| Name | Nation | Sport | Games | Notes |
|---|
| Ma Chen-shan | Chinese Taipei | Shooting | 1964 Summer | |
| Ma Chengqing | China | Basketball | 1996 Summer | |
| Ma Chih-hung | Chinese Taipei | Luge | 2006 Winter, 2010 Winter | |
| Ma Chun-ping | Athletics | 1992 Summer | |
| Ma Duanbin | China | Judo | 2016 Summer | |
| Ma Fang | Volleyball | 1992 Summer | |
| Ma Fuliang | Canoe sprint | 1988 Summer | |
| Ma Ge | Shooting | 1996 Summer | |
| Ma Huanhuan | Water polo | 2008 Summer, 2012 Summer, 2016 Summer | |
| Ma Jian | Basketball | 1992 Summer | |
| Ma Jianfei | Fencing | 2012 Summer, 2016 Summer | |
| Ma Jianping | Weightlifting | 1984 Summer | |
| Ma Jin | Badminton | 2012 Summer, 2016 Summer | |
| Ma Jingyi | Curling | 2018 Winter | |
| Ma Jinping | Ice hockey | 1998 Winter | |
| Ma Keqin | Tennis | 1988 Summer | |
| Ma Kum-ja | South Korea | Volleyball | 1976 Summer | |
| Kwan Ching Ma [ Wikidata ] | Hong Kong | Sailing | 2024 Summer | |
| Ma Lin | China | Football | 1988 Summer | |
| Ma Lin | Table tennis | 2004 Summer, 2008 Summer | |
| Ma Linqin | Rowing | 1992 Summer | |
| Ma Liyun | Cycling BMX racing | 2008 Summer | |
| Ma Long | Table tennis | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Ma Menglu | Track cycling | 2016 Summer | |
| Ma Nak-gil | South Korea | Volleyball | 1992 Summer | |
| Ma Ning | China | Athletics | 2004 Summer | |
| Ma Qing | Canoe sprint | 2016 Summer, 2020 Summer | |
| Ma Rui | Ice hockey | 2010 Winter | |
| Ma Sanyi | Wrestling | 2008 Summer | |
| Ma Se-geon | South Korea | Fencing | 2020 Summer | |
| Ma Shaorong | China | Archery | 1988 Summer | |
| Ma Wei | Field hockey | 2012 Summer | |
| Ma Wenge | Table tennis | 1992 Summer | |
| Ma Wenguang | Weightlifting | 1984 Summer | |
| Ma Wenzhu | 1988 Summer | |
| Ma Xiangjun | Archery | 1988 Summer, 1992 Summer | |
| Ma Xiaodan | Rugby sevens | 2024 Summer | |
| Ma Xiaojun | Ice hockey | 1998 Winter, 2002 Winter | |
| Ma Xiaoxu | Football | 2016 Summer | |
| Ma Xiuyue | Curling | 2022 Winter | |
| Ma Xuejun | Athletics | 2008 Summer, 2012 Summer | |
| Ma Yanhong | Artistic gymnastics | 1984 Summer | |
| Ma Yanping | Cycling mountain bike | 2000 Summer, 2004 Summer | |
| Ma Yibo | Field hockey | 2004 Summer, 2008 Summer, 2012 Summer | |
| Ma Ying | Artistic gymnastics | 1988 Summer | |
| Ma Ying | Softball | 1996 Summer | |
| Ma Yingnan | Judo | 2016 Summer | |
| Ma Yongbin | Speed skating | 2002 Winter | |
| Ma Yongfeng | Athletics | 1988 Summer | |
| Ma Yunfeng | Short track speed skating | 2010 Winter | |
| Ma Yunwen | Volleyball | 2008 Summer, 2012 Summer | |
| Ma Zengyu | Basketball | 2012 Summer | |
| Ma Zhenxia | Athletics | 2024 Summer | |
| Ma Zhenzhao | Judo | 2020 Summer, 2024 Summer | |
| Ma Zhi | Fencing | 1988 Summer | |
| Ma Zongqing | Basketball | 1996 Summer | |
| Micah Maʻa | United States | Volleyball | 2024 Summer | |
| Abdelhak Maach | Morocco | Judo | 1988 Summer | |
| Mohamed Maach | 1984 Summer | |
| Bouchaib El-Maachi | Athletics | 1960 Summer, 1964 Summer | |
| Lamjed Maafi | Tunisia | Wrestling | 2020 Summer | |
| Natalie Maag [ Wikidata ] | Switzerland | Luge | 2022 Winter | |
| Peter Maag | Handball | 1980 Summer | |
| Jenny Maakal | South Africa | Swimming | 1932 Summer | |
| Nabil Maâloul | Tunisia | Football | 1988 Summer | |
| Adel El-Maamour | Egypt | 1984 Summer | |
| Sujeet Maan | India | Wrestling | 2004 Summer | |
| Tulika Maan | Judo | 2024 Summer | |
| Kaarlo Maaninka | Finland | Athletics | 1980 Summer | |
| Khalil El-Maaoui | Tunisia | Weightlifting | 2008 Summer, 2012 Summer | |
| Taoufik Maaouia | 1984 Summer | |
| Stephen Maar | Canada | Volleyball | 2020 Summer, 2024 Summer | |
| Steve Maaranen | United States | Track cycling | 1968 Summer | |
| Amer Maaraoui | Syria | Athletics | 1980 Summer | |
| Mohamed Jilani Maaref | Tunisia | Handball | 2016 Summer | |
| Johannes van Maaren | Netherlands | Wrestling | 1920 Summer, 1924 Summer, 1928 Summer | |
| Hachim Maaroufou | Comoros | Athletics | 2024 Summer | |
| Gerard Maarse | Netherlands | Speed skating | 1952 Winter, 1956 Winter | |
| Meghan Maartens | South Africa | Water polo | 2020 Summer | |
| Erling Maartmann | Norway | Football | 1912 Summer | |
| Harald Maartmann | Cross country skiing | 1952 Winter | |
| Rolf Maartmann | Football | 1912 Summer | |
| Annelies Maas | Netherlands | Swimming | 1976 Summer, 1980 Summer | |
| Bob Maas | Sailing | 1932 Summer, 1936 Summer, 1948 Summer, 1952 Summer | |
| Cheryl Maas | Snowboarding | 2006 Winter, 2014 Winter, 2018 Winter | |
| Günther Maas | West Germany | Wrestling | 1972 Summer | |
| Jan Maas | Netherlands | Sailing | 1932 Summer | |
| Jan Maas | Road cycling, Track cycling | 1924 Summer, 1928 Summer | |
| Koos Maasdijk | Rowing | 1992 Summer, 1996 Summer | |
| Kamiel Maase | Athletics | 2000 Summer, 2004 Summer, 2008 Summer | |
| Lukas Maase | Germany | Volleyball | 2024 Summer | |
| Bjørn Maaseide | Norway | Beach volleyball | 1996 Summer, 2000 Summer, 2004 Summer | |
| Kathrine Maaseide | 2004 Summer, 2008 Summer | |
| Alfred Maasik | Estonia | Athletics | 1932 Summer | |
| Alges Maasikmets | Cycling mountain bike | 1996 Summer | |
| Ulla Maaskola | Finland | Cross country skiing | 1980 Winter | |
| Paul Maasland | Netherlands | Rowing | 1924 Summer, 1928 Summer | |
| Martti Maatela | Finland | Nordic combined | 1960 Winter | |
| Kenneth Maaten | Canada | Modern pentathlon | 1972 Summer | |
| Carlos van der Maath | Argentina | Swimming | 1964 Summer, 1968 Summer | |
| Eilert Määttä | Sweden | Ice hockey | 1964 Winter | |
| Jarkko Määttä | Finland | Ski jumping | 2014 Winter, 2018 Winter | |
| Olli Määttä | Ice hockey | 2014 Winter | |
| Pirkko Määttä | Cross country skiing | 1984 Winter, 1988 Winter, 1992 Winter, 1994 Winter | |
| Eveliina Määttänen | Athletics | 2024 Summer | |
| Yehuda Maayan | Israel | Sailing | 1976 Summer | |
| Waleed Bakhit Maayof | Qatar | Football | 1992 Summer | |
| Majida Maayouf | Spain | Athletics | 2024 Summer | |
| Abdelhakim Maazouz | Algeria | 2004 Summer | |
| Driss Maazouzi | Morocco, France | 1996 Summer, 2000 Summer | |
| Barrie Mabbott | New Zealand | Rowing | 1984 Summer | |
| Alexandre Mabboux | France | Ski jumping | 2010 Winter | |
| Sofia Mabergs | Sweden | Curling | 2018 Winter, 2022 Winter | |
| Mwadi Mabika | Democratic Republic of the Congo | Basketball | 1996 Summer | |
| Taylor Mabika | Gabon | Boxing | 2004 Summer | |
| Yolande Mabika | Refugee Olympic Team | Judo | 2016 Summer | |
| Bernard Mabikana | Republic of the Congo | Athletics | 1980 Summer | |
| France Mabiletsa | Botswana | Boxing | 1992 Summer | |
| Sibusiso Mabiliso | South Africa | Football | 2020 Summer | |
| Florent Mabille | Belgium | Athletics | 2024 Summer | |
| Yvonne Mabille | France | 1936 Summer | |
| Arthur Mabillon | Archery | 1920 Summer | |
| Ali Mabkhout | United Arab Emirates | Football | 2012 Summer | |
| Ashraf Mabrouk Awaad | Egypt | Handball | 1992 Summer, 1996 Summer, 2000 Summer | |
| Hazem Mabrouk Awaad | 2000 Summer | |
| Abdullah Al-Mabrouk | Saudi Arabia | Athletics | 1972 Summer | |
| Belal Mabrouk | Egypt | Handball | 2008 Summer | |
| Hassan Mabrouk | Egypt, Qatar | 2008 Summer, 2016 Summer | |
| Hussein Mabrouk | Egypt | 2008 Summer | |
| Marzouk Mabrouk | Libya | Athletics | 1980 Summer | |
| Mourad El Mabrouk | Tunisia | Basketball | 2012 Summer | |
| Patrick El Mabrouk | France | Athletics | 1952 Summer | |
| Ryo Mabuchi | Japan | Diving | 1956 Summer, 1960 Summer | |
| Satoko Mabuchi | Softball | 2008 Summer | |
| Yoshino Mabuchi | Diving | 1984 Summer | |
| Issack Mabushi | Tanzania | Boxing | 1980 Summer | |
| Dumsane Mabuza | Eswatini | 1988 Summer | |
| Richard Mabuza | Athletics | 1972 Summer | |
| Ernest Mabwa | Uganda | Boxing | 1964 Summer | |
| Alexis Mac Allister | Argentina | Football | 2020 Summer | |
| Maggie Mac Neil | Canada | Swimming | 2020 Summer, 2024 Summer | |
| Miloš Máca | Czechoslovakia | Athletics | 1952 Summer | |
| Jules Macaire [ Wikidata ] | France | Polo | 1924 Summer | |
| Maurice Macaire | Football | 1900 Summer | |
| Segundo Macalalad | Philippines | Boxing | 1960 Summer | |
| Cathy MacAleavey | Ireland | Sailing | 1988 Summer | |
| Marko Macan | Croatia | Water polo | 2016 Summer, 2020 Summer | |
| Arturo Macapagal | Philippines | Shooting | 1972 Summer, 1976 Summer | |
| Michael Macaque | Mauritius | Boxing | 2000 Summer | |
| Aurel Macarencu | Romania | Canoe sprint | 1988 Summer | |
| Catarina Macario | United States | Football | 2020 Summer | |
| Renato Macario | Italy | Rowing | 1948 Summer | |
| Veronika Macarol | Slovenia | Sailing | 2016 Summer, 2020 Summer | |
| Scott Macartney | United States | Alpine skiing | 2002 Winter, 2006 Winter | |
| Klara MacAskill | Canada | Canoe sprint | 1992 Summer, 1996 Summer | |
| Victoria Macaulay | Nigeria | Basketball | 2020 Summer | |
| Victor MacAuley | Canada | Athletics | 1924 Summer | |
| Sorin Macavei | Romania | Volleyball | 1980 Summer | |
| Ignacio Macaya | Spain | Field hockey | 1960 Summer, 1964 Summer | |
| Fred Macbeth | Canada | Athletics | 1928 Summer | |
| John MacBrien | Sailing | 1964 Summer | |
| Jack MacBryan | Great Britain | Field hockey | 1920 Summer | |
| Brian MacCabe | Athletics | 1936 Summer | |
| Mino Maccari | Italy | Art competitions | 1948 Summer | |
| Patrick Maccari | France | Canoe slalom | 1972 Summer | |
| Sofía Maccari | Argentina | Field hockey | 2012 Summer, 2020 Summer | |
| Augusto Maccario | Italy | Athletics | 1920 Summer | |
| Fairchilds Maccarthy | United States | Skeleton | 1948 Winter | |
| Daniela Maccelli | Italy | Artistic gymnastics | 1968 Summer | |
| Filippo Macchi | Fencing | 2024 Summer | |
| Mario Macchiati | Artistic gymnastics | 2024 Summer | |
| Francesco Macchietto | Ice hockey | 1956 Winter, 1964 Winter | |
| Carlo Macchini | Artistic gymnastics | 2024 Summer | |
| Licia Macchini | 1948 Summer, 1952 Summer | |
| Tomás MacCormik | Argentina | Field hockey | 2000 Summer, 2004 Summer | |
| Todd MacCulloch | Canada | Basketball | 2000 Summer | |
| Érika MacDavid | Brazil | Artistic swimming | 1988 Summer | |
| Andy Macdonald | Great Britain | Skateboarding | 2024 Summer | |
| Archie MacDonald | Wrestling | 1920 Summer, 1924 Summer | |
| Athol MacDonald | Australia | Rowing | 1976 Summer | |
| Bertram Macdonald | Great Britain | Athletics | 1924 Summer | |
| Bruce MacDonald | United States | 1956 Summer, 1960 Summer, 1964 Summer | |
| Bruce MacDonald | Canada | Sailing | 1988 Summer | |
| Byron MacDonald | Swimming | 1972 Summer | |
| Daniel MacDonald | Wrestling | 1928 Summer, 1932 Summer | |
| Daryl MacDonald | Rowing | 1964 Summer, 1968 Summer | |
| Duncan MacDonald | United States | Athletics | 1976 Summer | |
| Eric MacDonald | Great Britain | Diving | 1924 Summer | |
| Evan MacDonald | Canada | Wrestling | 2004 Summer | |
| Ewan MacDonald | Great Britain | Curling | 2002 Winter, 2006 Winter, 2010 Winter | |
| Fiona MacDonald | 2002 Winter | |
| Florence MacDonald | United States | Athletics | 1928 Summer | |
| Garfield MacDonald | Canada | 1908 Summer | |
| Gary MacDonald | Swimming | 1976 Summer | |
| Les MacDonald | Rowing | 1932 Summer, 1936 Summer | |
| Irene MacDonald | Diving | 1956 Summer, 1960 Summer | |
| Jackie MacDonald | Athletics | 1956 Summer | |
| Jamie Macdonald | Short track speed skating | 2018 Winter | |
| Jack Macdonald | New Zealand | Rowing | 1932 Summer | |
| John MacDonald | Canoe sprint | 1988 Summer, 1992 Summer | |
| Lane MacDonald | United States | Ice hockey | 1988 Winter | |
| Linsey MacDonald | Great Britain | Athletics | 1980 Summer | |
| Malcolm MacDonald | United States | Tennis | 1904 Summer | |
| Matt Macdonald | New Zealand | Rowing | 2020 Summer, 2024 Summer | |
| Monica MacDonald | Australia | Figure skating | 1988 Winter | |
| Oliver Macdonald | United States | Athletics | 1924 Summer | |
| Paul MacDonald | New Zealand | Canoe sprint | 1984 Summer, 1988 Summer, 1992 Summer | |
| Philip MacDonald | Canada | Athletics | 1924 Summer | |
| Rena MacDonald | United States | 1928 Summer | |
| Ronald MacDonald | 1900 Summer | |
| Ross MacDonald | Canada | Sailing | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Sandy MacDonald | 1960 Summer, 1964 Summer | |
| Stewart MacDonald | United States | Rowing | 1968 Summer, 1972 Summer | |
| Iain MacDonald-Smith | Great Britain | Sailing | 1968 Summer, 1976 Summer | |
| James MacDougall | Canada | Field hockey | 1976 Summer | |
| Jeffrey MacDougall | Great Britain | Modern pentathlon | 1932 Summer, 1936 Summer | |
| Lynne MacDougall | Athletics | 1984 Summer | |
| Benjamin Macé | France | Short track speed skating, Speed skating | 2010 Winter, 2014 Winter | |
| David MacEachern | Canada | Bobsleigh | 1992 Winter, 1994 Winter, 1998 Winter | |
| Shanyn MacEachern | Artistic gymnastics | 1996 Summer | |
| José Macedo | Brazil | Shooting | 1924 Summer | |
| Leandro Macedo | Triathlon | 2000 Summer, 2004 Summer | |
| Marcos Macedo | Swimming | 2016 Summer | |
| Michel Macedo | Alpine skiing | 2018 Winter, 2022 Winter | |
| Paulo Macedo | Angola | Basketball | 1992 Summer | |
| Rafael Macedo | Brazil | Judo | 2020 Summer, 2024 Summer | |
| Roberto de Macedo | Equestrian eventing | 2000 Summer | |
| Boštjan Maček | Slovenia | Shooting | 2012 Summer, 2016 Summer | |
| Brooks Macek | Germany | Ice hockey | 2018 Winter | |
| Luděk Macela | Czechoslovakia | Football | 1980 Summer | |
| Pavel Macenauer | Tennis | 1924 Summer | |
| Ismail Mačev | Yugoslavia | Athletics | 1988 Summer | |
| Arthur MacEvoy | France | Cricket | 1900 Summer | |
| Dean Macey | Great Britain | Athletics | 2000 Summer, 2004 Summer | |
| Donna MacFarlane | Australia | 2008 Summer | |
| Eve Macfarlane | New Zealand | Rowing | 2012 Summer, 2016 Summer, 2020 Summer | |
| John MacGilchrist | United States | Art competitions | 1932 Summer | |
| Maurice MacGonigal | Ireland | 1948 Summer | |
| Mickey MacGowan | Canada | Boxing | 1924 Summer | |
| Peter MacGowan | Rowing | 1984 Summer | |
| George McGrath | Great Britain | Field hockey | 1920 Summer | |
| Donald Macgregor | Athletics | 1972 Summer | |
| Jim MacGregor | South Africa | Boxing | 1920 Summer | |
| Jock MacGregor | Canada | 1924 Summer | |
| Kate MacGregor | Great Britain | Sailing | 2012 Summer | |
| Lucy MacGregor | 2012 Summer | |
| Angelika Mach | Poland | Athletics | 2020 Summer, 2024 Summer | |
| Gerard Mach | 1952 Summer | |
| Jaroslav Mach | Czechoslovakia | Shooting | 1924 Summer, 1936 Summer | |
| Milan Mach | Czech Republic | 1996 Summer | |
| Pavel Mach | Czechoslovakia | 1924 Summer | |
| Vítězslav Mácha | Wrestling | 1968 Summer, 1972 Summer, 1976 Summer, 1980 Summer | |
| Oldřich Machač | Ice hockey | 1968 Winter, 1972 Winter, 1976 Winter | |
| Tomáš Macháč | Czech Republic | Tennis | 2020 Summer, 2024 Summer | |
| Dušan Macháček | Czechoslovakia | Rowing | 1988 Summer, 1992 Summer | |
| Raúl Machacuay | Peru | Athletics | 2016 Summer | |
| Albertina Machado | Portugal | 1984 Summer, 1988 Summer, 1996 Summer | |
| Alfredo Machado | Brazil | Swimming | 1972 Summer | |
| Antônio Machado | Fencing | 1988 Summer | |
| Carlos Machado | Spain | Table tennis | 2012 Summer | |
| Catherine Machado | United States | Figure skating | 1956 Winter | |
| Deiver Machado | Colombia | Football | 2016 Summer | |
| Hugo Machado | Uruguay | Road cycling | 1952 Summer | |
| José Machado | Portugal | Rowing | 1948 Summer | |
| Juliana Machado | Angola | Handball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Keno Machado | Brazil | Boxing | 2020 Summer, 2024 Summer | |
| Laildo Machado | Rowing | 1980 Summer, 1984 Summer | |
| Luís Machado | Portugal | 1948 Summer | |
| Luiza Machado | Brazil | Volleyball | 1984 Summer | |
| Maíla Machado | Athletics | 2004 Summer, 2008 Summer, 2016 Summer | |
| Marcelinho Machado | Basketball | 2012 Summer | |
| Manuela Machado | Portugal | Athletics | 1992 Summer, 1996 Summer, 2000 Summer | |
| Mariana Machado | 2024 Summer | |
| Miguel Machado | Swimming | 1996 Summer | |
| Paulo Machado | Brazil | 2004 Summer | |
| Roger Machado | Cuba | Baseball | 2004 Summer | |
| Roseli Machado | Brazil | Athletics | 1996 Summer | |
| Sérgio Toledo Machado | Basketball | 1964 Summer, 1968 Summer | |
| Teresa Machado | Portugal | Athletics | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Virginie Machado | France | Artistic gymnastics | 1992 Summer | |
| C. C. Machaiah | India | Boxing | 1976 Summer | |
| Antonia Machaira | Greece | Swimming | 1996 Summer, 2000 Summer | |
| Josef Machaň | Czechoslovakia | Athletics | 1924 Summer | |
| Josef Machan | Shooting | 1980 Summer | |
| Faith Macharia | Kenya | Athletics | 2004 Summer | |
| Creve Armando Machava | Mozambique | 2020 Summer | |
| Maria Machava | Sailing | 2020 Summer | |
| Gia Machavariani | Georgia | Weightlifting | 2012 Summer | |
| Tsotne Machavariani | Shooting | 2016 Summer | |
| Alberto Machaze | Mozambique | Boxing | 1988 Summer | |
| Daniel Machek | Czechoslovakia | Swimming | 1980 Summer | |
| Václav Machek | Track cycling | 1956 Summer | |
| Artsiom Machekin | Belarus | Swimming | 2020 Summer | |
| Ntewane Machel | Mozambique | 1980 Summer | |
| Ayuba Machem | Nigeria | Athletics | 1996 Summer | |
| H. MacHenry [ Wikidata ] | United States | Sailing | 1900 Summer | |
| Helena Macher | Poland | Luge | 1964 Winter, 1968 Winter | |
| Thomas Macher | Switzerland | Rowing | 1972 Summer | |
| Fumihiko Machida | Japan | Badminton | 1992 Summer, 1996 Summer | |
| Kōki Machida | Football | 2020 Summer | |
| Rui Machida | Basketball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Tatsuki Machida | Figure skating | 2014 Winter | |
| Hiroshi Machii | Freestyle skiing | 1994 Winter | |
| Yoichi Machishima | Track cycling | 1976 Summer | |
| Albert Mächler | Switzerland | Biathlon | 1976 Winter | |
| Patrick Mächler | Cross country skiing | 1998 Winter, 2002 Winter | |
| Charlotte Machmer | Austria | Athletics | 1936 Summer | |
| Oded Machnes | Israel | Football | 1976 Summer | |
| Krystyna Machnicka-Urbańska | Poland | Fencing | 1972 Summer, 1976 Summer | |
| Emy Machnow | Sweden | Swimming | 1920 Summer | |
| James Machon | Great Britain | Freestyle skiing | 2014 Winter | |
| Machonet | Shooting | 1896 Summer | |
| Mohamed Machou | Algeria | Handball | 1980 Summer | |
| Irena Machovcak | Netherlands | Volleyball | 1992 Summer, 1996 Summer | |
| Miroslav Machovič | Slovakia | Swimming | 1996 Summer, 2000 Summer | |
| Julia Mächtig | Germany | Athletics | 2012 Summer | |
| Willi Machu | Austria | Field hockey | 1928 Summer | |
| Eva Machuca | Mexico | Athletics | 1992 Summer | |
| Santiago Machuca | Puerto Rico | Shooting | 1972 Summer | |
| Josephat Machuka | Kenya | Athletics | 1996 Summer | |
| Remigius Machura | Czechoslovakia | 1988 Summer | |
| Roberto Machusso | Brazil | Judo | 1976 Summer | |
| Ľubomír Machyniak | Slovakia | Biathlon | 1998 Winter | |
| Veronika Machyniaková | 2022 Winter | |
| Alberto Macías | Mexico | Football | 1992 Summer | |
| Daniela Macías | Peru | Badminton | 2020 Summer | |
| Isabel Macías | Spain | Athletics | 2012 Summer | |
| Oscar Macías | Cuba | Baseball | 2000 Summer | |
| Raúl Macías | Mexico | Boxing | 1952 Summer | |
| Tommy Macias | Sweden | Judo | 2020 Summer | |
| Trinidad Macías | Mexico | Volleyball | 1968 Summer | |
| Narcyz Maciaszczyk | Poland | Field hockey | 1952 Summer, 1960 Summer | |
| Aljoša Mačić [ Wikidata ] | Montenegro | Water polo | 2024 Summer | |
| Monika Maciejewska | Poland | Fencing | 1992 Summer | |
| Jan Maciejko | Ice hockey | 1948 Winter | |
| Sławomir Maciejowski | Rowing | 1972 Summer | |
| Ana Maria Maciel | Brazil | Rhythmic gymnastics | 2004 Summer | |
| Francisco Maciel | Mexico | Tennis | 1988 Summer, 1992 Summer | |
| Jorge Maciel | Spain | Sailing | 1996 Summer, 2000 Summer | |
| Leonel Maciel | Argentina | Handball | 2020 Summer, 2024 Summer | |
| Ubiratan Pereira Maciel | Brazil | Basketball | 1964 Summer, 1968 Summer, 1972 Summer | |
| Arvydas Macijauskas | Lithuania | 2004 Summer | |
| Aleksandrs Macijevskis | Latvia | Ice hockey | 2002 Winter | |
| Ondřej Macík | Czech Republic | Athletics | 2024 Summer | |
| Gian Luigi Macina | San Marino | 1992 Summer, 2000 Summer | |
| Gheorghe Măcinic | Romania | Rowing | 1952 Summer | |
| Keanna Macinnes | Great Britain | Swimming | 2024 Summer | |
| Al MacInnis | Canada | Ice hockey | 1998 Winter, 2002 Winter | |
| Bill MacIntosh | Sailing | 1952 Summer | |
| Don Macintosh | Basketball | 1956 Summer | |
| Henry Macintosh | Great Britain | Athletics | 1912 Summer | |
| Scott MacIntosh | Canada | Boxing | 2000 Summer | |
| Kazimierz Macioch | Poland | Wrestling | 1960 Summer, 1964 Summer | |
| John Macionis | United States | Swimming | 1936 Summer | |
| Jonas Mačiulis | Lithuania | Basketball | 2008 Summer, 2012 Summer, 2016 Summer | |
| Valdemaras Mačiulskis | Rowing | 1992 Summer | |
| Michalina Maciuszek | Poland | Cross country skiing | 1994 Winter | |
| Paulina Maciuszek | 2010 Winter, 2014 Winter | |
| Charles MacIver | Great Britain | Sailing | 1908 Summer | |
| Charles R. MacIver | 1908 Summer | |
| Charles MacIvor | Cross country skiing, Biathlon | 1980 Winter, 1984 Winter | |
| Monica MacIvor | South Africa | Art competitions | 1936 Summer | |
| Eugen Mack | Switzerland | Artistic gymnastics | 1928 Summer, 1936 Summer | |
| Karen Mack | West Germany | Athletics | 1972 Summer | |
| Kyle Mack | United States | Snowboarding | 2018 Winter | |
| Lutz Mack | East Germany | Artistic gymnastics | 1976 Summer, 1980 Summer | |
| Robert Mack | Austria | Ice hockey | 1988 Winter | |
| Thomas Mack | United States | Rowing | 1928 Summer, 1932 Summer | |
| Timothy Mack | Athletics | 2004 Summer | |
| Walter Mack | West Germany | Swimming | 1972 Summer | |
| Andrew Mackay | Cayman Islands | 2004 Summer | |
| Brendan Mackay | Canada | Freestyle skiing | 2022 Winter | |
| Craig Mackay | Speed skating | 1948 Winter, 1952 Winter | |
| David Mackay | New Zealand | Sailing | 1984 Summer | |
| Emily Mackay | United States | Athletics | 2024 Summer | |
| Ernie MacKay | Ireland | Football | 1924 Summer | |
| George MacKay | Canada | Rowing | 1924 Summer | |
| Iain Mackay | Great Britain | Field hockey | 2012 Summer | |
| Ian Mackay | Zimbabwe | 1964 Summer | |
| Jhonny MacKay | Ecuador | Judo | 1976 Summer | |
| Kitty Mackay | Australia | Swimming | 1936 Summer | |
| Mark MacKay | Germany | Ice hockey | 1998 Winter, 2002 Winter | |
| Melanie MacKay | Canada | Swimming | 1976 Summer | |
| Morne MacKay [ Wikidata ] | South Africa | Baseball | 2000 Summer | |
| Nancy Mackay | Canada | Athletics | 1948 Summer | |
| Sören Mackeben | Germany | Water polo | 2004 Summer, 2008 Summer | |
| Eddie Macken | Ireland | Equestrian jumping | 1992 Summer, 1996 Summer | |
| Gerry Macken | Bobsleigh | 1992 Winter | |
| Peter Macken | Australia | Modern pentathlon, Fencing | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer, 1976 Summer | |
| Barry MacKenzie | Canada | Ice hockey | 1964 Winter, 1968 Winter | |
| Cameron Mackenzie | Australia | Athletics | 1996 Summer | |
| Daniel Mackenzie | Kenya | Sailing | 1960 Summer | |
| Don MacKenzie | Canada | Rowing | 1904 Summer | |
| George MacKenzie | Great Britain | Wrestling | 1908 Summer, 1912 Summer, 1920 Summer, 1924 Summer, 1928 Summer | |
| Ian MacKenzie | Canada | Swimming | 1972 Summer | |
| Joel Mackenzie | Cuba | Weightlifting | 2000 Summer | |
| John Mackenzie | Great Britain | Sailing | 1908 Summer | |
| Kate Mackenzie | Rowing | 1996 Summer, 2000 Summer | |
| Kate Mackenzie | United States | 2004 Summer | |
| Linda Mackenzie | Australia | Swimming | 2004 Summer, 2008 Summer | |
| Oceana Mackenzie | Sport climbing | 2020 Summer, 2024 Summer | |
| Ross MacKenzie | Canada | Athletics | 1968 Summer | |
| Sloan MacKenzie | Canoe sprint | 2024 Summer | |
| Sofía MacKenzie | Argentina | Field hockey | 1996 Summer | |
| Sophie MacKenzie | New Zealand | Rowing | 2016 Summer | |
| Stuart Mackenzie | Australia | 1956 Summer | |
| Frank MacKey | Great Britain | Polo | 1900 Summer | |
| Trevorvano Mackey | Bahamas | Athletics | 2012 Summer | |
| Charles Mackie | Great Britain | Shooting | 1924 Summer | |
| Gael Mackie | Canada | Artistic gymnastics | 2004 Summer | |
| Ian Mackie | Great Britain | Athletics | 1996 Summer | |
| Lise Mackie | Australia | Swimming | 1992 Summer, 1996 Summer | |
| Sandra Mackie | New Zealand | Field hockey | 1984 Summer | |
| Andrew Mackiewicz | United States | Fencing | 2020 Summer | |
| Konstanty Mackiewicz | Poland | Art competitions | 1936 Summer | |
| Robin Mackin | Canada | Softball | 2008 Summer | |
| Archibald MacKinnon | Rowing | 1956 Summer, 1960 Summer | |
| Duncan Mackinnon | Great Britain | 1908 Summer | |
| Duncan MacKinnon | South Africa | Judo | 1996 Summer | |
| Leonora MacKinnon | Canada | Fencing | 2016 Summer | |
| Sam Mackinnon | Australia | Basketball | 1996 Summer, 2000 Summer | |
| Zoe MacKinnon | Canada | Field hockey | 1984 Summer | |
| Alastair Mackintosh | New Zealand | Rowing | 1996 Summer | |
| Alexander Mackintosh | United States | Golf | 1904 Summer | |
| Charlach Mackintosh | Great Britain | Alpine skiing | 1956 Winter, 1960 Winter | |
| Chris Mackintosh | Athletics | 1924 Summer | |
| Douglas Mackintosh | Alpine skiing | 1956 Winter | |
| Sheena Mackintosh | 1948 Winter, 1952 Winter | |
| Tom Mackintosh | New Zealand | Rowing | 2020 Summer, 2024 Summer | |
| Vora Mackintosh | Great Britain | Alpine skiing | 1952 Winter | |
| David Macklin | Rowing | 1952 Summer | |
| Kim Mackney | Australia | 1972 Summer | |
| Wal Mackney | 1936 Summer | |
| Stephen Macknowski | United States | Canoe sprint | 1948 Summer | |
| Martin Mačković | Serbia | Rowing | 2020 Summer, 2024 Summer | |
| Borut Mačkovšek | Slovenia | Handball | 2024 Summer | |
| Anton Mackowiak | Germany | Wrestling | 1952 Summer | |
| Jules Mackowiak | France | Canoe sprint | 1936 Summer | |
| Robert Maćkowiak | Poland | Athletics | 1996 Summer, 2000 Summer | |
| William MacKune | Great Britain | Artistic gymnastics | 1912 Summer | |
| Cyril Mackworth-Praed | Shooting | 1924 Summer, 1952 Summer | |
| Sarah Macky | New Zealand | Sailing | 2000 Summer, 2004 Summer | |
| Alan MacLachlan | Canada | Bobsleigh | 1980 Winter, 1984 Winter | |
| Gilchrist Maclagan | Great Britain | Rowing | 1908 Summer | |
| Brian MacLaren | Canada | Athletics | 1968 Summer, 1972 Summer | |
| John MacLaughlin | United States | Fencing | 1912 Summer | |
| Alain Macle | France | Ski jumping | 1968 Winter, 1972 Winter | |
| Brittany MacLean | Canada | Swimming | 2012 Summer, 2016 Summer | |
| Craig MacLean | Great Britain | Track cycling | 2000 Summer, 2004 Summer | |
| Heather MacLean | Canada | Swimming | 2012 Summer | |
| Heather MacLean | United States | Athletics | 2020 Summer | |
| Henri MacLean | Netherlands | Art competitions | 1928 Summer | |
| Oliver Maclean | New Zealand | Rowing | 2024 Summer | |
| Paul MacLean | Canada | Ice hockey | 1980 Winter | |
| Ella Maclean-Howell | Great Britain | Cycling mountain bike | 2024 Summer | |
| Doug MacLennan | Australia | Artistic gymnastics | 1964 Summer | |
| Rosie MacLennan | Canada | Trampolining | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Alastair MacLeod | Great Britain | Rowing | 1952 Summer | |
| Carla MacLeod | Canada | Ice hockey | 2006 Winter, 2010 Winter | |
| Donald MacLeod | Cross country skiing | 1964 Winter | |
| Hannah Macleod | Great Britain | Field hockey | 2012 Summer, 2016 Summer | |
| James MacLeod | Rowing | 1976 Summer, 1980 Summer | |
| John MacLeod | Canoe slalom | 1972 Summer | |
| John MacLeod | Canada | Water polo | 1976 Summer | |
| Karen MacLeod | Great Britain | Athletics | 1996 Summer | |
| Kathleen MacLeod | Australia | Basketball | 2012 Summer | |
| Moira MacLeod | Great Britain | Field hockey | 1988 Summer | |
| Nicola Macleod | South Africa | Water polo | 2020 Summer | |
| Tammy MacLeod | Canada | Diving | 1976 Summer | |
| Colin MacLeod Robertson | Great Britain | Sailing | 1908 Summer | |
| Billy MacMillan | Canada | Ice hockey | 1968 Winter | |
| Don MacMillan | Australia | Athletics | 1952 Summer, 1956 Summer | |
| Duncan Macmillan | Great Britain | 1912 Summer | |
| John MacMillan | Rowing | 1952 Summer | |
| John MacMillan | 1952 Summer | |
| Ricky MacMillan | Australia | Equestrian dressage | 2000 Summer, 2004 Summer | |
| Sandy MacMillan | Canada | Sailing | 1976 Summer | |
| Shannon MacMillan | United States | Football | 1996 Summer, 2000 Summer | |
| Frederick William MacMonnies | Art competitions | 1932 Summer | |
| James MacNabb | Great Britain | Rowing | 1924 Summer | |
| Brinsley MacNamara | Ireland | Art competitions | 1924 Summer | |
| Michele MacNaughton | South Africa | Field hockey | 2000 Summer | |
| Hermon Atkins MacNeil | United States | Art competitions | 1928 Summer, 1932 Summer | |
| Dick MacNeill | Netherlands | Football | 1920 Summer | |
| René Macors | Belgium | Rowing | 1928 Summer | |
| Bogdan Macovei | Moldova | Luge | 2006 Winter, 2010 Winter, 2014 Winter | |
| Daniel Macovei | Romania | Swimming | 2016 Summer | |
| Elena Macovei | Shooting | 1984 Summer | |
| Maria Macovei | 1984 Summer | |
| Camelia Macoviciuc-Mihalcea | Rowing | 1996 Summer, 2004 Summer | |
| Leslie MacPhail | Belgium | Judo | 1972 Summer | |
| Bruce MacPherson | Canada | Field hockey | 1984 Summer | |
| Michelle MacPherson | Swimming | 1984 Summer | |
| Jean-Baptiste Macquet | France | Rowing | 2004 Summer, 2008 Summer | |
| Michel Macquet | Athletics | 1956 Summer, 1960 Summer, 1964 Summer | |
| Richard MacQuire | Australia | Canoe slalom | 1996 Summer | |
| John Macready | United States | Artistic gymnastics | 1996 Summer | |
| Federica Macrì | Italy | 2008 Summer | |
| Giuseppina Macrì | Judo | 2004 Summer | |
| Nicolas Macrozonaris | Canada | Athletics | 2000 Summer, 2004 Summer | |
| József Mácsár | Hungary | 1964 Summer | |
| Katie Mactier | Australia | Track cycling | 2004 Summer, 2008 Summer | |
| Soňa Maculová | Slovakia | Alpine skiing | 2006 Winter | |
| Andrzej Macur | Poland | Shooting | 1980 Summer | |
| Julita Macur | 1992 Summer, 1996 Summer | |
| Stevo Macura | Yugoslavia | Rowing | 1972 Summer | |
| Meta Mačus | Slovenia | Athletics | 2000 Summer | |
| Milan Mačvan | Serbia | Basketball | 2016 Summer | |
| Charles MacWilliam | United States | Wrestling | 1924 Summer | |
| Mike Maczey | Germany | Athletics | 2000 Summer | |
| Maria Mączyńska | Poland | Archery | 1972 Summer | |
| Abdelmadjid Mada | Algeria | Athletics | 1980 Summer | |
| Bogdan Mada | Romania | Canoe sprint | 2012 Summer | |
| Natalia Madaj | Poland | Rowing | 2012 Summer, 2016 Summer | |
| Fadwa Sidi Madane | Morocco | Athletics | 2016 Summer | |
| Hassan Madani | Egypt | Wrestling | 2008 Summer, 2012 Summer | |
| Narimène Madani | Algeria | Volleyball | 2008 Summer | |
| Nasser Madani [ Wikidata ] | Iran | Fencing | 1964 Summer | |
| Csaba Madar | Hungary | Football | 1996 Summer | |
| Ede Mađar | Yugoslavia | Artistic gymnastics | 1952 Summer | |
| Hideo Madarame | Japan | Track cycling | 1964 Summer | |
| Makio Madarame | 1992 Summer | |
| Norbert Madaras | Hungary | Water polo | 2004 Summer, 2008 Summer, 2012 Summer | |
| Ádám Madarassy | Swimming | 2008 Summer | |
| Csaba Madarász | Speed skating | 1992 Winter | |
| Csilla Madarász | Swimming | 1960 Summer, 1964 Summer | |
| Dóra Madarász | Table tennis | 2020 Summer, 2024 Summer | |
| Endre Madarász | Athletics | 1932 Summer, 1936 Summer | |
| Tamás Madarász | Judo | 2012 Summer | |
| Viktória Madarász | Athletics | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Zsolt Madarasz | Switzerland | Fencing | 1988 Summer | |
| Marwan Madarati | Syria | Football | 1980 Summer | |
| José Madariaga | Mexico | Equestrian jumping | 1996 Summer | |
| Ilona Madary | Hungary | Artistic gymnastics | 1936 Summer | |
| Adrian Madaschi | Australia | Football | 2004 Summer | |
| Khandadash Madatov | Soviet Union | Athletics | 1952 Summer | |
| Israel Madaye | Chad | Archery | 2024 Summer | |
| Rex Maddaford | New Zealand | Athletics | 1968 Summer | |
| Sagen Maddalena | United States | Shooting | 2020 Summer, 2024 Summer | |
| Giuseppe Maddaloni | Italy | Judo | 2000 Summer, 2008 Summer | |
| Pierre Maddaloni | France | Rowing | 1964 Summer | |
| Beezie Madden | United States | Equestrian jumping | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Cicely Madden | Rowing | 2020 Summer | |
| Grace Madden | Figure skating | 1936 Winter | |
| J. Lester Madden | 1932 Winter, 1936 Winter | |
| Paige Madden | Swimming | 2020 Summer, 2024 Summer | |
| William Maddison | Great Britain | Sailing | 1920 Summer | |
| John Maddock | Australia | Basketball | 1976 Summer | |
| Charné Maddocks | South Africa | Field hockey | 2020 Summer | |
| Chris Maddocks | Great Britain | Athletics | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| John Maddocks | Sailing | 1984 Summer | |
| Jay Maddox [ Wikidata ] | United States | Art competitions | 1932 Summer | |
| Kareem Maddox | 3x3 basketball | 2024 Summer | |
| Juliusz Madecki | Austria | Rowing | 2004 Summer | |
| Diogo Madeira | Portugal | Swimming | 1988 Summer, 1992 Summer, 1996 Summer | |
| Edson Madeira | Mozambique | Judo | 2008 Summer | |
| Fernando Madeira | Portugal | Swimming, Water polo | 1952 Summer | |
| Louis Madeira | United States | Athletics | 1912 Summer | |
| Uwe Madeja | East Germany | Canoe sprint | 1980 Summer | |
| Barbara Madejczyk | Poland | Athletics | 2004 Summer, 2008 Summer | |
| Jean Madelaine [ Wikidata ] | France | Track cycling | 1908 Summer | |
| Matthieu Madelaine | Swimming | 2008 Summer | |
| Sarah Madeleine | Athletics | 2024 Summer | |
| Gilles Madelenat | Water polo | 1992 Summer | |
| César Madelón | Argentina | Equestrian eventing | 1960 Summer | |
| Richard Maden | Great Britain | Swimming | 1996 Summer | |
| Carlos Mäder | Ghana | Alpine skiing | 2022 Winter | |
| Charlotte Mäder | Germany | Athletics | 1928 Summer | |
| Gino Mäder | Switzerland | Road cycling | 2020 Summer | |
| Günther Mader | Austria | Alpine skiing | 1988 Winter, 1992 Winter, 1994 Winter, 1998 Winter | |
| Gustav Mader | Bobsleigh | 1928 Winter | |
| Heinz Mäder | Germany | Water polo | 1964 Summer | |
| Tomáš Máder | Czech Republic | Canoe slalom | 2000 Summer, 2004 Summer | |
| Andrés Madera | Venezuela | Karate | 2020 Summer | |
| Hugo Madera | Cuba | Football | 1980 Summer | |
| Ezequiel Maderna | Argentina | Boxing | 2008 Summer | |
| Alberto Madero | Rowing | 1948 Summer, 1952 Summer | |
| Miguel Madero | 1924 Summer | |
| Priscilla Madero | Ecuador | Swimming | 1992 Summer | |
| Zuzana Maděrová [ Wikidata ] | Czech Republic | Snowboarding | 2022 Winter | |
| Tess Madgen | Australia | Basketball | 2020 Summer, 2024 Summer | |
| Mohamed Madhar | Suriname | Judo | 1984 Summer, 1988 Summer | |
| Ali Madi | Tunisia | Handball | 2000 Summer | |
| Lwazi Madi | South Africa | Water polo | 2020 Summer | |
| Mohamed Madi | Tunisia | Handball | 2000 Summer | |
| Nabil Madi | Algeria | Athletics | 2004 Summer, 2008 Summer | |
| Stefan Mädicke | East Germany | Sailing | 1988 Summer | |
| Eskerkhan Madiev | Georgia | Boxing | 2020 Summer | |
| Tony Madigan | Australia | 1952 Summer, 1956 Summer, 1960 Summer | |
| Luke Madill | Cycling BMX racing | 2008 Summer | |
| Stefka Madina | Bulgaria | Rowing | 1988 Summer | |
| Lévy Madinda | Gabon | Football | 2012 Summer | |
| Marion Madine | Ireland | Swimming | 1996 Summer | |
| Marc Madiot | France | Road cycling | 1980 Summer | |
| Harry Madison | Canada | Wrestling | 1932 Summer | |
| Helene Madison | United States | Swimming | 1932 Summer | |
| Rabah Madjer | Algeria | Football | 1980 Summer | |
| Noureddine Madjhoud | Boxing | 1996 Summer, 2000 Summer | |
| Fakhriddin Madkamov | Tajikistan | Swimming | 2024 Summer | |
| Hussein Madkour | Egypt | Football | 1948 Summer | |
| Mohamed Madkour | Road cycling, Track cycling | 1924 Summer | |
| Diane Madl | United States | Field hockey | 1996 Summer | |
| Ernst Madland | Norway | Artistic gymnastics | 1952 Summer | |
| Elad Madmon | Israel | Football | 2024 Summer | |
| Jacqueline Madogo | Canada | Athletics | 2024 Summer | |
| Ezio Madonia | Italy | 1988 Summer, 1996 Summer | |
| Christopher Madonna [ Wikidata ] | Baseball | 2000 Summer | |
| Albert Madörin | Switzerland | Bobsleigh | 1952 Winter | |
| Alejandro Madorno | Argentina | Equestrian jumping | 2012 Summer | |
| Valentin Madouas | France | Road cycling | 2024 Summer | |
| Ilona Mądra | Poland | Basketball | 2000 Summer | |
| Nazleen Madraswalla | India | Field hockey | 1980 Summer | |
| Germán Madrazo | Mexico | Cross country skiing | 2018 Winter | |
| Jean de Madre | Great Britain | Polo | 1900 Summer | |
| Fátima Madrid | Spain | Swimming | 1996 Summer | |
| Marcos Madrid | Mexico | Table tennis | 2016 Summer, 2024 Summer | |
| Joaquín Madrigal | Equestrian eventing | 1964 Summer | |
| Juan José Madrigal | Costa Rica | Swimming | 1996 Summer, 2000 Summer | |
| Orlando Madrigal | Judo | 1964 Summer | |
| Roberto Madrigal | Mexico | Diving | 1960 Summer, 1964 Summer | |
| Roger Madrigal | Costa Rica | Canoe slalom | 1996 Summer | |
| Ziranda Madrigal | Mexico | Cycling mountain bike | 2000 Summer | |
| Jeff Madrigali | United States | Sailing | 1996 Summer, 2000 Summer | |
| Djan Madruga | Brazil | Swimming | 1976 Summer, 1980 Summer, 1984 Summer | |
| Aage Madsen | Denmark | Tennis | 1912 Summer | |
| Aksel Madsen | Athletics | 1928 Summer | |
| Annie Madsen | Fencing | 1972 Summer, 1976 Summer, 1980 Summer | |
| Beth Madsen | United States | Alpine skiing | 1988 Winter | |
| Bonny Madsen | Denmark | Football | 1996 Summer | |
| Erik Madsen | Boxing | 1972 Summer | |
| Gitte Madsen | Handball | 1996 Summer | |
| Henry Madsen | Field hockey | 1928 Summer | |
| Jens Christian Madsen | Football | 1992 Summer | |
| Jens Christian Mosegaard Madsen | 1992 Summer | |
| Jens-Erik Madsen | Track cycling | 2008 Summer | |
| Jimmi Madsen | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Kristian Madsen | Artistic gymnastics | 1920 Summer | |
| Kurt Madsen | Wrestling | 1964 Summer, 1968 Summer | |
| Lars Jørgen Madsen | Shooting | 1900 Summer, 1908 Summer, 1912 Summer, 1920 Summer, 1924 Summer | |
| Lasse Bro Madsen [ Wikidata ] | Canoe sprint | 2024 Summer | |
| Lene Madsen | Football | 1996 Summer | |
| Lloyd Madsen | South Africa | Field hockey | 2012 Summer | |
| Mads Kongsgaard Madsen [ Wikidata ] | Denmark | Canoe sprint | 2004 Summer | |
| Marcus Madsen [ Wikidata ] | Sweden | Shooting | 2024 Summer | |
| Mark Madsen | Denmark | Wrestling | 2008 Summer, 2012 Summer, 2016 Summer | |
| Michael Madsen | Boxing | 1980 Summer | |
| Morten Madsen | Ice hockey | 2022 Winter | |
| Nanna Koerstz Madsen | Golf | 2016 Summer, 2020 Summer, 2024 Summer | |
| Niels Madsen | Boxing | 1988 Summer | |
| Ørjan Madsen | Norway | Swimming | 1968 Summer | |
| Paw Madsen | Sweden, Denmark | Canoe sprint | 1996 Summer, 2000 Summer | |
| Ricardt Madsen | Denmark | Boxing | 1928 Summer | |
| Robert Madsen | Artistic gymnastics | 1908 Summer | |
| Sigfred Madsen | Boxing | 1936 Summer | |
| Sofus Madsen | Norway | Art competitions | 1924 Summer | |
| Søren Madsen | Denmark | Rowing | 2000 Summer | |
| Svend Madsen | Artistic gymnastics | 1920 Summer | |
| Vigo Madsen | 1908 Summer, 1912 Summer | |
| Jennifer Madu | Nigeria | Athletics | 2016 Summer | |
| Kingsley Madu | Football | 2016 Summer | |
| Joice Maduaka | Great Britain | Athletics | 2000 Summer, 2004 Summer | |
| Sello Maduma | South Africa | Fencing | 2008 Summer | |
| Calvin Maduro | Netherlands | Baseball | 2004 Summer | |
| Hedwiges Maduro | Football | 2008 Summer | |
| Remy Maduro [ Wikidata ] | Baseball | 2000 Summer | |
| Victor Maduro | Aruba | Judo | 1988 Summer | |
| Willem Maduro | Netherlands Antilles | 1976 Summer | |
| Mohammad Madwa | Kuwait | Swimming | 2008 Summer | |
| Levente Mady | Canada | 1984 Summer | |
| David Madzhar | Bulgaria | Alpine skiing | 1948 Winter | |
| Khristo Madzharov | Biathlon | 1976 Winter | |
| Dzhakhongir Madzhidov [ Wikidata ] | Tajikistan | Judo | 2024 Summer | |
| Kamandar Madzhidov | Soviet Union, Belarus | Wrestling | 1988 Summer, 1996 Summer | |
| Christopher Madzokere | Zimbabwe | Athletics | 1984 Summer | |
| Epp Mäe | Estonia | Wrestling | 2016 Summer, 2020 Summer | |
| Jaak Mae | Cross country skiing | 1994 Winter, 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter | |
| Terepai Maea | Cook Islands | Boxing | 1988 Summer | |
| Daizen Maeda | Japan | Football | 2020 Summer | |
| Echiko Maeda | Volleyball | 1976 Summer | |
| Honami Maeda | Athletics | 2020 Summer | |
| Kayono Maeda | Track cycling | 2012 Summer | |
| Mahina Maeda | Surfing | 2020 Summer | |
| Masayasu Maeda | Basketball | 1936 Summer | |
| Miyuki Maeda | Badminton | 2008 Summer, 2012 Summer | |
| Mutsuhiko Maeda | Speed skating | 1968 Winter, 1972 Winter | |
| Rikutoshi Maeda | Equestrian eventing | 1964 Summer | |
| Suzuka Maeda | Ice hockey | 2018 Winter, 2022 Winter | |
| Kurt Maeder | Switzerland | Equestrian jumping | 1972 Summer | |
| Max Maeder | Singapore | Sailing | 2024 Summer | |
| Isabella Maegli | Guatemala | 2020 Summer | |
| Juan Maegli | 1976 Summer, 1980 Summer, 1984 Summer | |
| Juan Ignacio Maegli | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Hideaki Maeguchi | Japan | Rowing | 1984 Summer, 1988 Summer | |
| Hideko Maehata | Swimming | 1932 Summer, 1936 Summer | |
| Roberto Maehler | Brazil | Canoe sprint | 2016 Summer | |
| Odd Mæhlum | Norway | Athletics | 1948 Summer | |
| Lukas Mähr | Austria | Sailing | 2024 Summer | |
| Kenkichi Maekawa | Japan | Wrestling | 1976 Summer | |
| Miyuki Maekawa | Fencing | 1984 Summer | |
| Senpan Maekawa | Art competitions | 1932 Summer, 1936 Summer | |
| John Maeke | Solomon Islands | Athletics | 1988 Summer | |
| Saku Mäenalanen | Finland | Ice hockey | 2022 Winter | |
| Stefaan Maene | Belgium | Swimming | 1992 Summer | |
| Jules Maenen | Netherlands | Road cycling, Track cycling | 1952 Summer | |
| Isaura Maenhaut | Belgium | Sailing | 2020 Summer, 2024 Summer | |
| Wolfgang Maennig | West Germany | Rowing | 1984 Summer, 1988 Summer | |
| Aimo Mäenpää | Finland | Wrestling | 1964 Summer, 1972 Summer | |
| Ernestina Maenza | Spain | Alpine skiing | 1936 Winter | |
| Vincenzo Maenza | Italy | Wrestling | 1980 Summer, 1984 Summer, 1988 Summer, 1992 Summer | |
| Edgardo Maerina | Philippines | Rowing | 1988 Summer | |
| Charles Maerschalck | Belgium | Artistic gymnastics | 1920 Summer | |
| Else Mærsk-Kristensen | Denmark | Rowing | 1976 Summer | |
| Freddy Maertens | Belgium | Road cycling | 1972 Summer | |
| Pia Maertens | Germany | Field hockey | 2020 Summer | |
| Rémy Maertens | Belgium | Tug of war | 1920 Summer | |
| Albert Maes | Weightlifting | 1924 Summer, 1928 Summer | |
| André Maes | Sailing | 1960 Summer | |
| Christian Maes | 1968 Summer | |
| Jules Maes | Fencing | 1924 Summer | |
| Louis Maes | Canoe sprint | 1936 Summer | |
| Roger Maes | Volleyball | 1968 Summer | |
| Sam Maes | Alpine skiing | 2018 Winter, 2022 Winter | |
| Bob Maesen | Canoe sprint | 2000 Summer, 2004 Summer, 2008 Summer | |
| François Maesschalck | Water polo | 1952 Summer | |
| Peter Maestrales | Greece | Baseball | 2004 Summer | |
| Gabriel Maestre | Venezuela | Boxing | 2012 Summer, 2016 Summer | |
| Tommaso Maestrelli | Italy | Football | 1948 Summer | |
| Riccardo Maestri | Swimming | 2012 Summer | |
| Mihaela Maevska | Bulgaria | Rhythmic gymnastics | 2012 Summer, 2016 Summer | |
| Tim Maeyens | Belgium | Rowing | 2004 Summer, 2008 Summer, 2012 Summer | |
| Jérôme de Mayer | Archery | 1920 Summer | |
| Masakiyo Maezono | Japan | Football | 1996 Summer | |
| Asier Maeztu | Spain | Track cycling | 2004 Summer, 2008 Summer | |
| Ade Mafe | Great Britain | Athletics | 1984 Summer | |
| Alberto Maffei | Italy | Snowboarding | 2018 Winter | |
| Arturo Maffei | Athletics | 1936 Summer | |
| Cecilia Maffei | Short track speed skating | 2010 Winter, 2018 Winter | |
| Giuseppe Maffei | Athletics | 2000 Summer, 2004 Summer | |
| Ivano Maffei | Road cycling, Track cycling | 1980 Summer | |
| Michele Maffei | Fencing | 1968 Summer, 1972 Summer, 1976 Summer, 1980 Summer | |
| Agnese Maffeis | Athletics | 1992 Summer, 1996 Summer | |
| Joseph Maffioli | France | Ski jumping | 1928 Winter | |
| Ennio Maffiolini | Italy | Athletics | 1924 Summer | |
| Mateaki Mafi | Tonga | 1992 Summer | |
| José Mafio | Uruguay | Swimming | 2004 Summer | |
| Gheorghe Maftei | Romania | Bobsleigh | 1964 Winter, 1968 Winter | |
| Gheorghe Maftei | Weightlifting | 1980 Summer, 1984 Summer | |
| James Mafuta | Zambia | Judo | 1984 Summer | |
| Leyton Mafuta | 1992 Summer | |
| Lusambu Mafuta | Democratic Republic of the Congo | 1992 Summer | |
| Amanda Magadan | United States | Field hockey | 2024 Summer | |
| Jonathan Magagula | Eswatini | Boxing | 1984 Summer | |
| Jiří Magál | Czech Republic | Cross country skiing | 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter | |
| Simon Magalashvili | Israel | Judo | 1992 Summer | |
| Bráz Magaldi | Brazil | Shooting | 1932 Summer | |
| Sylvio de Magalhães Padilha | Athletics | 1932 Summer, 1936 Summer | |
| Ana Vitória Magalhães | Road cycling | 2024 Summer | |
| Fábio Magalhães | Portugal | Handball | 2020 Summer | |
| Fábio Luiz Magalhães | Brazil | Beach volleyball | 2008 Summer | |
| Jorge Magalhães | Portugal | Bobsleigh | 1988 Winter | |
| José Magalhães | Athletics | 1992 Summer, 1996 Summer | |
| Franka Magali | Democratic Republic of the Congo | 2008 Summer | |
| Lisandro Magallán | Argentina | Football | 2016 Summer | |
| Adelfo Magallanes | Peru | 1936 Summer | |
| José Rafael Magallanes | Venezuela | Fencing | 1984 Summer | |
| Brenda Magaña | Mexico | Artistic gymnastics | 2004 Summer | |
| Eduardo Magaña | Archery | 2004 Summer | |
| Nicholas Magana | Peru | Swimming | 2016 Summer | |
| Guy Maganga Gorra | Gabon | Athletics | 2020 Summer | |
| Gustavo Magariños | Uruguay | Basketball | 1948 Summer | |
| Ramón Magariños | Spain | Athletics | 1968 Summer | |
| István Magas | Hungary | Water polo | 1972 Summer | |
| László von Magasházy | Equestrian dressage | 1936 Summer | |
| Soungoutou Magassa | France | Football | 2024 Summer | |
| Dániel Magay | Hungary | Fencing | 1956 Summer | |
| Alicia Magaz | Spain | Field hockey | 2016 Summer, 2020 Summer | |
| Santos Magaz | Canoe sprint | 1980 Summer | |
| Pavel Magazeev [ Wikidata ] | Moldova | Biathlon | 2022 Winter | |
| Ezi Magbegor | Australia | Basketball | 2020 Summer, 2024 Summer | |
| Panagiotis Magdanis | Greece | Rowing | 2012 Summer, 2016 Summer | |
| László Magdics | Hungary | Athletics | 1928 Summer | |
| Ahmed Magdy | Egypt | Football | 2012 Summer | |
| Raghd Magdy | Table tennis | 2012 Summer | |
| Roman Magdziarczyk | Poland | Athletics | 2000 Summer, 2004 Summer | |
| Barry Magee | New Zealand | 1960 Summer, 1964 Summer | |
| Brian Magee | Ireland | Boxing | 1996 Summer | |
| Chloe Magee | Badminton | 2008 Summer, 2012 Summer, 2016 Summer | |
| Eugene Magee | Field hockey | 2016 Summer | |
| Ray Magee | Australia | Weightlifting | 1948 Summer | |
| Renee Magee | United States | Swimming | 1976 Summer | |
| Samantha Magee | Rowing | 2004 Summer | |
| W. F. Magee [ Wikidata ] | Great Britain | Track cycling | 1908 Summer | |
| Ciara Mageean | Ireland | Athletics | 2016 Summer, 2020 Summer | |
| Jordan Mageo | American Samoa | 2016 Summer | |
| Jessica Mager | Germany | Shooting | 2012 Summer | |
| Manuela Mager | East Germany | Figure skating | 1980 Winter | |
| Wolfgang Mager | Rowing | 1972 Summer, 1976 Summer | |
| John Magera | United States | Archery | 2004 Summer | |
| Hermann Magerl | West Germany | Athletics | 1972 Summer | |
| Rose Magers | United States | Volleyball | 1984 Summer | |
| Fränzi Mägert-Kohli | Switzerland | Snowboarding | 2010 Winter | |
| Alphons Magg | Art competitions | 1936 Summer | |
| Marouen Maggaiz | Tunisia | Handball | 2012 Summer, 2016 Summer | |
| Dave Maggard | United States | Athletics | 1968 Summer | |
| Marta Maggetti | Italy | Sailing | 2020 Summer, 2024 Summer | |
| Émile Maggi | France | Athletics | 1948 Summer, 1952 Summer | |
| Maurren Maggi | Brazil | 2000 Summer, 2008 Summer, 2012 Summer | |
| Romina Maggi | Argentina | 2004 Summer | |
| Itai Maggidi | Israel | 2008 Summer | |
| Martina Maggio | Italy | Artistic gymnastics | 2020 Summer | |
| Eduardo Maggiolo | Argentina | Wrestling | 1972 Summer | |
| Roberto Maggioni | Italy | Road cycling | 1988 Summer | |
| Ali Ben Maghenia | France | Boxing | 1980 Summer | |
| Lahcen Maghfour | Morocco | 1972 Summer | |
| Gavril Maghiar | Romania | Shooting | 1960 Summer, 1964 Summer | |
| Abdul Ali Maghoub | Egypt | Athletics | 1920 Summer | |
| Khalil Amira El-Maghrabi | Boxing | 1936 Summer | |
| Maryam Maghraby | Artistic swimming | 2020 Summer | |
| Andrea Magi | Italy | Boxing | 1988 Summer | |
| Rasmus Mägi | Estonia | Athletics | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Voldemar Mägi | Wrestling | 1936 Summer | |
| Jan Magiera | Poland | Road cycling | 1964 Summer, 1968 Summer | |
| Atalibio Magioni | Brazil | Rowing | 1976 Summer | |
| Stephanie Magiros | Australia | Snowboarding | 2014 Winter | |
| Abigail Magistrati | Argentina | Artistic gymnastics | 2020 Summer | |
| Luciano Magistrelli | Italy | Football | 1960 Summer | |
| Lucrezia Magistris | Weightlifting | 2024 Summer | |
| Gianluca Maglia | Swimming | 2012 Summer | |
| Karlha Magliocco | Venezuela | Boxing | 2012 Summer | |
| Jorge Miguel Maglioni | Argentina | 1992 Summer | |
| Evelyn Magluyan | Philippines | Artistic gymnastics | 1964 Summer | |
| Maninderjit Singh Magmar | Malaysia | Field hockey | 1996 Summer, 2000 Summer | |
| Clothilde Magnan | France | Fencing | 1996 Summer | |
| Jean-Claude Magnan | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| José Magnani | Brazil | Road cycling | 1936 Summer | |
| Margherita Magnani | Italy | Athletics | 2016 Summer | |
| Marziano Magnani | Wrestling | 1960 Summer | |
| Massimo Magnani | Athletics | 1976 Summer, 1980 Summer | |
| Primo Magnani | Track cycling | 1920 Summer | |
| Marcelo Magnasco | Argentina | Fencing | 1984 Summer | |
| Will Magnay | Australia | Basketball | 2024 Summer | |
| Frédéric Magné | France | Track cycling | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Roland Magnenat | Switzerland | Weightlifting | 1952 Summer | |
| Imogen Magner | Ireland | Rowing | 2024 Summer | |
| Claude Magni | France | Road cycling | 1972 Summer | |
| Fabio Magni | Italy | Equestrian eventing | 1992 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Gabriele Magni | Fencing | 2000 Summer | |
| Riccardo Magni | Wrestling | 2000 Summer | |
| Emmanuel Magnien | France | Road cycling | 1992 Summer | |
| Christine Magnier | Swimming | 1988 Summer | |
| Victor Magnier | Artistic gymnastics | 1908 Summer | |
| Walter Magnifico | Italy | Basketball | 1984 Summer | |
| Éric Magnin | France | Track cycling | 1992 Summer | |
| Maurice Magnin | Switzerland | Field hockey | 1928 Summer | |
| Thibault Magnin [ Wikidata ] | Spain | Freestyle skiing | 2022 Winter | |
| Filippo Magnini | Italy | Swimming | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Janine Magnin-Lamouche | France | Athletics | 1948 Summer | |
| Varvara Magnisali [ Wikidata ] | Greece | Rhythmic gymnastics | 2004 Summer | |
| Irish Magno | Philippines | Boxing | 2020 Summer | |
| Horst-Rüdiger Magnor | West Germany | Athletics | 1968 Summer, 1972 Summer | |
| Luigi Magnotti | Italy | Road cycling | 1924 Summer | |
| Mario Magnozzi | Football | 1924 Summer, 1928 Summer | |
| Tine Magnus | Belgium | Equestrian eventing | 2024 Summer | |
| Christine Magnuson | United States | Swimming | 2008 Summer | |
| Bjørn Magnussen | Norway | Speed skating | 2022 Winter | |
| Hans-Hermann Magnussen | Germany | Sailing | 1952 Summer | |
| James Magnussen | Australia | Swimming | 2012 Summer, 2016 Summer | |
| Karen Magnussen | Canada | Figure skating | 1968 Winter, 1972 Winter | |
| Karl Magnussen | Denmark | Track cycling | 1936 Summer | |
| Trond Magnussen | Norway | Ice hockey | 1994 Winter | |
| Ulf Magnussen | Handball | 1972 Summer | |
| Anders Magnusson | Sweden | Wrestling | 1996 Summer | |
| Anna Magnusson | Biathlon | 2018 Winter, 2022 Winter | |
| Christer Magnusson | Handball | 1984 Summer | |
| Christine Magnusson | Badminton | 1992 Summer, 1996 Summer | |
| Conrad Magnusson | United States | Tug of war | 1904 Summer | |
| Emil Magnusson | Sweden | Athletics | 1912 Summer | |
| Glenn Magnusson | Road cycling | 1992 Summer, 1996 Summer, 2000 Summer | |
| Gösta Magnusson | Weightlifting | 1948 Summer | |
| Greta Magnusson | Athletics | 1952 Summer | |
| Hans Magnusson | Speed skating | 1984 Winter, 1988 Winter | |
| Jón Magnússon | Iceland | Handball | 1972 Summer | |
| Jón Arnar Magnússon | Athletics | 1996 Summer, 2000 Summer, 2004 Summer | |
| Kristinn Magnússon | Alpine skiing | 2002 Winter | |
| Lennart Magnusson | Sweden | Fencing | 1952 Summer | |
| Oliwer Magnusson | Freestyle skiing | 2018 Winter, 2022 Winter | |
| Per-Alvar Magnusson | Swimming | 1980 Summer | |
| Ragnar Magnusson | Athletics | 1928 Summer | |
| Rolf Magnusson | Fencing | 1952 Summer | |
| Thomas Magnuson | Cross country skiing | 1972 Winter | |
| Verner Magnusson | Athletics | 1920 Summer | |
| Zemfira Magomedalieva | Russian Olympic Committee | Boxing | 2020 Summer | |
| Magomedomar Magomedomarov [ Wikidata ] | United Arab Emirates | Judo | 2024 Summer | |
| Davud Magomedov | Azerbaijan | Wrestling | 1996 Summer, 2000 Summer | |
| Gashim Magomedov | Taekwondo | 2024 Summer | |
| Islam Magomedov | Russia | Wrestling | 2016 Summer | |
| Jamaladdin Magomedov | Azerbaijan | 2012 Summer, 2016 Summer | |
| Khadzhimurad Magomedov | Russia | 1996 Summer | |
| Magomedkhan Magomedov | Azerbaijan | 2024 Summer | |
| Ramazan Magomedov | Belarus | Boxing | 2008 Summer | |
| Seyfula Magomedov | Russia | Taekwondo | 2004 Summer | |
| Lara Magoni | Italy | Alpine skiing | 1992 Winter, 1994 Winter, 1998 Winter | |
| Paoletta Magoni | 1984 Winter, 1988 Winter | |
| Edith Magonigle | United States | Art competitions | 1932 Summer | |
| Thimistokles Magoulas | Greece | Sailing | 1964 Summer | |
| Francis Peabody Magoun | United States | Art competitions | 1936 Summer | |
| Ahmed Bader Magour | Qatar | Athletics | 2016 Summer | |
| Roy McGowan | Ireland | Shooting | 1984 Summer | |
| Charlie Magri | Great Britain | Boxing | 1976 Summer | |
| Edoardo Magri | Malta | Water polo | 1928 Summer | |
| John Magri | Road cycling | 1972 Summer | |
| Fabio Magrini | Italy | Weightlifting | 1988 Summer | |
| Ahmed El-Magrisi | Libya | 1988 Summer | |
| Emily Maguire | Great Britain | Field hockey | 2012 Summer | |
| Evan Maguire | New Zealand | Athletics | 1968 Summer | |
| Harry Maguire | Ireland | Sailing | 1964 Summer | |
| Hugh Maguire [ Wikidata ] | United States | Athletics | 1912 Summer | |
| James Maguire | Canada | Basketball | 1964 Summer | |
| Catherine Maguire | United States | Athletics | 1928 Summer | |
| Leona Maguire | Ireland | Golf | 2016 Summer, 2020 Summer, 2024 Summer | |
| Lindsey Maguire | Great Britain | Rowing | 2012 Summer | |
| Raymond Maguire | Australia | Boxing | 1968 Summer | |
| Bhutana Magwaza | Eswatini | 1984 Summer | |
| Lindiwe Magwede | Zimbabwe | Football | 2016 Summer | |
| Armand Magyar | Hungary | Wrestling | 1924 Summer | |
| Geza Magyar | Romania | Canoe sprint | 1992 Summer, 1996 Summer, 2000 Summer | |
| Imre Magyar | Hungary | Rowing | 1992 Summer | |
| László Magyar | Swimming | 1956 Summer | |
| Tibor Magyar | Road cycling | 1968 Summer | |
| Zoltán Magyar | Artistic gymnastics | 1972 Summer, 1976 Summer, 1980 Summer | |
| Alda Magyari | Water polo | 2020 Summer, 2024 Summer | |
| Ibrahim Mahallame | Syria | Football | 1980 Summer | |
| Rachida Mahamane | Niger | Athletics | 1996 Summer | |
| Roukaya Mahamane | Swimming | 2016 Summer, 2020 Summer | |
| Bachir Mahamat | Chad | Athletics | 2016 Summer, 2020 Summer | |
| Mahamed Mahamed | Great Britain | 2024 Summer | |
| Amarhajy Mahamedau | Belarus | Wrestling | 2016 Summer | |
| Jack Mahan | United States | Athletics | 1920 Summer | |
| Victor Mahana | Chile | Basketball | 1948 Summer, 1952 Summer, 1956 Summer | |
| Makoekoe Mahanetsa | Lesotho | Athletics | 1996 Summer | |
| Kevin Mahaney | United States | Sailing | 1992 Summer | |
| Irina Maharani | Malaysia | Shooting | 2000 Summer | |
| Maryam March Maharani | Indonesia | Judo | 2024 Summer | |
| Rahal Mahassine | Morocco | Wrestling | 1960 Summer, 1968 Summer | |
| Kate Mahaut | Denmark | Fencing | 1948 Summer, 1952 Summer | |
| Oda Mahaut | France | 1928 Summer | |
| Charumai Mahawat | Thailand | Shooting | 1968 Summer | |
| Atef Mahayri | Syria | Wrestling | 1980 Summer | |
| Hasan Mahboob | Bahrain | Athletics | 2008 Summer, 2012 Summer | |
| Achraf Mahboubi | Morocco | Taekwondo | 2020 Summer | |
| Iman Mahdavi | Refugee Olympic Team | Wrestling | 2024 Summer | |
| Mehdi Mahdavi | Iran | Volleyball | 2016 Summer | |
| Kentin Mahé | France | Handball | 2016 Summer, 2020 Summer | |
| Pascal Mahé | 1992 Summer, 1996 Summer | |
| Murugesan Mahendran | Malaysia | Field hockey | 1972 Summer, 1976 Summer | |
| Ben Maher | Great Britain | Equestrian jumping | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Bill Maher | United States | Rowing | 1968 Summer | |
| Brett Maher | Australia | Basketball | 1996 Summer, 2000 Summer, 2004 Summer | |
| Emily Maher | Ireland | Athletics | 2000 Summer | |
| Ilona Maher | United States | Rugby sevens | 2020 Summer, 2024 Summer | |
| Kim Maher | Softball | 1996 Summer | |
| Nasser Maher | Egypt | Football | 2020 Summer | |
| Peter Maher | Canada | Athletics | 1988 Summer, 1992 Summer | |
| Robyn Maher | Australia | Basketball | 1984 Summer, 1988 Summer, 1996 Summer | |
| Sean Maher | Great Britain | Swimming | 1972 Summer, 1976 Summer | |
| Steven Maher | United States | Luge | 1988 Winter | |
| Renjith Maheshwary | India | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Nitya Krishinda Maheswari | Indonesia | Badminton | 2016 Summer | |
| Florence Maheu | Canada | Canoe slalom | 2020 Summer | |
| Caroline Maheux | Speed skating | 1988 Winter | |
| Husain Mahfoodh | Bahrain | Handball | 2020 Summer | |
| Mohamad Mahfoud | Syria | Shooting | 2000 Summer | |
| Ibrahim Mahgoub | Lebanon | Wrestling | 1948 Summer | |
| Kamal Mahgoub | Egypt | Weightlifting | 1952 Summer | |
| Mahmoud Mahgoub | 1984 Summer, 1988 Summer, 1992 Summer | |
| Geraldine Mahieu | Hungary | Water polo | 2024 Summer | |
| Jesse Mahieu | Netherlands | Field hockey | 2004 Summer | |
| Jules Mahieu | France | Shooting | 1924 Summer | |
| Pauline Mahieu [ Wikidata ] | Swimming | 2024 Summer | |
| Romain Mahieu | Cycling BMX racing | 2020 Summer, 2024 Summer | |
| Asadollah Mahini | Iran | Weightlifting | 1948 Summer | |
| Bouzid Mahiouz | Algeria | Football | 1980 Summer | |
| Joe Mahit | Vanuatu | Judo | 2016 Summer | |
| Attaher Mohamed El-Mahjoub | Libya | Table tennis | 1992 Summer | |
| Javad Mahjoub | Iran, Refugee Olympic Team | Judo | 2016 Summer, 2020 Summer | |
| Mohamed Ali Mahjoubi | Tunisia | Football | 1988 Summer | |
| Salek Mahju | Indonesia | Boxing | 1960 Summer | |
| Shaxriyor Mahkamov [ Wikidata ] | Uzbekistan | Canoe sprint | 2024 Summer | |
| Evald Mahl | Estonia | Basketball | 1936 Summer | |
| Hugo Måhl [ Wikidata ] | Sweden | Athletics | 1912 Summer | |
| Charles Mahlalela | Eswatini | Boxing | 1988 Summer | |
| Bongani Mahlangu | South Africa | 2004 Summer | |
| Duncan Mahlangu | Taekwondo | 2004 Summer | |
| Jabu Mahlangu | Football | 2000 Summer | |
| MacBeth Mahlangu | 2020 Summer | |
| Kamohelo Mahlatsi | 2020 Summer | |
| Walter Mahlendorf | Germany | Athletics | 1960 Summer | |
| Kai Mahler | Switzerland | Freestyle skiing | 2014 Winter | |
| Ivo Mahlknecht | Italy | Alpine skiing | 1964 Winter, 1968 Winter | |
| Wilhelm Mahlow | Germany | Rowing | 1936 Summer | |
| Arshad Mahmood | Pakistan | Field hockey | 1976 Summer | |
| Ayaz Mahmood | 1984 Summer | |
| Irfan Mahmood | 1996 Summer | |
| Khalid Mahmood | 1964 Summer, 1968 Summer | |
| Khalid Mahmood [ Wikidata ] | 1996 Summer | |
| Sultan Mahmood | Boxing | 1960 Summer, 1964 Summer | |
| Salma Mahmoud El Said Mohamed | Egypt | Artistic gymnastics | 2012 Summer | |
| Moustafa Mahmoud | Athletics | 2024 Summer | |
| Abdelrahman Mahmoud | Bahrain | 2020 Summer | |
| Aram Mahmoud | Refugee Olympic Team | Badminton | 2020 Summer | |
| Awad Mahmoud | Sudan | Judo | 1992 Summer | |
| Ayman Mahmoud | Egypt | Modern pentathlon | 1988 Summer | |
| Farouk Mahmoud | Football | 1964 Summer | |
| Ghanim Mahmoud | Iraq | Athletics | 1960 Summer | |
| Haithem Mahmoud | Egypt | Wrestling | 2016 Summer, 2020 Summer | |
| Hassan Mohamed Mahmoud | Athletics | 2016 Summer | |
| Jana Mahmoud | Artistic gymnastics | 2024 Summer | |
| Joseph Mahmoud | France | Athletics | 1984 Summer, 1992 Summer | |
| Kabil Mahmoud | Egypt | Artistic gymnastics | 1920 Summer | |
| Khaled Mahmoud | Handball | 1996 Summer | |
| Labib Mahmoud | Football | 1936 Summer | |
| Mohamed Mahmoud | Boxing | 1996 Summer | |
| Mohamed Ali Mahmoud | Track cycling | 1924 Summer | |
| Mohammed Moustafa Mahmoud | Iraq | Wrestling | 1980 Summer | |
| Yasser Mahmoud | Egypt | Handball | 1992 Summer, 1996 Summer | |
| Yasser Mahmoud | Fencing | 2004 Summer | |
| Younis Mahmoud | Iraq | Football | 2004 Summer | |
| Hussain Mahmoudi | Iran | Road cycling | 1992 Summer | |
| Shahram Mahmoudi | Volleyball | 2016 Summer | |
| Mahmoud Mahmoudpour | Boxing | 1964 Summer | |
| Almabruk Mahmud Mahmud | Libya | Weightlifting | 1980 Summer | |
| Dilshod Mahmudov | Uzbekistan | Boxing | 2004 Summer, 2008 Summer | |
| Elisabeth Mahn | Austria | Artistic swimming | 2008 Summer | |
| Eric Mahn | Chile | Basketball | 1952 Summer | |
| Peter Mahne | Yugoslavia | Handball | 1980 Summer | |
| Jean-Paul Maho | France | Road cycling | 1976 Summer | |
| László Mahó | Hungary | 1964 Summer | |
| Lerato Mahole | South Africa | Field hockey | 2020 Summer | |
| Rajab Mahommed | Botswana | Boxing | 2020 Summer | |
| Anna Mahon | United States | Athletics | 2004 Summer | |
| Chris Mahoney | Great Britain | Rowing | 1980 Summer, 1984 Summer | |
| Frank Mahoney | Bermuda | Athletics | 1948 Summer | |
| Julie Mahoney | Canada | Fencing | 2000 Summer | |
| Margie Mahoney | United States | Cross country skiing | 1972 Winter, 1976 Winter | |
| Travis Mahoney | Australia | Swimming | 2016 Summer | |
| Bill Mahony | Canada | 1968 Summer, 1972 Summer | |
| Dominic Mahony | Great Britain | Modern pentathlon | 1988 Summer, 1992 Summer | |
| Harold Mahony | Tennis | 1900 Summer | |
| Mike Mahood | Canada | Field hockey | 2000 Summer, 2008 Summer | |
| Atlee Mahorn | Athletics | 1984 Summer, 1988 Summer, 1992 Summer | |
| Karim El-Mahouab | Algeria | Handball | 1996 Summer | |
| Patrice Mahoulikponto | Benin | Athletics | 1988 Summer | |
| Mike Mahovlich | Canada | 1988 Summer | |
| Abdel Nabi El-Sayed Mahran | Egypt | Boxing | 1976 Summer | |
| Momen Mahran | Canoe sprint | 2020 Summer | |
| Salma Mahran | Fencing | 2012 Summer | |
| Winfried Mahraun | Germany | Diving | 1936 Summer | |
| Phil Mahre | United States | Alpine skiing | 1976 Winter, 1980 Winter, 1984 Winter | |
| Steve Mahre | 1976 Winter, 1980 Winter, 1984 Winter | |
| Daniel Mahrer | Switzerland | 1988 Winter, 1992 Winter, 1994 Winter | |
| Pavel Mahrer | Czechoslovakia | Football | 1924 Summer | |
| Erika Mahringer | Austria | Alpine skiing | 1948 Winter, 1952 Winter | |
| Ramzi Al-Mahrous | Saudi Arabia | Weightlifting | 2004 Summer | |
| Seljan Mahsudova | Azerbaijan | Trampolining | 2024 Summer | |
| El-Hassan Mahta | Morocco | Alpine skiing | 1992 Winter | |
| Yaroslava Mahuchikh | Ukraine | Athletics | 2020 Summer, 2024 Summer | |
| Mary-Estelle Mahuk | Vanuatu | 1992 Summer, 1996 Summer, 2000 Summer | |
| Maziah Mahusin | Brunei | 2012 Summer | |
| Nicolas Mahut | France | Tennis | 2016 Summer, 2020 Summer | |
| François Mahy | Belgium | Athletics | 1920 Summer | |
| Mai Chao | China | Football | 1988 Summer | |
| Mai Kangde | Boxing | 2000 Summer | |
| Mai Shaoyan | Field hockey | 2004 Summer | |
| Walter Mai | West Germany | Sailing | 1972 Summer | |
| David Maia | Portugal | Wrestling | 1996 Summer | |
| Edi Maia | Athletics | 2012 Summer | |
| Miguel Maia | Beach volleyball | 1996 Summer, 2000 Summer, 2004 Summer | |
| Pierrick Maïa | France | Ice hockey | 1994 Winter | |
| Rui Maia | Portugal | Athletics | 1952 Summer | |
| Thiago Maia | Brazil | Football | 2016 Summer | |
| Tom Maiava | Samoa | Rugby sevens | 2024 Summer | |
| Édouard Maibaum [ Wikidata ] | France | Track cycling | 1900 Summer | |
| Wolfgang Maibohm | East Germany | Volleyball | 1972 Summer | |
| Karalo Maibuca | Tuvalu | Athletics | 2020 Summer, 2024 Summer | |
| Frank Maichle | United States | Wrestling | 1920 Summer | |
| Luisa Maida | El Salvador | Shooting | 2000 Summer, 2008 Summer | |
| Rubén Maidana | Argentina | Water polo | 1948 Summer | |
| Julia Maidhof | Germany | Handball | 2024 Summer | |
| Kaimar-ud-Din bin Maidin | Malaya | Athletics | 1960 Summer | |
| Zacharia Maidjida | Central African Republic | 1992 Summer | |
| Harold Maidment | Great Britain | Canoe sprint | 1948 Summer | |
| Alexander Maier | Austria | Snowboarding | 2002 Winter, 2006 Winter | |
| Ariane Maier | Handball | 2000 Summer | |
| Arne Maier | Germany | Football | 2020 Summer | |
| Benjamin Maier | Austria | Bobsleigh | 2014 Winter, 2018 Winter, 2022 Winter | |
| Daniela Maier | Germany | Freestyle skiing | 2022 Winter | |
| Ernesto Maier | Italy | Luge | 1968 Winter, 1972 Winter | |
| Fred Anton Maier | Norway | Speed skating | 1964 Winter, 1968 Winter | |
| Gustav Maier | Germany | Rowing | 1928 Summer | |
| Hans Maier | 1928 Summer, 1932 Summer, 1936 Summer | |
| Hans Maier | Netherlands | Water polo | 1936 Summer | |
| Hermann Maier | Austria | Alpine skiing | 1998 Winter, 2006 Winter | |
| Jessica Maier | Brazil | Rhythmic gymnastics | 2016 Summer | |
| Leonie Maier | Germany | Football | 2016 Summer | |
| Markus Maier | Austria | Nordic combined | 1936 Winter | |
| Michal Maier | Czech Republic | Sailing | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Nicole Maier [ Wikidata ] | Germany | Swimming | 2024 Summer | |
| Otto Maier | Rowing | 1912 Summer | |
| Raphael Maier | Austria | Skeleton | 2014 Winter | |
| Rolf Maier | France | Weightlifting | 1960 Summer, 1964 Summer, 1968 Summer | |
| Rudi Maier | West Germany | Fencing | 1972 Summer | |
| Samuel Maier | Austria | Skeleton | 2022 Winter | |
| Sepp Maier | Germany | Cross country skiing | 1960 Winter | |
| Ulrike Maier | Austria | Alpine skiing | 1988 Winter, 1992 Winter | |
| Willi Maier | West Germany | Athletics | 1972 Summer, 1976 Summer | |
| Monika Maierhofer | Austria | Alpine skiing | 1992 Winter, 1994 Winter | |
| Hamchétou Maïga | Mali | Basketball | 2008 Summer | |
| Ibrahim Maiga [ Wikidata ] | Burkina Faso | Taekwondo | 2024 Summer | |
| Ibrahima Maïga | Mali | Athletics | 2004 Summer, 2008 Summer | |
| Viktor Maigourov | Belarus, Russia | Biathlon | 1994 Winter, 1998 Winter, 2002 Winter | |
| Chloé Maigre | France | Artistic gymnastics | 1992 Summer | |
| Julia Maik | Poland | Swimming | 2024 Summer | |
| Madison Mailey | Canada | Rowing | 2020 Summer | |
| Germán Mailhos | Uruguay | Equestrian jumping | 1960 Summer | |
| Edmond Maillard | Chile | Track cycling | 1928 Summer | |
| Georges Maillard [ Wikidata ] | France | Sailing | 1900 Summer | |
| Ella Maillart | Switzerland | 1924 Summer | |
| Hédoin de Maille | France | Equestrian dressage | 1920 Summer | |
| Augustin Maillefer | Switzerland | Rowing | 2012 Summer, 2016 Summer | |
| Jacques Maillet | France | 1948 Summer, 1952 Summer | |
| Françoise Mailliard | Fencing | 1960 Summer | |
| María Mailliard | Chile | Canoe sprint | 2020 Summer, 2024 Summer | |
| Christine Mailliet | Luxembourg | Swimming | 2008 Summer | |
| Amir Maimuratov | Kazakhstan | Sport climbing | 2024 Summer | |
| Corey Main | New Zealand | Swimming | 2016 Summer | |
| Grant Main | Canada | Rowing | 1984 Summer, 1988 Summer | |
| David Maina | Kenya | Weightlifting | 1988 Summer | |
| Felix Maina | Boxing | 1972 Summer | |
| George Maina | 1996 Summer | |
| Maurice Maina | 1988 Summer | |
| Marleve Mainaky | Indonesia | Badminton | 2000 Summer | |
| Rexy Mainaky | 1992 Summer, 1996 Summer, 2000 Summer | |
| Tsotang Maine | Lesotho | Athletics | 2008 Summer | |
| Henry Maingot | France | Sailing | 1900 Summer | |
| Bertold Mainka | Poland | Rowing | 1956 Summer | |
| Cristian Maino | Argentina | Canoe sprint | 1992 Summer | |
| Leo Mainoldi | Basketball | 2016 Summer | |
| Fabio Mainoni [ Wikidata ] | Italy | Swimming | 1900 Summer | |
| Jiří Mainuš | Czechoslovakia | Road cycling | 1972 Summer | |
| Pascale Mainville | Canada | Judo | 1992 Summer | |
| Sandrine Mainville | Swimming | 2016 Summer | |
| Conrad Mainwaring | Antigua and Barbuda | Athletics | 1976 Summer | |
| João Maio | Brazil | Rowing | 1952 Summer | |
| Mario Maiocchi | Italy | Ice hockey | 1936 Winter | |
| Luigi Maiocco | Artistic gymnastics | 1912 Summer, 1920 Summer, 1924 Summer | |
| Mauro Maiola | Argentina | Sailing | 1996 Summer | |
| Maria Maioru | Romania | Luge | 1980 Winter | |
| Nicodemus Maipampe | Zambia | Athletics | 1972 Summer | |
| Anna Maiques | Spain | Field hockey | 1992 Summer | |
| Dagmar Mair unter der Eggen | Italy | Snowboarding | 1998 Winter, 2002 Winter | |
| Bernhard Mair | Bobsleigh | 1994 Winter | |
| David Mair | Luge | 2010 Winter | |
| John Mair | Jamaica | Athletics | 1988 Summer | |
| Michael Mair | Italy | Alpine skiing | 1984 Winter, 1988 Winter | |
| Michael Mair | Ice hockey | 1984 Winter | |
| Sigisfredo Mair | Luge | 1964 Winter, 1968 Winter, 1972 Winter | |
| Adlin Mair-Clarke | Jamaica | Athletics | 1964 Summer, 1968 Summer | |
| Mario Maire | Argentina | Rowing | 1960 Summer | |
| Oswaldo Mairena | Nicaragua | Baseball | 1996 Summer | |
| Mary Mairs-Chapot | United States | Equestrian jumping | 1964 Summer, 1968 Summer | |
| John Mais | Artistic gymnastics | 1920 Summer, 1924 Summer | |
| Erna Maisack | Germany | Athletics | 1964 Summer | |
| Matti Maisala | Finland | Rowing | 1960 Summer | |
| Mauno Maisala | 1964 Summer | |
| Katharina Maisch | Germany | Athletics | 2020 Summer, 2024 Summer | |
| Ulrike Maisch | 2004 Summer | |
| Maison [ Wikidata ] | France | Rowing | 1900 Summer | |
| Wilfredo Maisonave | Puerto Rico | Athletics | 1972 Summer | |
| Léon Maisonnave [ Wikidata ] | France | Track cycling | 1900 Summer | |
| Brian Maisonneuve | United States | Football | 1996 Summer | |
| Jean Maissant | France | Athletics | 1952 Summer | |
| Barry Maister | New Zealand | Field hockey | 1968 Summer, 1972 Summer, 1976 Summer | |
| Selwyn Maister | 1968 Summer, 1972 Summer, 1976 Summer | |
| José Antonio Maita | Venezuela | Athletics | 2024 Summer | |
| Sergei Maitakov | Russia | Alpine skiing | 2010 Winter, 2014 Winter | |
| Bob Maitland | Great Britain | Road cycling | 1948 Summer | |
| Clover Maitland | Australia | Field hockey | 1996 Summer, 2000 Summer | |
| Johnnie Maitland | Shooting | 1956 Summer | |
| Robert Maitland | Water polo | 2008 Summer | |
| Ronald Maitland | Canada | Sailing | 1932 Summer | |
| Corinne Maîtrejean | France | Fencing | 2008 Summer, 2012 Summer | |
| Nojim Maiyegun | Nigeria | Boxing | 1964 Summer | |
| Chereno Maiyo | Kenya | Athletics | 1972 Summer | |
| Maureen Jelagat Maiyo | 2012 Summer, 2016 Summer | |
| Nyandika Maiyoro | 1956 Summer, 1960 Summer | |
| Laura Maiztegui | Argentina | Field hockey | 2000 Summer | |
| Fabio Maj | Italy | Cross country skiing | 1998 Winter, 2002 Winter | |
| Hana Majaj | Jordan | Swimming | 2000 Summer | |
| Gustavo Majauskas | Argentina | Weightlifting | 1992 Summer, 1996 Summer | |
| Christer Majbäck | Sweden | Cross country skiing | 1988 Winter, 1992 Winter, 1994 Winter | |
| Igor Majcen | Yugoslavia, Slovenia | Swimming | 1988 Summer, 1992 Summer, 1996 Summer | |
| Nace Majcen | Slovenia | 1992 Summer | |
| Tevarit Majchacheep | Thailand | Shooting | 2000 Summer, 2004 Summer | |
| Varavut Majchacheep | 2000 Summer | |
| Kacper Majchrzak | Poland | Swimming | 2012 Summer, 2016 Summer, 2020 Summer | |
| Kamil Majchrzak | Tennis | 2020 Summer | |
| Katarzyna Majchrzak | Athletics | 1992 Summer | |
| Witold Majchrzycki | Boxing | 1928 Summer | |
| Elias Majdalani | Lebanon | Alpine skiing | 1988 Winter, 1992 Winter | |
| Mateo Majdalani | Argentina | Sailing | 2024 Summer | |
| Dušan Majdán | Slovakia | Athletics | 2016 Summer | |
| Aya Majdi | Qatar | Table tennis | 2012 Summer | |
| Petra Majdič | Slovenia | Cross country skiing | 2002 Winter, 2006 Winter, 2010 Winter | |
| František Majdloch | Czechoslovakia | Boxing | 1948 Summer, 1952 Summer, 1956 Summer | |
| Nemanja Majdov | Serbia | Judo | 2020 Summer, 2024 Summer | |
| Abdolreza Majdpour | Iran | Water polo | 1976 Summer | |
| Benedict Majekodunmi | Nigeria | Athletics | 1968 Summer, 1972 Summer | |
| Josiah Majekodunmi | 1952 Summer | |
| Krzysztof Majerczak | Poland | Canoe slalom | 2020 Summer | |
| Władysława Majerczyk | Cross country skiing | 1972 Winter, 1976 Winter | |
| Mohamed Majeri | Tunisia | Boxing | 1972 Summer | |
| Dan Majerle | United States | Basketball | 1988 Summer | |
| Jakub Majerski | Poland | Swimming | 2020 Summer, 2024 Summer | |
| Christine Majerus | Luxembourg | Road cycling | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Jacques Majerus | 1936 Summer | |
| Jean Majérus | Track cycling | 1920 Summer | |
| Victor Majérus | Football | 1936 Summer | |
| Ivan Majeský | Slovakia | Ice hockey | 2002 Winter, 2006 Winter | |
| Bartosz Majewski | Poland | Modern pentathlon | 2008 Summer | |
| Janusz Majewski | Fencing | 1972 Summer | |
| Tomasz Majewski | Athletics | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Laxmirani Majhi | India | Archery | 2016 Summer | |
| Nur Herman Majid | Malaysia | Athletics | 1992 Summer | |
| Salah Majid | Iraq | 1960 Summer | |
| Stanley Majid | Myanmar | Boxing | 1952 Summer | |
| Falah Al-Majidi | Kuwait | Football | 1992 Summer | |
| Magomedrasul Majidov | Azerbaijan | Boxing | 2012 Summer, 2016 Summer | |
| Nobuhle Majika | Zimbabwe | Football | 2016 Summer | |
| Rafał Majka | Poland | Road cycling | 2016 Summer, 2020 Summer | |
| Manuel Majo | Spain | Water polo | 1928 Summer | |
| Montserrat Majo | Swimming | 1976 Summer | |
| Jacopo Majocchi | Italy | Canoe sprint | 2000 Summer | |
| Lineke Majolee | Netherlands | Artistic gymnastics | 1960 Summer | |
| Iva Majoli | Croatia | Tennis | 1996 Summer, 2000 Summer | |
| Mario Majoni | Italy | Water polo | 1948 Summer | |
| Billy Major [ Wikidata ] | Great Britain | Alpine skiing | 2022 Winter | |
| István Major | Hungary | Athletics | 1972 Summer, 1976 Summer | |
| Jean Major | Canada | Field hockey | 1984 Summer | |
| Sándor Major | Hungary | Wrestling | 1988 Summer | |
| Veronika Major | Shooting | 2020 Summer, 2024 Summer | |
| Bence Majoros | Table tennis | 2020 Summer | |
| István Majoros | Wrestling | 2000 Summer, 2004 Summer | |
| Alexander Majorov | Sweden | Figure skating | 2014 Winter | |
| Nikolaj Majorov | 2022 Winter | |
| Marta Majowska | Poland | Artistic gymnastics | 1936 Summer | |
| Eisa Majrashi | Saudi Arabia | Judo | 2012 Summer | |
| Amel Majri | France | Football | 2016 Summer | |
| Biljana Majstorović | Yugoslavia | Basketball | 1980 Summer, 1984 Summer | |
| Darko Majstorović | Rowing | 1976 Summer | |
| Dejan Majstorović | Serbia | 3x3 basketball | 2020 Summer, 2024 Summer | |
| Đorđe Majtan | Yugoslavia | Athletics | 1960 Summer | |
| Raimo Majuri | Finland | Nordic combined | 1964 Winter, 1968 Winter | |
| Małgorzata Majza | Poland | Artistic gymnastics | 1980 Summer | |
| Mak Chi Wai | Hong Kong | Canoe sprint | 1976 Summer | |
| Mak So Ning | Triathlon | 2008 Summer | |
| Anna Mąka | Poland | Luge | 1968 Winter | |
| Anna Mąka | Biathlon | 2022 Winter | |
| František Máka | Czechoslovakia, Czech Republic | Nordic combined | 1992 Winter, 1994 Winter | |
| Roy Makaay | Netherlands | Football | 2008 Summer | |
| Hesham Makabr [ Wikidata ] | Yemen | Judo | 2024 Summer | |
| Natalya Makagonova | Russia | Freestyle skiing | 2014 Winter | |
| M'tendere Makalamba | Malawi | Boxing | 1988 Summer | |
| Yves Ma-Kalambay | Belgium | Football | 2008 Summer | |
| Mamman Makama | Nigeria | Athletics | 1968 Summer, 1972 Summer | |
| Médard Makanga | Republic of the Congo | 1992 Summer | |
| Balázs Makány | Hungary | Swimming | 2004 Summer, 2008 Summer | |
| Morena Makar | Croatia | Snowboarding | 2014 Winter | |
| Robert Makara | Soviet Union | Nordic combined | 1968 Winter | |
| Kaisa Mäkäräinen | Finland | Biathlon | 2010 Winter, 2014 Winter, 2018 Winter | |
| Aliaksandr Makaranka | Belarus | Weightlifting | 2012 Summer | |
| Viachaslau Makaranka | Wrestling | 2000 Summer, 2004 Summer | |
| Jakob Makarashvili | Georgia | 2016 Summer | |
| Ihar Makarau | Belarus | Judo | 2004 Summer, 2012 Summer | |
| Tapiwanashe Makarawu | Zimbabwe | Athletics | 2024 Summer | |
| Nadzeya Makarchanka | Belarus | Canoe sprint | 2020 Summer | |
| Andriy Makarchev | Ukraine | Athletics | 2008 Summer | |
| Pyotr Makarchuk | Russia | Bobsleigh | 2002 Winter, 2006 Winter | |
| Alina Makarenko | Rhythmic gymnastics | 2012 Summer | |
| Evgeny Makarenko | Boxing | 2004 Summer | |
| Sergei Makarenko | Soviet Union | Canoe sprint | 1960 Summer | |
| Anatoly Makarevich | Unified Team | Athletics | 1992 Summer | |
| Aleksandr Makarov | Soviet Union | 1980 Summer | |
| Andrey Makarov | Kazakhstan | Weightlifting | 1996 Summer, 2000 Summer | |
| Andrey Makarov | Belarus | Athletics | 2000 Summer | |
| Ivan Makarov | Soviet Union | Rowing | 1952 Summer | |
| Maksim Makarov [ Wikidata ] | Moldova | Biathlon | 2022 Winter | |
| Oleg Makarov | Soviet Union | Figure skating | 1984 Winter, 1988 Winter | |
| Ruslan Makarov | Uzbekistan | Weightlifting | 2012 Summer | |
| Sergei Makarov | Soviet Union | Ice hockey | 1980 Winter, 1984 Winter, 1988 Winter | |
| Sergey Makarov | Russia | Athletics | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Viktor Makarov | Ukraine | Shooting | 1996 Summer, 2004 Summer | |
| Vitaly Makarov | Russia | Judo | 2000 Summer, 2004 Summer | |
| Anastasiia Makarova [ Wikidata ] | Russian Olympic Committee | Bobsleigh | 2022 Winter | |
| Ekaterina Makarova | Russia | Tennis | 2012 Summer, 2016 Summer | |
| Elena Makarova | 1996 Summer | |
| Ksenia Makarova | Figure skating | 2010 Winter | |
| Yelena Makarova | Swimming | 1996 Summer | |
| Sako Makata | South Africa | Rugby sevens | 2020 Summer | |
| Mokulubete Makatisi | Lesotho | Athletics | 2024 Summer | |
| Rainer Makatsch | West Germany | Ice hockey | 1972 Winter | |
| Miroslav Makaveev | Bulgaria | Wrestling | 1992 Summer | |
| Petkana Makaveeva | Basketball | 1976 Summer, 1980 Summer | |
| Karmele Makazaga | Spain | Handball | 1992 Summer | |
| Mohamed Makdouf | Morocco | Athletics | 1972 Summer | |
| Simeon Makedonski | Bulgaria | Swimming | 2000 Summer | |
| Vladimir Makeev | Soviet Union | Alpine skiing | 1980 Winter, 1984 Winter | |
| Hannu Mäkelä | Finland | Athletics | 1976 Summer | |
| Heikki Mäkelä | Canoe sprint | 1968 Summer, 1972 Summer, 1976 Summer | |
| Juha Mäkelä | Shooting | 1984 Summer | |
| Kaija Mäkelä | Swimming | 1952 Summer | |
| Kristiina Mäkelä | Athletics | 2016 Summer, 2020 Summer | |
| Mikko Mäkelä | Ice hockey | 1992 Winter, 1994 Winter | |
| Tapio Mäkelä | Cross country skiing | 1952 Winter | |
| Tuukka Mäkelä | Shooting | 1968 Summer | |
| Väinö Mäkelä | Athletics | 1948 Summer | |
| Wille Mäkelä | Curling | 2002 Winter, 2006 Winter | |
| Yrjö Mäkelä | Athletics | 1948 Summer | |
| Satu Mäkelä-Nummela | Shooting | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Claude Makélélé | France | Football | 1996 Summer | |
| Masibulele Makepula | South Africa | Boxing | 1996 Summer | |
| Andrey Makeyev | Soviet Union | Basketball | 1976 Summer | |
| Kseniya Makeyeva | Russian Olympic Committee | Handball | 2020 Summer | |
| Evidence Makgopa | South Africa | Football | 2020 Summer | |
| Mamello Makhabane | 2016 Summer | |
| Leonard Makhanya | Eswatini | Boxing | 1984 Summer | |
| Themba Makhanya | Athletics | 1996 Summer | |
| Robert Makharashvili | Georgia | Alpine skiing | 2002 Winter | |
| Dashdendev Makhashiri | Mongolia | Athletics | 1996 Summer | |
| Antonina Makhina | Soviet Union, Unified Team | Rowing | 1980 Summer, 1988 Summer, 1992 Summer | |
| Irma Makhinia | Russian Olympic Committee | Ski jumping | 2022 Winter | |
| Mohamed Makhlouf | Syria | Athletics | 1980 Summer | |
| Rabia Makhloufi | Algeria | 2008 Summer | |
| Taoufik Makhloufi | 2012 Summer, 2016 Summer | |
| Somon Makhmadbekov | Tajikistan | Judo | 2020 Summer, 2024 Summer | |
| Madikhan Makhmetov | Kazakhstan | Water polo | 2020 Summer | |
| Akzhol Makhmudov | Kyrgyzstan | Wrestling | 2020 Summer, 2024 Summer | |
| Aleksandr Makhmutov | Soviet Union | Boxing | 1988 Summer | |
| Vadzim Makhneu | Belarus | Canoe sprint | 2004 Summer, 2008 Summer, 2012 Summer | |
| Gennady Makhnev | Soviet Union | 1980 Summer | |
| Marharyta Makhneva | Belarus | 2012 Summer, 2016 Summer, 2020 Summer | |
| Vladimir Makhnutin | Russia | Luge | 2010 Winter, 2014 Winter | |
| Viktor Makhorin | Soviet Union | Handball | 1980 Summer | |
| Bilyal Makhov | Russia | Wrestling | 2012 Summer, 2016 Summer | |
| Todor Makhov | Bulgaria | Cross country skiing | 1988 Winter | |
| Henadzi Makhveyenia | Belarus | Weightlifting | 2008 Summer | |
| Hussein Al-Taib Maki | Saudi Arabia | Athletics | 1972 Summer | |
| Izumi Maki | Japan | 1992 Summer, 1996 Summer | |
| Jim Maki | United States | Ski jumping | 1976 Winter, 1980 Winter | |
| Joni Mäki | Finland | Cross country skiing | 2022 Winter | |
| Kristiina Mäki | Czech Republic | Athletics | 2020 Summer, 2024 Summer | |
| Matti Mäki | Finland | Swimming | 2004 Summer | |
| Shinichi Maki | Japan | Fencing | 1952 Summer | |
| Simbara Maki | Ivory Coast | Athletics | 1964 Summer, 1968 Summer, 1972 Summer | |
| Tauno Mäki | Finland | Shooting | 1952 Summer | |
| Arttu Mäkiaho | Nordic combined | 2018 Winter, 2022 Winter | |
| Yuso Makihira | Japan | Modern pentathlon | 1968 Summer, 1972 Summer | |
| Toivo Mäkikyrö | Finland | Biathlon | 1984 Winter | |
| Jali Mäkilä | Sailing | 1992 Summer, 1996 Summer, 2000 Summer | |
| Precious Makina | Zambia | Boxing | 2008 Summer | |
| Eino Mäkinen | Finland | Weightlifting | 1952 Summer, 1956 Summer, 1960 Summer, 1964 Summer | |
| Kaarlo Mäkinen | Wrestling | 1920 Summer, 1924 Summer, 1928 Summer | |
| Kari Mäkinen | Canoe sprint | 1964 Summer | |
| Kauko Mäkinen | Ice hockey | 1952 Winter | |
| Rauno Mäkinen | Wrestling | 1952 Summer, 1956 Summer, 1960 Summer | |
| Seppo Mäkinen | Shooting | 1972 Summer | |
| Derby Makinka | Zambia | Football | 1988 Summer | |
| Hiroko Makino | Japan | Swimming | 2024 Summer | |
| Shozo Makino | 1932 Summer, 1936 Summer | |
| Yukio Makino | Sailing | 2008 Summer, 2012 Summer, 2016 Summer | |
| Mitsutake Makita | Ski jumping | 1932 Winter | |
| Jarmo Mäkitalo | Finland | Ice hockey | 1980 Winter, 1984 Winter | |
| Masafumi Makiyama | Japan | Archery | 2000 Summer | |
| Youssef Makkar | Egypt | Shooting | 2020 Summer | |
| Mick Makker | Netherlands | Rowing | 2024 Summer | |
| Gyöngyi Mák-Kovács | Hungary | Artistic gymnastics | 1964 Summer | |
| Ilona Makláry-Buzek | Volleyball | 1972 Summer | |
| Brooke Makler | United States | Fencing | 1976 Summer | |
| Paul Makler Jr. | 1972 Summer | |
| Paul Makler Sr. | 1952 Summer | |
| Ahmed Maknzi | Iraq | Football | 2024 Summer | |
| Boris Makoev | Slovakia | Wrestling | 2020 Summer | |
| Teddy Makofi | Zambia | Boxing | 1980 Summer | |
| Irina Makogonova | Soviet Union | Volleyball | 1980 Summer | |
| Jaroslav Makohin | Czech Republic | Diving | 2000 Summer | |
| Jackson Makoi | South Sudan | Basketball | 2024 Summer | |
| Kazanga Makok | Democratic Republic of the Congo | Athletics | 1988 Summer | |
| Gaudencia Makokha | Kenya | Beach volleyball | 2020 Summer | |
| Jacqueline Makokha | Volleyball | 2000 Summer | |
| Zbigniew Makomaski | Poland | Athletics | 1960 Summer | |
| Seifu Makonnen | Ethiopia | Boxing | 1972 Summer | |
| Rutendo Makore | Zimbabwe | Football | 2016 Summer | |
| René Makosso | Republic of the Congo | Swimming | 1996 Summer | |
| Shiela Makoto | Zimbabwe | Football | 2016 Summer | |
| Yvonne Makouala | Republic of the Congo | Handball | 1980 Summer | |
| Felicité Makounawode | Central African Republic | Judo | 1992 Summer | |
| Vitaliy Makovetskiy | Soviet Union | Speed skating | 1988 Winter | |
| Igor Makovetsky | Belarus | 2002 Winter | |
| Semen Makovich | Russia | Swimming | 2016 Summer | |
| Jakub Makovička | Czech Republic | Rowing | 2004 Summer, 2008 Summer | |
| Stanisław Makowiecki | Poland | Wrestling | 1972 Summer | |
| Lucas Makowsky | Canada | Speed skating | 2010 Winter, 2014 Winter | |
| Katalin Makray | Hungary | Artistic gymnastics | 1964 Summer, 1968 Summer | |
| Andreas Makri | Cyprus | Shooting | 2020 Summer | |
| Marilena Makri | Sailing | 2020 Summer, 2024 Summer | |
| Spyros Makridakis | Greece | 1960 Summer | |
| Vasilios Makridis | Alpine skiing | 1964 Winter | |
| Alexander Makritski | Belarus | Ice hockey | 2002 Winter, 2010 Winter | |
| Nadezda Makroguzova | Russian Olympic Committee | Beach volleyball | 2020 Summer | |
| Evanthia Makrygianni | Greece | Artistic swimming | 2008 Summer | |
| Evangelos Makrygiannis | Swimming | 2020 Summer, 2024 Summer | |
| Kees Maks | Netherlands | Art competitions | 1928 Summer, 1948 Summer | |
| Aleksandra Maksakova | Russian Olympic Committee | Equestrian dressage | 2020 Summer | |
| Krzysztof Maksel | Poland | Track cycling | 2016 Summer, 2020 Summer | |
| Yana Maksimava | Belarus | Athletics | 2008 Summer, 2012 Summer | |
| Mikhail Maksimochkin | Russia | Ski jumping | 2014 Winter | |
| Dmitry Maksimov | Athletics | 2000 Summer | |
| Dmitry Maksimov | Judo | 2004 Summer | |
| Nikolay Maksimov | Russia, Kazakhstan | Water polo | 1996 Summer, 2000 Summer, 2004 Summer, 2012 Summer | |
| Vladimir Maksimov | Soviet Union | Handball | 1972 Summer, 1976 Summer | |
| Anastasia Maksimova | Russia, Russian Olympic Committee | Rhythmic gymnastics | 2016 Summer, 2020 Summer | |
| Gana Maksimova [ Wikidata ] | Russia | Artistic swimming | 1996 Summer | |
| Aleksandar Maksimović | Serbia | Wrestling | 2012 Summer | |
| Goran Maksimović | Yugoslavia, Independent Olympians, Serbia and Montenegro | Shooting | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Ivana Maksimović | Serbia | 2012 Summer, 2016 Summer | |
| Miloš Maksimović [ Wikidata ] | Australia | Water polo | 2024 Summer | |
| Dina Maksutova | Unified Team | Judo | 1992 Summer | |
| Alina Maksymenko | Ukraine | Rhythmic gymnastics | 2008 Summer, 2012 Summer | |
| Ivan Maksymov | Biathlon | 1994 Winter | |
| Beata Maksymow | Poland | Judo | 1992 Summer, 1996 Summer, 2000 Summer | |
| Valeria Maksyuta | Israel | Artistic gymnastics | 2012 Summer | |
| Ahmed Al-Maktoum | United Arab Emirates | Shooting | 2000 Summer, 2004 Summer, 2008 Summer | |
| Juma bin Dalmook Al Maktoum | 2012 Summer | |
| Latifa bint Ahmed Al Maktoum | Equestrian jumping | 2008 Summer | |
| Maitha bint Mohammed Al Maktoum | Taekwondo | 2008 Summer | |
| Saeed bin Maktoum bin Rashid Al Maktoum | Shooting | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Saidi Makula | Tanzania | Athletics | 2016 Summer | |
| Ngoni Makusha | Zimbabwe | 2020 Summer | |
| Ngonidzashe Makusha | 2008 Summer | |
| Bohdan Makuts | Soviet Union | Artistic gymnastics | 1980 Summer | |
| Isaac Makwala | Botswana | Athletics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Dickson Makwaza | Zambia | Football | 1980 Summer | |
| Jessica Makwenda | Malawi | Swimming | 2020 Summer | |
| Robert Makzoumi | Egypt | Basketball | 1948 Summer | |
| Pavol Maľa | Czechoslovakia | Athletics | 1936 Summer | |
| Germana Malabarba | Italy | Artistic gymnastics | 1928 Summer | |
| Emma Malabuyo | Philippines | 2024 Summer | |
| Paolo Malacarne | Italy | Canoe sprint | 1972 Summer | |
| Piotr Małachowski | Poland | Athletics | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Romana Maláčová | Czech Republic | 2016 Summer, 2020 Summer | |
| Nazanin Malaei | Iran | Rowing | 2020 Summer | |
| Natalia Málaga | Peru | Volleyball | 1980 Summer, 1984 Summer, 1988 Summer, 2000 Summer | |
| Emina Malagich | Russian Olympic Committee | Short track speed skating | 2018 Winter | |
| Marcello Malagoli | Italy | Baseball | 2004 Summer | |
| Moses Malagu | Nigeria | Boxing | 1992 Summer | |
| Sanja Malagurski | Serbia | Volleyball | 2008 Summer | |
| Svetlana Malahova-Shishkina | Kazakhstan | Cross country skiing | 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter | |
| Pinye Malaibi | Papua New Guinea | Weightlifting | 1988 Summer | |
| Wongsak Malaipun | Thailand | Shooting | 1976 Summer | |
| Hedaya Malak | Egypt | Taekwondo | 2012 Summer, 2016 Summer, 2020 Summer | |
| Michal Malák [ Wikidata ] | Slovakia | Cross country skiing | 2006 Winter, 2010 Winter | |
| Waldemar Malak | Poland | Weightlifting | 1992 Summer | |
| Anastasiya Malakanava | Belarus | Rhythmic gymnastics | 2020 Summer | |
| Bishnu Malakar | Nepal | Boxing | 1980 Summer | |
| Khristo Malakchiev | Bulgaria | Equestrian eventing | 1936 Summer | |
| Raimkul Malakhbekov | Russia | Boxing | 1996 Summer, 2000 Summer | |
| Vladimir Malakhov | Unified Team, Russia | Ice hockey | 1992 Winter, 2002 Winter | |
| Julienne Malaki | Republic of the Congo | Handball | 1980 Summer | |
| Adel Ahmed Malalla | Qatar | Football | 1984 Summer | |
| Gaston Malam | Cameroon | Athletics | 1972 Summer | |
| Ilias Malamas | Greece | Swimming | 1984 Summer, 1988 Summer | |
| Giorgio Malan | Italy | Modern pentathlon | 2024 Summer | |
| Rosa Malango | Equatorial Guinea | Athletics | 1988 Summer | |
| Meli Malani | Fiji | Swimming | 2016 Summer | |
| Lajos von Malanotti | Hungary | Equestrian jumping | 1928 Summer | |
| Feliks Malanowski | Poland | Athletics | 1928 Summer | |
| Mourad Malaoui | Algeria | Volleyball | 1992 Summer | |
| Arturo Malaquias | Mexico | Athletics | 2012 Summer | |
| Joanne Malar | Canada | Swimming | 1992 Summer, 1996 Summer, 2000 Summer | |
| Halina Malashenka [ Wikidata ] | Belarus | Rhythmic gymnastics | 1996 Summer | |
| Aliaksandr Malashevich | Athletics | 2004 Summer | |
| Teodoro Malasig | Philippines | 1936 Summer | |
| Francesco Malatesta | Italy | Track cycling | 1928 Summer | |
| Guglielmo Malatesta | 1908 Summer | |
| Giusi Malato | Water polo | 2004 Summer | |
| Aurélie Malaussena | France | Artistic gymnastics | 2012 Summer | |
| Jean-Pierre Malavasi | Boxing | 1976 Summer | |
| Elías Malavé | Venezuela | Archery | 2012 Summer, 2016 Summer | |
| Sonia Malavisi | Italy | Athletics | 2016 Summer | |
| Suzanne Malaxos | Australia | 1996 Summer | |
| Khan Malaythong | United States | Badminton | 2008 Summer | |
| Miko Mälberg | Estonia | Swimming | 2008 Summer | |
| Sophie Malbranque | France | Athletics | 1980 Summer | |
| Carolina Malchair | Spain | Rhythmic gymnastics | 2000 Summer | |
| Günter Malcher | Germany | Athletics | 1960 Summer | |
| Ryszard Malcherczyk | Poland | 1956 Summer, 1960 Summer | |
| Teodora Malcheva | Bulgaria | Cross country skiing | 2010 Winter, 2014 Winter | |
| Emilio Malchiodi | Argentina | Athletics | 1948 Summer | |
| Maic Malchow | East Germany | Track cycling | 1988 Summer | |
| Tom Malchow | United States | Swimming | 1996 Summer, 2000 Summer, 2004 Summer | |
| Galina Malchugina | Soviet Union, Unified Team, Russia | Athletics | 1988 Summer, 1992 Summer, 1996 Summer | |
| Barry Malcolm | Australia | Field hockey | 1960 Summer | |
| Christian Malcolm | Great Britain | Athletics | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Bapoo Malcolm Sr. | India | Road cycling | 1948 Summer | |
| Malcom | Brazil | Football | 2020 Summer | |
| Calixto Malcom | Panama | Basketball | 1968 Summer | |
| Lucas Malcotti | Switzerland | Fencing | 2020 Summer | |
| Jakub Malczewski | Poland | Alpine skiing | 1992 Winter | |
| Rafał Malczewski | Art competitions | 1932 Summer, 1936 Summer | |
| Bárbara Malda | Spain | Field hockey | 2004 Summer, 2008 Summer | |
| Federico Nilo Maldini | Italy | Shooting | 2024 Summer | |
| Angel Maldonado | Mexico | Swimming | 1948 Summer | |
| Claudio Maldonado | Chile | Football | 2000 Summer | |
| Denil Maldonado | Honduras | 2020 Summer | |
| Dora Maldonado | Judo | 1996 Summer | |
| Erwin Maldonado | Venezuela | Marathon swimming | 2008 Summer, 2012 Summer, 2016 Summer | |
| Orlando Maldonado | Puerto Rico | Boxing | 1976 Summer | |
| Roberto Maldonado | Fencing | 1972 Summer | |
| Víctor Maldonado | Venezuela | Athletics | 1960 Summer, 1964 Summer, 1968 Summer | |
| Mindaugas Maldonis | Lithuania | Canoe sprint | 2020 Summer, 2024 Summer | |
| Simonas Maldonis [ Wikidata ] | 2024 Summer | |
| Kitty van Male | Netherlands | Field hockey | 2012 Summer, 2016 Summer | |
| Tim Male | Great Britain | Rowing | 2004 Summer | |
| Czesław Malec | Poland | Basketball | 1968 Summer | |
| Jiří Malec | Czechoslovakia | Ski jumping | 1988 Winter | |
| Vedrana Malec | Croatia | Cross country skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Josef Maleček | Czechoslovakia | Ice hockey | 1924 Winter, 1928 Winter, 1936 Winter | |
| Václav Maleček | Czech Republic | Rowing | 2004 Summer | |
| Aleksander Małecki | Poland | Fencing | 1928 Summer | |
| Dariusz Małecki | Field hockey | 2000 Summer | |
| Marek Małecki | Equestrian eventing | 1972 Summer | |
| Leonidas Maleckis | Lithuania | Boxing | 1992 Summer | |
| Katerina Maleeva | Bulgaria | Tennis | 1988 Summer, 1992 Summer, 1996 Summer | |
| Magdalena Maleeva | 1992 Summer, 1996 Summer, 2004 Summer | |
| Manuela Maleeva | Bulgaria, Switzerland | 1988 Summer, 1992 Summer | |
| Anton Malej | Yugoslavia | Artistic gymnastics | 1928 Summer | |
| Daniel Málek | Czech Republic | Swimming | 1996 Summer, 2000 Summer, 2004 Summer | |
| Miroslav Málek | Czechoslovakia | Artistic gymnastics | 1948 Summer | |
| Mirosław Małek | Poland | Sailing | 1996 Summer | |
| Paweł Małek | Shooting | 1968 Summer | |
| Petr Málek | Czechoslovakia, Czech Republic | 1988 Summer, 2000 Summer | |
| Davoud Maleki | Iran | Weightlifting | 1976 Summer | |
| Hamed Malekmohammadi | Judo | 2004 Summer, 2008 Summer | |
| Zakayo Malekwa | Tanzania | Athletics | 1980 Summer, 1984 Summer, 1988 Summer | |
| Evance Malenga [ Wikidata ] | Malawi | Boxing | 1988 Summer | |
| Mladenka Malenica | Yugoslavia, Croatia | Shooting | 1988 Summer, 1996 Summer, 2000 Summer | |
| Aleksandar Malenko | North Macedonia | Swimming | 1996 Summer, 2004 Summer | |
| Tercious Malepe | South Africa | Football | 2016 Summer, 2020 Summer | |
| Leslie Malerich | Italy | Softball | 2004 Summer | |
| Ernests Mālers | Latvia | Track cycling | 1928 Summer | |
| Danny Males | Australia | Boxing | 1960 Summer | |
| Tamara Malešev | Independent Olympians | Athletics | 1992 Summer | |
| Tijana Malešević | Serbia | Volleyball | 2016 Summer | |
| Eric Maleson | Brazil | Bobsleigh | 2002 Winter | |
| Louis Malespina | France | Art competitions | 1928 Summer, 1932 Summer | |
| Angela Malestein | Netherlands | Handball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Valérie Malet | France | Shooting | 1988 Summer | |
| Alexander Maletin | Russia | Boxing | 2000 Summer, 2004 Summer | |
| Holger Maletz | West Germany | Figure skating | 1988 Winter | |
| Doris Maletzki | East Germany | Athletics | 1976 Summer | |
| Radovan Malević | Yugoslavia | Volleyball | 1980 Summer | |
| Ewa Malewicka | Poland | Speed skating | 1976 Winter | |
| Anneli Maley | Australia | 3x3 basketball | 2024 Summer | |
| Kynan Maley | Canoe slalom | 2012 Summer | |
| Aleksandr Maleyev | Soviet Union | Artistic gymnastics | 1972 Summer | |
| Georgi Malezanov | Bulgaria | Boxing | 1952 Summer | |
| Georges Malfait | France | Athletics | 1908 Summer, 1912 Summer | |
| Michele Malfatti | Italy | Speed skating | 2022 Winter | |
| Brian Malfesi | Canada | Canoe sprint | 2020 Summer | |
| Henry Malfroy | France | Art competitions | 1928 Summer | |
| Sylvia Malgadey-Forgrave | Canada | Athletics | 1984 Summer | |
| Denis Malgin | Switzerland | Ice hockey | 2022 Winter | |
| Joaquim Malgosa | Spain | Field hockey | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Juan Malgosa | 1984 Summer, 1988 Summer | |
| Santiago Malgosa | 1980 Summer, 1984 Summer | |
| Louisette Malherbaud | France | Fencing | 1948 Summer | |
| Arnaud Malherbe | South Africa | Athletics | 1996 Summer, 2000 Summer, 2004 Summer | |
| Bernard Malherbe | France | Boxing | 1968 Summer | |
| Stephanie Malherbe | South Africa | Football | 2016 Summer | |
| Manisha Malhotra | India | Tennis | 2000 Summer | |
| Andreja Mali | Slovenia | Biathlon, Cross country skiing | 2002 Winter, 2006 Winter, 2010 Winter | |
| Nada Mali | Canoe slalom | 2000 Summer, 2004 Summer | |
| Ongeziwe Mali | South Africa | Field hockey | 2024 Summer | |
| Ihor Maliar | Ukraine | Figure skating | 1994 Winter | |
| Zbigniew Malicki | Poland | Sailing | 1980 Summer | |
| Jacob Maliekal | South Africa | Badminton | 2016 Summer | |
| Catherine Maliev-Aviolat | Switzerland | Diving | 1992 Summer, 2000 Summer | |
| Policarp Malîhin | Romania | Canoe sprint | 1976 Summer | |
| Abdul Malik | Pakistan | Athletics | 1960 Summer | |
| Anshu Malik | India | Wrestling | 2020 Summer, 2024 Summer | |
| Aziz Malik | Pakistan | Field hockey | 1948 Summer, 1952 Summer | |
| Janusz Malik | Poland | Ski jumping | 1984 Winter | |
| Marek Malík | Czech Republic | Ice hockey | 2006 Winter | |
| Mohamed Ajmal Malik | Kenya | Field hockey | 1968 Summer, 1972 Summer | |
| Monika Malik | India | 2016 Summer, 2020 Summer | |
| Muhammad Arshad Malik | Pakistan | Weightlifting | 1972 Summer, 1976 Summer | |
| Muhammad Asad Malik | Field hockey | 1964 Summer, 1968 Summer, 1972 Summer | |
| Muhammad Shafqat Malik | 1996 Summer, 2000 Summer | |
| Nalin Malik | India | Swimming | 1932 Summer | |
| Nazar Muhammad Khan Malik | Pakistan | Athletics | 1948 Summer | |
| Sakshi Malik | India | Wrestling | 2016 Summer | |
| Sonam Malik | 2020 Summer | |
| Štefan Malík | Slovakia | Athletics | 1996 Summer, 2000 Summer | |
| Vladimir Malik | Soviet Union | Rowing | 1960 Summer | |
| Shmuel Malika-Aharon | Israel | Football | 1968 Summer | |
| Ibrahim Maliki [ Wikidata ] | Niger | Swimming | 2004 Summer | |
| Va'a Apelu Maliko | Samoa | Rugby sevens | 2024 Summer | |
| Andrey Malikov | Soviet Union | Speed skating | 1976 Winter | |
| Asif Malikov | Azerbaijan | Weightlifting | 1996 Summer, 2004 Summer | |
| Barbora Malíková | Czech Republic | Athletics | 2020 Summer | |
| Zuzana Malíková | Slovakia | 2004 Summer, 2008 Summer | |
| Markus Malin | Finland | Snowboarding | 2010 Winter, 2014 Winter, 2018 Winter | |
| Andrzej Malina | Poland | Wrestling | 1988 Summer | |
| Libor Malina | Czech Republic | Athletics | 2000 Summer, 2004 Summer | |
| Tom Malina | Sailing | 2004 Summer | |
| André Malinet | France | Figure skating | 1924 Winter | |
| Alex Malinga | Uganda | Athletics | 2000 Summer, 2008 Summer | |
| Ayanda Malinga | South Africa | Rugby sevens | 2024 Summer | |
| Tatiana Malinina | Uzbekistan | Figure skating | 1998 Winter, 2002 Winter | |
| Antonín Malinkovič | Czechoslovakia | Rowing | 1952 Summer | |
| Ofelia Malinov | Italy | Volleyball | 2020 Summer | |
| Konstantin Malinovskiy [ Wikidata ] | Kazakhstan | Shooting | 2024 Summer | |
| Bronisław Malinowski | Poland | Athletics | 1972 Summer, 1976 Summer, 1980 Summer | |
| Merlin Malinowski | Canada | Ice hockey | 1988 Winter | |
| Robert Malinowski | Poland | Volleyball | 1980 Summer | |
| Marcin Maliński | Swimming | 1992 Summer, 1996 Summer | |
| Josef Malínský | Czechoslovakia | Biathlon | 1976 Winter | |
| Stefano Malinverni | Italy | Athletics | 1980 Summer | |
| Bernt Malion | Sweden | Basketball | 1980 Summer | |
| Jean Malissart | Belgium | Water polo | 1928 Summer | |
| Paul Malisch | Germany | Swimming | 1912 Summer | |
| Mária Mališová | Czechoslovakia | Volleyball | 1972 Summer | |
| Georges Malissard | France | Art competitions | 1932 Summer | |
| Xavier Malisse | Belgium | Tennis | 2004 Summer | |
| Anna Maliszewska | Poland | Modern pentathlon | 2016 Summer, 2020 Summer, 2024 Summer | |
| Natalia Maliszewska | Short track speed skating | 2018 Winter, 2022 Winter | |
| Patrycja Maliszewska | 2010 Winter, 2014 Winter, 2022 Winter | |
| Werner Malitz | Germany | Track cycling | 1956 Summer | |
| Bernard Malivoire | France | Rowing | 1952 Summer | |
| Philippe Malivoire | 1964 Summer | |
| Bayram Malkan | Turkey | Boxing | 2020 Summer | |
| Göran Malkar | Sweden | Fencing | 1976 Summer, 1980 Summer | |
| El Mehdi Malki | Morocco | Judo | 2012 Summer | |
| Mohammed Al-Malki | Oman | Athletics | 1984 Summer, 1988 Summer, 1992 Summer | |
| Noor Al-Malki | Qatar | 2012 Summer | |
| Evgeni Malkin | Russia | Ice hockey | 2006 Winter, 2010 Winter, 2014 Winter | |
| Terry Malkin | Great Britain | Speed skating | 1960 Winter, 1964 Winter | |
| Freydoun Malkom | Iran | Fencing | 1900 Summer | |
| Igor Malkov | Soviet Union | Speed skating | 1984 Winter | |
| Vladimir Malkov | Russia | Badminton | 2016 Summer | |
| Jan Małkowiak | Poland | Field hockey | 1952 Summer | |
| Maksymilian Małkowiak | 1952 Summer | |
| Sofia Malkoyeorgu [ Wikidata ] | Greece | Artistic swimming | 2024 Summer | |
| Edi Mall | Austria | Alpine skiing | 1948 Winter | |
| Uwe Mall | Switzerland | Handball | 1984 Summer | |
| Mohamed El-Mallah | Egypt | Field hockey | 2004 Summer | |
| Oveis Mallah | Iran | Wrestling | 1992 Summer | |
| Bilal Mallakh | Morocco | Breaking | 2024 Summer | |
| Blai Mallarach | Spain | Water polo | 2012 Summer, 2016 Summer, 2020 Summer | |
| Kamalaldin Mallash | Qatar | Handball | 2016 Summer | |
| Jean-Yves Mallat | Lebanon | Athletics | 1984 Summer | |
| Fabian Malleier | Italy | Luge | 2018 Winter | |
| Erkki Mallenius | Finland | Boxing | 1952 Summer | |
| José Malleo | Argentina | Football | 1964 Summer | |
| Peg Mallery | United States | Rowing | 1988 Summer | |
| Karnam Malleswari | India | Weightlifting | 2000 Summer, 2004 Summer | |
| Grégory Mallet | France | Swimming | 2008 Summer, 2012 Summer, 2016 Summer | |
| Joseph Mallet [ Wikidata ] | Track cycling | 1900 Summer | |
| Neal Mallett | Great Britain | Fencing | 1980 Summer, 1984 Summer | |
| Taryn Mallett | South Africa | Field hockey | 2020 Summer | |
| Muhammad Naqi Mallick | Pakistan | Track cycling, Road cycling | 1948 Summer, 1952 Summer, 1956 Summer | |
| Emmanouil Mallidis | Greece | Swimming | 1936 Summer | |
| René Mallieux | Belgium | Field hockey | 1928 Summer | |
| Fred Mallin | Great Britain | Boxing | 1928 Summer | |
| Harry Mallin | 1920 Summer, 1924 Summer | |
| Carl Malling | Denmark | Field hockey | 1928 Summer, 1936 Summer | |
| Auriane Mallo-Breton | France | Fencing | 2016 Summer, 2024 Summer | |
| Martín Mallo | Argentina | Equestrian jumping | 1984 Summer | |
| Jordan Malloch | United States | Canoe sprint | 2000 Summer, 2004 Summer | |
| Jo Mallon | Netherlands | Athletics | 1928 Summer | |
| George Mallory | Great Britain | Alpinism | 1924 Winter | |
| Molla Mallory | Norway | Tennis | 1912 Summer, 1924 Summer | |
| Marti Malloy | United States | Judo | 2012 Summer, 2016 Summer | |
| Norman Malloy | Canada | Ice hockey | 1932 Winter | |
| Miguel Mallqui | Peru | Athletics | 1996 Summer | |
| Arthur Mallwitz | Germany | 1908 Summer | |
| Lenigret Mallwitz | Art competitions | 1928 Summer | |
| Franziska Mally | Austria | Swimming | 1936 Summer | |
| Zenon Małłysko | Poland | Modern pentathlon | 1928 Summer | |
| Jeanette Malm | Sweden | 2000 Summer | |
| Ragnar Malm | Road cycling | 1912 Summer, 1920 Summer, 1924 Summer | |
| Sven Malm | Athletics | 1920 Summer | |
| Theodor Malm | Football | 1908 Summer | |
| Cristian Malmagro | Spain | Handball | 2008 Summer | |
| Algot Malmberg | Sweden | Wrestling | 1928 Summer | |
| Caj Malmberg | Finland | 1968 Summer | |
| Erik Malmberg | Sweden | 1924 Summer, 1928 Summer, 1932 Summer | |
| Hanne Malmberg | Denmark | Track cycling | 1992 Summer | |
| Ove Malmberg | Sweden | Ice hockey | 1956 Winter | |
| Jarl Malmgren | Finland | Football | 1936 Summer | |
| Jonna Malmgren | Sweden | Wrestling | 2024 Summer | |
| Iivari Malmikoski | Finland | Boxing | 1952 Summer | |
| Heikki Malmivirta | Athletics | 1924 Summer | |
| Lars Malmkvist | Sweden | Wrestling | 1976 Summer, 1980 Summer | |
| Walter Malmquist | United States | Nordic combined, Ski jumping | 1976 Winter, 1980 Winter | |
| Håkan Malmrot | Sweden | Swimming | 1920 Summer | |
| Bengt Malmsten | Speed skating | 1952 Winter, 1956 Winter | |
| Gustaf Malmsten | Athletics | 1912 Summer | |
| Staffan Malmsten | Canoe sprint | 1996 Summer | |
| Eva-Charlotte Malmström | Athletics | 1972 Summer | |
| Gustaf Malmström | Wrestling | 1908 Summer, 1912 Summer | |
| Hans Malmstrøm | Denmark | Swimming | 1936 Summer | |
| Karl Malmström | Sweden | Diving | 1908 Summer | |
| Sune Malmström | Tennis | 1920 Summer | |
| Carmen Malo | Ecuador | Shooting | 2000 Summer, 2004 Summer, 2008 Summer | |
| Juan Malo | Spain | 1960 Summer | |
| Ivana Malobabic [ Wikidata ] | Croatia | Table tennis | 2024 Summer | |
| John Malois | Canada | Track cycling | 1992 Summer | |
| Ioannis Malokinis | Greece | Swimming | 1896 Summer | |
| František Maloň | Czechoslovakia | Rowing | 1936 Summer | |
| Ambrosia Malone | Australia | Field hockey | 2020 Summer | |
| Anne Marie Malone | Canada | Athletics | 1984 Summer | |
| Brody Malone | United States | Artistic gymnastics | 2020 Summer, 2024 Summer | |
| Casey Malone | Athletics | 2004 Summer, 2008 Summer | |
| Chantel Malone | British Virgin Islands | 2020 Summer | |
| David Malone | Ireland | Shooting | 2000 Summer | |
| Jessica Malone | Australia | Judo | 2004 Summer | |
| Jordan Malone | United States | Short track speed skating | 2010 Winter, 2014 Winter | |
| Joseph Malone | Ireland | Archery | 1988 Summer | |
| Karl Malone | United States | Basketball | 1992 Summer, 1996 Summer | |
| Ryan Malone | Ice hockey | 2010 Winter | |
| Tommy Malone | Ireland | Basketball | 1948 Summer | |
| Maggie Malone-Hardin | United States | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Maicel Malone-Wallace | 1996 Summer | |
| Alex Maloney | New Zealand | Sailing | 2016 Summer, 2020 Summer | |
| Brad Maloney | Australia | Football | 1992 Summer | |
| Conor Maloney | Ireland | Canoe sprint | 1996 Summer | |
| Johnny Maloney | Great Britain | Boxing | 1952 Summer | |
| Katie Maloney | United States | Rowing | 2000 Summer | |
| Kristen Maloney | Artistic gymnastics | 2000 Summer | |
| Shafiqua Maloney | Saint Vincent and the Grenadines | Athletics | 2020 Summer, 2024 Summer | |
| Dival Malonga | Republic of the Congo | Boxing | 2016 Summer | |
| Dominique Malonga | France | Basketball | 2024 Summer | |
| Madeleine Malonga | Judo | 2020 Summer, 2024 Summer | |
| Jacques Maloubier | Art competitions | 1948 Summer | |
| Nick Malouf | Australia | Rugby sevens | 2016 Summer, 2020 Summer, 2024 Summer | |
| Robert Malouf | Canada | Boxing | 1952 Summer | |
| Ali Maloumat | Iran | Judo | 2008 Summer | |
| Stoyko Malov | Bulgaria | Wrestling | 1964 Summer | |
| Dušan Malovec | Czechoslovakia | Athletics | 1980 Summer | |
| Zsuzsa Malovecz | Hungary | 1988 Summer | |
| Iryna Malovichko | Ukraine | Shooting | 2020 Summer, 2024 Summer | |
| Margo Malowney | Canada | Beach volleyball | 1996 Summer | |
| Joe Maloy | United States | Triathlon | 2016 Summer | |
| Vladimir Malozemlin | Soviet Union | Athletics | 1980 Summer | |
| Malcolm Malpass | Great Britain | Rowing | 1968 Summer | |
| Zara Malseed | Ireland | Field hockey | 2020 Summer | |
| Jessica Malsiner [ Wikidata ] | Italy | Ski jumping | 2022 Winter | |
| Lara Malsiner | 2018 Winter | |
| Manuela Malsiner | 2018 Winter | |
| Wenceslau Malta | Brazil | Modern pentathlon | 1956 Summer, 1960 Summer | |
| Dominique Maltais | Canada | Snowboarding | 2006 Winter, 2010 Winter, 2014 Winter | |
| Emma Maltais | Ice hockey | 2022 Winter | |
| Valérie Maltais | Short track speed skating, Speed skating | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Alexander Maltsev | Soviet Union | Ice hockey | 1972 Winter, 1976 Winter, 1980 Winter | |
| Artem Maltsev | Russian Olympic Committee | Cross country skiing | 2022 Winter | |
| Kevin Maltsev | Estonia | Ski jumping | 2018 Winter, 2022 Winter | |
| Oleg Maltsev | Unified Team, Russia | Judo | 1992 Summer, 1996 Summer | |
| Jekaterina Maltseva [ Wikidata ] | Russian Olympic Committee | Freestyle skiing | 2022 Winter | |
| Svetlana Maltseva | Kazakhstan | Ice hockey | 2002 Winter | |
| Yekaterina Maltseva | 2002 Winter | |
| Evanthia Maltsi | Greece | Basketball | 2004 Summer | |
| Katharine Emma Maltwood | Great Britain | Art competitions | 1924 Summer | |
| Khaman Maluach | South Sudan | Basketball | 2024 Summer | |
| Oļegs Maļuhins | Latvia | Biathlon, Cross country skiing | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter, 2006 Winter | |
| Ieva Maļuka | Swimming | 2020 Summer, 2024 Summer | |
| Anna Malukhina | Soviet Union, Unified Team, Russia | Shooting | 1988 Summer, 1992 Summer, 1996 Summer | |
| Simone Malusa | Italy | Snowboarding | 2006 Winter, 2010 Winter | |
| Jerzy Maluśki | Poland | Athletics | 1968 Summer | |
| Antonio Malvassi | Argentina | Track cycling | 1928 Summer | |
| Sílvio Malvezi | Brazil | Basketball | 1984 Summer | |
| Angelo Malvicini | Italy | Athletics | 1924 Summer | |
| Ángel Malvicino | Argentina | Rowing | 1948 Summer | |
| Josef Malý | Czechoslovakia | Artistic gymnastics | 1920 Summer | |
| Leandro Maly | Argentina | Volleyball | 1996 Summer, 2000 Summer | |
| Paula Maly | Austria | Art competitions | 1948 Summer | |
| Vladimir Malyavin | Turkmenistan, Russia | Athletics | 1996 Summer, 2000 Summer, 2008 Summer | |
| Daria Malygina | Russia | Volleyball | 2016 Summer | |
| Mitchel Malyk | Canada | Luge | 2014 Winter, 2018 Winter | |
| Jiří Malysa | Czech Republic | Athletics | 1996 Summer, 2000 Summer, 2004 Summer | |
| Stanisław Małysa | Poland | Weightlifting | 1988 Summer | |
| Hanna Malyshchyk | Belarus | Athletics | 2016 Summer, 2020 Summer | |
| Yury Malyshev | Soviet Union | Speed skating | 1960 Winter | |
| Yury Malyshev | Rowing | 1972 Summer | |
| Yekaterina Malysheva | Russia | Speed skating | 2010 Winter, 2014 Winter | |
| Dmitry Malyshko | Biathlon | 2014 Winter | |
| Andrzej Małysiak | Poland | Ice hockey | 1980 Winter | |
| Adam Małysz | Ski jumping | 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter | |
| Wiesław Małyszko | Boxing | 1992 Summer | |
| Aleksandr Malyutin | Soviet Union | Athletics | 1968 Summer | |
| Martin Malyutin | Russian Olympic Committee | Swimming | 2020 Summer | |
| Claudia Malzahn | Germany | Judo | 2012 Summer | |
| Luise Malzahn | 2016 Summer | |
| Anton Mamaev | Russian Olympic Committee | Snowboarding | 2018 Winter | |
| Takhir Mamashayev | Kazakhstan | Athletics | 2008 Summer | |
| Maryia Mamashuk | Belarus | Wrestling | 2016 Summer | |
| Viktor Mamatov | Soviet Union | Biathlon | 1968 Winter, 1972 Winter | |
| Natalya Mamatova | Uzbekistan | Taekwondo | 2012 Summer | |
| Nursultan Mamayev | Kazakhstan | 2012 Summer | |
| Zhanna Mamazhanova | Athletics | 2020 Summer, 2024 Summer | |
| Clifford Sibusiso Mamba | Eswatini | 1984 Summer | |
| Priscilla Mamba | 2000 Summer | |
| Hugo Mamba-Schlick | Cameroon | 2008 Summer | |
| Asset Mambetov | Kazakhstan | Wrestling | 2004 Summer, 2008 Summer | |
| George Mambosasa | Malawi | Athletics | 1984 Summer, 1988 Summer | |
| Gina Mambrú | Dominican Republic | Volleyball | 2012 Summer | |
| Eli Mambwe | Zambia | Badminton | 2008 Summer | |
| Roberts Mamčics | Latvia | Ice hockey | 2022 Winter | |
| Mohamed Mamdouh | Egypt | Swimming | 2008 Summer | |
| Geidar Mamedaliyev | Russia | Wrestling | 2004 Summer | |
| Rashid Mammadbeyov | Soviet Union | 1952 Summer | |
| Fernando Mamede | Portugal | Athletics | 1972 Summer, 1976 Summer, 1984 Summer | |
| Adalat Mamedov | Azerbaijan | Boxing | 1996 Summer | |
| Chary Mamedov | Turkmenistan | Athletics | 2000 Summer | |
| Chingiz Mamedov | Kyrgyzstan | Judo | 2012 Summer | |
| Gabil Mamedov | Russian Olympic Committee | Boxing | 2020 Summer | |
| Amaliya Mamedova | Uzbekistan | Rhythmic gymnastics | 2024 Summer | |
| Elena Mamedova [ Wikidata ] | Russian Olympic Committee | Bobsleigh | 2022 Winter | |
| Sakina Mamedova | Uzbekistan | Shooting | 2012 Summer | |
| Nihad Mameledžija | Bosnia and Herzegovina | Bobsleigh | 1998 Winter | |
| Mikhail Mamiashvili | Soviet Union | Wrestling | 1988 Summer | |
| Marko Mamić | Croatia | Handball | 2016 Summer | |
| Lisa Mamié | Switzerland | Swimming | 2020 Summer, 2024 Summer | |
| Bogusław Mamiński | Poland | Athletics | 1980 Summer, 1988 Summer | |
| Elvin Mamishzada | Azerbaijan | Boxing | 2012 Summer, 2016 Summer | |
| Tadashi Mamiya | Japan | Art competitions | 1936 Summer | |
| Yuka Mamiya | Basketball | 2016 Summer | |
| Gultaj Mammadaliyeva | Azerbaijan | Judo | 2024 Summer | |
| Elnur Mammadli | 2008 Summer, 2012 Summer | |
| Aghasi Mammadov | Turkey, Azerbaijan | Boxing | 2000 Summer, 2004 Summer | |
| Elkhan Mammadov | Azerbaijan | Fencing | 1996 Summer | |
| Elkhan Mammadov | Judo | 2008 Summer, 2012 Summer | |
| Ilgar Mammadov | Soviet Union, Unified Team, Russia | Fencing | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Murad Mammadov | Azerbaijan | Wrestling | 2024 Summer | |
| Samir Mammadov | Boxing | 2008 Summer | |
| Teymur Mammadov | 2012 Summer, 2016 Summer | |
| Próspero Mammana | Argentina | Wrestling | 1952 Summer | |
| Mergen Mämmedow | Turkmenistan | Athletics | 2012 Summer, 2020 Summer | |
| Koceila Mammeri | Algeria | Badminton | 2024 Summer | |
| Tanina Mammeri | 2024 Summer | |
| Bernard Mammes | United States | Track cycling | 1932 Summer | |
| Mamo Wolde | Ethiopia | Athletics | 1956 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| Józef Mamoń | Poland | Football | 1952 Summer | |
| Patrícia Mamona | Portugal | Athletics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Vladimirs Mamonovs | Latvia | Ice hockey | 2006 Winter | |
| Andrey Mamontov | Belarus | Diving | 2004 Summer | |
| Mariama Mamoudou Ittatou | Niger | Athletics | 2016 Summer | |
| Djingarey Mamoudou | Boxing | 1988 Summer | |
| Driss El-Mamoun | Morocco | Judo | 1988 Summer | |
| Marella Mamoun | Syria | Swimming | 2000 Summer | |
| Aikaterini Mamouti | Greece | Artistic gymnastics | 1996 Summer | |
| Grigol Mamrikishvili | Georgia | Judo | 2004 Summer | |
| Margarita Mamun | Russia | Rhythmic gymnastics | 2016 Summer | |
| Tibor Mamusich | Hungary | Rowing | 1936 Summer | |
| Sherzod Mamutov | Uzbekistan | Fencing | 2020 Summer | |
| Svitlana Mamyeyeva | Ukraine | Athletics | 2008 Summer | |
| Maulen Mamyrov | Kazakhstan | Wrestling | 1996 Summer, 2000 Summer | |