 110 m hurdles | |
| Lee McNeill | ATH | Olympics | 1988 | 1–0–0 1987 Rome gold: 4×100 m relay | |
| Stephenie McPherson | ATH | Olympics / Closing Flagbearer | 2016—2024 | 1–0–2 2013 Moskva bronze: 400 m; 2015 Beijing gold: 4×400 m relay; 2019 Doha bronze: 4×400 m relay | |
| Tony McQuay | ATH | Olympics | 2012—2016 | 2–2–0 2013 Moskva gold: 4×400 m relay, silver: 400 m; 2015 Beijing gold: 4×400 m relay; 2017 London silver: 4×400 m relay (ran in heats only) | |
| Jenny Meadows | ATH | Olympics | 2008 | 0–0–2 2009 Berlin bronze: 800 m and 4×400 m relay (ran in heats only) | |
| Greg Meghoo | ATH | Olympics | 1984—1988 | 0–0–1 1987 Roma bronze: 4×100 metres relay (ran in heats only) | |
| Petra Meier-Felke | ATH | Olympics | 1988—1992 | 0–2–0 1987 Rome silver: javelin throw (competed as Petra Felke for East Germany); 1991 Tokyo silver: javelin throw (competed as Petra Meier for Germany) | |
| Paul Meier | ATH | Olympics | 1992 | 0–0–1 1993 Stuttgart bronze: decathlon | |
| Mahiedine Mekhissi-Benabbad | ATH | Olympics | 2008—2016 | 0–0–2 2011 Daegu bronze: 3000 m steeplechase; 2013 Moskva bronze: 3000 m steeplechase | |
| Deresse Mekonnen | ATH | Olympics | 2008 | 0–1–0 2009 Berlin silver: 1500 m | |
| Lukáš Melich | ATH | Olympics | 2008—2016 | 0–0–1 2013 Moskva bronze: hammer throw | |
| Karin Melis | ATH | Olympics | 2008—2016 | 0–0–1 2009 Berlin bronze: long jump | |
| Meselech Melkamu | ATH | Olympics | 2008 | 0–1–0 2009 Berlin silver: 10000 m | |
| Hanna Melnychenko-Kasianova | ATH | Olympics | 2008—2016 | 1–0–0 2013 Moskva gold: heptathlon | |
| Hagen Melzer | ATH | Olympics | 1988—1992 | 0–1–0 1987 Rome silver: 3000 m steeplechase (competed for East Germany) | |
| Osleidys Menéndez | ATH | Olympics / Closing Flagbearer | 2000—2008 | 2–0–0 2001 Edmonton gold: javelin throw; 2005 Helsinki gold: javelin throw | |
| Aleksandr Menkov | ATH | Olympics | 2012 | 1–0–0 2013 Moskva gold: long jump | |
| Pietro Mennea | ATH | Olympics / Opening Flagbearer | 1972—1988 | 0–1–1 1983 Helsinki silver: 4×100 m relay, bronze: 200 m | |
| Aselefech Mergia | ATH | Olympics | 2012 | 0–0–1 2009 Berlin bronze: marathon | |
| Aries Merritt | ATH | Olympics | 2012 | 0–0–1 2015 Beijing bronze: 110 m hurdles | |
| LaShawn Merritt | ATH | Olympics | 2008—2016 | 8–3–0 2005 Helsinki gold: 4×400 m relay (ran in heats only); 2007 Osaka gold: 4×400 m relay, silver: 400 m; 2009 Berlin gold: 400 m and 4×400 m relay; 2011 Daegu gold: 4×400 m relay, silver: 400 m; 2013 Moskva gold: 400 m and 4×400 m relay; 2015 Beijing gold: 4×400 m relay, silver: 400 m | |
| Romain Mesnil | ATH | Olympics | 2000—2012 | 0–2–0 2007 Osaka silver: pole vault; 2009 Berlin silver: pole vault | |
| Ulrike Meyfarth | ATH | Olympics / Closing Flagbearer | 1972—1984 | 0–1–0 1983 Helsinki silver: high jump | |
| Assefa Mezgebu | ATH | Olympics | 1996—2000 | 0–1–1 1999 Sevilla bronze: 10000 m; 2001 Edmonton silver: 10000 m | |
| Detlef Michel | ATH | Olympics | 1980—1988 | 1–0–0 1983 Helsinki gold: javelin throw | |
| Kim Mickle | ATH | Olympics | 2012—2016 | 0–1–0 2013 Moskva silver: javelin throw | |
| Malaika Mihambo | ATH | Olympics | 2016—2024 | 1–0–0 2019 Doha gold: long jump | |
| Larisa Mikhalchenko | ATH | Olympics | 1988 | 0–0–1 1991 Tokyo bronze: discus throw | |
| Andrei Mikhnievich | ATH | Olympics | 2000—2012 | 1–0–0 2003 Saint-Denis gold: shot put | |
| Philip Milanov | ATH | Olympics | 2016—2024 | 0–1–0 2015 Beijing silver: discus throw | |
| Joel Milburn | ATH | Olympics | 2008 | 0–0–1 2009 Berlin bronze: 4×400 m relay (ran in heats only) | |
| Jearl Miles-Clark | ATH | Olympics | 1992—2004 | 4–3–2 1991 Tokyo silver: 4×400 m relay (competed as Jearl Miles); 1993 Stuttgart gold: 400 m and 4×400 m relay (competed as Jearl Miles); 1995 Göteborg gold: 4×400 m relay, bronze: 400 m (competed as Jearl Miles); 1997 Athens silver: 4×400 m relay, bronze: 400 m; 1999 Sevilla silver: 4×400 m relay; 2003 Saint-Denis gold: 4×400 m relay | |
| Shaunae Miller-Uibo | ATH | Olympics / Opening Flagbearer | 2012—2024 | 0–2–1 2015 Beijing silver: 400 m; 2017 London bronze: 200 m (competed as Shaunae Miller-Uibo); 2019 Doha silver: 400 m | |
| Inger Miller | ATH | Olympics | 1996 | 2–2–0 1997 Athens gold: 4×100 m relay; 1999 Sevilla gold: 200 m, silver: 100 m; 2003 Saint-Denis silver: 4×100 m relay | |
| Derek Mills | ATH | Olympics | 1996 | 2–0–0 1993 Stuttgart gold: 4×400 m relay (ran in heats only); 1995 Göteborg gold: 4×400 m relay | |
| Min Chunfeng | ATH | Olympics | 1992 | 0–0–1 1993 Stuttgart bronze: discus throw | |
| Anastasiya Mironchyk-Ivanova | ATH | Olympics | 2012—2020 | 0–0–1 2011 Daegu bronze: long jump | |
| Lisa Misipeka | ATH | Olympics / Opening Flagbearer | 1996—2004 | 0–0–1 1999 Sevilla bronze: hammer throw | |
| Yauhen Misiulia | ATH | Olympics | 1988—2004 | 0–0–2 1991 Tokyo bronze: 20 km walk (competed for the Soviet Union); 1995 Göteborg bronze: 20 km walk (competed for Belarus) | |
| Nethaneel Mitchell-Blake | ATH | Olympics | 2016—2024 | 1–1–0 2017 London gold: 4×100 m relay; 2019 Doha silver: 4×100 m relay | |
| Dennis Mitchell | ATH | Olympics | 1988—1996 | 3–0–2 1987 Rome gold: 4×100 m relay (ran in heats and semi-finals only); 1991 Tokyo gold: 4×100 m relay, bronze: 100 m; 1993 Stuttgart gold: 4×100 m relay, bronze: 100 m | |
| Nikole Mitchell | ATH | Olympics | 1996 | 0–0–1 1993 Stuttgart bronze: 4×100 m relay | |
| Svetla Mitkova | ATH | Olympics | 1988—1996 | 0–0–1 1995 Göteborg bronze: shot put | |
| Vincenzo Modica | ATH | Olympics | 2000 | 0–1–0 1999 Sevilla silver: marathon | |
| Ofentse Mogawane | ATH | Olympics | 2008—2012 | 0–1–0 2011 Daegu silver: 4×400 m relay | |
| Hendrick Mokganyetsi | ATH | Olympics | 1996—2004 | 0–0–1 1999 Sevilla bronze: 4×400 m relay | |
| Khotso Mokoena | ATH | Olympics | 2004—2016 | 0–1–0 2009 Berlin silver: long jump | |
| Juan Manuel Molina | ATH | Olympics | 2004—2008 | 0–0–1 2005 Helsinki bronze: 20 km walk | |
| Katharina Molitor | ATH | Olympics | 2008—2012 | 1–0–0 2015 Beijing gold: javelin throw | |
| Michael Möllenbeck | ATH | Olympics | 1996—2004 | 0–0–2 2001 Edmonton bronze: discus throw; 2005 Helsinki bronze: discus throw | |
| Silke Möller | ATH | Olympics | 1988 | 3–1–0 1983 Helsinki gold: 4×100 m relay (competed as Silke Gladisch); 1987 Rome gold: 100 m and 200 m, silver: 4×100 m relay (competed as Silke Gladisch) | |
| Anne Möllinger-Cibis | ATH | Olympics | 2008—2012 | 0–0–1 2009 Berlin bronze: 4×100 m relay (competed as Anne Möllinger) | |
| Avard Moncur | ATH | Olympics | 2000—2008 | 2–2–1 2001 Edmonton gold: 400 m and 4×100 m relay; 2003 Saint-Denis bronze: 4×400 m relay; 2005 Helsinki silver: 4×400 m relay; 2007 Osaka silver: 4×400 m relay | |
| Steve Moneghetti | ATH | Olympics | 1988—2000 | 0–0–1 1997 Athens bronze: marathon | |
| Niurka Montalvo | ATH | Olympics | 1996—2004 | 1–1–1 1995 Göteborg silver: long jump (competed for Cuba); 1999 Sevilla gold: long jump (competed for Spain); 2001 Edmonton bronze: long jump (competed for Spain) | |
| Manuèla Montebrun | ATH | Olympics | 2000—2008 | 0–0–2 2003 Saint-Denis bronze: hammer throw; 2005 Helsinki bronze: hammer throw | |
| Tim Montgomery | ATH | Olympics | 1996—2000 | 1–0–1 1997 Athens bronze: 100 m; 1999 Sevilla gold: 4×100 m relay | |
| Amantle Montsho | ATH | Olympics / Opening Flagbearer / Closing Flagbearer | 2004—2020 | 1–1–0 2011 Daegu gold: 400 m; 2013 Moskva silver: 400 m | |
| Jude Monye | ATH | Olympics | 1996—2000 | 0–0–1 1995 Göteborg bronze: 4×400 m relay | |
| Noureddine Morceli | ATH | Olympics | 1992—2000 | 3–0–0 1991 Tokyo gold: 1500 m; 1993 Stuttgart gold: 1500 m; 1995 Göteborg gold: 1500 m | |
| Yipsi Moreno | ATH | Olympics | 2000—2012 | 3–1–0 2001 Edmonton gold: hammer throw; 2003 Saint-Denis gold: hammer throw; 2005 Helsinki gold: hammer throw; 2007 Osaka silver: hammer throw | |
| Fabrizio Mori | ATH | Olympics | 1992—2000 | 1–1–0 1999 Sevilla gold: 400 m hurdles; 2001 Edmonton silver: 400 m hurdles | |
| Max Morinière | ATH | Olympics | 1988—1992 | 0–1–0 1991 Tokyo silver: 4×100 m relay | |
| Devon Morris | ATH | Olympics | 1984—1992 | 0–0–1 1991 Tokyo bronze: 4×400 m relay | |
| Sandi Morris | ATH | Olympics | 2016—2020 | 0–2–0 2017 London silver: pole vault; 2019 Doha silver: pole vault | |
| Edwin Moses | ATH | Olympics / Athlete Oath Taker / Olympic Flagbearer | 1976—1996 | 2–0–0 1983 Helsinki gold: 400 m hurdles; 1987 Rome gold: 400 m hurdles | |
| Svetlana Moskalets | ATH | Olympics | 1996 | 0–1–0 1995 Göteborg silver: heptathlon | |
| Moses Mosop | ATH | Olympics | 2004 | 0–0–1 2005 Helsinki bronze: 10000 m | |
| Rosa Mota | ATH | Olympics / Closing Flagbearer | 1984—1988 | 1–0–0 1987 Rome gold: marathon | |
| Cydonie Mothersill | ATH | Olympics / Non-starter / Opening Flagbearer | 1996—2012 | 0–0–1 2001 Edmonton bronze: 200 m | |
| Craig Mottram | ATH | Olympics | 2000—2012 | 0–0–1 2005 Helsinki bronze: 5000 m | |
| Mohammed Mourhit | ATH | Olympics | 2000 | 0–0–1 1999 Sevilla bronze: 5000 m | |
| Víctor Moya | ATH | Olympics | 2012 | 0–1–0 2005 Helsinki silver: high jump | |
| Dalilah Muhammad | ATH | Olympics | 2016—2020 | 2–2–0 2013 Moskva silver: 400 m hurdles; 2017 London silver: 400 m hurdles; 2019 Doha gold: 400 m hurdles and 4×400 m relay | |
| Mbulaeni Mulaudzi | ATH | Olympics / Opening Flagbearer | 2004—2008 | 1–0–1 2003 Saint-Denis bronze: 800 m; 2009 Berlin gold: 800 m | |
| Nadine Müller | ATH | Olympics | 2012—2016 | 0–1–1 2011 Daegu silver: discus throw; 2015 Beijing bronze: discus throw | |
| Petra Müller | ATH | Olympics | 1988 | 1–1–0 1987 Rome gold: 4×400 m relay, silver: 400 m | |
| Tim Munnings | ATH | Olympics | 1996—2000 | 1–0–0 2001 Edmonton gold: 4×400 m relay | |
| Yukifumi Murakami | ATH | Olympics | 2004—2012 | 0–0–1 2009 Berlin bronze: javelin throw | |
| Galina Murašova | ATH | Olympics | 1980—1988 | 0–1–0 1983 Helsinki silver: discus throw | |
| Vladimir Muravyov | ATH | Olympics | 1980—1988 | 0–1–1 1983 Helsinki bronze: 4×100 m relay; 1987 Rome silver: 4×100 m relay | |
| Fabiana Mürer | ATH | Olympics | 2008—2016 | 1–1–0 2011 Daegu gold: pole vault; 2015 Beijing silver: pole vault | |
| Koji Murofushi | ATH | Olympics | 2000—2012 | 1–1–1 2001 Edmonton silver: hammer throw; 2003 Saint-Denis bronze: hammer throw; 2011 Daegu gold: hammer throw | |
| Irina Mushailova | ATH | Olympics | 1992 | 0–0–1 1995 Göteborg bronze: long jump (competed for Russia) | |
| Emmanuel Kipchirchir Mutai | ATH | Olympics | 2012 | 0–1–0 2009 Berlin silver: marathon | |
| Munyo Solomon Mutai | ATH | Olympics | 2016 | 0–0–1 2015 Beijing bronze: marathon | |
| Maria Mutola | ATH | Olympics / Olympic Flagbearer / Opening Flagbearer | 1988—2008 | 3–1–1 1993 Stuttgart gold: 800 m; 1997 Athens bronze: 800 m; 1999 Sevilla silver: 800 m; 2001 Edmonton gold: 800 m; 2003 Saint-Denis gold: 800 m | |
| Sandy Myers | ATH | Olympics | 1988—1996 | 0–0–1 1991 Tokyo bronze: 400 m | |
| Larry Myricks | ATH | Olympics | 1976—1988 | 0–0–2 1987 Rome bronze: long jump; 1991 Tokyo bronze: long jump | |
| Halimah Nakaayi | ATH | Olympics / YOG / Opening Flagbearer / Closing Flagbearer | 2010—2024 | 1–0–0 2019 Doha gold: 800 m | |
| Ludmila Narozhilenko-Engquist | ATH | Olympics | 1988—1996 | 2–0–1 1991 Tokyo gold: 100 m hurdles (competed as Ludmila Narozhilenko for the Soviet Union); 1997 Athens gold: 100 m hurdles (competed as Ludmila Engquist for Sweden); 1999 Sevilla bronze: 100 m hurdles (competed as Ludmila Engquist for Sweden) | |
| Liliana Năstase | ATH | Olympics | 1992—1996 | 0–1–0 1991 Tokyo silver: heptathlon | |
| Lee Naylor | ATH | Olympics | 1996—2000 | 0–0–1 1995 Göteborg bronze: 4×400 m relay | |
| Dilshod Nazarov | ATH | Olympics / Opening Flagbearer | 2004—2016 | 0–1–0 2015 Beijing silver: hammer throw | |
| Nataliya Nazarova | ATH | Olympics | 2000—2012 | 1–1–0 1999 Sevilla gold: 4×400 m relay; 2003 Saint-Denis silver: 4×400 m relay | |
| Olga Nazarova | ATH | Olympics | 1988—1992 | 1–1–0 1987 Rome silver: 4×400 m relay (competed for the Soviet Union); 1991 Tokyo gold: 4×400 m relay (competed for the Soviet Union) | |
| Catherine Ndereba | ATH | Olympics | 2004—2008 | 2–1–0 2003 Saint-Denis gold: marathon; 2005 Helsinki silver: marathon; 2007 Osaka gold: marathon | |
| Caleb Ndiku | ATH | Olympics | 2016 | 0–1–0 2015 Beijing silver: 5000 m | |
| Kathrin Neimke | ATH | Olympics | 1988—1996 | 0–1–1 1987 Rome silver: shot put (competed for East Germany); 1993 Stuttgart bronze: shot put (competed for Germany) | |
| Daryll Neita | ATH | Olympics | 2016—2024 | 0–2–0 2017 London silver: 4×100 m relay; 2019 Doha silver: 4×100 m relay | |
| Bryshon Nellum | ATH | Olympics / Closing Flagbearer | 2012 | 1–1–0 2015 Beijing gold: 4×400 m relay; 2017 London silver: 4×400 m relay (ran in heats only) | |
| Adam Nelson | ATH | Olympics | 2000—2008 | 1–3–0 2001 Edmonton silver: shot put; 2003 Saint-Denis silver: shot put; 2005 Helsinki gold: shot put; 2007 Osaka silver: shot put | |
| Ashleigh Nelson | ATH/BOB | Olympics / Non-starter | 2008—2026 | 0–1–1 2013 Moskva bronze: 4×100 m relay; 2019 Doha silver: 4×100 m relay | |
| Zsolt Németh | ATH | Olympics | 1996—2000 | 0–1–0 1999 Sevilla silver: hammer throw | |
| Steffi Nerius | ATH | Olympics | 1996—2008 | 1–0–3 2003 Saint-Denis bronze: javelin throw; 2005 Helsinki bronze: javelin throw; 2007 Osaka bronze: javelin throw; 2009 Berlin gold: javelin throw | |
| Yuliya Nestsiarenka | ATH | Olympics | 2004—2008 | 0–0–1 2005 Helsinki bronze: 4×100 m relay | |
| Dagmar Neubauer | ATH | Olympics / Non-starter | 1980—1988 | 2–0–0 1983 Helsinki gold: 4×400 m relay (competed as Dagmar Rübsam); 1987 Rome gold: 4×400 m relay | |
| Ramona Neubert | ATH | Olympics | 1980 | 1–0–0 1983 Helsinki gold: heptathlon | |
| Alena Neumiarzhitskaya-Daniliok | ATH | Olympics | 2004—2012 | 0–0–1 2005 Helsinki bronze: 4×100 m relay (competed as Alena Neumiarzhitskaya) | |
| Noah Ngeny | ATH | Olympics | 2000 | 0–1–0 1999 Sevilla silver: 1500 m | |
| Wayde van Niekerk | ATH | Olympics / Opening Flagbearer | 2016—2024 | 2–1–0 2015 Beijing gold: 400 m; 2017 London gold: 400 m, silver: 200 m | |
| Yelena Nikolayeva | ATH | Olympics | 1992—2004 | 1–0–1 1995 Göteborg bronze: 10 km walk (competed for Russia); 2003 Saint-Denis gold: 20 km walk (competed for Russia) | |
| Sunder Nix | ATH | Olympics | 1984 | 0–0–1 1983 Helsinki bronze: 400 m | |
| Vénuste Niyongabo | ATH | Olympics | 1996—2000 | 0–0–1 1995 Göteborg bronze: 1500 m | |
| Francine Niyonsaba | ATH | Olympics | 2012—2020 | 0–1–0 2017 London silver: 800 m | |
| Denis Nizhegorodov | ATH | Olympics | 2004—2008 | 1–0–0 2011 Daegu gold: 50 km walk | |
| Mercy Njoroge | ATH | Olympics | 2012 | 0–0–1 2011 Daegu bronze: 3000 m steeplechase | |
| Mizuki Noguchi | ATH | Olympics | 2004 | 0–1–0 2003 Saint-Denis silver: marathon | |
| Erki Nool | ATH | Olympics / Opening Flagbearer | 1992—2004 | 0–1–0 2001 Edmonton silver: decathlon | |
| Yuliya Nosova-Pechonkina | ATH | Olympics | 2000—2004 | 2–3–2 2001 Edmonton silver: 400 m hurdles, bronze: 4×400 m relay (competed as Yuliya Nosova); 2003 Saint-Denis silver: 4×400 m relay, bronze: 400 m hurdles (competed as Yuliya Pechonkina); 2005 Helsinki gold: 400 m hurdles and 4×400 m relay (competed as Yuliya Pechonkina); 2007 Osaka silver: 400 m hurdles (competed as Yuliya Pechonkina) | |
| Wojciech Nowicki | ATH | Olympics | 2016—2024 | 0–0–3 2015 Beijing bronze: hammer throw; 2017 London bronze: hammer throw; 2019 Doha bronze: hammer throw | |
| Liliya Nurutdinova | ATH | Olympics | 1992 | 1–0–0 1991 Tokyo gold: 800 m (competed for the Soviet Union) | |
| Tom Nyariki | ATH | Olympics | 1996 | 0–0–1 1997 Athens bronze: 5000 m | |
| Trond Nymark | ATH | Olympics | 2004—2012 | 1–0–0 2009 Berlin gold: 50 km walk | |
| Dan O'Brien | ATH | Olympics | 1996 | 3–0–0 1991 Tokyo gold: decathlon; 1993 Stuttgart gold: decathlon; 1995 Göteborg gold: decathlon | |
| Patrick O'Connor | ATH | Olympics | 1992 | 0–0–1 1991 Tokyo bronze: 4×400 m relay | |
| Gillian O'Sullivan | ATH | Olympics | 2000 | 0–1–0 2003 Saint-Denis silver: 20 km walk | |
| Sonia O'Sullivan | ATH | Olympics / Opening Flagbearer | 1992—2004 | 1–1–0 1993 Stuttgart silver: 1500 m; 1995 Göteborg gold: 5000 m | |
| Christina Obergföll | ATH | Olympics | 2004—2016 | 1–2–1 2005 Helsinki silver: javelin throw; 2007 Osaka silver: javelin throw; 2011 Daegu bronze: javelin throw; 2013 Moskva gold: javelin throw | |
| Francis Obikwelu | ATH | Olympics | 1996—2008 | 0–1–1 1997 Athens silver: 4×100 m relay (competed for Nigeria); 1999 Sevilla bronze: 200 m (competed for Nigeria) | |
| Hellen Obiri | ATH | Olympics | 2012—2024 | 2–0–1 2013 Moskva bronze: 1500 m; 2017 London gold: 5000 m; 2019 Doha gold: 5000 m | |
| Kennedy Ochieng | ATH | Olympics / Opening Flagbearer | 1996—2000 | 0–1–0 1993 Stuttgart silver: 4×400 m relay | |
| Marlies Oelsner-Göhr | ATH | Olympics | 1976—1988 | 2–1–0 1983 Helsinki gold: 100 m and 4×100 m relay (competed as Marlies Göhr); 1987 Rome silver: 4×100 m relay (competed as Marlies Göhr) | |
| Jennifer Oeser | ATH | Olympics | 2008—2016 | 0–2–0 2009 Berlin silver: heptathlon; 2011 Daegu silver: heptathlon | |
| Ben Offereins | ATH | Olympics | 2012 | 0–0–1 2009 Berlin bronze: 4×400 m relay |