| Name | Nation | Sport | Games | Notes |
|---|
| Cecil McKaig [ Wikidata ] | Great Britain | Track cycling | 1908 Summer | |
| Jonathan McKain | Australia | Football | 2004 Summer | |
| Antonio McKay | United States | Athletics | 1984 Summer, 1988 Summer | |
| Caeli McKay | Canada | Diving | 2020 Summer, 2024 Summer | |
| David McKay | Wrestling | 1984 Summer, 1988 Summer | |
| Kevin McKay | Great Britain | Athletics | 1992 Summer, 1996 Summer | |
| Les McKay | Australia | Water polo | 1948 Summer | |
| Martin McKay | Ireland | Track cycling | 1960 Summer | |
| Michael McKay | Jamaica | Road cycling | 1992 Summer | |
| Mike McKay | Australia | Rowing | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Mike McKay | Basketball | 1992 Summer | |
| Natasha McKay | Great Britain | Figure skating | 2022 Winter | |
| Tom McKay | Canada | Athletics | 1924 Summer | |
| Olive McKean | United States | Swimming | 1936 Summer | |
| Tom McKean | Great Britain | Athletics | 1988 Summer, 1992 Summer | |
| Les McKeand | Australia | 1948 Summer | |
| John McKechenneay | Canada | 1924 Summer | |
| Neil McKechnie | Great Britain | Swimming | 1956 Summer | |
| Anton McKee | Iceland | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Charles McKee | United States | Sailing | 1988 Summer, 2000 Summer | |
| John McKee | Ireland | Field hockey | 2024 Summer | |
| Jonathan McKee | United States | Sailing | 1984 Summer, 2000 Summer | |
| Kelly McKee | Canada | Water polo | 2020 Summer | |
| Paul McKee | Ireland | Athletics | 2000 Summer | |
| Tim McKee | United States | Swimming | 1972 Summer, 1976 Summer | |
| Ed McKeever | Great Britain | Canoe sprint | 2012 Summer | |
| Robin McKeever | Canada | Cross country skiing | 1998 Winter | |
| Rowan McKellar | Great Britain | Rowing | 2020 Summer, 2024 Summer | |
| Gordon McKellen | United States | Figure skating | 1972 Winter | |
| Donald McKellow | Great Britain | Track cycling | 1952 Summer | |
| Hayley McKelvey | Canada | Water polo | 2020 Summer, 2024 Summer | |
| Ned McKendry | Australia | Swimming | 2012 Summer | |
| Herb McKenley | Jamaica | Athletics | 1948 Summer, 1952 Summer | |
| Jack McKenna | Great Britain | 1924 Summer | |
| Lesley McKenna | Snowboarding | 2002 Winter, 2006 Winter, 2010 Winter | |
| Alice McKennis Duran | United States | Alpine skiing | 2010 Winter, 2018 Winter | |
| Angus McKenzie | Great Britain | Fencing | 1960 Summer | |
| Ashley McKenzie | Great Britain, Jamaica | Judo | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Basil McKenzie | Jamaica | Athletics | 1948 Summer | |
| Clinton McKenzie | Great Britain | Boxing | 1976 Summer | |
| Dave McKenzie | New Zealand | Athletics | 1968 Summer, 1972 Summer | |
| David McKenzie | Australia | Fencing | 1956 Summer, 1960 Summer, 1964 Summer | |
| Don McKenzie | United States | Swimming | 1968 Summer | |
| Donnie McKenzie | Great Britain | Fencing | 1988 Summer, 1992 Summer | |
| Eleanor McKenzie | Canada | Athletics | 1952 Summer | |
| Ewan McKenzie | Great Britain | Cross country skiing | 1988 Winter | |
| George McKenzie | Boxing | 1920 Summer | |
| Gordon McKenzie | United States | Athletics | 1956 Summer, 1960 Summer | |
| Grace McKenzie | Great Britain | Swimming | 1920 Summer, 1924 Summer | |
| Graham McKenzie | Australia | Fencing | 1956 Summer | |
| Gus McKenzie | Great Britain | Bobsleigh | 1984 Winter | |
| Jack McKenzie | Canada | Ice hockey | 1956 Winter | |
| Jacqueline McKenzie | Australia | Swimming | 1992 Summer | |
| James McKenzie | Great Britain | Boxing | 1924 Summer | |
| John McKenzie [ Wikidata ] | Wrestling | 1908 Summer | |
| Louise McKenzie | Cross country skiing | 1988 Winter | |
| Michael McKenzie | Australia | Swimming | 1988 Summer | |
| Paul McKenzie | Sailing | 1996 Summer | |
| Paula McKenzie | Canada | Bobsleigh | 2002 Winter | |
| Precious McKenzie | Great Britain | Weightlifting | 1968 Summer, 1972 Summer, 1976 Summer | |
| R. Tait McKenzie | Canada, United States | Art competitions | 1912 Summer, 1928 Summer, 1932 Summer, 1936 Summer, 1948 Summer | |
| Shane McKenzie | Australia | Bobsleigh | 2006 Winter | |
| Sue McKenzie | Swimming | 1968 Summer | |
| Teau McKenzie | Cook Islands | Sailing | 2016 Summer | |
| William McKenzie | New Zealand | 2024 Summer | |
| Cameron McKenzie-McHarg | Australia | Rowing | 2008 Summer, 2012 Summer | |
| Darren McKenzie-Potter | New Zealand | Track cycling | 1996 Summer | |
| David McKeon | Australia | Swimming | 2012 Summer, 2016 Summer | |
| Eamonn McKeon | Ireland | Boxing | 1960 Summer | |
| Emma McKeon | Australia | Swimming | 2016 Summer, 2020 Summer, 2024 Summer | |
| Matt McKeon | United States | Football | 1996 Summer | |
| Mick McKeon | Ireland | Boxing | 1948 Summer | |
| Ron McKeon | Australia | Swimming | 1980 Summer, 1984 Summer | |
| Brendan McKeown | Great Britain | Track cycling | 1968 Summer | |
| Kaylee McKeown | Australia | Swimming | 2020 Summer, 2024 Summer | |
| Taylor McKeown | 2016 Summer | |
| Bill McKerlich | Canada | Rowing | 1956 Summer, 1960 Summer | |
| Ian McKerlich | 1988 Summer | |
| Jackie McKernan | Great Britain | Athletics | 1988 Summer, 1992 Summer, 1996 Summer | |
| Clarence McKerrow | Canada | Lacrosse | 1908 Summer | |
| Chip McKibben | United States | Rowing | 1992 Summer | |
| Hannah McKibbin | Great Britain | Rhythmic gymnastics | 2004 Summer | |
| Peter McKibbin | Ireland | Field hockey | 2024 Summer | |
| John McKibbon | Canada | Basketball | 1964 Summer | |
| Thomas McKibbon | United States | Rowing | 1972 Summer | |
| William McKie | Great Britain | Wrestling | 1908 Summer | |
| David McKienzie | United States | Volleyball | 2012 Summer | |
| Catherina McKiernan | Ireland | Athletics | 1992 Summer, 1996 Summer | |
| Betty McKilligan | Canada | Figure skating | 1968 Winter | |
| John McKilligan | 1968 Winter | |
| Lawrence McKillip | United States | Bobsleigh | 1956 Winter, 1964 Winter | |
| Patricia McKillop | Zimbabwe | Field hockey | 1980 Summer | |
| Simon McKillop-Davies | Australia | Swimming | 1992 Summer | |
| Bill McKim | Great Britain | Athletics | 1964 Summer | |
| Josephine McKim | United States | Swimming | 1928 Summer, 1932 Summer | |
| Art McKinlay | Rowing | 1956 Summer | |
| John McKinlay | 1956 Summer | |
| Scott McKinley | Road cycling | 1988 Summer | |
| Sophie McKinna | Great Britain | Athletics | 2020 Summer | |
| Basil McKinney | Bahamas | Sailing | 1952 Summer | |
| Christopher McKinney | 1972 Summer | |
| Frank McKinney | United States | Swimming | 1956 Summer, 1960 Summer | |
| Kennedy McKinney | Boxing | 1988 Summer | |
| Nathaniel McKinney | Bahamas | Athletics | 2004 Summer | |
| Richard McKinney | United States | Archery | 1976 Summer, 1984 Summer, 1988 Summer, 1992 Summer | |
| Tamara McKinney | Alpine skiing | 1980 Winter, 1984 Winter, 1988 Winter | |
| Burt McKinnie | Golf | 1904 Summer | |
| Betty McKinnon | Australia | Athletics | 1948 Summer | |
| Daniel McKinnon | United States | Ice hockey | 1956 Winter | |
| Kiley McKinnon | Freestyle skiing | 2018 Winter | |
| Mervyn McKinnon | New Zealand | Field hockey | 1960 Summer | |
| Ron McKinven | Great Britain | Football | 1960 Summer | |
| Ralph McKittrick | United States | Golf, Tennis | 1904 Summer | |
| Chris McKivat | Australasia | Rugby | 1908 Summer | |
| Bob McKnight | Canada | Ice hockey | 1960 Winter | |
| Kaila McKnight | Australia | Athletics | 2012 Summer | |
| Sidney McKnight | Canada | Boxing | 1976 Summer | |
| Sparkle McKnight | Trinidad and Tobago | Athletics | 2016 Summer | |
| Stephanie McKnight | Virgin Islands | Road cycling | 1988 Summer | |
| Mark McKoy | Canada, Austria | Athletics | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Olivia McKoy | Jamaica | 2000 Summer, 2008 Summer | |
| Ben McLachlan | Japan | Tennis | 2020 Summer | |
| Hamish McLachlan | Australia | Rowing | 1988 Summer | |
| Murray McLachlan | South Africa | Swimming | 1960 Summer | |
| Robert McLachlan | Australia | Road cycling | 1992 Summer | |
| Erica McLain | United States | Athletics | 2008 Summer | |
| Rodney McLain | Canoe sprint | 1984 Summer, 1988 Summer | |
| Ward McLanahan | Athletics | 1904 Summer | |
| Jimmy McLane | Swimming | 1948 Summer, 1952 Summer | |
| M. Jean McLane | Art competitions | 1932 Summer | |
| Anita Punt | New Zealand | Field hockey | 2012 Summer, 2016 Summer | |
| Grant McLaren | Canada | Athletics | 1972 Summer, 1976 Summer | |
| Robert McLaren | 1968 Summer | |
| Timothy McLaren | Australia | Rowing | 1984 Summer | |
| William McLaren | Canada | Shooting | 1920 Summer | |
| Ian McLauchlain | Australia | Water polo | 1972 Summer | |
| Benny McLaughlin | United States | Football | 1948 Summer | |
| Brianne McLaughlin | Ice hockey | 2010 Winter | |
| Elaine McLaughlin | Great Britain | Athletics | 1988 Summer | |
| Frank McLaughlin | Canada | Sailing | 1984 Summer, 1988 Summer, 1992 Summer | |
| Jeffrey McLaughlin | United States | Rowing | 1988 Summer, 1992 Summer | |
| Katie McLaughlin | Swimming | 2020 Summer | |
| Marc McLaughlin | Ice hockey | 2022 Winter | |
| Neil McLaughlin | Ireland | Boxing | 1972 Summer | |
| Paul McLaughlin | Canada | Sailing | 1948 Summer, 1952 Summer | |
| Terry McLaughlin | 1984 Summer | |
| Sydney McLaughlin-Levrone | United States | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Anneisha McLaughlin-Whilby | Jamaica | 2016 Summer | |
| Kevin McLaverty | Ireland | Sailing | 1972 Summer | |
| Adam McLean | Boxing | 1960 Summer | |
| Alec McLean | New Zealand | Rowing | 1976 Summer | |
| Barney McLean | United States | Alpine skiing | 1948 Winter | |
| Donald McLean | Cayman Islands | Sailing | 1996 Summer | |
| Erin McLean | Canada | Softball | 2008 Summer | |
| Errol McLean | Guyana | Track cycling | 1980 Summer | |
| Gavin McLean | New Zealand | Fencing | 1992 Summer | |
| Hannah McLean | Swimming | 2004 Summer | |
| Heather McLean | Canada | Speed skating | 2018 Winter, 2022 Winter | |
| Joe McLean | Great Britain | Track cycling | 1960 Summer | |
| John McLean | United States | Athletics | 1900 Summer | |
| Matt McLean | Swimming | 2012 Summer | |
| Mike McLean | Canada | Athletics | 1992 Summer | |
| Ronald McLean | Great Britain | Artistic gymnastics | 1912 Summer, 1920 Summer | |
| Sarah McLean | Canada | Sailing | 1992 Summer | |
| Sharntelle McLean | Trinidad and Tobago | Swimming | 2004 Summer, 2008 Summer | |
| William McLean | Great Britain | Bobsleigh | 1948 Winter | |
| Theodore McLear | United States | Wrestling | 1904 Summer | |
| Glenn McLeay | New Zealand | Track cycling | 1992 Summer, 1996 Summer | |
| Adam McLeish | Great Britain | Snowboarding | 2010 Winter | |
| Grey McLeish | Canada | Rowing | 1936 Summer | |
| Sue McLeish | New Zealand | Field hockey | 1984 Summer | |
| David McLellan | Canada | Swimming | 1992 Summer | |
| Silas McLellan | Athletics | 1928 Summer | |
| Randal McLelland | United States | Shooting | 2008 Summer | |
| Mike McLenaghen | Canada | Football | 1976 Summer | |
| Bob McLeod | Track cycling | 1936 Summer | |
| Candice McLeod | Jamaica | Athletics | 2020 Summer | |
| Carey McLeod | 2020 Summer, 2024 Summer | |
| Erika McLeod | New Zealand | Alpine skiing | 2006 Winter | |
| Erin McLeod | Canada | Football | 2008 Summer, 2012 Summer | |
| Gordon McLeod | Australia | Basketball | 1980 Summer | |
| Grant McLeod | New Zealand | Field hockey | 1984 Summer, 1992 Summer | |
| John McLeod | Canada | Basketball | 1956 Summer | |
| Mike McLeod | Great Britain | Athletics | 1980 Summer, 1984 Summer, 1988 Summer | |
| Omar McLeod | Jamaica | 2016 Summer | |
| Roslyn McLeod | Canada | Rowing | 2004 Summer | |
| Tony McLeod | Great Britain | Biathlon | 1984 Winter | |
| Wes McLeod | Canada | Football | 1976 Summer | |
| Nancy McLeón | Cuba | Athletics | 1992 Summer | |
| Bill McLernon | Ireland | Equestrian eventing | 1972 Summer | |
| Melissa McLinden | United States | Volleyball | 1988 Summer | |
| Christy McLoughlin | Ireland | Boxing | 1976 Summer | |
| Emmet McLoughlin | Football | 1948 Summer | |
| Hannah McLoughlin | Field hockey | 2020 Summer | |
| Ian McLoughlin | Zambia | Boxing | 1964 Summer | |
| Jack McLoughlin | Australia | Swimming | 2016 Summer, 2020 Summer | |
| Joseph McLoughlin | United States | Rowing | 1904 Summer | |
| Noel McLoughlin | Australia | Ice hockey | 1960 Winter | |
| David McMackon | Canada | Shooting | 1908 Summer | |
| Arthur McMahon | Ireland | 1968 Summer, 1972 Summer | |
| Billy McMahon | United States | Athletics | 1936 Summer | |
| Brent McMahon | Canada | Triathlon | 2004 Summer, 2012 Summer | |
| Brian McMahon | Rowing | 1984 Summer, 1988 Summer | |
| Brigitte McMahon | Switzerland | Triathlon | 2000 Summer, 2004 Summer | |
| Daniel McMahon [ Wikidata ] | United States | Shooting | 1912 Summer | |
| Eve McMahon | Ireland | Sailing | 2024 Summer | |
| Garfield McMahon | Canada | Shooting | 1960 Summer, 1964 Summer | |
| Gerald McMahon | Australia | Fencing | 2000 Summer | |
| Karri McMahon | Field hockey | 2016 Summer | |
| Kevin McMahon | Rowing | 1956 Summer | |
| Kevin McMahon | United States | Athletics | 1996 Summer, 2000 Summer | |
| Owen McMahon | Australia | Sailing | 1996 Summer | |
| Pat McMahon | Ireland | Athletics | 1968 Summer | |
| Peter McMahon | Australia | Equestrian jumping | 2008 Summer | |
| Ronnie McMahon | Ireland | Equestrian eventing | 1972 Summer, 1976 Summer | |
| Sycerika McMahon | Swimming | 2012 Summer | |
| Audrey McManiman | Canada | Snowboarding | 2022 Winter | |
| Sara McMann | United States | Wrestling | 2004 Summer | |
| David McManus | Ireland | Judo | 1980 Summer | |
| Eugene McManus | 1988 Summer | |
| Sara McManus | Sweden | Curling | 2018 Winter, 2022 Winter | |
| Stacey McManus | Australia | Softball | 2020 Summer | |
| Cecil McMaster | South Africa | Athletics | 1920 Summer, 1924 Summer | |
| Drew McMaster | Great Britain | 1980 Summer | |
| Keryn McMaster | Australia | Swimming | 2016 Summer | |
| Kyron McMaster | British Virgin Islands | Athletics | 2020 Summer, 2024 Summer | |
| Stanley McMeekan | Great Britain | Basketball | 1948 Summer | |
| Sydney McMeekan | 1948 Summer | |
| Kate McMeeken-Ruscoe | New Zealand | 2008 Summer | |
| Chris McMeekin | Great Britain | Athletics | 1976 Summer | |
| Thomas McMeekin | Sailing | 1908 Summer | |
| Joe McMenamin | Ireland | 1972 Summer | |
| Dorian McMenemy | Dominican Republic | Swimming | 2012 Summer, 2016 Summer | |
| David McMichael | United States | Field hockey | 1984 Summer | |
| Christine McMiken | New Zealand | Athletics | 1988 Summer | |
| Donald McMiken | Australia | Modern pentathlon | 1964 Summer, 1968 Summer | |
| Andrew McMillan | New Zealand | Swimming | 2012 Summer | |
| Bruce McMillan | Shooting | 1972 Summer | |
| Chantae McMillan | United States | Athletics | 2012 Summer | |
| Chloe McMillan | New Zealand | Freestyle skiing | 2022 Winter | |
| Daniel McMillan | Great Britain | Handball | 2012 Summer | |
| Graham McMillan | Australia | Football | 1956 Summer | |
| Hammy McMillan | Great Britain | Curling | 2002 Winter | |
| Hammy McMillan Jr. | 2022 Winter | |
| Jack McMillan | Ireland, Great Britain | Swimming | 2020 Summer, 2024 Summer | |
| Kathy McMillan | United States | Athletics | 1976 Summer | |
| Leigh McMillan | Great Britain | Sailing | 2004 Summer, 2008 Summer | |
| Louis McMillan | United States | Rowing | 1952 Summer | |
| Patrick McMillan | Ireland | Alpine skiing | 2018 Winter | |
| William McMillan | United States | Shooting | 1952 Summer, 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer, 1976 Summer | |
| Bob McMillen | Athletics | 1948 Summer, 1952 Summer | |
| Mike McMillen | New Zealand | Short track speed skating | 1992 Winter, 1994 Winter | |
| Tom McMillen | United States | Basketball | 1972 Summer | |
| James McMillin | Rowing | 1936 Summer | |
| Mark McMorris | Canada | Snowboarding | 2014 Winter, 2018 Winter, 2022 Winter | |
| James McMullen | United States | Rowing | 1956 Summer | |
| Paul McMullen | Athletics | 1996 Summer | |
| Kelli McMullen-Temple | Canada | Equestrian eventing | 1996 Summer | |
| David McMullin | United States | Field hockey | 1932 Summer, 1936 Summer | |
| Harold McMunn | Canada | Ice hockey | 1924 Winter | |
| Benjamin McMurray | Philippines | Judo | 1988 Summer | |
| Charles McMurtrie | Australasia | Rugby | 1908 Summer | |
| Brent McMurtry | Canada | Cross country skiing | 2010 Winter | |
| Caragh McMurtry | Great Britain | Rowing | 2020 Summer | |
| Denfield McNab | Belize | Track cycling | 1968 Summer | |
| Kevin McNab | Australia | Equestrian eventing | 2020 Summer, 2024 Summer | |
| Rick McNair | United States | Water polo | 1996 Summer | |
| Winifred McNair | Great Britain | Tennis | 1920 Summer | |
| Andrew McNally | Australia | Baseball | 1996 Summer | |
| Jim McNally | United States | Shooting | 1968 Summer, 1972 Summer | |
| John McNally | Ireland | Boxing | 1952 Summer | |
| John McNally | United States | Shooting | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Denis McNamara | Great Britain | Wrestling | 1964 Summer | |
| James McNamara | Ireland | Athletics | 1976 Summer | |
| John J. McNamara | United States | Sailing | 1964 Summer | |
| Julianne McNamara | Artistic gymnastics | 1984 Summer | |
| Pat McNamara | Speed skating | 1952 Winter, 1956 Winter | |
| Gerry McNamee | Canada | Swimming | 1952 Summer | |
| Kay McNamee | 1948 Summer, 1952 Summer | |
| Lesley McNaught-Mändli | Switzerland | Equestrian jumping | 1992 Summer, 2000 Summer | |
| Duncan McNaughton | Canada | Athletics | 1932 Summer | |
| James McNaughton | Bobsleigh | 2014 Winter | |
| Stuart McNay | United States | Sailing | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Andrew McNee | Australia | Short track speed skating | 2002 Winter | |
| Mark McNee | 2002 Winter, 2006 Winter | |
| Erin McNeice | Great Britain | Sport climbing | 2024 Summer | |
| Calum McNeil | Wrestling | 1992 Summer | |
| Loretta McNeil | United States | Athletics | 1928 Summer | |
| Pablo McNeil | Jamaica | 1964 Summer, 1968 Summer | |
| Chris McNeill | United States | Ski jumping | 1980 Winter | |
| David McNeill | Australia | Athletics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Lee Vernon McNeill | United States | 1988 Summer | |
| Mica McNeill | Great Britain | Bobsleigh | 2018 Winter, 2022 Winter | |
| Andrew McNeilly | Trinidad and Tobago | 2002 Winter | |
| Forest McNeir | United States | Shooting | 1920 Summer | |
| Joy McNichol | Canada | Basketball | 2000 Summer | |
| Kate McNicol | Great Britain | Rowing | 1984 Summer | |
| Craig McNicoll | Speed skating | 1988 Winter, 1992 Winter | |
| Brooks McNiven | Canada | Baseball | 2008 Summer | |
| Jim McNiven | Great Britain | Rowing | 1996 Summer | |
| John McNiven | Canada | 1972 Summer | |
| Ian McNuff | Great Britain | 1980 Summer | |
| Brandon McNulty | United States | Road cycling | 2020 Summer, 2024 Summer | |
| Harry McNulty | Ireland | Rugby sevens | 2020 Summer, 2024 Summer | |
| Joe McNulty | United States | Cross country skiing | 1972 Winter | |
| William Charles McNulty | Art competitions | 1932 Summer | |
| Clarence McNutt | Canoe sprint | 1936 Summer | |
| Todd McNutt | Canada | Road cycling | 1992 Summer | |
| Holly McPeak | United States | Beach volleyball | 1996 Summer, 2000 Summer, 2004 Summer | |
| John McPhail [ Wikidata ] | Great Britain | Artistic gymnastics | 1908 Summer | |
| Michael McPhail | United States | Shooting | 2012 Summer, 2016 Summer | |
| John McPhedran | Canada | Wrestling | 1976 Summer | |
| Duncan McPhee | Great Britain | Athletics | 1920 Summer | |
| Howard McPhee | Canada | 1936 Summer | |
| Chauncey McPherson | United States | Fencing | 1924 Summer | |
| Christopher McPherson | Brazil | Field hockey | 2016 Summer | |
| Donald McPherson | Canada | Figure skating | 1960 Winter | |
| Inika McPherson | United States | Athletics | 2016 Summer | |
| Paige McPherson | Taekwondo | 2012 Summer, 2016 Summer, 2020 Summer | |
| Ross McPherson | New Zealand | Field hockey | 1968 Summer, 1972 Summer | |
| Stephenie Ann McPherson | Jamaica | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Heather McPhie | United States | Freestyle skiing | 2010 Winter, 2014 Winter | |
| John McPhun | Zimbabwe | Field hockey | 1964 Summer | |
| Marjorie McQuade | Australia | Swimming | 1948 Summer, 1952 Summer | |
| Ann McQuaid | Ireland | Canoe sprint | 1972 Summer | |
| John McQuaid | Road cycling | 1988 Summer | |
| Kieron McQuaid | 1972 Summer | |
| Oliver McQuaid | 1976 Summer | |
| Tony McQuay | United States | Athletics | 2012 Summer, 2016 Summer | |
| Athol McQueen | Australia | Boxing | 1964 Summer | |
| Rachel McQuillan | Tennis | 1992 Summer, 1996 Summer | |
| Taylor McQuillin | Mexico | Softball | 2020 Summer | |
| Ed McRae | Canada | Track cycling | 1972 Summer | |
| Francine McRae | Australia | Softball | 1996 Summer | |
| James McRae | Rowing | 2008 Summer, 2012 Summer, 2016 Summer | |
| Kimberley McRae | Canada | Luge | 2014 Winter, 2018 Winter | |
| Mike McRae | United States | Athletics | 1984 Summer | |
| Tim McRae | Weightlifting | 1992 Summer, 1996 Summer | |
| Marilyn McReavy | Volleyball | 1968 Summer | |
| Brit McRoberts | Canada | Athletics | 1984 Summer | |
| Carolyn McRorie | Curling | 2010 Winter | |
| Mona McSharry | Ireland | Swimming | 2020 Summer, 2024 Summer | |
| Kate McShea | Australia | Football | 2000 Summer | |
| Joan McSheehy | United States | Swimming | 1932 Summer | |
| Bradley McStravick | Great Britain | Athletics | 1980 Summer, 1984 Summer | |
| Fanahan McSweeney | Ireland | 1972 Summer | |
| Stewart McSweyn | Australia | 2020 Summer, 2024 Summer | |
| Cameron McTaggart | New Zealand | Weightlifting | 2020 Summer | |
| Dick McTaggart | Great Britain | Boxing | 1956 Summer, 1960 Summer, 1964 Summer | |
| Joanne McTaggart | Canada | Athletics | 1976 Summer | |
| Olivia McTaggart | New Zealand | 2024 Summer | |
| Tomeaka McTaggart | Cayman Islands | Sailing | 2000 Summer | |
| Mason McTavish | Canada | Ice hockey | 2022 Winter | |
| Simon McTavish | Canoe sprint | 2020 Summer, 2024 Summer | |
| Anna McVann | Australia | Swimming | 1984 Summer | |
| Jeff McVean | Equestrian jumping | 1984 Summer, 1988 Summer | |
| Jack McVeigh | Basketball | 2024 Summer | |
| Joseph McVein | United States | Handball | 1984 Summer, 1988 Summer | |
| Robert McVey | Ice hockey | 1960 Winter | |
| Cecil McVilly | Australasia | Rowing | 1912 Summer | |
| Julian McWatt [ Wikidata ] | Guyana | Weightlifting | 2004 Summer | |
| Donald McWatters | Australia | Field hockey | 1964 Summer | |
| Douglas McWhirter | Great Britain | Football | 1912 Summer | |
| Tom McWilliam | Ireland | Sailing | 1992 Summer | |
| Herbert McWilliams | South Africa | 1948 Summer | |
| Jackie McWilliams | Great Britain | Field hockey | 1992 Summer | |
| Ndabazinhle Mdhlongwa | Zimbabwe | Athletics | 1992 Summer, 1996 Summer | |
| Sizwe Sydney Mdluli [ Wikidata ] | Eswatini | 1988 Summer, 1992 Summer | |
| Andrea Mead Lawrence | United States | Alpine skiing | 1948 Winter, 1952 Winter, 1956 Winter | |
| Hassan Mead | Athletics | 2016 Summer | |
| Nick Mead | Rowing | 2020 Summer, 2024 Summer | |
| George Meade [ Wikidata ] | Great Britain | Artistic gymnastics | 1908 Summer | |
| Richard Meade | Equestrian eventing | 1964 Summer, 1968 Summer, 1972 Summer, 1976 Summer | |
| Stephanie Meadow | Ireland | Golf | 2016 Summer, 2020 Summer, 2024 Summer | |
| Earle Meadows | United States | Athletics | 1936 Summer | |
| Frederick Meadows | Canada | 1908 Summer | |
| Gavin Meadows | Great Britain | Swimming | 2004 Summer | |
| Jenny Meadows | Athletics | 2008 Summer | |
| Adrian Meagher | Australia | Baseball | 2000 Summer | |
| Aileen Meagher | Canada | Athletics | 1936 Summer | |
| Danny Meagher | Basketball | 1984 Summer | |
| Mary T. Meagher | United States | Swimming | 1984 Summer, 1988 Summer | |
| Robyn Meagher | Canada | Athletics | 1992 Summer, 1996 Summer | |
| Alf Meakin | Great Britain | 1964 Summer | |
| Katheryn Meaklim | South Africa | Swimming | 2008 Summer, 2012 Summer | |
| Bonnie Mealing | Australia | 1928 Summer, 1932 Summer | |
| Barbara Mean | Great Britain | Canoe sprint | 1968 Summer | |
| Michael Mean | 1968 Summer | |
| Jorge Meana | Argentina | Rowing | 1964 Summer | |
| Pablo Meana | Volleyball | 2000 Summer, 2004 Summer | |
| Helen Meany | United States | Diving | 1920 Summer, 1924 Summer, 1928 Summer | |
| Anna Meares | Australia | Track cycling | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Chris Mears | Canada | Baseball | 2004 Summer | |
| Chris Mears | Great Britain | Diving | 2012 Summer, 2016 Summer | |
| Meas Kheng | Cambodia | Athletics | 1972 Summer | |
| Judith Meauri | Papua New Guinea | Swimming | 2012 Summer, 2020 Summer | |
| Nada Meawad | Egypt | Beach volleyball | 2016 Summer | |
| Mahrez Mebarek | Algeria | Swimming | 2004 Summer, 2008 Summer | |
| Ali Mebarki [ Wikidata ] | Boxing | 1968 Summer | |
| Meriem Mebarki | Fencing | 2020 Summer | |
| Merhawi Mebrahtu | Eritrea | Athletics | 2024 Summer | |
| Kaltra Meca [ Wikidata ] | Albania | Swimming | 2024 Summer | |
| Hassan El-Mech | Morocco | Athletics | 1968 Summer | |
| Adel Mechaal | Spain | 2016 Summer, 2020 Summer, 2024 Summer | |
| Harold Mechelynck | Belgium | Field hockey | 1948 Summer, 1952 Summer | |
| Drew Mechielsen | Canada | Cycling BMX racing | 2020 Summer | |
| Iliya Mechkov | Bulgaria | Fencing | 1996 Summer | |
| Wolfgang Mechler | West Germany | Water polo | 1976 Summer | |
| Edward Mechling | United States | Athletics | 1900 Summer | |
| Lara Mechnig | Liechtenstein | Artistic swimming | 2020 Summer | |
| Miloslav Mečíř | Czechoslovakia | Tennis | 1988 Summer | |
| Don Mecklem | Australia | Field hockey | 1956 Summer | |
| Silvano Meconi | Italy | Athletics | 1956 Summer, 1960 Summer, 1964 Summer | |
| Ralph Mecredy | Great Britain | Road cycling | 1912 Summer | |
| Lajos Mecser | Hungary | Athletics | 1964 Summer, 1968 Summer | |
| Patrizia Medail | Italy | Alpine skiing | 1964 Winter | |
| Linda Medalen | Norway | Football | 1996 Summer | |
| Nada Medani | Egypt | Wrestling | 2024 Summer | |
| Shag Musa Medani | Sudan | Athletics | 1972 Summer | |
| Aya Medany | Egypt | Modern pentathlon | 2004 Summer, 2008 Summer, 2012 Summer | |
| Philippe Médard | France | Handball | 1992 Summer | |
| Bruce Medd | Canada | Artistic gymnastics | 1972 Summer | |
| Giampaolo Medda | Italy | Field hockey | 1952 Summer, 1960 Summer | |
| Mario Medda | Modern pentathlon | 1968 Summer, 1972 Summer, 1976 Summer | |
| Khaled Meddah | Algeria | Judo | 2000 Summer, 2004 Summer | |
| Rached Meddeb | Tunisia | Football | 1960 Summer | |
| Edgar Meddings | Great Britain | Bobsleigh | 1948 Winter | |
| Edmond Médécin | Monaco | Athletics | 1920 Summer | |
| Gaston Médécin | 1924 Summer, 1928 Summer | |
| Julien Médécin | Art competitions | 1924 Summer | |
| Gisela Medefindt | East Germany | Rowing | 1980 Summer | |
| Alessandra Medeiros | Brazil | Handball | 2000 Summer, 2008 Summer | |
| Eduardo de Medeiros | Modern pentathlon | 1952 Summer | |
| Etiene Medeiros | Swimming | 2016 Summer, 2020 Summer | |
| Pedro Medel | Cuba | 2008 Summer, 2012 Summer | |
| Anatoly Medennikov | Soviet Union | Speed skating | 1980 Winter | |
| Rebecca Meder | South Africa | Swimming | 2020 Summer, 2024 Summer | |
| Axel Médéric | France | Figure skating | 1988 Winter | |
| Modesto Mederos | Cuba | Athletics | 1968 Summer | |
| Heinrich Mederow | East Germany | Rowing | 1972 Summer | |
| Aiperi Medet Kyzy | Kyrgyzstan | Wrestling | 2020 Summer, 2024 Summer | |
| Judit Medgyesi | Hungary | Basketball | 1980 Summer | |
| Adham Medhat | Egypt | Shooting | 2008 Summer | |
| Teklemariam Medhin | Eritrea | Athletics | 2008 Summer, 2012 Summer | |
| Cameron Medhurst | Australia | Figure skating | 1984 Winter, 1988 Winter, 1992 Winter | |
| Paul Medhurst | Great Britain | Track cycling | 1976 Summer | |
| Guillermo Mediano | Spain | Swimming | 2000 Summer | |
| Jack Medica | United States | 1936 Summer | |
| Ángel Médici | Argentina | Football | 1928 Summer | |
| Matías Médici | Road cycling | 2008 Summer | |
| Dieter Medicus | West Germany | Ice hockey | 1988 Winter | |
| Jože Međimurec | Yugoslavia | Athletics | 1972 Summer | |
| Paula Medín | Spain | Rugby sevens | 2016 Summer | |
| Hernán Medina Calderón | Colombia | Road cycling | 1960 Summer | |
| Anabel Medina Garrigues | Spain | Tennis | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Amado Mediña | Mexico | Rowing | 1968 Summer | |
| Anabel Medina | Dominican Republic | Athletics | 2020 Summer, 2024 Summer | |
| Ariadna Medina | Mexico | Artistic swimming | 1996 Summer | |
| Arturo Medina | Chile | Athletics | 1920 Summer | |
| Ayamey Medina [ Wikidata ] | Cuba | Weightlifting | 2024 Summer | |
| Cristian Medina | Argentina | Football | 2024 Summer | |
| Facundo Medina | 2020 Summer | |
| Fernando Medina | Spain | Fencing | 1996 Summer, 2000 Summer, 2004 Summer | |
| Gabriel Medina | Brazil | Surfing | 2020 Summer, 2024 Summer | |
| Gabriela Medina | Mexico | Athletics | 2008 Summer | |
| Heitor Medina | Brazil | 1932 Summer | |
| Humberto Medina | Mexico | Football | 1968 Summer | |
| Iizzwa Medina | Honduras | Table tennis | 2004 Summer | |
| José Medina | Mexico | Swimming | 1984 Summer | |
| Jose Medina | Philippines | Shooting | 1984 Summer | |
| José Medina | Venezuela | Weightlifting | 1992 Summer | |
| José Medina | Chile | Track cycling, Road cycling | 1996 Summer, 2000 Summer | |
| Juan Antonio Medina | Spain | Handball | 1972 Summer | |
| Julio Medina | Chile | Boxing | 1972 Summer | |
| Khaterinne Medina | Colombia | Rugby sevens | 2016 Summer | |
| Luis Medina | Cuba | Athletics | 1976 Summer | |
| Luis Medina | Bolivia | Swimming | 1992 Summer | |
| Luisa Medina | Cuba | Softball | 2000 Summer | |
| Maria Medina | Puerto Rico | Archery | 1976 Summer | |
| Mario Medina | Venezuela | Road cycling | 1980 Summer | |
| Miguel Angel Medina | Mexico | Weightlifting | 1968 Summer, 1972 Summer | |
| Nicolás Medina | Argentina | Football | 2004 Summer | |
| Noé Medina | Ecuador | Road cycling | 1968 Summer | |
| Paula Medina | Colombia | Table tennis | 2008 Summer, 2012 Summer | |
| Pedro Medina | Spain | Shooting | 1964 Summer | |
| Sabino Medina | Cuba | Handball | 1980 Summer | |
| Salvador Medina | Mexico | Athletics | 1968 Summer | |
| Tulia Medina | Colombia | Weightlifting | 2004 Summer, 2008 Summer | |
| William Medina | Judo | 1988 Summer | |
| Yojer Medina | Venezuela | Athletics | 1996 Summer | |
| Theo Meding | Germany | Speed skating | 1952 Winter | |
| Michel Medinger Sr. | Luxembourg | Athletics | 1936 Summer | |
| Michel Medinger | 1964 Summer | |
| Nesrine Medjahed [ Wikidata ] | Algeria | Swimming | 2024 Summer | |
| Kirils Medjancevs | Latvia | Modern pentathlon | 1992 Summer | |
| Klaudia Medlová | Slovakia | Snowboarding | 2018 Winter, 2022 Winter | |
| Viktor Mednov | Soviet Union | Boxing | 1952 Summer | |
| Szilvia Mednyánszky | Hungary | Canoe sprint | 1996 Summer | |
| Michael Medor | Mauritius | Boxing | 2004 Summer | |
| Bibi Medoua | Cameroon | Football | 2012 Summer | |
| Déborah Medrado | Brazil | Rhythmic gymnastics | 2020 Summer, 2024 Summer | |
| Fernando Medrano | Nicaragua | Swimming | 2004 Summer | |
| Íngrid Medrano | El Salvador | Wrestling | 2008 Summer | |
| Luis Medrano | Guatemala | Weightlifting | 1996 Summer, 2000 Summer | |
| Rita Medrano | Mexico | Swimming | 2012 Summer | |
| Josef Medřický | Czechoslovakia | Water polo | 1936 Summer | |
| Stanislav Medřík | Slovakia | Ice hockey | 1994 Winter | |
| Natalia Mędrzyk | Poland | Volleyball | 2024 Summer | |
| Erika Medveczky | Hungary | Canoe sprint | 2020 Summer | |
| Krisztina Medveczky | Artistic gymnastics | 1972 Summer, 1976 Summer | |
| Aleksandr Medved | Soviet Union | Wrestling | 1964 Summer, 1968 Summer, 1972 Summer | |
| Samo Medved | Slovenia | Archery | 1992 Summer, 1996 Summer | |
| Aleksey Medvedev | Belarus | Wrestling | 1996 Summer, 2000 Summer | |
| Andrei Medvedev | Russian Olympic Committee | Luge | 2018 Winter | |
| Daniil Medvedev | Russian Olympic Committee, Independent Olympians | Tennis | 2020 Summer, 2024 Summer | |
| Evgeny Medvedev | Russia | Ice hockey | 2014 Winter | |
| Ilya Medvedev | Canoe sprint | 2008 Summer, 2012 Summer | |
| Vitaliy Medvedev | Kazakhstan | Athletics | 1996 Summer, 2000 Summer | |
| Vitaly Medvedev | Ukraine | Fencing | 2008 Summer | |
| Yevgeniy Medvedev | Kazakhstan | Water polo | 2020 Summer | |
| Evgenia Medvedeva | Russian Olympic Committee | Figure skating | 2018 Winter | |
| Nijolė Medvedeva | Lithuania | Athletics | 1992 Summer | |
| Yelena Medvedeva | Unified Team | Rowing | 1992 Summer | |
| Yevgeniya Medvedeva | Russia | Cross country skiing | 2006 Winter, 2010 Winter | |
| Valeriy Medvedtsev | Soviet Union, Unified Team, Russia | Biathlon | 1988 Winter, 1992 Winter, 1994 Winter | |
| Olga Medvedtseva | Russia | 2002 Winter, 2006 Winter, 2010 Winter | |
| Blaž Medvešek | Slovenia | Swimming | 2000 Summer, 2004 Summer | |
| Kenneth Medwood | Belize | Athletics | 2012 Summer | |
| Camille Médy | France | Cross country skiing | 1924 Winter, 1928 Winter | |
| Lucia Medzihradská | Czechoslovakia, Slovakia | Alpine skiing | 1988 Winter, 1992 Winter, 1994 Winter | |
| Bep du Mée | Netherlands | Athletics | 1932 Summer | |
| Lauren Meece | United States | Judo | 2000 Summer | |
| Athol Meech | Canada | Rowing | 1928 Summer | |
| Daniel Meech | New Zealand | Equestrian jumping | 1996 Summer, 2004 Summer, 2020 Summer | |
| Molly Meech | Sailing | 2016 Summer, 2020 Summer, 2024 Summer | |
| Sam Meech | 2016 Summer, 2020 Summer | |
| Chloe Meecham | South Africa | Water polo | 2020 Summer | |
| Joanne Meehan | Australia | Swimming | 1992 Summer | |
| Roy Meehan | New Zealand | Wrestling | 1964 Summer | |
| Bill Meek | United States | Shooting | 1992 Summer, 1996 Summer | |
| Chantal Meek | Australia | Canoe sprint | 2004 Summer, 2008 Summer | |
| Patrick Meek | United States | Speed skating | 2014 Winter | |
| Michael Meeks | Canada | Basketball | 2000 Summer | |
| Shyam Lal Meena | India | Archery | 1988 Summer | |
| Harry van der Meer | Netherlands | Water polo | 1992 Summer, 1996 Summer, 2000 Summer | |
| Henk van der Meer | Rowing | 1948 Summer | |
| Jacques van Meer | Road cycling | 1980 Summer | |
| Jolande van der Meer | Swimming | 1984 Summer | |
| Laila van der Meer [ Wikidata ] | Sailing | 2024 Summer | |
| Maud van der Meer | Swimming | 2016 Summer | |
| Patrick van der Meer | Equestrian dressage | 2012 Summer | |
| Tycho van Meer | Field hockey | 1996 Summer | |
| Nico Meerholz | South Africa | Badminton | 1992 Summer | |
| Georges Ganshof van der Meersch | Belgium | Equestrian jumping | 1936 Summer | |
| Michel Meerz [ Wikidata ] | France | Athletics | 1912 Summer | |
| Helga Mees | Germany, West Germany | Fencing | 1960 Summer, 1964 Summer, 1968 Summer | |
| Jules Meese | France | Weightlifting | 1928 Summer | |
| August Meesen [ Wikidata ] | Belgium | Wrestling | 1908 Summer | |
| Lila Meesseman-Bakir | France | Artistic swimming | 2008 Summer | |
| Emma Meesseman | Belgium | Basketball | 2020 Summer, 2024 Summer | |
| Veronique Meester | Netherlands | Rowing | 2020 Summer, 2024 Summer | |
| Klaus Meetz | West Germany | Volleyball | 1972 Summer | |
| Jean Meeus | Belgium | Ice hockey | 1928 Winter | |
| Folkert Meeuw | West Germany | Swimming | 1968 Summer, 1972 Summer | |
| Helge Meeuw | Germany | 2004 Summer, 2008 Summer, 2012 Summer | |
| Louis Meeuwessen | Netherlands | Boxing | 1924 Summer | |
| Martijn Meeuwis | Baseball | 2008 Summer | |
| Lili Meeuwisse | Rowing | 1980 Summer | |
| Robert Meeuwsen | Beach volleyball | 2016 Summer, 2020 Summer | |
| Arnulf Meffle | West Germany | Handball | 1984 Summer | |
| Claudine Meffometou | Cameroon | Football | 2012 Summer | |
| Bryce Mefford | United States | Swimming | 2020 Summer | |
| Abdellatif Meftah | France | Athletics | 2012 Summer | |
| Zemfira Meftahatdinova | Azerbaijan | Shooting | 2000 Summer, 2004 Summer, 2008 Summer | |
| Meg | Brazil | Football | 1996 Summer | |
| Azmi Mohamed Megahed | Egypt | Volleyball | 1976 Summer | |
| Heykel Megannem | Tunisia | Handball | 2000 Summer, 2012 Summer | |
| Nasreddine Megdich | Qatar | 2016 Summer | |
| Gheorghe Megelea | Romania | Athletics | 1976 Summer | |
| Maurice Megennis | Great Britain | Weightlifting | 1952 Summer, 1956 Summer | |
| Maud Megens | Netherlands | Water polo | 2020 Summer | |
| Hermann Megenthaler | Mexico | Sailing | 1984 Summer | |
| Metiku Megersa | Ethiopia | Athletics | 1992 Summer | |
| Alemu Megertu | 2024 Summer | |
| Jakob Meggendorfer [ Wikidata ] | Germany | Sailing | 2024 Summer | |
| Michael Meggison | Great Britain | Shooting | 1984 Summer | |
| Anneliese Meggl | Germany | Alpine skiing | 1960 Winter | |
| Greg Meghoo | Jamaica | Athletics | 1984 Summer, 1988 Summer | |
| Filippo Megli | Italy | Swimming | 2020 Summer, 2024 Summer | |
| Jure Meglič | Azerbaijan | Canoe slalom | 2016 Summer | |
| Robert Meglič | Slovenia | Ski jumping | 1994 Winter | |
| Ferdinando Meglio | Italy | Fencing | 1980 Summer, 1984 Summer, 1988 Summer, 1992 Summer | |
| Alexander Megos | Germany | Sport climbing | 2020 Summer, 2024 Summer | |
| Robin Megraw | Canada | Football | 1976 Summer | |
| Jemal Megrelishvili | Soviet Union | Wrestling | 1972 Summer | |
| Alfred Mégroz | Switzerland | Figure skating | 1920 Summer | |
| Ovaness Meguerdonian | Iran | Alpine skiing | 1964 Winter, 1968 Winter | |
| Hironao Meguro | Japan | Biathlon | 1998 Winter, 2002 Winter | |
| Kanae Meguro | 2006 Winter | |
| Moe Meguro | Curling | 2006 Winter, 2010 Winter | |
| Antal Megyerdi | Hungary | Road cycling | 1964 Summer | |
| Márta Megyeri | Handball | 1976 Summer | |
| Saleh Al-Mehaizaa | Qatar | Football | 1984 Summer | |
| Charles Mehan | United States | Rugby | 1920 Summer | |
| Ram Mehar | India | Athletics | 1956 Summer | |
| Mizan Mehari | Australia | 2000 Summer | |
| Rehaset Mehari | Eritrea | 2012 Summer | |
| Biniam Mehary | Ethiopia | 2024 Summer | |
| Sahim Saleh Mehdi | South Yemen | 1988 Summer | |
| Kasra Mehdipournejad | Refugee Olympic Team | Taekwondo | 2024 Summer | |
| Mammadali Mehdiyev | Azerbaijan | Judo | 2016 Summer, 2020 Summer | |
| Mansour Mehdizadeh | Iran | Wrestling | 1960 Summer, 1964 Summer, 1968 Summer | |
| Michel Mehech | Chile | Basketball | 1936 Summer | |
| Taoufik Mehedhebi | Tunisia | Football | 1988 Summer | |
| Abdel-Aziz Mehelba | Egypt | Shooting | 2016 Summer, 2020 Summer | |
| Azmy Mehelba | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Estella Meheux | Sierra Leone | Athletics | 1980 Summer | |
| Suela Mëhilli | Albania | Alpine skiing | 2014 Winter, 2018 Winter | |
| Maxime Mehinto | Benin | Boxing | 1984 Summer | |
| Eberhard Mehl | Germany | Fencing | 1960 Summer, 1964 Summer | |
| Gabriele Mehl | West Germany, Germany | Rowing | 1988 Summer, 1992 Summer | |
| Paul Mehl | Germany | Football | 1936 Summer | |
| Willi Mehlberg | Canoe sprint | 1960 Summer | |
| Jože Mehle | Slovenia | Cross country skiing | 2006 Winter | |
| Annika Mehlhorn | Germany | Swimming | 2004 Summer | |
| Hans Mehlhorn | Bobsleigh | 1932 Winter | |
| Harry Mehlhose | Athletics | 1936 Summer | |
| Krzysztof Mehlich | Poland | 1996 Summer | |
| Paul Mehlitz | Germany | Field hockey | 1936 Summer | |
| Ibolya Mehlmann | Hungary | Handball | 2004 Summer | |
| Admir Mehmedi | Switzerland | Football | 2012 Summer | |
| Husein Mehmedov | Bulgaria | Wrestling | 1956 Summer | |
| Majda Mehmedović | Montenegro | Handball | 2012 Summer, 2016 Summer, 2020 Summer | |
| Sasha Mehmedovic | Canada | Judo | 2008 Summer, 2012 Summer | |
| Rashid Mehmood | Pakistan | Field hockey | 2012 Summer | |
| George Mehnert | United States | Wrestling | 1904 Summer, 1908 Summer | |
| Siegfried Mehnert | East Germany | Boxing | 1988 Summer | |
| Raj Kumar Mehra | India | Road cycling, Track cycling | 1948 Summer, 1952 Summer | |
| Ebrahim Mehraban | Iran | Wrestling | 1996 Summer | |
| Kaveh Mehrabi | Badminton | 2008 Summer | |
| Jochen Mehrdorf | West Germany | Equestrian eventing | 1968 Summer | |
| Hans Mehren | Norway | Sailing | 1964 Summer | |
| Mohamed Mehrez | Egypt | Shooting | 1964 Summer, 1968 Summer | |
| Heinrich Mehringer | West Germany | Biathlon | 1976 Winter | |
| Peter Mehringer | United States | Wrestling | 1932 Summer | |
| Slim Mehrizi | Tunisia | Volleyball | 1984 Summer | |
| Kamlesh Mehta | India | Table tennis | 1988 Summer, 1992 Summer | |
| Sangita Mehta | Judo | 1992 Summer | |
| Henri Mehu | France | Equestrian dressage | 1920 Summer | |
| Stefano Mei | Italy | Athletics | 1984 Summer, 1988 Summer | |
| Mei Xiaohan | China | Water polo | 2016 Summer, 2020 Summer | |
| Mei Zhibin | Figure skating | 1988 Winter | |
| Dominik Meichtry | Switzerland | Swimming | 2004 Summer, 2008 Summer, 2012 Summer | |
| Carina Meidele | Germany | Curling | 1998 Winter | |
| Cliff Meidl | United States | Canoe sprint | 1996 Summer, 2000 Summer | |
| Christian Meidlinger | Austria | Track cycling | 1992 Summer, 1996 Summer | |
| Walther Meienreis | Germany | Fencing | 1912 Summer | |
| Adolf Meier | Switzerland | Athletics | 1924 Summer, 1928 Summer | |
| Alina Meier [ Wikidata ] | Cross country skiing | 2022 Winter | |
| Armin Meier | Road cycling | 1992 Summer | |
| Arthur Meier | Liechtenstein | Cross country skiing | 1948 Winter | |
| Beat Meier | Switzerland | Biathlon | 1984 Winter | |
| Christine Meier | Ice hockey | 2006 Winter, 2010 Winter, 2018 Winter | |
| Christoph Meier | Equestrian eventing | 1996 Summer | |
| Christoph Meier | Liechtenstein | Swimming | 2016 Summer, 2020 Summer | |
| Dione Meier | Canada | Softball | 2008 Summer | |
| Dirk Meier | East Germany | Track cycling | 1988 Summer | |
| Franz Meier | Switzerland | Athletics | 1980 Summer, 1984 Summer | |
| Günther Meier | West Germany | Boxing | 1968 Summer, 1972 Summer | |
| Heinz Meier | Switzerland | Water polo | 1936 Summer | |
| Kersten Meier | West Germany | Swimming | 1972 Summer | |
| Kurt Meier | Switzerland | Bobsleigh | 1988 Winter, 1994 Winter | |
| Maaris Meier | Estonia | Road cycling | 2004 Summer | |
| Martin Meier | Switzerland | Bobsleigh | 2018 Winter | |
| Max Meier | Boxing | 1960 Summer | |
| Patrick Meier | Figure skating | 1998 Winter | |
| Paul Meier | Germany | Athletics | 1992 Summer | |
| Roland Meier | Switzerland | Road cycling | 1992 Summer | |
| Rudolf Meier | Boxing | 1964 Summer | |
| Sarah Meier | Figure skating | 2002 Winter, 2006 Winter, 2010 Winter | |
| Simone Meier | Athletics | 1992 Summer | |
| Walter Meier | Germany | 1956 Summer, 1960 Summer | |
| Walther Meier | Switzerland | Field hockey | 1936 Summer | |
| Werner Meier | Athletics | 1972 Summer | |
| Willi Meier | Germany | 1928 Summer | |
| Christina Meier-Höck | West Germany, Germany | Alpine skiing | 1988 Winter, 1992 Winter, 1994 Winter | |
| Zonia Meigham | Guatemala | Athletics | 1984 Summer | |
| Ernest Meighan | Belize | Road cycling | 1992 Summer | |
| Owen Meighan | Athletics | 1968 Summer | |
| Laetitia Meignan | France | Judo | 1992 Summer | |
| Alphonse Meignant | Rowing | 1912 Summer | |
| Gints Meija | Latvia | Ice hockey | 2010 Winter, 2022 Winter | |
| Herman van der Kloot Meijburg | Netherlands | Art competitions | 1924 Summer | |
| Ilse van der Meijden | Water polo | 2008 Summer | |
| Eduard Meijer | Swimming, Water polo | 1900 Summer, 1908 Summer | |
| Elien Meijer | Rowing | 1996 Summer, 2000 Summer | |
| Herma Meijer | Speed skating | 1992 Winter | |
| Jaap Meijer | Track cycling | 1924 Summer | |
| Jan Meijer | Athletics | 1948 Summer | |
| Karel Meijer | Water polo | 1908 Summer, 1920 Summer | |
| Mans Meijer | Art competitions | 1948 Summer | |
| Michaela Meijer | Sweden | Athletics | 2016 Summer, 2020 Summer | |
| Tamara Meijer | Netherlands | Judo | 1996 Summer | |
| Theo Meijer | 1988 Summer, 1992 Summer | |
| Dientje Meijer-Haantjes | Artistic gymnastics | 1948 Summer | |
| Mary Meijer-van der Sluis | Fencing | 1948 Summer | |
| Anita Meiland | Rowing | 1992 Summer | |
| Simona Meiler | Switzerland | Snowboarding | 2010 Winter, 2014 Winter, 2018 Winter | |
| Christian Meili | Bobsleigh | 1992 Winter, 1994 Winter | |
| Katie Meili | United States | Swimming | 2016 Summer | |
| Launi Meili | Shooting | 1988 Summer, 1992 Summer | |
| Marc Meiling | West Germany | Judo | 1984 Summer, 1988 Summer | |
| Melanie Meilinger | Austria | Freestyle skiing | 2018 Winter | |
| Loïc Meillard | Switzerland | Alpine skiing | 2018 Winter, 2022 Winter | |
| Ophélie Meilleroux | France | Football | 2012 Summer | |
| Rūta Meilutytė | Lithuania | Swimming | 2012 Summer, 2016 Summer, 2024 Summer | |
| Johan Meimer | Estonia | Athletics | 1928 Summer | |
| Derrick Mein | United States | Shooting | 2020 Summer, 2024 Summer | |
| Martin Meinberg | West Germany | Bobsleigh | 1980 Winter | |
| Hannelore Meincke | East Germany | Volleyball | 1976 Summer | |
| Horst Meindl | West Germany | Ice hockey | 1968 Winter | |
| Léonardo Meindl | Brazil | Basketball | 2024 Summer | |
| Petr Meindlschmid | Czech Republic | Athletics | 2024 Summer | |
| David Meineke | South Africa | Rowing | 1960 Summer | |
| Dieter Meinel | East Germany | Cross country skiing | 1976 Winter | |
| Maarten Meiners | Netherlands | Alpine skiing | 2022 Winter | |
| Peter Meinert Nielsen | Denmark | Road cycling | 1988 Summer | |
| Maren Meinert | Germany | Football | 2000 Summer | |
| Niklas Meinert | Field hockey | 2008 Summer | |
| Gerek Meinhardt | United States | Fencing | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Sven Meinhardt | Germany | Field hockey | 1992 Summer, 1996 Summer | |
| Martti Meinilä | Finland | Biathlon | 1960 Winter | |
| Carmen Meininger | Germany | Shooting | 2000 Summer | |
| Katrin Meinke | Track cycling | 2004 Summer | |
| Louis Meintjes | South Africa | Road cycling | 2016 Summer | |
| Ak'ak'i Meipariani | Soviet Union | Fencing | 1952 Summer | |
| Fernando Meira | Portugal | Football | 2004 Summer | |
| Raul Meireles | 2004 Summer | |
| Filip Meirhaeghe | Belgium | Cycling mountain bike | 2000 Summer, 2008 Summer | |
| Yoav Meiri | Israel | Swimming | 2000 Summer | |
| Lin Meiring | South Africa | 1952 Summer | |
| Zou Meirong | China | Field hockey | 2024 Summer | |
| Adina Laura Meiroșu | Romania | Handball | 2008 Summer | |
| Dietmar Meisch | East Germany | Athletics | 1980 Summer, 1988 Summer | |
| Joachim Meischner | Biathlon | 1972 Winter | |
| Willy Meisl | Austria | Art competitions | 1928 Summer | |
| Gottfried von Meiss | Switzerland | Fencing | 1936 Summer, 1948 Summer | |
| Henri Meiss | France | Wrestling | 1992 Summer | |
| Milena Meisser | Switzerland | Snowboarding | 2002 Winter | |
| Ernie Meissner | Canada | Diving | 1960 Summer | |
| Frank Meissner | United States | Road cycling | 1912 Summer | |
| Heike Meißner | Germany | Athletics | 1992 Summer, 1996 Summer, 2000 Summer | |
| Jochen Meißner | West Germany | Rowing | 1968 Summer, 1972 Summer | |
| Katrin Meissner | East Germany, Germany | Swimming | 1988 Summer, 2000 Summer | |
| Kimmie Meissner | United States | Figure skating | 2006 Winter | |
| Monika Meißner | East Germany | Volleyball | 1976 Summer | |
| Paul Meissner | Austria | Art competitions | 1936 Summer | |
| Alexandra Meissnitzer | Alpine skiing | 1994 Winter, 1998 Winter, 2002 Winter, 2006 Winter | |
| Alfred Meister | Switzerland | Rowing | 1968 Summer | |
| Beat Meister | Road cycling | 1992 Summer | |
| Doris Meister | West Germany | Swimming | 1968 Summer | |
| Gérard Meister | France | 1908 Summer, 1912 Summer | |
| Paul Meister | Switzerland | Fencing | 1952 Summer, 1960 Summer, 1964 Summer | |
| Stefan Meister | Germany | Sailing | 2000 Summer | |
| Urs Meister | Switzerland | Artistic gymnastics | 1984 Summer | |
| Christian Meisterhans | Handball | 1996 Summer | |
| Amadou Meïté | Ivory Coast | Athletics | 1972 Summer, 1976 Summer | |
| Ben Youssef Meïté | 2012 Summer, 2016 Summer | |
| Ibrahim Meité | 1996 Summer, 2000 Summer | |
| Maé-Bérénice Méité | France | Figure skating | 2014 Winter, 2018 Winter | |
| Holger Meitinger | West Germany | Ice hockey | 1980 Winter | |
| Josef Meixner | Austria | Shooting | 1964 Summer, 1968 Summer, 1972 Summer, 1976 Summer | |
| Alfredo Mejía | Honduras | Football | 2012 Summer | |
| Álvaro Mejía | Colombia | Athletics | 1964 Summer, 1968 Summer, 1972 Summer | |
| Carlos Mejia | Mexico | Equestrian jumping | 1932 Summer | |
| Carlos Mejia | Colombia | Boxing | 1976 Summer | |
| Clemente Mejía | Mexico | Swimming | 1948 Summer, 1952 Summer | |
| David Mejia | Athletics | 2008 Summer | |
| Didier Mejía | 1964 Summer | |
| Erick Mejia | Dominican Republic | Baseball | 2020 Summer | |
| Joel Mejia | Athletics | 2012 Summer | |
| Jorge Mejía | Ecuador | Boxing | 1972 Summer | |
| Kevin Mejía | Honduras | Wrestling | 2024 Summer | |
| León Mejía | Colombia | Track cycling | 1956 Summer | |
| Lucero Mejía [ Wikidata ] | Guatemala | Swimming | 2024 Summer | |
| Pedro Mejía | Dominican Republic | Athletics | 2008 Summer | |
| Ramón Mejía | Mexico | Equestrian eventing | 1968 Summer, 1972 Summer | |
| Yudelina Mejía | Dominican Republic | Weightlifting | 2024 Summer | |
| Candela Mejías | Spain | Field hockey | 2020 Summer | |
| Marlies Mejías | Cuba | Track cycling | 2012 Summer, 2016 Summer | |
| Octavio Mejías | Venezuela | Weightlifting | 2004 Summer, 2008 Summer | |
| Wolfgang Mejías | Fencing | 2008 Summer | |
| Ahmed Mejri | Tunisia | Boxing | 2012 Summer | |
| Aymen Mejri | Rowing | 2012 Summer | |
| Salah Mejri | Basketball | 2012 Summer | |
| Włodzimierz Mejsak | Poland | Diving | 1968 Summer | |
| Zdeněk Mejstřík | Czechoslovakia | Rowing | 1964 Summer | |
| Karel Mejta Jr | 1976 Summer, 1980 Summer | |
| Karel Mejta Sr | 1952 Summer | |
| Yahia El-Mekachari | Tunisia | Boxing | 2012 Summer | |
| Hadir Mekhimar | Egypt | Shooting | 2016 Summer | |
| Mahiedine Mekhissi-Benabbad | France | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Mouloud Mekhnache | Algeria | Handball | 1980 Summer, 1984 Summer | |
| Egor Mekhontsev | Russia | Boxing | 2012 Summer | |
| Amel Mekić | Bosnia and Herzegovina | Judo | 2004 Summer, 2008 Summer, 2012 Summer | |
| Hisham Mohamed Mekin | Egypt | Athletics | 1984 Summer | |
| Ahmed Mekkawi | Football | 1948 Summer, 1952 Summer | |
| Naji El-Mekki | Morocco | Modern pentathlon, Shooting | 1960 Summer | |
| Deolin Mekoa | South Africa | Football | 2016 Summer | |
| Arsen Mekokishvili | Soviet Union | Wrestling | 1952 Summer | |
| Abebe Mekonnen | Ethiopia | Boxing | 1964 Summer | |
| Abebe Mekonnen | Athletics | 1992 Summer, 1996 Summer | |
| Ayele Mekonnen | Road cycling | 1980 Summer | |
| Deresse Mekonnen | Athletics | 2008 Summer | |
| Hailu Mekonnen | 2000 Summer | |
| Tadesse Mekonnen | Road cycling | 1980 Summer | |
| Yevdokiya Mekshilo | Soviet Union | Cross country skiing | 1964 Winter | |
| Anikó Meksz | Hungary | Handball | 1996 Summer | |
| Nikola Mektić | Croatia | Tennis | 2020 Summer, 2024 Summer | |
| Lynda Mekzine | Algeria | Judo | 1996 Summer | |
| Jaime Mela | Spain | Fencing | 1924 Summer | |
| Zampia Melachroinou | Greece | Swimming | 2000 Summer | |
| Pantelis Melachroinoudis | Athletics | 2008 Summer | |
| Odysseus Meladinis | Swimming | 2016 Summer, 2020 Summer, 2024 Summer | |
| Edward Melaika | United States | Sailing | 1952 Summer | |
| Catherine Melain | France | Basketball | 2000 Summer | |
| Nibret Melak | Ethiopia | Athletics | 2020 Summer | |
| Avraham Melamed | Israel | Swimming | 1964 Summer, 1968 Summer | |
| Anssi Melametsä | Finland | Ice hockey | 1984 Winter | |
| Joliane Melançon | Canada | Judo | 2012 Summer | |
| Ann Melander | Sweden | Alpine skiing | 1980 Winter | |
| Vladimir Melanin | Soviet Union | Biathlon | 1960 Winter, 1964 Winter | |
| Nikolaos Melanofeidis | Greece | Swimming, Water polo | 1948 Summer | |
| Riley Melanson | Canada | Canoe sprint | 2024 Summer | |
| Viktor Melantyev | Russia, Russian Olympic Committee | 2008 Summer, 2020 Summer | |
| Rostand Melaping | Cameroon | Judo | 2004 Summer | |
| Guilherme Melaragno | Brazil | Fencing | 2016 Summer | |
| André Mélardy | Belgium | Water polo | 1928 Summer | |
| Massimo Melassi [ Wikidata ] | Italy | Baseball | 1992 Summer | |
| Oskars Melbārdis | Latvia | Bobsleigh | 2014 Winter, 2018 Winter | |
| Stefanie Melbeck | Germany | Handball | 2008 Summer | |
| Kristine Melberg Hansen | Denmark | Ice hockey | 2022 Winter | |
| Jarl Inge Melberg | Norway | Swimming | 1992 Summer | |
| Sam Melberg | Diving | 1936 Summer | |
| Jade Melbourne | Australia | Basketball | 2024 Summer | |
| Jerzy Melcer | Poland | Handball | 1972 Summer, 1976 Summer | |
| Arturo Melcher | Chile | Athletics | 1952 Summer | |
| James Melcher | United States | Fencing | 1972 Summer | |
| Gari Melchers | Art competitions | 1932 Summer | |
| Marie Melchers | Belgium | Fencing | 1960 Summer | |
| Mirjam Melchers | Netherlands | Road cycling | 2000 Summer, 2004 Summer, 2008 Summer | |
| Eduardo Melchert | Brazil | Sailing | 1992 Summer | |
| Ernst Melchior | Austria | Football | 1948 Summer | |
| Mario Melchiori | Italy | Rowing | 1928 Summer | |
| Manuela Melchiorri | Swimming | 1988 Summer, 1992 Summer | |
| Inés Melchor | Peru | Athletics | 2004 Summer, 2012 Summer, 2016 Summer | |
| Frans Melckenbeeck | Belgium | Track cycling | 1960 Summer | |
| Gabriel Melconian Alvez | Uruguay | Swimming | 2012 Summer | |
| Martin Melconian | 2016 Summer | |
| Visvaldis Melderis | Latvia | Basketball | 1936 Summer | |
| Lotte Meldgaard Pedersen | Denmark | Sailing | 2012 Summer | |
| Jenny Meldrum | Canada | Athletics | 1964 Summer, 1968 Summer | |
| Michael Meldrum | Swimming | 1988 Summer | |
| René Mélédjé | Ivory Coast | Athletics | 1984 Summer, 1988 Summer | |
| Meleti Ross Melehes | Greece | Baseball | 2004 Summer | |
| Tarieli Melelashvili | Georgia | Wrestling | 1996 Summer, 2000 Summer | |
| Rogelio Melencio | Philippines | Basketball | 1968 Summer, 1972 Summer | |
| Carlos Meléndez | Honduras | Football | 2020 Summer | |
| Cristopher Meléndez | 2020 Summer | |
| José Meléndez | Venezuela | Athletics | 2012 Summer | |
| Luis Meléndez | Spain | 1920 Summer | |
| Tayra Meléndez | Puerto Rico | Basketball | 2020 Summer, 2024 Summer | |
| Urbia Meléndez | Cuba | Taekwondo | 2000 Summer | |
| Paulino Meléndres | Philippines | Boxing | 1956 Summer | |
| Yuri Melentiev | Kyrgyzstan | Shooting | 1996 Summer, 2000 Summer | |
| Alexander Melentyev | Soviet Union | 1980 Summer, 1988 Summer | |
| Carlos Melero | Spain | Road cycling | 1972 Summer | |
| Yeva Meleshchuk | Ukraine | Rhythmic gymnastics | 2020 Summer | |
| Yevgeniy Meleshenko | Kazakhstan | Athletics | 2004 Summer, 2008 Summer | |
| Irina Meleshina | Russia | 2004 Summer | |
| Dmitry Meleshko | Belarus | Ice hockey | 2010 Winter | |
| Hristos Meletoglou | Greece | Athletics | 2000 Summer, 2004 Summer | |
| Yvonne Meley | France | Art competitions | 1924 Summer | |
| Mette Melgaard | Denmark | Handball | 2012 Summer | |
| Nelson Melgar | Guatemala | Football | 1968 Summer | |
| Osniel Melgarejo | Cuba | Volleyball | 2016 Summer | |
| Buddy Melges | United States | Sailing | 1964 Summer, 1972 Summer | |
| Konstantin Melgunov | Soviet Union | 1952 Summer, 1956 Summer, 1960 Summer, 1964 Summer, 1968 Summer | |
| Bernie Meli | Ireland | Boxing | 1960 Summer | |
| Joe Meli | Canada | Judo | 1976 Summer, 1984 Summer, 1988 Summer | |
| Siro Meli | Italy | Rowing | 1972 Summer, 1984 Summer | |
| Giorgi Melia | Georgia | Wrestling | 2020 Summer | |
| Leslie Melia | Canada | Canoe sprint | 1956 Summer | |
| Salvador Meliá | Spain | Track cycling | 2000 Summer, 2004 Summer | |
| Dzmitry Meliakh | Belarus | Modern pentathlon | 2004 Summer, 2008 Summer, 2012 Summer | |
| Alberto Melián | Argentina | Boxing | 2012 Summer, 2016 Summer | |
| Artur Meliashkevich | Belarus | Athletics | 2000 Summer | |
| Lukáš Melich | Czech Republic | 2008 Summer, 2012 Summer, 2016 Summer | |
| Vlastimil Melich | Czechoslovakia | Cross country skiing, Nordic combined | 1952 Winter, 1956 Winter, 1960 Winter | |
| Nicole Melichar-Martinez | United States | Tennis | 2020 Summer | |
| Ľudmila Melicherová | Czechoslovakia | Athletics | 1988 Summer | |
| Judy Melick | United States | Swimming | 1972 Summer | |
| Antiopi Melidoni | Greece | Water polo | 2004 Summer | |
| Lori Melien | Canada | Swimming | 1988 Summer | |
| Ellen Meliesie | Netherlands | Rowing | 1996 Summer | |
| Fernando Meligeni | Brazil | Tennis | 1996 Summer | |
| Amel Melih | Algeria | Swimming | 2020 Summer | |
| Yury Melikhov | Soviet Union | Road cycling | 1960 Summer, 1964 Summer | |
| Bektemir Melikuziev | Uzbekistan | Boxing | 2016 Summer | |
| Armen Melikyan | Armenia | Wrestling | 2020 Summer | |
| Arsen Melikyan | Weightlifting | 2000 Summer | |
| Anders Melin | Sweden | Athletics | 1948 Summer | |
| Bengt Melin | Sailing | 1948 Summer, 1952 Summer | |
| Douglas Melin | Athletics | 1912 Summer | |
| Göte Melin | Wrestling | 1936 Summer | |
| Viktor Melin | 1912 Summer | |
| Teja Melink | Slovenia | Athletics | 2004 Summer | |
| Doina Melinte | Romania | 1980 Summer, 1984 Summer, 1988 Summer, 1992 Summer | |
| Antal Melis | Hungary | Rowing | 1968 Summer, 1972 Summer | |
| Charles Melis | Belgium | Athletics | 1920 Summer | |
| Cornelia Melis | Aruba | 1988 Summer, 1992 Summer | |
| Roland Melis | Netherlands Antilles | Triathlon | 2000 Summer | |
| Vito Melis | Italy | Boxing | 1932 Summer | |
| Zoltán Melis | Hungary | Rowing | 1968 Summer, 1972 Summer | |
| Ioannis Melissanidis | Greece | Artistic gymnastics | 1996 Summer, 2000 Summer | |
| Luis Felipe Méliz | Cuba, Spain | Athletics | 2000 Summer, 2008 Summer, 2012 Summer | |
| Meselech Melkamu | Ethiopia | 2008 Summer | |
| Kirsten Melkevik Otterbu | Norway | 2008 Summer | |
| Elias Melkman | Netherlands | Artistic gymnastics | 1928 Summer | |
| Pierre Claver Mella | Cameroon | Boxing | 1984 Summer | |
| Emiel Mellaard | Netherlands | Athletics | 1988 Summer | |
| Héctor Mellado | Chile | Road cycling | 1952 Summer | |
| Santiago Mellado | El Salvador | Athletics | 1988 Summer | |
| Frederick Melland | Great Britain | Ice hockey | 1928 Winter | |
| Charmian Mellars | New Zealand | Basketball | 2008 Summer | |
| Pekka Mellavuo | Finland | Wrestling | 1948 Summer | |
| Erik Mellbin | Sweden | Sailing | 1920 Summer | |
| Eivind Melleby | Norway | 2012 Summer | |
| Øystein Mellerud | Ice hockey | 1964 Winter | |
| Dagny Mellgren | Football | 2000 Summer | |
| Sten Mellgren | Sweden | 1924 Summer | |
| Alessandro Melli | Italy | 1992 Summer | |
| Nicolò Melli | Basketball | 2020 Summer | |
| Wilhelm Melliger | Switzerland | Equestrian jumping | 1984 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Abraham Mellinger | United States | Wrestling | 1904 Summer | |
| Matthias Mellinghaus | West Germany | Rowing | 1988 Summer | |
| Al Mello | United States | Boxing | 1924 Summer | |
| Ana Paula Mello | Brazil | Volleyball | 1980 Summer | |
| Anna Vania Mello | Italy | 2000 Summer | |
| Emilio Dutra e Mello | Brazil | Archery | 1980 Summer, 1984 Summer, 1988 Summer, 1992 Summer | |
| Francisco de Mello | Portugal | Sailing | 1992 Summer | |
| Gonçalo Mello | 1960 Summer | |
| Ícaro Mello | Brazil | Athletics | 1936 Summer | |
| Ingeborg Mello | Argentina | 1948 Summer, 1952 Summer | |
| José Mello | Brazil | Shooting | 1936 Summer | |
| Muriel Mellon | United States | Swimming | 1948 Summer | |
| Charles Mellor | Athletics | 1920 Summer, 1924 Summer | |
| Fleur Mellor | Australia | 1956 Summer | |
| Karen Mellor | Great Britain | Swimming | 1988 Summer | |
| Marq Mellor | United States | Field hockey | 1996 Summer | |
| Salusbury Mellor | Great Britain | Sailing | 1900 Summer | |
| Sammy Mellor | United States | Athletics | 1904 Summer | |
| Steven Mellor | Great Britain | Swimming | 1992 Summer | |
| Tom Mellor | United States | Ice hockey | 1972 Winter | |
| Oussama Mellouli | Tunisia | Swimming, Marathon swimming | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Alfred Mellows | Great Britain | Rowing | 1948 Summer | |
| Lars Mellström | Sweden | Boxing | 1928 Summer | |
| Matteo Melluzzo | Italy | Athletics | 2024 Summer | |
| Henrique Melmann | Brazil | Water polo | 1952 Summer | |
| Andrey Melnichenko | Russian Olympic Committee | Cross country skiing | 2018 Winter | |
| Yuriy Melnichenko | Kazakhstan | Wrestling | 1996 Summer, 2000 Summer | |
| Boris Melnik | Soviet Union | Shooting | 1972 Summer, 1976 Summer | |
| Faina Melnik | Athletics | 1972 Summer, 1976 Summer, 1980 Summer | |
| Galina Melnik | Unified Team, Russia | Table tennis | 1992 Summer, 2000 Summer, 2004 Summer | |
| Olga Melnik | Russia | Biathlon | 1998 Winter | |
| Vitaliy Melnik | Soviet Union | Luge | 1988 Winter | |
| Yona Melnik | Israel | Judo | 1976 Summer | |
| Boris Melnikov | Soviet Union | Fencing | 1964 Summer | |
| Nikolay Melnikov | Water polo | 1972 Summer, 1976 Summer | |
| Pavel Melnikov | Russia | Rowing | 1996 Summer, 2000 Summer | |
| Vasily Melnikov | Soviet Union | Alpine skiing | 1964 Winter, 1968 Winter | |
| Viktor Melnikov | Rowing | 1968 Summer | |
| Vyacheslav Melnikov | Alpine skiing | 1956 Winter | |
| Yury Melnikov | Diving | 1960 Summer | |
| Angelina Melnikova | Russia, Russian Olympic Committee | Artistic gymnastics | 2016 Summer, 2020 Summer | |
| Antonina Melnikova | Soviet Union | Canoe sprint | 1980 Summer | |
| Polina Melnikova [ Wikidata ] | Russian Olympic Committee | Alpine skiing | 2022 Winter | |
| Yelena Melnikova | Unified Team | Biathlon | 1992 Winter | |
| Nikolai Melnitsky | Russia | Shooting | 1912 Summer | |
| Hanna Melnychenko | Ukraine | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Alina Melnyk | Rhythmic gymnastics | 2024 Summer | |
| Tetyana Melnyk | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Stanislav Melnykov | 2012 Summer | |
| Alexsandro Melo | Brazil | 2020 Summer | |
| António de Melo | Portugal | Swimming | 1976 Summer | |
| Enrique Melo | Spain | 1972 Summer | |
| Flávio de Melo | Brazil | Rowing | 1988 Summer | |
| Frederico Melo | Portugal | Sailing | 2012 Summer | |
| Luiz Altamir Melo | Brazil | Swimming | 2016 Summer, 2020 Summer | |
| Marcelo Melo | Tennis | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Zé Marco de Melo | Beach volleyball | 1996 Summer, 2000 Summer | |
| Lise Meloche | Canada | Biathlon | 1992 Winter, 1994 Winter | |
| Roberto Meloni | Italy | Judo | 2004 Summer, 2008 Summer, 2012 Summer | |
| Adrián Melosi | Argentina | Equestrian jumping | 1984 Summer | |
| Cody Melphy | United States | Rugby sevens | 2020 Summer | |
| Anouk Mels | Netherlands | Softball | 1996 Summer | |
| Doris Meltzer | Austria | Handball | 2000 Summer | |
| Ashious Melu | Zambia | Football | 1988 Summer | |
| Kiah Melverton | Australia | Swimming | 2020 Summer | |
| Tim Melvill | Great Britain | Polo | 1920 Summer | |
| Douglas Melville | South Africa | Water polo | 1952 Summer | |
| Guy Melville | New Zealand | Rowing | 1992 Summer | |
| Marvin Melville | United States | Alpine skiing | 1956 Winter, 1960 Winter | |
| Miranda Melville | Athletics | 2016 Summer | |
| Pete Melvin | Sailing | 1988 Summer | |
| Roman Melyoshin | Kazakhstan | Wrestling | 2008 Summer | |
| Aleksandra Melzacka | Poland | Sailing | 2020 Summer, 2024 Summer | |
| Hagen Melzer | East Germany, Germany | Athletics | 1988 Summer, 1992 Summer | |
| Jürgen Melzer | Austria | Tennis | 2004 Summer, 2008 Summer, 2012 Summer | |
| Horst Melzig | East Germany | Fencing | 1972 Summer | |
| Dika Mem | France | Handball | 2020 Summer, 2024 Summer | |
| Abdula Memedi | Yugoslavia | Wrestling | 1980 Summer | |
| Herbert Memelink | Netherlands | Shooting | 1984 Summer | |
| Ender Memet | Romania | Wrestling | 1992 Summer, 1996 Summer, 2000 Summer | |
| Eleni Memetzi | Greece | Volleyball | 2004 Summer | |
| Muhamed Memić | Yugoslavia | Handball | 1988 Summer | |
| Furkan Ulaş Memiş | Turkey | Boxing | 2008 Summer | |
| Eldar Memišević | Qatar | Handball | 2016 Summer | |
| Refik Memišević | Yugoslavia | Wrestling | 1980 Summer, 1984 Summer | |
| Chellsie Memmel | United States | Artistic gymnastics | 2008 Summer | |
| Demos Memneloum | Chad | Judo | 2020 Summer, 2024 Summer | |
| La Memo | Indonesia | Rowing | 2016 Summer, 2024 Summer | |
| Raffaella Memo | Italy | 1984 Summer | |
| Luís Mena e Silva | Portugal | Equestrian jumping, Equestrian dressage | 1936 Summer, 1948 Summer, 1960 Summer | |
| Antonela Mena | Argentina | Handball | 2016 Summer | |
| Edwin Mena | Ecuador | Track cycling | 1980 Summer | |
| Jesús Mena | Mexico | Diving | 1988 Summer, 1992 Summer | |
| Manuel Mena | Argentina | Alpine skiing | 1964 Winter | |
| Miguel Mena | Nicaragua | Swimming | 2016 Summer, 2020 Summer | |
| Milagro Mena | Costa Rica | Road cycling | 2016 Summer, 2024 Summer | |
| Omar Mena | Cuba | Athletics | 1996 Summer | |
| Ramón Meña | Panama | Wrestling | 1988 Summer, 1992 Summer | |
| Reynier Mena | Cuba | Athletics | 2016 Summer | |
| Yaima Mena | Diving | 2004 Summer | |
| César Menacho | Bolivia | Shooting | 2008 Summer | |
| Héctor Menacho | Peru | Rowing | 1968 Summer | |
| Djamel Menad | Algeria | Football | 1980 Summer | |
| Marie Menage | Mauritius | Sailing | 1992 Summer | |
| Asma Menaifi | Algeria | Table tennis | 2004 Summer | |
| Ricardo Menalda | Brazil | Fencing | 1992 Summer | |
| Kévin Menaldo | France | Athletics | 2016 Summer | |
| Claude Ménard | 1928 Summer, 1932 Summer | |
| Henri Menard | Rowing | 1924 Summer | |
| Maurice Ménardeau | Art competitions | 1928 Summer | |
| Dino Menardi | Italy | Ice hockey | 1948 Winter | |
| Severino Menardi | Cross country skiing, Nordic combined, Ski jumping | 1932 Winter, 1936 Winter | |
| Austin Menaul | United States | Athletics | 1912 Summer | |
| Menault [ Wikidata ] | France | Swimming | 1900 Summer | |
| Miroslav Menc | Czech Republic | Athletics | 1996 Summer, 2000 Summer | |
| Giovanni Menchi | Italy | Equestrian eventing | 2004 Summer | |
| Marco Menchini | Bobsleigh | 1998 Winter | |
| Denis Menchov | Russia | Road cycling | 2004 Summer, 2008 Summer, 2012 Summer | |
| Sébastian Menci | Argentina | Cross country skiing | 1992 Winter | |
| Armando Mencía | Switzerland | Art competitions | 1932 Summer | |
| Iván Menczel | Hungary | Football | 1968 Summer | |
| Katalin Menczinger | Water polo | 2012 Summer | |
| Janina Mendalska | Poland | Canoe sprint | 1960 Summer | |
| Ingo Mendel | West Germany | Basketball | 1984 Summer | |
| Carolina Mendelblatt | Brazil | Sailing | 2004 Summer | |
| Mark Mendelblatt | United States | 2004 Summer, 2012 Summer | |
| Tamás Mendelényi | Hungary | Fencing | 1960 Summer | |
| Tomasz Mendelski | Poland | Canoe sprint | 2004 Summer, 2008 Summer | |
| Alfredo Mendes | Brazil | Athletics | 1936 Summer | |
| Benedict Mendes | Tanzania | Field hockey | 1980 Summer | |
| Domingos Mendes | Mozambique | Athletics | 1984 Summer | |
| Douglas Mendes [ Wikidata ] | Brazil | 2024 Summer | |
| Georges Mendes | Portugal | Alpine skiing | 1994 Winter | |
| Jaime Mendes | Athletics | 1936 Summer | |
| Jonna Mendes | United States | Alpine skiing | 1998 Winter, 2002 Winter | |
| José Mendes | Portugal | Athletics | 1992 Summer | |
| José Mendes | Road cycling | 2016 Summer | |
| Lei Huang Mendes | Table tennis | 2012 Summer | |
| Luciana Mendes | Brazil | Athletics | 1996 Summer, 2004 Summer | |
| Nicole Mendes | Mexico | Softball | 2020 Summer | |
| Nuno Mendes | Portugal | Rowing | 2008 Summer, 2012 Summer | |
| Laura Méndez Esquer | Spain | Athletics | 2020 Summer | |
| Winston Méndez Montero | Dominican Republic | Boxing | 2008 Summer | |
| Adalberto Mendez | Athletics | 1996 Summer | |
| Alexis Méndez | Venezuela | Track cycling, Road cycling | 1988 Summer, 2000 Summer | |
| Argenis Mendez | Dominican Republic | Boxing | 2004 Summer | |
| Arley Méndez | Chile | Weightlifting | 2020 Summer | |
| Carlos Méndez | Puerto Rico | Judo | 2000 Summer | |
| Diliana Méndez | Venezuela | Shooting | 2008 Summer | |
| Francisco Méndez | Cuba | Weightlifting | 1980 Summer | |
| Héctor Méndez | Argentina | Boxing | 1924 Summer | |
| Javier Méndez | Cuba | Baseball | 2000 Summer | |
| José Méndez | Spain | Rowing | 1960 Summer | |
| Luis Méndez | Uruguay | Boxing | 1992 Summer | |
| Luis Méndez | Shooting | 2000 Summer | |
| Luis Enrique Méndez | Cuba | Wrestling | 2000 Summer | |
| Manuel Méndez | Puerto Rico | Sailing | 1996 Summer | |
| Marcelo Méndez | Argentina | Fencing | 1976 Summer | |
| María Teresa Méndez | Spain | Wrestling | 2008 Summer | |
| Melvin Méndez | Puerto Rico | Judo | 1996 Summer, 2000 Summer, 2004 Summer | |
| Norberto Méndez | Argentina | Canoe sprint | 1988 Summer | |
| Omar Méndez | Nicaragua | Boxing | 1984 Summer | |
| Oswaldo Méndez | Guatemala | Equestrian jumping | 1976 Summer, 1980 Summer, 1984 Summer | |
| Pedro Méndez | Spain | Swimming | 1924 Summer | |
| Porfirio Méndez | Paraguay | Athletics | 1988 Summer | |
| Ronald Méndez | Venezuela | Volleyball | 2008 Summer | |
| Sergio Méndez | El Salvador | Football | 1968 Summer | |
| Marta Mendía | Spain | Athletics | 2000 Summer, 2004 Summer | |
| Bakhram Mendibaev | Uzbekistan | Weightlifting | 2012 Summer | |
| Andrés Mendieta | Spain | Football | 1968 Summer | |
| Emilia Mendieta | Argentina | 2008 Summer | |
| Gaizka Mendieta | Spain | 1996 Summer | |
| Widad Mendil | Algeria | Athletics | 2008 Summer | |
| Manuel Mendívil | Mexico | Equestrian eventing | 1964 Summer, 1972 Summer, 1980 Summer | |
| Enrique Mendizábal | Peru | Shooting | 1948 Summer | |
| Félix Mendizábal | Spain | Athletics | 1920 Summer, 1924 Summer | |
| Alu Mendonca | Kenya | Field hockey | 1956 Summer, 1960 Summer, 1964 Summer, 1968 Summer | |
| Bruno Mendonça | Brazil | Judo | 2012 Summer | |
| Bruno Mendonça | Field hockey | 2016 Summer | |
| Eleonora de Mendonça | Athletics | 1984 Summer | |
| Ernesto Mendonça | Portugal | Sailing | 1928 Summer, 1936 Summer | |
| Francisco Mendonça | Shooting | 1924 Summer | |
| Jacira Mendonca | Guinea-Bissau | Wrestling | 2012 Summer | |
| João Paulo Mendonça | Portugal | Judo | 1980 Summer | |
| Julio Mendoza Loor | Ecuador | Equestrian dressage | 2024 Summer | |
| Alyssa Mendoza | United States | Boxing | 2024 Summer | |
| Ana Mendoza | Mexico | Swimming | 1992 Summer | |
| Antonio Mendoza | Philippines | Shooting | 1968 Summer | |
| Armando Mendoza | Venezuela | Boxing | 1968 Summer | |
| Beibis Mendoza | Colombia | 1996 Summer | |
| Carolina Mendoza | Mexico | Volleyball | 1968 Summer | |
| Carolina Mendoza | Diving | 2012 Summer, 2020 Summer | |
| César Mendoza | Chile | Equestrian jumping | 1952 Summer | |
| Daniela Álvarez Mendoza | Spain | Beach volleyball | 2024 Summer | |
| Ed Mendoza | United States | Athletics | 1976 Summer | |
| Gabriel Mendoza | Peru | 1936 Summer | |
| Graciela Mendoza | Mexico | 1992 Summer, 1996 Summer, 2000 Summer | |
| Grisel Mendoza | Swimming | 1972 Summer | |
| Guillermo Mendoza | Track cycling | 1968 Summer | |
| Ignacio Mendoza | Shooting | 1960 Summer | |
| Jessica Mendoza | United States | Softball | 2004 Summer, 2008 Summer | |
| Jonny Mendoza | Venezuela | Boxing | 2004 Summer | |
| José Mendoza | Honduras | Football | 2012 Summer | |
| Luciana Mendoza | Argentina | Handball | 2016 Summer | |
| Mario Mendoza | Belize | Weightlifting | 1968 Summer | |
| Mario Mendoza | Guatemala | Boxing | 1968 Summer | |
| Miguel Mendoza | Philippines | Swimming | 2000 Summer, 2004 Summer | |
| Rigoberto Mendoza | Cuba | Athletics | 1976 Summer | |
| Rogelio Mendoza | Mexico | Artistic gymnastics | 1968 Summer, 1972 Summer | |
| Rolando Mendoza | Nicaragua | Athletics | 1968 Summer | |
| Ruben Mendoza | United States | Football | 1952 Summer, 1956 Summer | |
| Saúl Mendoza | Bolivia | Fencing | 1984 Summer | |
| Valeria Arboleda Mendoza [ Wikidata ] | Colombia | Boxing | 2024 Summer | |
| Adam Mendrek | Czech Republic | Badminton | 2024 Summer | |
| Tomasz Mendrek | Czechoslovakia | 1992 Summer | |
| Albert Menduni | France | Boxing | 1968 Summer | |
| Christophe Mendy | 1996 Summer | |
| Claudine Mendy | Handball | 2012 Summer | |
| Domingo Mendy | Uruguay | Fencing | 1924 Summer | |
| Gisèle Mendy | Senegal | Judo | 2008 Summer | |
| Ignacio Mendy | Argentina | Rugby sevens | 2020 Summer | |
| Jean-Paul Mendy | France | Boxing | 1996 Summer | |
| Louis François Mendy | Senegal | Athletics | 2020 Summer, 2024 Summer | |
| Pedro Mendy | Uruguay | Fencing | 1924 Summer | |
| Nurlan Mendygaliyev | Soviet Union | Water polo | 1988 Summer | |
| Christophe Meneau | France | Volleyball | 1988 Summer, 1992 Summer | |
| Umberto Menegalli | Switzerland | Fencing | 1952 Summer | |
| Marta Menegatti | Italy | Beach volleyball | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Aurelio Menegazzi | Track cycling | 1924 Summer | |
| Mario Meneghetti | Football | 1920 Summer | |
| Andrea Meneghin | Bobsleigh | 1984 Winter, 1988 Winter | |
| Andrea Meneghin | Basketball | 2000 Summer | |
| Dino Meneghin | 1972 Summer, 1976 Summer, 1980 Summer, 1984 Summer | |
| Elisa Meneghini | Artistic gymnastics | 2016 Summer | |
| Daniela Menegon | Eswatini | Swimming | 1996 Summer | |
| Abelardo Menéndez | Cuba | Fencing | 1952 Summer, 1960 Summer | |
| Alfonso Menéndez | Spain | Archery | 1992 Summer | |
| Ana Amelia Menéndez | Athletics | 1996 Summer | |
| Herminio Menéndez | Canoe sprint | 1972 Summer, 1976 Summer, 1980 Summer, 1984 Summer | |
| Javier Menéndez | Fencing | 2008 Summer | |
| Julia Menéndez | Field hockey | 2008 Summer | |
| Osleidys Menéndez | Cuba | Athletics | 2000 Summer, 2004 Summer, 2008 Summer | |
| Ricardo Menéndez | El Salvador | Shooting | 1968 Summer | |
| Roberto Menéndez | Cuba | Road cycling, Track cycling | 1968 Summer, 1972 Summer, 1976 Summer | |
| Carlomagno Meneses | Peru | Boxing | 1948 Summer | |
| Joey Meneses | Mexico | Baseball | 2020 Summer | |
| José Meneses | Basketball | 1952 Summer | |
| José Meneses | Guatemala | Athletics | 2000 Summer | |
| Luís de Meneses | Portugal | Equestrian jumping | 1924 Summer | |
| Oscar Meneses | Guatemala | Athletics | 2000 Summer | |
| Wilson Meneses | Colombia | Track cycling | 2004 Summer | |
| Yulitza Meneses | Cuba | Canoe sprint | 2012 Summer | |
| Hans Menet | Switzerland | Athletics | 1968 Summer, 1972 Summer | |
| Evangelos Menexis | Greece | Weightlifting | 1920 Summer | |
| António Menezes | Portugal | Sailing | 1968 Summer | |
| António de Menezes | Fencing | 1920 Summer, 1924 Summer, 1936 Summer | |
| Eduardo Menezes | Brazil | Equestrian jumping | 2016 Summer | |
| Eloy de Menezes | 1948 Summer, 1952 Summer, 1956 Summer | |
| Helena de Menezes | Athletics | 1948 Summer, 1952 Summer | |
| João Menezes | Tennis | 2020 Summer | |
| Jude Menezes | India | Field hockey | 2000 Summer | |
| Marcela Menezes | Brazil | Rhythmic gymnastics | 2008 Summer | |
| Ronald Menezes | Swimming | 1984 Summer | |
| Sarah Menezes | Judo | 2008 Summer, 2012 Summer, 2016 Summer | |
| Sérgio Menezes | Athletics | 1988 Summer, 1992 Summer | |
| Thaísa Menezes | Volleyball | 2008 Summer, 2012 Summer, 2016 Summer, 2024 Summer | |
| Valeska Menezes | 2004 Summer, 2008 Summer | |
| Meng Fanlong | China | Boxing | 2012 Summer | |
| Meng Fanqi | Biathlon | 2022 Winter | |
| Meng Gang | Shooting | 1988 Summer, 1992 Summer, 1996 Summer | |
| Meng Guanliang | Canoe sprint | 2004 Summer, 2008 Summer | |
| Heini Meng | Switzerland | Ice hockey | 1928 Winter | |
| Meng Jie | China | Fencing | 2000 Summer, 2004 Summer | |
| Meng Lang | Road cycling | 2008 Summer | |
| Meng Lili | Wrestling | 2004 Summer | |
| Meng Lingzhe | 2024 Summer | |
| Meng Lizhi | Field hockey | 2008 Summer | |
| Phang Poh Meng | Malaysia | 1972 Summer | |
| Meng Qiang | China | Wrestling | 2016 Summer | |
| Meng Qianghua | Tennis | 1992 Summer | |
| Meng Suping | Weightlifting | 2016 Summer | |
| Meng Xuguang | Field hockey | 2008 Summer | |
| Meng Yan | Athletics | 2008 Summer | |
| Aleixo-Platini Menga | Germany | 2016 Summer | |
| Vanessa Menga | Brazil | Tennis | 1996 Summer, 2000 Summer | |
| Yusmari Mengana | Cuba | Canoe sprint | 2016 Summer | |
| Achille Mengé | Belgium | Rowing | 1928 Summer | |
| Hans-Joachim Menge | East Germany | Luge | 1984 Winter | |
| Şahin Menge | Turkey | Weightlifting | 1988 Summer | |
| Ernest Mengel | Luxembourg | Football | 1936 Summer | |
| Catherine Menges | United States | Rowing | 1976 Summer | |
| Louis Menges | Football | 1904 Summer | |
| Milkesa Mengesha | Ethiopia | Athletics | 2020 Summer | |
| Roger Menghi | Luxembourg | Fencing | 1976 Summer | |
| Mill Menghini | Australia | Shooting | 1948 Summer | |
| Negousse Mengistou [ Wikidata ] | Ethiopia | Road cycling | 1956 Summer, 1960 Summer | |
| Adolphe Mengotti | Switzerland | Football | 1924 Summer | |
| Gemma Mengual | Spain | Artistic swimming | 2000 Summer, 2004 Summer, 2008 Summer, 2016 Summer | |
| Albert Mengue | Cameroon | Boxing | 2020 Summer | |
| Shi Mengyao | China | Shooting | 2020 Summer | |
| Zhang Mengyu | Taekwondo | 2020 Summer | |
| Shan Mengyuan [ Wikidata ] | Sailing | 2024 Summer | |
| Franco Menichelli | Italy | Artistic gymnastics | 1960 Summer, 1964 Summer, 1968 Summer | |
| Arrigo Menicocci | Rowing | 1956 Summer | |
| Emma Virginia Menicucci [ Wikidata ] | Swimming | 2024 Summer | |
| Sriyani Dhammika Menike | Sri Lanka | Athletics | 1992 Summer | |
| Nawal Meniker | France | 2024 Summer | |
| Joaquín Menini | Argentina, Spain | Field hockey | 2016 Summer, 2024 Summer | |
| Rubén Menini | Argentina | Basketball | 1948 Summer, 1952 Summer | |
| Gabriel Menino | Brazil | Football | 2020 Summer | |
| Argentina Menis | Romania | Athletics | 1972 Summer, 1976 Summer | |
| Carl Menke | Germany | Field hockey | 1936 Summer | |
| Carol Menken-Schaudt | United States | Basketball | 1984 Summer | |
| Aleksandr Menkov | Russia | Athletics | 2012 Summer | |
| Vadim Menkov | Uzbekistan | Canoe sprint | 2008 Summer, 2012 Summer | |
| Nina Menkova | Soviet Union | Equestrian dressage | 1988 Summer | |
| Wilhelm Menne | Germany | Rowing | 1936 Summer | |
| Pietro Mennea | Italy | Athletics | 1972 Summer, 1976 Summer, 1980 Summer, 1984 Summer, 1988 Summer | |
| Pierre-Alain Menneron | France | Bobsleigh | 2006 Winter | |
| Marc Mennessier [ Wikidata ] | Shooting | 1996 Summer | |
| Florian Mennigen | Germany | Rowing | 2008 Summer, 2012 Summer | |
| Petter Menning | Sweden | Canoe sprint | 2016 Summer, 2020 Summer | |
| Jenni Meno | United States | Figure skating | 1992 Winter, 1994 Winter, 1998 Winter | |
| Francisco Menocal | Nicaragua | Athletics | 1968 Summer, 1972 Summer, 1976 Summer | |
| Luiz Cláudio Menon | Brazil | Basketball | 1968 Summer, 1972 Summer | |
| Amewu Mensah | Germany | Athletics | 2000 Summer | |
| Anthony Mensah | Ghana | Football | 1992 Summer | |
| Brobbey Mensah | Athletics | 1964 Summer | |
| Collins Mensah | 1984 Summer | |
| Essul Badu Mensah | Football | 1972 Summer | |
| Joe Mensah | Nigeria | Boxing | 1972 Summer | |
| John Mensah | Ghana | Football | 2004 Summer | |
| Joselle Mensah [ Wikidata ] | Swimming | 2024 Summer | |
| Mary Mensah | Athletics | 1984 Summer | |
| Tompson Mensah | Togo | Road cycling | 1972 Summer | |
| Pops Mensah-Bonsu | Great Britain | Basketball | 2012 Summer | |
| Tamyra Mensah-Stock | United States | Wrestling | 2020 Summer | |
| Daniël Mensch | Netherlands | Rowing | 2004 Summer | |
| Werner Mensching | Germany | Figure skating | 1960 Winter | |
| Ulrich Mense | Sailing | 1964 Summer | |
| Aleksandr Menshchikov | Kazakhstan | Biathlon | 1998 Winter | |
| Aleksandr Menshchikov | Russia | Wrestling | 2000 Summer | |
| Grigory Menshenin | Cross country skiing | 1998 Winter | |
| Tatyana Menshova | Volleyball | 1996 Summer | |
| Jakub Menšík | Czech Republic | Tennis | 2024 Summer | |
| Pavel Menšík | Czechoslovakia | Rowing | 1992 Summer | |
| Barbara Mensing | Germany | Archery | 1996 Summer, 2000 Summer | |
| Jenny Mensing | Swimming | 2012 Summer, 2016 Summer | |
| Lisa Mensink | Netherlands | Triathlon | 2008 Summer | |
| Cornelis Mension | Art competitions | 1932 Summer | |
| Menso Menso | Athletics | 1924 Summer | |
| Wieger Mensonides | Swimming | 1960 Summer, 1964 Summer | |
| Pitha Haningtyas Mentari | Indonesia | Badminton | 2024 Summer | |
| Hubert Menten | Netherlands | Bobsleigh | 1928 Winter | |
| John Menton | Ireland | Athletics | 2000 Summer | |
| Konrád Mentsik | Hungary | Artistic gymnastics | 1968 Summer | |
| Tom Mentzer | Sweden | Bobsleigh | 1972 Winter | |
| Édouard Mény de Marangue | France | Tennis | 1912 Summer | |
| Isaac Menyoli | Cameroon | Cross country skiing | 2002 Winter | |
| Karl-Heinz Menz | East Germany | Biathlon | 1976 Winter | |
| Katharina Menz | Germany | Judo | 2020 Summer, 2024 Summer | |
| Leonie Menzel | Rowing | 2020 Summer, 2024 Summer | |
| Willia Menzel | Belgium | Art competitions | 1928 Summer | |
| Robert Menzies | Australia | Water polo | 1972 Summer | |
| Ewald Menzl | Czechoslovakia | Bobsleigh | 1936 Winter | |
| José Meolans | Argentina | Swimming | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Marco Meoni | Italy | Volleyball | 1996 Summer, 2000 Summer, 2008 Summer | |
| Hanser Meoque | Cuba | Wrestling | 2012 Summer | |
| Primo Meozzi | Italy | Field hockey | 1952 Summer | |
| Kirsty Mepham | Great Britain | Equestrian dressage | 2000 Summer | |
| Madelein Meppelink | Netherlands | Beach volleyball | 2012 Summer, 2016 Summer, 2020 Summer | |
| Marcus Mepstead | Great Britain | Fencing | 2016 Summer, 2020 Summer | |
| Naser Al-Meqlad | Kuwait | Shooting | 2004 Summer, 2008 Summer | |
| Akihiro Mera | Japan | 1988 Summer, 1992 Summer | |
| Raúl Mera | Uruguay | Basketball | 1956 Summer, 1960 Summer | |
| Abdelmalek Merabet | Algeria | Wrestling | 2020 Summer | |
| Nouria Mérah-Benida | Athletics | 1996 Summer, 2000 Summer | |
| Din Meraj | Pakistan | Road cycling, Track cycling | 1956 Summer | |
| Marcel Meran | France | Sailing | 1900 Summer | |
| Boniface Merande | Kenya | Athletics | 1988 Summer, 1992 Summer | |
| Gabrou Merawi | Ethiopia | 1960 Summer, 1968 Summer | |
| Emilio Meraz | Mexico | Fencing | 1948 Summer, 1952 Summer | |
| Carlos Mercader | Uruguay | Modern pentathlon | 1948 Summer | |
| Alberto Mercado | Puerto Rico | Boxing | 1980 Summer | |
| Álvaro Mercado | Colombia | 1984 Summer | |
| César Mercado | Puerto Rico | Athletics | 1984 Summer | |
| Erika Mercado | Argentina | Volleyball | 2020 Summer | |
| Filiberto Mercado | Mexico | Road cycling | 1960 Summer | |
| Gilberto Mercado | Colombia | Weightlifting | 1984 Summer | |
| José Mercado | Mexico | Football | 1948 Summer | |
| José Mercado | Track cycling | 1964 Summer, 1968 Summer | |
| Nicolas Mercado | Colombia | Weightlifting | 1984 Summer | |
| Óscar Mercado | Puerto Rico | Sailing | 1988 Summer, 1992 Summer | |
| Pedro Mercado | Mexico | Fencing | 1928 Summer | |
| Pedro Mercado | Argentina | Equestrian eventing | 1952 Summer | |
| Reinaldo Mercado | Puerto Rico | Boxing | 1968 Summer | |
| Scarleth Mercado | Nicaragua | Weightlifting | 2016 Summer | |
| Segundo Mercado | Ecuador | Boxing | 1988 Summer | |
| Yarimar Mercado | Puerto Rico | Shooting | 2016 Summer, 2020 Summer, 2024 Summer | |
| Carlos Mercali | Argentina | Field hockey | 1948 Summer | |
| Luciano Mercante | Italy | Art competitions | 1936 Summer | |
| Cristopher Crisostomo | Dominican Republic | Baseball | 2020 Summer | |
| Eleoncio Mercedes | Boxing | 1976 Summer | |
| Gabriel Mercedes | Taekwondo | 2004 Summer, 2008 Summer, 2012 Summer | |
| Rafaelito Mercedes [ Wikidata ] | Baseball | 1992 Summer | |
| Sofía Mercedes | Volleyball | 2004 Summer | |
| Carlos Mercenario | Mexico | Athletics | 1988 Summer, 1992 Summer | |
| Jacob Merčep [ Wikidata ] | Australia | Water polo | 2024 Summer | |
| David Mercer | Great Britain | Weightlifting | 1984 Summer, 1988 Summer | |
| David Mercer | Alpine skiing | 1984 Winter | |
| Leroy Mercer | United States | Athletics | 1912 Summer | |
| Ray Mercer | Boxing | 1988 Summer | |
| Sarah Mercer | Great Britain | Artistic gymnastics | 1992 Summer | |
| Stanley C. Mercer | Diving | 1928 Summer | |
| Emilio Merchán | Spain | Canoe sprint | 1996 Summer, 2000 Summer | |
| José María Merchán | Triathlon | 2000 Summer | |
| Robinson Merchán | Venezuela | Road cycling | 1992 Summer | |
| Jack Merchant | United States | Athletics | 1920 Summer, 1924 Summer | |
| Désiré Mérchez | France | Swimming, Water polo | 1900 Summer | |
| Adolphe Mercier | Switzerland | Equestrian dressage | 1924 Summer, 1928 Summer | |
| André Mercier [ Wikidata ] | France | Shooting | 1900 Summer, 1908 Summer | |
| Émile Mercier | Archery | 1900 Summer | |
| Gaston Mercier | Rowing | 1952 Summer, 1956 Summer, 1960 Summer | |
| Gilbert Mercier | Biathlon | 1960 Winter | |
| René Mercier | 1960 Winter | |
| Scott Mercier | United States | Road cycling | 1992 Summer | |
| Ann Mercken | Belgium | Athletics | 1996 Summer | |
| Axel Merckx | Road cycling | 2000 Summer, 2004 Summer | |
| Eddy Merckx | 1964 Summer | |
| Guillaume Merckx | Basketball | 1936 Summer | |
| Francesco Mercoli | Italy | Weightlifting | 1928 Summer | |
| Issam Merdassi | Tunisia | Football | 2004 Summer | |
| Harutyun Merdinyan | Armenia | Artistic gymnastics | 2016 Summer | |
| Behudin Merdović | Yugoslavia | Speed skating | 1984 Winter, 1988 Winter | |
| Luisa Merea | Peru | Volleyball | 1976 Summer | |
| Michael Merecki | United States | Art competitions | 1932 Summer | |
| Bruce Meredith | Virgin Islands | Shooting | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Gertrude Meredith | United States | Figure skating | 1932 Winter | |
| Kenneth Meredith | Australia | Artistic gymnastics | 1988 Summer | |
| Leonard Meredith | Great Britain | Track cycling, Road cycling | 1908 Summer, 1912 Summer, 1920 Summer | |
| Richard Meredith | United States | Ice hockey | 1956 Winter, 1960 Winter | |
| Ron Meredith | South Africa | Water polo | 1952 Summer, 1960 Summer | |
| Rowena Meredith | Australia | Rowing | 2020 Summer, 2024 Summer | |
| Ted Meredith | United States | Athletics | 1912 Summer, 1920 Summer | |
| Wayne Meredith | Ice hockey | 1964 Winter | |
| Valentina Meredova | Turkmenistan | Athletics | 2008 Summer, 2024 Summer | |
| Eugenio Merello | Italy | Water polo | 1964 Summer, 1968 Summer | |
| József Merényi | Hungary | Speed skating | 1952 Winter | |
| Irving Meretsky | Canada | Basketball | 1936 Summer | |
| Konstantinos Meretsolias | Greece | Swimming | 2020 Summer | |
| Deriba Merga | Ethiopia | Athletics | 2008 Summer | |
| Florin Mergea | Romania | Tennis | 2016 Summer | |
| Eric Mergenthaler | Mexico | Sailing | 1984 Summer, 1988 Summer, 1992 Summer | |
| Sarah Mergenthaler | United States | 2008 Summer | |
| Aselefech Mergia | Ethiopia | Athletics | 2012 Summer | |
| Juan Merheb | Puerto Rico | Track cycling | 1996 Summer | |
| Fawzi Merhi | Lebanon | Fencing | 1972 Summer | |
| Amar Meridja | Algeria | Judo | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Mohamed Meridja | 1988 Summer | |
| Daniela Merighetti | Italy | Alpine skiing | 2006 Winter, 2010 Winter, 2014 Winter | |
| Lucien Mérignac | France | Fencing | 1900 Summer | |
| Marcel Mérignargues | Art competitions | 1928 Summer, 1932 Summer | |
| Aarre Merikanto | Finland | 1948 Summer | |
| Daniel Mérillon | France | Shooting | 1908 Summer, 1912 Summer | |
| Päivi Meriluoto | Finland | Archery | 1980 Summer, 1984 Summer, 1988 Summer | |
| José Antonio Merín | Spain | Rowing | 1992 Summer, 1996 Summer | |
| Delvine Relin Meringor | Romania | Athletics | 2024 Summer | |
| Delfina Merino | Argentina | Field hockey | 2012 Summer, 2016 Summer, 2020 Summer | |
| Julia Merino | Spain | Athletics | 1992 Summer | |
| Mikel Merino | Football | 2020 Summer | |
| Nuno Merino [ Wikidata ] | Portugal | Trampolining | 2004 Summer | |
| Rolando Meriño | Cuba | Baseball | 2000 Summer, 2008 Summer | |
| Emanuele Merisi | Italy | Swimming | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Nikol Merizaj | Albania | 2016 Summer, 2020 Summer | |
| Richard Merjan | Lebanon | Canoe slalom | 2016 Summer | |
| Klaus Merk | Germany | Ice hockey | 1994 Winter, 1998 Winter | |
| Larisa Merk | Russia | Rowing | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Sibylle Merk | Germany | Sailing | 1996 Summer | |
| Waldemar Merk | Poland | Canoe sprint | 1980 Summer | |
| Alexandros Merkati | France | Golf | 1900 Summer | |
| Crawford Merkel | United States | Bobsleigh | 1936 Winter | |
| Reinhard Merkel | West Germany | Swimming | 1968 Summer | |
| Sven Merkel | Hong Kong | Sailing | 1992 Summer | |
| Theo Merkel | West Germany | Biathlon | 1968 Winter, 1972 Winter | |
| Toni Merkens | Germany | Track cycling | 1936 Summer | |
| Jean-Claude Merkes | France | Field hockey | 1968 Summer | |
| Algimantas Merkevičius | Lithuania | Judo | 1996 Summer | |
| Nancy Merki | United States | Swimming | 1948 Summer | |
| Josef Merkle [ Wikidata ] | Germany | Wrestling | 1912 Summer | |
| Mark Merklein | Bahamas | Tennis | 2000 Summer, 2004 Summer | |
| Petar Merkov | Bulgaria | Canoe sprint | 1996 Summer, 2000 Summer, 2004 Summer | |
| Robert Merkulov | Soviet Union | Speed skating | 1956 Winter | |
| Inessa Merkulova | Russia, Russian Olympic Committee | Equestrian dressage | 2016 Summer, 2020 Summer | |
| Nina Merkulova | Soviet Union | Alpine skiing | 1968 Winter, 1972 Winter | |
| Yulia Merkulova | Russia | Volleyball | 2008 Summer, 2012 Summer | |
| Valeria Merkusheva | Russian Olympic Committee | Ice hockey | 2022 Winter | |
| Anastasiya Merkushyna | Ukraine | Biathlon | 2018 Winter, 2022 Winter | |
| Iryna Merkushyna | 1998 Winter | |
| Brigitte Merlano | Colombia | Athletics | 2012 Summer, 2016 Summer | |
| Antoine Merle | France | Wrestling | 1948 Summer, 1952 Summer | |
| Audrey Merle | Triathlon | 2016 Summer | |
| Carole Merle | Alpine skiing | 1984 Winter, 1988 Winter, 1992 Winter, 1994 Winter | |
| Iryna Merleni | Ukraine | Wrestling | 2004 Summer, 2008 Summer, 2012 Summer | |
| Danio Merli | Italy | Canoe sprint | 1976 Summer, 1980 Summer | |
| Reidar Merli | Norway | Wrestling | 1948 Summer, 1952 Summer | |
| Alessandra Merlin | Italy | Alpine skiing | 1998 Winter | |
| Barbara Merlin | 1992 Winter, 1994 Winter, 1998 Winter | |
| Ernest Merlin | Great Britain | Road cycling | 1912 Summer | |
| Gerald Merlin | Shooting | 1908 Summer | |
| Giuseppe Merlin | Italy | Weightlifting | 1924 Summer | |
| Sidney Merlin | Great Britain | Shooting | 1896 Summer, 1900 Summer | |
| Carmelo Merlo | Argentina | Fencing | 1924 Summer, 1932 Summer, 1936 Summer | |
| Rick Merlo | United States | Water polo | 2008 Summer | |
| Silvio Merlo | Argentina | Sailing | 1948 Summer | |
| Cristóbal Merlos | El Salvador | Archery | 2000 Summer | |
| Juan Alberto Merlos | Argentina | Track cycling, Road cycling | 1964 Summer, 1968 Summer | |
| Ricardo Merlos | El Salvador | Archery | 2004 Summer | |
| Jean Mermet | France | Cross country skiing | 1952 Winter, 1956 Winter, 1960 Winter | |
| Louis Mermillod | Switzerland | Track cycling | 1924 Summer | |
| Thomas Mermillod-Blondin | France | Alpine skiing | 2010 Winter, 2014 Winter, 2018 Winter | |
| Yves Mermod [ Wikidata ] | Switzerland | Sailing | 2024 Summer | |
| Fernand Mermoud | France | Cross country skiing | 1936 Winter | |
| Robert Mermoud | Switzerland | Water polo | 1928 Summer, 1936 Summer | |
| Erkan Mermut [ Wikidata ] | Turkey | Alpine skiing | 1984 Winter | |
| Eduard Meron | Israel | Weightlifting | 1960 Summer | |
| Risto Meronen | Finland | Boxing | 1968 Summer | |
| Adrian Meronk | Poland | Golf | 2020 Summer, 2024 Summer | |
| Monday Merotohun | Nigeria | Table tennis | 2004 Summer, 2008 Summer | |
| Christoforos Merousis | Greece | Athletics | 2016 Summer | |
| Craig Merren | Cayman Islands | Road cycling | 1984 Summer, 1988 Summer, 1992 Summer | |
| Perry Merren | 1988 Summer | |
| Faustine Merret | France | Sailing | 2004 Summer, 2008 Summer | |
| Ned Merriam | United States | Athletics | 1908 Summer | |
| Robert Merrick | Sailing | 2000 Summer | |
| John Merricks | Great Britain | 1996 Summer | |
| Lee Merrien | Athletics | 2012 Summer | |
| Janus van Merrienboer | Netherlands | Archery | 1920 Summer | |
| W. G. Merrifield [ Wikidata ] | Great Britain | Artistic gymnastics | 1908 Summer | |
| Knud Merrild | Denmark | Art competitions | 1924 Summer, 1932 Summer | |
| Christine Sonali Merrill | Sri Lanka | Athletics | 2012 Summer | |
| Gretchen Merrill | United States | Figure skating | 1948 Winter | |
| Jan Merrill | Athletics | 1976 Summer | |
| Leland Merrill | Wrestling | 1948 Summer | |
| Frederick Merriman | Great Britain | Tug of war | 1908 Summer | |
| Gregory Merriman | Australia | Figure skating | 2014 Winter | |
| John Merriman | Great Britain | Athletics | 1960 Summer | |
| Ronald Merriott | United States | Diving | 1984 Summer | |
| Aries Merritt | Athletics | 2012 Summer | |
| Bruce Merritt | Canoe sprint | 1984 Summer, 1988 Summer | |
| LaShawn Merritt | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| George Merry | Canada | Alpine skiing | 1952 Winter | |
| Katharine Merry | Great Britain | Athletics | 1996 Summer, 2000 Summer | |
| Mustafa Merry | Morocco | Football | 1984 Summer | |
| Olivia Merry | New Zealand | Field hockey | 2016 Summer, 2020 Summer | |
| Alice Merryweather | United States | Alpine skiing | 2018 Winter | |
| Hatem Mersal | Egypt | Athletics | 2000 Summer | |
| Mahmoud Mersal | Boxing | 1964 Summer | |
| Nafi Mersal | Athletics | 1984 Summer | |
| Sayed Mersal | Boxing | 1964 Summer | |
| Charles Mersch | Luxembourg | Water polo | 1928 Summer | |
| François Mersch | Athletics | 1936 Summer | |
| Henri Mersch | Weightlifting | 1960 Summer | |
| Karl-Heinz Merschenz | Canada | Athletics | 1968 Summer, 1972 Summer | |
| Osman Mert | Turkey | Weightlifting | 1972 Summer | |
| Terhi Mertanen | Finland | Ice hockey | 2002 Winter, 2006 Winter, 2010 Winter | |
| Heinz Mertel | West Germany | Shooting | 1968 Summer, 1972 Summer, 1976 Summer | |
| Christa Merten | Athletics | 1972 Summer | |
| Ken Merten | United States | Swimming | 1968 Summer | |
| Elise Mertens | Belgium | Tennis | 2020 Summer | |
| Ewald Mertens | Germany | Athletics | 1936 Summer | |
| Lukas Mertens | Handball | 2024 Summer | |
| Michael Mertens | Athletics | 1996 Summer, 2000 Summer | |
| Michel Mertens | Luxembourg | Weightlifting | 1920 Summer, 1924 Summer | |
| Julien Mertine | France | Fencing | 2020 Summer, 2024 Summer | |
| Tomáš Mertl | Czech Republic | Ice hockey | 2018 Winter | |
| Rowel Merto | Philippines | Archery | 1988 Summer | |
| Štěpánka Mertová | Czechoslovakia | Athletics | 1956 Summer, 1960 Summer | |
| Brigitte Mertz | East Germany | Swimming | 1972 Summer | |
| Anna Merveldt | Ireland | Equestrian dressage | 1992 Summer, 2012 Summer | |
| Glen Mervyn | Canada | Rowing | 1960 Summer | |
| Jan van der Merwe | South Africa | Wrestling | 1936 Summer | |
| David Merwin | United States | Canoe sprint | 1956 Summer | |
| Patricia Merz | Switzerland | Rowing | 2020 Summer | |
| Robert Merz | Austria | Football | 1912 Summer | |
| Sue Merz | United States | Ice hockey | 1998 Winter, 2002 Winter | |
| William Merz | Artistic gymnastics | 1904 Summer | |
| Ali Merza | Bahrain | Handball | 2020 Summer | |
| Hasan Merza | 2020 Summer | |
| Mohamed Merza | 2020 Summer | |
| Mohamed Merzaq | Morocco | Football | 1972 Summer | |
| Chaâbane Merzekane | Algeria | 1980 Summer | |
| Dimitrije Merzlikin | Yugoslavia | Artistic gymnastics | 1936 Summer | |
| Abdelaziz Merzougui | Spain | Athletics | 2012 Summer, 2016 Summer | |
| Arnaldo Mesa | Cuba | Boxing | 1996 Summer | |
| Cándido Mesa | Wrestling | 1992 Summer | |
| Carlos Mesa | Colombia | Track cycling | 1976 Summer | |
| Eusebio Mesa | Spain | Boxing | 1960 Summer | |
| Germán Mesa | Cuba | Baseball | 1992 Summer, 2000 Summer | |
| Liana Mesa | Volleyball | 2004 Summer, 2008 Summer | |
| Mariana Mesa | Colombia | Tennis | 2000 Summer | |
| Marlenis Mesa | Cuba | Rowing | 2000 Summer | |
| Raúl Mesa | Spain | Beach volleyball | 2008 Summer | |
| Víctor Mesa | Cuba | Baseball | 1992 Summer | |
| Mónica Mesalles | Spain | Artistic gymnastics | 2004 Summer | |
| Anwar Mesbah | Egypt | Weightlifting | 1936 Summer | |
| Hesham Mesbah | Judo | 2004 Summer, 2008 Summer, 2012 Summer | |
| Hicham Mesbahi | Morocco | Boxing | 2000 Summer, 2004 Summer, 2008 Summer | |
| Mohamed Mesbahi | 1992 Summer, 1996 Summer, 2000 Summer | |
| Ina Meschik | Austria | Snowboarding | 2010 Winter, 2014 Winter, 2018 Winter | |
| Maya Meschkuleit | Canada | Rowing | 2024 Summer | |
| Rob van Mesdag | Netherlands | 1952 Summer | |
| Marjan Mesec | Yugoslavia | Ski jumping | 1968 Winter, 1972 Winter | |
| Ona Meseguer | Spain | Water polo | 2012 Summer | |
| Amanuel Mesel | Eritrea | Athletics | 2012 Summer, 2016 Summer | |
| Worknesh Mesele | Ethiopia | 2024 Summer | |
| Yasmina Mesfioui | Morocco | Shooting | 2012 Summer | |
| Natalya Meshcheryakova | Unified Team, Russia | Swimming | 1992 Summer, 1996 Summer | |
| Leonid Meshkov | Soviet Union | 1952 Summer | |
| Viktor Meshkov | Track cycling | 1952 Summer | |
| Viktoriia Meshkova | Russian Olympic Committee | Sport climbing | 2020 Summer | |
| Dina Meshref | Egypt | Table tennis | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Nihal Meshref | 1988 Summer, 1992 Summer | |
| Giorgi Meshvildishvili | Azerbaijan | Wrestling | 2024 Summer | |
| Alessia Mesiano | Italy | Boxing | 2024 Summer | |
| Peter Mesiarik | Czechoslovakia | Handball | 1988 Summer, 1992 Summer | |
| Kemal Mešić | Bosnia and Herzegovina | Athletics | 2012 Summer, 2016 Summer | |
| Martin Mesík | Slovakia | Ski jumping | 1998 Winter, 2006 Winter | |
| Ilkka Mesikämmen | Finland | Ice hockey | 1964 Winter | |
| Ahmed Mesilhy | Egypt | Handball | 2020 Summer, 2024 Summer | |
| Lucca Mesinas | Peru | Surfing | 2020 Summer, 2024 Summer | |
| Viktoras Meškauskas | Lithuania | Athletics | 1992 Summer | |
| Rissom Gebre Meskei | Ethiopia | Road cycling | 1972 Summer | |
| Felix Meskens | Belgium | Athletics | 1936 Summer | |
| Tengiz Meskhadze | Georgia | Boxing | 1996 Summer | |
| Leila Meskhi | Soviet Union, Unified Team | Tennis | 1988 Summer, 1992 Summer | |
| Benamar Meskine | Algeria | Boxing | 2004 Summer | |
| Nataša Meškovska | Independent Olympians, North Macedonia | Swimming | 1992 Summer, 1996 Summer | |
| Ossama Meslek | Italy | Athletics | 2024 Summer | |
| Steve Mesler | United States | Bobsleigh | 2006 Winter, 2010 Winter | |
| Jacques Meslier | France | Water polo | 1960 Summer | |
| Henri Meslot | Athletics | 1908 Summer | |
| Gaston Mesmaekers | Belgium | Equestrian jumping | 1924 Summer, 1928 Summer | |
| Joseph Mesmar | Syria | Shooting | 1972 Summer | |
| Romain Mesnil | France | Athletics | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Ruth Enang Mesode | Cameroon | 1980 Summer, 1984 Summer | |
| Freddy Mésot | Belgium | Figure skating | 1924 Winter | |
| Daniel Mesotitsch | Austria | Biathlon | 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter | |
| Denis Mesples | France | Equestrian eventing | 2012 Summer | |
| David Bueno de Mesquita | Netherlands | Art competitions | 1928 Summer | |
| Idalina Mesquita | Brazil | Handball | 2000 Summer, 2004 Summer, 2008 Summer | |
| Mónica Messa | Spain | Basketball | 1992 Summer | |
| Walter Messa | Italy | Diving | 1960 Summer | |
| Sam Messam | New Zealand | Football | 2008 Summer | |
| Naceur Ben Messaoud | Tunisia | Athletics | 1964 Summer | |
| Ali Messaoudi | Algeria | 2016 Summer | |
| Mehdi Messaoudi | Morocco | Wrestling | 2016 Summer | |
| Mohamed Messaoudi | Tunisia | Handball | 2000 Summer | |
| Alfred Messenger | Great Britain | Artistic gymnastics | 1912 Summer | |
| Markus Messenzehl | Germany | Curling | 2002 Winter | |
| Bill Messer | Great Britain | Road cycling | 1936 Summer | |
| Nadine Messerschmidt | Germany | Shooting | 2020 Summer, 2024 Summer | |
| Uwe Messerschmidt | West Germany | Track cycling | 1984 Summer, 1988 Summer | |
| Alfons Messerschmitt | Shooting | 1988 Summer | |
| Lionel Messi | Argentina | Football | 2008 Summer | |
| Manoel Messias | Brazil | Triathlon | 2020 Summer, 2024 Summer | |
| Alessandro Messina | Canada | Road cycling | 1960 Summer | |
| Fabian Messina | Dominican Republic | Football | 2024 Summer | |
| Francesco Messina | Italy | Art competitions | 1936 Summer | |
| Guido Messina | Track cycling | 1952 Summer | |
| Keegan Messing | Canada | Figure skating | 2018 Winter, 2022 Winter | |
| Shep Messing | United States | Football | 1972 Summer | |
| Bertie Messitt | Ireland | Athletics | 1960 Summer | |
| Magali Messmer | Switzerland | Triathlon | 2000 Summer, 2008 Summer | |
| Elmar Messner | Italy | Snowboarding | 1998 Winter | |
| Fritz Messner | Germany | Field hockey | 1936 Summer | |
| Heinrich Messner | Austria | Alpine skiing | 1964 Winter, 1968 Winter, 1972 Winter | |
| Vilim Messner | Yugoslavia | Athletics | 1928 Summer | |
| Willi Messner | Germany | Swimming | 1964 Summer | |
| Barnabé Messomo | Cameroon | Athletics | 1984 Summer | |
| Mahmoud El-Messouti | Syria | Wrestling | 1980 Summer | |
| Mohamed El-Messouti | 1988 Summer | |
| István Messzi | Hungary | Weightlifting | 1988 Summer | |
| Ladislav Měšťan | Czechoslovakia | Canoe slalom | 1972 Summer | |
| Zdeněk Měšťan | 1972 Summer | |
| Hanne Mestdagh | Belgium | Basketball | 2020 Summer | |
| Kim Mestdagh | 2020 Summer | |
| Paul Mestdagh | Volleyball | 1968 Summer | |
| Zdeněk Městecký | Bohemia | Athletics | 1912 Summer | |
| Đula Mešter | Serbia and Montenegro | Volleyball | 1996 Summer, 2000 Summer, 2004 Summer | |
| János Mester | Hungary | Artistic gymnastics | 1960 Summer | |
| Giandomenico Mesto | Italy | Football | 2004 Summer | |
| Dayaris Mestre Álvarez | Cuba | Judo | 2012 Summer, 2016 Summer | |
| Alberto Mestre | Venezuela | Swimming | 1980 Summer, 1984 Summer | |
| Alberto Mestre | 2020 Summer, 2024 Summer | |
| Alfonso Mestre | 2020 Summer, 2024 Summer | |
| Yagnelis Mestre | Cuba | Judo | 2008 Summer | |
| Agustín Mestres | Spain | Water polo | 1948 Summer, 1952 Summer | |
| András Mészáros | Hungary | Road cycling | 1964 Summer, 1968 Summer | |
| Andrej Meszároš | Slovakia | Ice hockey | 2006 Winter, 2010 Winter, 2014 Winter | |
| Anett Mészáros | Hungary | Judo | 2008 Summer, 2012 Summer | |
| Erika Mészáros | Canoe sprint | 1988 Summer, 1992 Summer, 1996 Summer | |
| Ervin Mészáros | Fencing | 1912 Summer | |
| Eszter Mészáros | Shooting | 2020 Summer, 2024 Summer | |
| Gábor Mészáros | Swimming | 1980 Summer | |
| Gabriella Mészáros | Artistic gymnastics | 1936 Summer | |
| György Mészáros | Canoe sprint | 1960 Summer, 1964 Summer | |
| István Mészáros | Weightlifting | 1992 Summer | |
| József Mészáros | Rowing | 1912 Summer | |
| Krisztofer Mészáros | Artistic gymnastics | 2024 Summer | |
| Matej Mészáros | Slovakia | Shooting | 2004 Summer | |
| Miklós Meszéna | Hungary | Fencing | 1964 Summer, 1968 Summer | |
| Géza Mészöly | Shooting | 1912 Summer | |
| Hubert Meta | Papua New Guinea | Boxing | 1992 Summer | |
| Joseph-Auguste Métais [ Wikidata ] | France | Fencing | 1900 Summer | |
| Tamara Metal | Israel | Athletics | 1952 Summer | |
| Michaela Metallidou | Greece | Rhythmic gymnastics | 2016 Summer | |
| Vasilios Metalos [ Wikidata ] | Tug of war | 1904 Summer | |
| Anastasios Metaxas | Shooting | 1896 Summer, 1908 Summer, 1912 Summer | |
| Konstantinos Metaxas | Athletics | 1936 Summer | |
| Georges Metayer | France | Wrestling | 1924 Summer | |
| Harriet Metcalf | United States | Rowing | 1984 Summer | |
| John Metcalf | Great Britain | Athletics | 1960 Summer | |
| Malcolm Metcalf | United States | 1932 Summer, 1936 Summer | |
| Nancy Metcalf | Volleyball | 2004 Summer | |
| Woodbridge Metcalf | Sailing | 1936 Summer | |
| Adrian Metcalfe | Great Britain | Athletics | 1964 Summer | |
| Connor Metcalfe | Australia | Football | 2020 Summer | |
| Jack Metcalfe | Athletics | 1936 Summer | |
| Ralph Metcalfe | United States | 1932 Summer, 1936 Summer | |
| Fyodor Metelkov | Soviet Union | Equestrian jumping | 1960 Summer | |
| Malia Metella | France | Swimming | 2004 Summer, 2008 Summer | |
| Mehdy Metella | 2016 Summer, 2020 Summer | |
| Alain Metellus | Canada | Athletics | 1984 Summer | |
| Philippe Metellus | Haiti | Judo | 2024 Summer | |
| Oussama Methazem | Algeria | Football | 2016 Summer | |
| Linda Metheny | United States | Artistic gymnastics | 1964 Summer, 1968 Summer, 1972 Summer | |
| Sophiane Méthot | Canada | Trampolining | 2024 Summer | |
| Petar Metličić | Croatia | Handball | 2004 Summer, 2008 Summer | |
| Piet Metman | Netherlands | Swimming | 1936 Summer | |
| Vladislav Metodiev | Bulgaria | Wrestling | 2004 Summer | |
| Penka Metodieva | Basketball | 1976 Summer, 1980 Summer | |
| Kim Métraux | Switzerland | Golf | 2020 Summer | |
| Morgane Métraux | 2024 Summer | |
| George Metropoulos | United States | Wrestling | 1920 Summer | |
| Caren Metschuck | East Germany | Swimming | 1980 Summer | |
| Koen Metsemakers | Netherlands | Rowing | 2020 Summer, 2024 Summer | |
| Jukka-Pekka Metsola | Finland | Judo | 1988 Summer | |
| Arnold Mettler | Switzerland | Equestrian jumping | 1936 Summer | |
| Barbara Mettler | Cross country skiing | 1992 Winter, 1994 Winter | |
| Bill Mettler | United States | Swimming | 1964 Summer | |
| Chimezie Metu | Nigeria | Basketball | 2020 Summer | |
| Obinna Metu | Athletics | 2008 Summer, 2012 Summer | |
| Eloi Metullus | Haiti | Shooting | 1924 Summer | |
| Abdel Latif Metwalli | Egypt | Rowing | 1964 Summer | |
| Amrou Metwalli | Field hockey | 2004 Summer | |
| Ibrahim Metwalli | Rowing | 1964 Summer | |
| Mohamed Metwally | Wrestling | 2020 Summer, 2024 Summer | |
| Mazen Metwaly | Marathon swimming | 2012 Summer | |
| Gert Metz | West Germany | Athletics | 1968 Summer | |
| Lothar Metz | Germany, East Germany | Wrestling | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| Michael Metz | West Germany, Germany | Field hockey | 1988 Summer, 1992 Summer | |
| Paul Metz | Denmark | 1920 Summer | |
| René Metz | France | Athletics | 1972 Summer | |
| Stefan Metz | West Germany | Ice hockey | 1976 Winter | |
| Karin Metze | East Germany | Rowing | 1976 Summer, 1980 Summer | |
| Alex Metzger | Germany | Bobsleigh | 2006 Winter | |
| Manfred Metzger | Switzerland | Sailing | 1960 Summer | |
| Stein Metzger | United States | Beach volleyball | 2004 Summer | |
| Thomas Metzger | Austria | Equestrian jumping | 1996 Summer | |
| Bernd Metzke | East Germany | Handball | 1988 Summer | |
| Max Metzker | Australia | Swimming | 1976 Summer, 1980 Summer | |
| Hans Metzler | West Germany | Bobsleigh | 1984 Winter | |
| Léon Metzler | Luxembourg | Football | 1920 Summer | |
| Whitney Metzler | United States | Swimming | 1996 Summer | |
| Adolf Metzner | Germany | Athletics | 1932 Summer, 1936 Summer | |
| Miroslav Metzner-Fritz | Yugoslavia | Wrestling | 1928 Summer | |
| Fritzi Metznerová | Czechoslovakia | Figure skating | 1936 Winter | |
| Daniele Meucci | Italy | Athletics | 2012 Summer, 2016 Summer, 2024 Summer | |
| Ilse Meudtner | Germany | Diving | 1928 Summer | |
| Clémentine Meukeugni | Cameroon | Weightlifting | 2020 Summer | |
| Georgette Meulebroeck | France | Artistic gymnastics | 1928 Summer | |
| August Meuleman | Belgium | Track cycling | 1928 Summer | |
| Craig Meuleman [ Wikidata ] | Australia | Shooting | 1996 Summer | |
| Jean De Meulemeester | Belgium | Sailing | 1952 Summer | |
| Michel De Meulemeester | Rowing | 1964 Summer | |
| Gejus van der Meulen | Netherlands | Football | 1924 Summer, 1928 Summer | |
| Olof van der Meulen | Volleyball | 1992 Summer, 1996 Summer | |
| Van Der Meulen [ Wikidata ] | Belgium | Equestrian jumping | 1900 Summer | |
| Judith Meulendijks | Netherlands | Badminton | 2000 Summer | |
| Hans Meulengracht-Madsen | Denmark | Sailing | 1912 Summer | |
| Delia Meulenkamp | United States | Swimming | 1952 Summer | |
| Hensley Meulens | Netherlands | Baseball | 2000 Summer | |
| Daniela Meuli | Switzerland | Snowboarding | 2002 Winter, 2006 Winter | |
| Helge Meuller | Sweden | Shooting | 1936 Summer | |
| Édouard Meunier | France | Track cycling | 1924 Summer | |
| Jean-Claude Meunier | Road cycling | 1972 Summer | |
| Laurent Meunier | Ice hockey | 2002 Winter | |
| Willi Meurer | Germany | Road cycling | 1936 Summer | |
| Friedrich Meuring | Netherlands | Swimming | 1908 Summer | |
| Julien Meuris | Belgium | Basketball | 1948 Summer, 1952 Summer | |
| Augustin Meurmans | Field hockey | 2020 Summer | |
| de Meuse [ Wikidata ] | France | Fencing | 1900 Summer | |
| Dirk Meusel | Germany | Rowing | 2000 Summer | |
| Odette Meuter | Belgium | Shooting | 1976 Summer, 1980 Summer | |
| Elisa Mevius | Germany | 3x3 basketball | 2024 Summer | |
| Darren Mew | Great Britain | Swimming | 2000 Summer, 2004 Summer | |
| Sheoo Mewalal | India | Football | 1948 Summer | |
| Rick Mewborn | United States | Ski jumping | 1988 Winter | |
| Geri Mewett | Bermuda | Swimming | 1992 Summer | |
| Jozef Mewis | Belgium | Wrestling | 1952 Summer, 1956 Summer, 1960 Summer, 1964 Summer | |
| Julien Mewis | 1976 Summer, 1980 Summer | |
| Kristie Mewis | United States | Football | 2020 Summer | |
| Maurice Mewis | Belgium | Wrestling | 1952 Summer, 1956 Summer, 1960 Summer, 1964 Summer | |
| Sam Mewis | United States | Football | 2020 Summer | |
| Abdon Mewoli | Cameroon | Boxing | 2012 Summer | |
| Karin Melis Mey | Turkey | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Uwe-Jens Mey | East Germany, Germany | Speed skating | 1984 Winter, 1988 Winter, 1992 Winter | |
| Luis Meya | Spain | Water polo | 1968 Summer | |
| Herman Meyboom | Belgium | Swimming, Water polo | 1908 Summer, 1912 Summer | |
| Ria Meyburg | Netherlands | Artistic gymnastics | 1960 Summer | |
| Axel Méyé | Gabon | Football | 2012 Summer | |
| Dominique Méyépa | Mauritius | Athletics | 1996 Summer | |
| Karl Meyer zu Hölsen | West Germany | Shooting | 1968 Summer | |
| Aage Meyer | Denmark | Wrestling | 1928 Summer, 1936 Summer | |
| Adelaide Meyer | United States | Artistic gymnastics | 1936 Summer | |
| Alex Meyer | Marathon swimming | 2012 Summer | |
| Alfred Meyer | Germany | Art competitions | 1932 Summer | |
| Alvah Meyer | United States | Athletics | 1912 Summer | |
| André Meyer | France | Field hockey | 1948 Summer, 1952 Summer | |
| Andreas Meyer | Switzerland | Ice hockey | 1976 Winter | |
| Antoinette Meyer | Alpine skiing | 1948 Winter | |
| Armin Meyer | Argentina | Rowing | 1928 Summer | |
| Bill Meyer | Canada | Water polo | 1984 Summer | |
| Cameron Meyer | Australia | Track cycling | 2008 Summer | |
| Carl Meyer | New Zealand | Rowing | 2004 Summer, 2008 Summer | |
| Christian Meyer | Germany | Road cycling | 1992 Summer | |
| Cindy Meyer | South Africa | Short track speed skating | 1994 Winter | |
| Cynthia Meyer | Canada | Shooting | 1996 Summer, 2000 Summer, 2004 Summer, 2016 Summer | |
| David Meyer | Belgium | Ice hockey | 1928 Winter | |
| Debbie Meyer | United States | Swimming | 1968 Summer | |
| Dirk Meyer | West Germany | Sailing | 1984 Summer, 1988 Summer | |
| Elana Meyer | South Africa | Athletics | 1992 Summer, 1996 Summer, 2000 Summer | |
| Ernest Meyer | France | Equestrian jumping, Equestrian eventing | 1912 Summer | |
| Fabienne Meyer | Switzerland | Bobsleigh | 2010 Winter, 2014 Winter | |
| François Meyer | France | Wrestling | 1920 Summer | |
| Fred Meyer | United States | 1920 Summer | |
| Fred Meyer | Artistic gymnastics | 1932 Summer, 1936 Summer | |
| Fredrik Meyer | Norway | Sailing | 1936 Summer | |
| Gabrielle Meyer | France | Athletics | 1968 Summer | |
| Georg Meyer | Germany | Shooting | 1912 Summer | |
| Georges Meyer | Switzerland | Athletics | 1936 Summer | |
| Geovana Meyer [ Wikidata ] | Brazil | Shooting | 2024 Summer | |
| Hans-Jörg Meyer | Germany | 2008 Summer | |
| Heiko Meyer | Diving | 2000 Summer, 2004 Summer | |
| Horst Meyer | Germany, West Germany | Rowing | 1964 Summer, 1968 Summer | |
| Janne Friederike Meyer | Germany | Equestrian jumping | 2012 Summer | |
| Jayson Meyer | Ice hockey | 1994 Winter | |
| Joe Meyer | New Zealand | Equestrian eventing | 2008 Summer | |
| Joseph Meyer | Switzerland | Rowing | 1928 Summer | |
| Karsten Meyer | Germany, West Germany | Sailing | 1960 Summer, 1964 Summer, 1972 Summer, 1976 Summer | |
| Keith Meyer | United States | Speed skating | 1960 Winter | |
| Klaus Meyer | West Germany | Rowing | 1976 Summer | |
| Kurt Meyer | Shooting | 1968 Summer | |
| Lea Meyer | Germany | Athletics | 2020 Summer, 2024 Summer | |
| Leonie Meyer | Sailing | 2024 Summer | |
| Luis de Meyer | Argentina | Road cycling, Track cycling | 1924 Summer, 1928 Summer | |
| Matthew Meyer | South Africa | Swimming | 2016 Summer | |
| Max Meyer | Germany | Football | 2016 Summer | |
| Michael Meyer | South Africa | Swimming | 2016 Summer | |
| Michel Meyer | France | Canoe sprint | 1956 Summer, 1960 Summer | |
| Nicolai Meyer | Denmark | Ice hockey | 2022 Winter | |
| Otto Meyer | France | Artistic gymnastics | 1900 Summer | |
| Paul Meyer | Switzerland | Rowing | 1952 Summer | |
| Paul Meyer | Zimbabwe | Shooting | 1980 Summer | |
| Philippe Meyer | Switzerland | Swimming | 2000 Summer | |
| Renate Meyer | Germany, West Germany | Athletics | 1964 Summer, 1968 Summer | |
| Roy Meyer | Netherlands | Judo | 2016 Summer | |
| Trudi Meyer | Germany | Artistic gymnastics | 1936 Summer | |
| Walter Meyer | Rowing | 1932 Summer | |
| Werner Meyer | Switzerland | Handball | 1936 Summer | |
| Willi Meyer | West Germany | Diving | 1988 Summer | |
| Susanne Meyerhoff | Denmark | Shooting | 1996 Summer, 2000 Summer, 2004 Summer | |
| Ann Meyers | United States | Basketball | 1976 Summer | |
| Ben Meyers | Ice hockey | 2022 Winter | |
| Elana Meyers Taylor | Bobsleigh | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Elvet Meyers | British Virgin Islands | Sailing | 1984 Summer | |
| Glenn Meyers | United States | Archery | 1984 Summer | |
| John Meyers | Swimming, Water polo | 1904 Summer | |
| Linda Meyers | Alpine skiing | 1960 Winter, 1964 Winter | |
| Mary Meyers | Speed skating | 1968 Winter | |
| Robert Meyers | Canada | Ice hockey | 1952 Winter | |
| William Meyers | South Africa | Boxing | 1960 Summer | |
| Ulrike Meyfarth | West Germany | Athletics | 1972 Summer, 1976 Summer, 1984 Summer | |
| Anne Meygret | France | Fencing | 1984 Summer | |
| Gisèle Meygret | 1988 Summer, 1992 Summer | |
| Olaf Meyland-Smith | Denmark | Road cycling | 1912 Summer | |
| Nicole Meylan-Levecque | Switzerland | Sailing | 1992 Summer, 1996 Summer | |
| Kim Meylemans | Belgium | Skeleton | 2018 Winter, 2022 Winter | |
| Boaz Meylink | Netherlands | Rowing | 2012 Summer, 2016 Summer | |
| Bernard Meynadier | France | 1960 Summer, 1964 Summer | |
| William Meynard | Swimming | 2016 Summer | |
| Julie Meynen | Luxembourg | 2016 Summer, 2020 Summer | |
| Francis Meynieu | France | Football | 1976 Summer | |
| Albert Meyong | Cameroon | 2000 Summer | |
| John Meyrick | Great Britain | Rowing | 1948 Summer | |
| Anna Meysak | Belarus | Artistic gymnastics | 2000 Summer | |
| Joseph Meyten | Belgium | Swimming | 1968 Summer | |
| José Luis Meza | Ecuador | Boxing | 2008 Summer | |
| Marie Meza | Costa Rica | Swimming | 2012 Summer, 2016 Summer | |
| Édouard Mézan de Malartic | France | Sailing | 1900 Summer | |
| Frigyes Mezei | Hungary | Athletics | 1908 Summer, 1912 Summer | |
| Richárd Mezei | Handball | 1992 Summer, 2004 Summer | |
| Tamás Mezei | Water polo | 2020 Summer | |
| Fyodor Mezentsev | Kazakhstan | Speed skating | 2014 Winter, 2018 Winter | |
| Ruslan Mezentsev | Ukraine | Artistic gymnastics | 2000 Summer, 2004 Summer | |
| Vadim Mezga | Belarus | Boxing | 1996 Summer | |
| Assefa Mezgebu | Ethiopia | Athletics | 1996 Summer, 2000 Summer | |
| Luka Mezgec | Slovenia | Road cycling | 2024 Summer | |
| Salamu Mezhidov | Russia | Judo | 2008 Summer | |
| Abderrahmane Meziane | Algeria | Football | 2016 Summer | |
| Mohamed Meziane | Morocco | Weightlifting | 1992 Summer | |
| Noureddine Meziane | Algeria | Boxing | 1988 Summer, 1992 Summer | |
| Maroi Mezien | Tunisia | Wrestling | 2012 Summer | |
| Janko Mežik | Yugoslavia | Ski jumping | 1948 Winter | |
| Andrei Mezin | Belarus | Ice hockey | 1998 Winter, 2002 Winter, 2010 Winter | |
| Zdenek Mezl | Canada | Ski jumping | 1972 Winter | |
| Yassine Mezlini | Tunisia | Volleyball | 1984 Summer | |
| Mitja Mežnar | Slovenia | Ski jumping | 2010 Winter | |
| Zerei Kbrom Mezngi | Norway | Athletics | 2024 Summer | |
| Béla Mező | Hungary | 1904 Summer | |
| Ferenc Mező | Art competitions | 1928 Summer | |
| Tibor Mezőfi | Basketball | 1948 Summer, 1952 Summer | |
| Freddy Mezones | Venezuela | Athletics | 2016 Summer | |
| Karl Mezulian | Austria | Wrestling | 1924 Summer | |
| Diana Mezuliáníková | Czech Republic | Athletics | 2020 Summer | |
| Mate Mezulić | Croatia | Bobsleigh | 2010 Winter, 2018 Winter | |
| Giovanni Mezzani | Italy | Shooting | 1972 Summer, 1976 Summer, 1980 Summer, 1984 Summer | |
| Luca Mezzano | Football | 2000 Summer | |
| Louis-Paul M'Fédé | Cameroon | 1984 Summer | |
| Wilberforce Mfum | Ghana | 1964 Summer | |
| Pascal Mfyomi | Tanzania | Athletics | 1964 Summer | |
| Andisiwe Mgcoyi | South Africa | Football | 2012 Summer | |
| Ishmael Mhaladi | Botswana | Athletics | 1980 Summer | |
| Bilel Mhamdi | Tunisia | Boxing | 2016 Summer | |
| Alaa Mhawi | Iraq | Football | 2016 Summer | |
| Razi Mhiri | Tunisia | Volleyball | 1984 Summer | |