| Name | Gender | Categories | |
|---|
| Javi Martínez | m | Notable Athletes |  |
| Joan Lino Martínez | m | Olympic Medalists | |
| Jonder Martínez | m | Olympic Medalists | |
| Lázaro Martínez | m | Olympic Medalists | |
| María Pilar Martinez | f | Saints | |
| Jerry Martini | m | Rock and Roll Hall-of-Famers | |
| Al Martino | m | Notable Musicians | |
| Angel Martino | f | Olympic Medalists | |
| Harry Martinson | m | Nobel Prize Winners, Notable Writers | |
| Martius | m | Shakespearian Characters | |
| Francisco Marto | m | Saints | |
| Martti Marttelin | m | Olympic Medalists | |
| Stefanie Marty | f | Olympic Medalists | |
| Marullus | m | Shakespearian Characters | |
| Alberto Marvelli | m | Saints | |
| Marvin | m | Fictional Characters from Song Titles | |
| Bess Marvin | f | Fictional Characters from Books | |
| Lee Marvin | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Pauline Marvin | f | Fictional Characters from Movies | |
| Marwan I ibn al-Hakam | m | Islamic Caliphs | |
| Bernard Marx | m | Fictional Characters from Books | |
| Karl Marx | m | Notable Philosophers and Thinkers | |
| Wilhelm Marx | m | German Chancellors and Presidents | |
| Mary | f | Fictional Characters from Song Titles | |
| Mary | f | Biblical Characters | |
| Mary | f | Fictional Characters from Song Titles | |
| Mary | f | Fictional Characters from Song Titles | |
| Mary | f | Fictional Characters from Song Titles | |
| Mary | f | Biblical Characters, Saints | |
| Mary | f | Fictional Characters from Song Titles | |
| Mary | f | Biblical Characters | |
| Mary | f | Fictional Characters from Song Titles | |
| Mary I Queen of Scots | f | Scottish Kings and Queens | |
| Mary I Tudor | f | English and British Kings and Queens | |
| Mary II | f | English and British Kings and Queens, Scottish Kings and Queens | |
| Mary Jane | f | Fictional Characters from Song Titles | |
| Mary Jane | f | Fictional Characters from Song Titles | |
| Mary Magdalene | f | Biblical Characters, Saints | |
| Mary of the Passion | f | Saints | |
| Marzanna | f | Other Mythological Characters | |
| Ando Masahashi | m | Fictional Characters from Television | |
| Pietro Mascagni | m | Notable Musicians | |
| Peer Mascini | m | Notable Actors and Entertainers | |
| Mash | m | Biblical Characters | |
| María Felicidad Masiá Ferragud | f | Saints | |
| María Jesús Masiá Ferragud | f | Saints | |
| María Verónica Masiá Ferragud | f | Saints | |
| Tomas Masiulis | m | Olympic Medalists | |
| Toshihide Maskawa | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Yevgeniy Maskinskov | m | Olympic Medalists | |
| Darius Maskoliūnas | m | Olympic Medalists | |
| Lyudmila Maslakova | f | Olympic Medalists | |
| Mason | m | Fictional Characters from Movies, Fictional Characters from Television | |
| Margery Mason | f | Notable Actors and Entertainers | |
| Josef Masopust | m | Notable Athletes | |
| Massa | m | Biblical Characters | |
| Valentí Massana | m | Olympic Medalists | |
| Jules Massenet | m | Notable Musicians | |
| William Massey | m | New Zealand Prime Ministers | |
| Nick Massi | m | Rock and Roll Hall-of-Famers | |
| Carlos Domingos Massoni | m | Olympic Medalists | |
| Rie Mastenbroek | f | Notable Athletes, Olympic Medalists | |
| Danny Masterson | m | Notable Actors and Entertainers | |
| June Maston | f | Olympic Medalists | |
| Práxedes Mateo Sagasta | m | Spanish Prime Ministers | |
| Math | m | Characters in Celtic Mythology | |
| John C. Mather | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Marshall "Eminem" Mathers | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Eddie Mathews | m | Hall-of-Famers, Notable Athletes | |
| Marlene Mathews | f | Olympic Medalists | |
| Christy Mathewson | m | Hall-of-Famers, Notable Athletes | |
| Bob Mathias | m | Olympic Medalists | |
| Duchess Mathilde Ludovika in Bavaria | f | Other Royalty | |
| Mathilde of Belgium | f | Other Royalty | |
| Matilda | f | Fictional Characters from Song Titles | |
| Matilda | f | Fictional Characters from Song Titles | |
| Matilde of the Sacred Heart | f | Saints | |
| Henri Matisse | m | Notable Artists | |
| Marlee Matlin | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Ben Matlock | m | Fictional Characters from Television | |
| Charlene Matlock | f | Fictional Characters from Television | |
| Glen Matlock | m | Rock and Roll Hall-of-Famers | |
| Matri | m | Biblical Characters | |
| Ollie Matson | m | Hall-of-Famers, Olympic Medalists | |
| Randy Matson | m | Olympic Medalists | |
| Matsuo Bashō | m | Notable Writers | |
| Matt | m | Fictional Characters from Books | |
| Mattan | m | Biblical Characters | |
| Mattan | m | Biblical Characters | |
| Sergio Mattarella | m | Italian Presidents and Prime Ministers | |
| Mattatha | m | Biblical Characters | |
| Mattathias | m | Biblical Characters | |
| Mattathias | m | Biblical Characters | |
| Mattattah | m | Biblical Characters | |
| Matthan | m | Biblical Characters | |
| Matthat | m | Biblical Characters | |
| Matthat | m | Biblical Characters | |
| Walter Matthau | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Faidon Mattheou | m | Notable Athletes | |
| Matthew Gam Van Le | m | Saints | |
| Matthew Rhys | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Matthew the Evangelist | m | Biblical Characters, Saints | |
| Alan Matthews | m | Fictional Characters from Television | |
| Amy Matthews | f | Fictional Characters from Television | |
| Bruce Matthews | m | Hall-of-Famers | |
| Eric Matthews | m | Fictional Characters from Television | |
| Josh Matthews | m | Fictional Characters from Television | |
| Ken Matthews | m | Olympic Medalists | |
| Margaret Matthews | f | Olympic Medalists | |
| Morgan Matthews | f | Fictional Characters from Television | |
| Stanley Matthews | m | Notable Athletes | |
| Vince Matthews | m | Olympic Medalists | |
| Wade Matthews | m | Fictional Characters from Television | |
| Matthias | m | Biblical Characters, Saints | |
| Don Mattingly | m | Most Valuable Players, Notable Athletes | |
| Sergio Matto | m | Olympic Medalists | |
| Jurgis Matulaitis-Matulevičius | m | Saints | |
| Matthias | m | Austrian Dukes and Emperors, Bohemian Kings, German Kings and Holy Roman Emperors, Hungarian Kings and Queens | |
| Francis Xavier Mau | m | Saints | |
| Joe Mauer | m | Most Valuable Players, Notable Athletes | |
| Maura of Antinoe | f | Saints | |
| Lea Maurer | f | Olympic Medalists | |
| François Mauriac | m | Nobel Prize Winners, Notable Writers | |
| Maurice | m | Fictional Characters from Books | |
| Maurus of Nitra | m | Saints | |
| Alexandros Mavrokordatos | m | Greek Prime Ministers | |
| Stylianos Mavromichalis | m | Greek Prime Ministers | |
| Kevin Mawae | m | Hall-of-Famers | |
| Douglas Mawson | m | Notable Explorers and Adventurers | |
| Máxima of the Netherlands | f | Other Royalty | |
| Olympe Maxime | f | Harry Potter Characters | |
| Maximilian I | m | Austrian Dukes and Emperors, German Kings and Holy Roman Emperors | |
| Maximilian of Baden | m | German Chancellors and Presidents | |
| Maximinus | m | Saints | |
| Maximus of Aquila | m | Saints | |
| Louis W. Maxson | m | Olympic Medalists | |
| Maxwell | m | Fictional Characters from Song Titles | |
| Maxwell | m | Notable Athletes | |
| Frederick George "Steamer" Maxwell | m | Hall-of-Famers | |
| Molly Maxwell | f | Fictional Characters from Movies | |
| May | f | Fictional Characters from Books | |
| Brian May | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| James May | m | Notable Actors and Entertainers | |
| Jonny May | m | Notable Athletes | |
| Willie May | m | Olympic Medalists | |
| Rik Mayall | m | Notable Actors and Entertainers | |
| John Mayer | m | Grammy Award Winners, Notable Musicians | |
| Mihály Mayer | m | Olympic Medalists | |
| Adam Mayfair | m | Fictional Characters from Television | |
| Dylan Mayfair | f | Fictional Characters from Television | |
| Curtis Mayfield | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Rose Maylie | f | Fictional Characters from Books | |
| Don Maynard | m | Hall-of-Famers | |
| Willie Mays | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Floyd Mayweather Jr. | m | Notable Athletes, Olympic Medalists | |
| Debi Mazar | f | Notable Actors and Entertainers | |
| Bill Mazeroski | m | Hall-of-Famers, Notable Athletes | |
| Tadeusz Mazowiecki | m | Polish Presidents and Prime Ministers | |
| Maria Domenica Mazzarello | f | Saints | |
| Pascoal Ranieri Mazzilli | m | Brazilian Presidents | |
| Giovanni Battista Mazzucconi | m | Saints | |
| Bob McAdoo | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| George McAfee | m | Hall-of-Famers | |
| Mary McAleese | f | Irish Presidents and Prime Ministers | |
| Ken McArthur | m | Olympic Medalists | |
| James McAvoy | m | Notable Actors and Entertainers | |
| Ally McBeal | f | Fictional Characters from Television | |
| Tom McBreen | m | Olympic Medalists | |
| Frank McCabe | m | Olympic Medalists | |
| Pete McCaffrey | m | Olympic Medalists | |
| John McCain | m | Notable Politicians and Statespeople | |
| Davina McCall | f | Notable Actors and Entertainers | |
| Charles McCallister | m | Olympic Medalists | |
| Kevin McCallister | m | Fictional Characters from Movies | |
| Ben McCalman | m | Notable Athletes | |
| Mercedes McCambridge | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Austin McCann | m | Fictional Characters from Television | |
| Chuck McCann | m | Notable Actors and Entertainers | |
| Leo McCarey | m | Notable Filmmakers, Oscar Award Winners | |
| Cormac McCarthy | m | Notable Writers, Pulitzer Award Winners | |
| Melissa McCarthy | f | Emmy Award Winners, Notable Actors and Entertainers | |
| Thaddeus McCarthy | m | Saints | |
| Tommy McCarthy | m | Hall-of-Famers | |
| Paul McCartney | m | Grammy Award Winners, Notable Musicians, Rock and Roll Hall-of-Famers | |
| Stella McCartney | f | Notable Artists | |
| Jim McCarty | m | Rock and Roll Hall-of-Famers | |
| Richie McCaw | m | Notable Athletes | |
| Peggy McCay | f | Notable Actors and Entertainers | |
| Katrina McClain | f | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Hayden McClaine | f | Fictional Characters from Television | |
| Rue McClanahan | f | Emmy Award Winners, Notable Actors and Entertainers | |
| Alan McClatchey | m | Olympic Medalists | |
| Lyn McClements | f | Olympic Medalists | |
| Barbara McClintock | f | Nobel Prize Winners, Notable Scientists and Inventors | |
| Joe McCluskey | m | Olympic Medalists | |
| Skye McCole Bartusiak | f | Notable Actors and Entertainers | |
| Liz McColgan | f | Olympic Medalists | |
| Mitch McConnell | m | Notable Politicians and Statespeople | |
| Suzie McConnell-Serio | f | Olympic Medalists | |
| Will McCorkle | m | Fictional Characters from Television | |
| Eric McCormack | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Mike McCormack | m | Hall-of-Famers | |
| Frank McCormick | m | Most Valuable Players | |
| Kelly Anne McCormick | f | Olympic Medalists | |
| Kenny McCormick | m | Fictional Characters from Television | |
| Pat McCormick | f | Olympic Medalists | |
| Alastair McCorquodale | m | Olympic Medalists | |
| Willie McCovey | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Jack McCoy | m | Fictional Characters from Television | |
| Leonard "Bones" McCoy | m | Fictional Characters from Television | |
| Matt McCoy | m | Notable Actors and Entertainers | |
| Branch McCracken | m | Hall-of-Famers | |
| Jack McCracken | m | Hall-of-Famers | |
| Josiah McCracken | m | Olympic Medalists | |
| Nikki McCray | f | Olympic Medalists | |
| Mindy McCready | f | Notable Musicians | |
| Bear McCreary | m | Notable Musicians | |
| Nick McCrory | m | Olympic Medalists | |
| Hattie McDaniel | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Mildred McDaniel | f | Olympic Medalists | |
| Darryl "D.M.C." McDaniels | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Connor McDavid | m | Most Valuable Players, Notable Athletes | |
| Bobby McDermott | m | Hall-of-Famers | |
| Lee McDermott | m | Fictional Characters from Television | |
| Andrew McDonald | m | Olympic Medalists | |
| Arthur B. McDonald | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Beverly McDonald | f | Olympic Medalists | |
| Julie McDonald | f | Olympic Medalists | |
| Lanny McDonald | m | Hall-of-Famers, Notable Athletes | |
| Lindsey McDonald | m | Fictional Characters from Television | |
| Michael McDonald | m | Olympic Medalists | |
| Pat McDonald | m | Olympic Medalists | |
| Ronald McDonald | m | Other Fictional Characters | |
| Tommy McDonald | m | Hall-of-Famers | |
| Trevor McDonald | m | Notable Journalists | |
| Frances McDormand | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Roddy McDowall | m | Notable Actors and Entertainers | |
| Antonio McDyess | m | Olympic Medalists | |
| Rob McElhenney | m | Notable Actors and Entertainers | |
| Hugh McElhenny | m | Hall-of-Famers | |
| Mary McElroy | f | American First Ladies | |
| Sollie McElroy | m | Rock and Roll Hall-of-Famers | |
| Reba McEntire | f | Notable Actors and Entertainers, Notable Musicians | |
| John McEwen | m | Australian Prime Ministers | |
| Daniel McFadden | m | Nobel Prize Winners | |
| Lauren McFall | f | Olympic Medalists | |
| Jack McFarland | m | Fictional Characters from Television | |
| Danny D. McFarlane | m | Olympic Medalists | |
| Mike McFarlane | m | Olympic Medalists | |
| Tracey McFarlane | f | Olympic Medalists | |
| Bobby McFerrin | m | Grammy Award Winners, Notable Musicians | |
| Marty McFly | m | Fictional Characters from Movies | |
| Aiden McGeady | m | Notable Athletes | |
| Bobby McGee | ? | Fictional Characters from Song Titles | |
| Frank McGee | m | Hall-of-Famers | |
| Pamela McGee | f | Olympic Medalists | |
| Tim McGee | m | Fictional Characters from Television | |
| Willie McGee | m | Most Valuable Players | |
| Charlie McGettigan | m | Eurovision Song Contest Winners, Notable Musicians | |
| Carla McGhee | f | Olympic Medalists | |
| Perry McGillivray | m | Olympic Medalists | |
| Billy McGimsie | m | Hall-of-Famers | |
| John C. McGinley | m | Notable Actors and Entertainers | |
| Phyllis McGinley | f | Pulitzer Award Winners | |
| Charles McGinnis | m | Olympic Medalists | |
| Joe McGinnity | m | Hall-of-Famers | |
| Minerva McGonagall | f | Fictional Characters from Books, Harry Potter Characters | |
| Michael McGovern | m | Notable Athletes | |
| Matt McGrath | m | Olympic Medalists | |
| Ann "Muffet" McGraw | f | Hall-of-Famers | |
| John McGraw | m | Hall-of-Famers | |
| Tim McGraw | m | Notable Musicians | |
| Bob McGregor | m | Olympic Medalists | |
| Danny "Mac" McGregor | m | Fictional Characters from Television | |
| Roger McGuinn | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Dick McGuire | m | Hall-of-Famers, Notable Athletes | |
| Edith McGuire | f | Olympic Medalists | |
| Jo McGuire | f | Fictional Characters from Television | |
| Lizzie McGuire | f | Fictional Characters from Television | |
| Matt McGuire | m | Fictional Characters from Television | |
| Rachel McGuire | f | Fictional Characters from Television | |
| Sam McGuire | m | Fictional Characters from Television | |
| Kevin McHale | m | Hall-of-Famers, Notable Athletes | |
| Antonio McKay | m | Olympic Medalists | |
| Matt McKay | m | Notable Athletes | |
| Molly McKay | f | Fictional Characters from Movies | |
| Olive McKean | f | Olympic Medalists | |
| Bill McKechnie | m | Hall-of-Famers | |
| Mary Eunice McKee | f | Fictional Characters from Television | |
| Mary McKee | f | American First Ladies | |
| Tim McKee | m | Olympic Medalists | |
| Ed McKeever | m | Olympic Medalists | |
| Gillian McKeith | f | Fictional Characters from Song Titles | |
| Herb McKenley | m | Olympic Medalists | |
| Parker McKenna | f | Fictional Characters from Television | |
| Siobhán McKenna | f | Notable Actors and Entertainers | |
| Ben McKenzie | m | Notable Actors and Entertainers | |
| Don McKenzie | m | Olympic Medalists | |
| Grace McKenzie | f | Olympic Medalists | |
| Lani McKenzie | f | Fictional Characters from Television | |
| Les McKeown | m | Notable Musicians | |
| Leo McKern | m | Notable Actors and Entertainers | |
| Josephine McKim | f | Olympic Medalists | |
| Alice McKinley | f | Fictional Characters from Books | |
| Ida McKinley | f | American First Ladies | |
| William McKinley | m | American Presidents | |
| Frank McKinney Jr. | m | Olympic Medalists | |
| Richard McKinney | m | Olympic Medalists | |
| Betty McKinnon | f | Olympic Medalists | |
| Ray McKinnon | m | Notable Actors and Entertainers | |
| Mark McKoy | m | Olympic Medalists | |
| Cormac McLaggen | m | Harry Potter Characters | |
| Victor McLaglen | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Curly McLain | m | Fictional Characters from Plays and Musicals | |
| Denny McLain | m | Most Valuable Players | |
| Jimmy McLane Jr. | m | Olympic Medalists | |
| Bruce McLaren | m | Notable Athletes | |
| Gibb McLaughlin | m | Notable Actors and Entertainers | |
| A. J. McLean | m | Notable Musicians | |
| Don McLean | m | Notable Musicians | |
| John McLean | m | Olympic Medalists | |
| Matt McLean | m | Olympic Medalists | |
| Claire McLeod | f | Fictional Characters from Movies, Fictional Characters from Television | |
| Jaz McLeod | f | Fictional Characters from Television | |
| Mike McLeod | m | Olympic Medalists | |
| Regan McLeod | f | Fictional Characters from Television | |
| Tess McLeod | f | Fictional Characters from Movies, Fictional Characters from Television | |
| Finian McLonergan | m | Fictional Characters from Plays and Musicals | |
| Brigitte McMahon | f | Olympic Medalists | |
| Vince McMahon | m | Notable Businesspeople | |
| William McMahon | m | Australian Prime Ministers | |
| Rove McManus | m | Notable Actors and Entertainers | |
| Cecil McMaster | m | Olympic Medalists | |
| Doyle McMaster | m | Fictional Characters from Television | |
| Conrad McMasters | m | Fictional Characters from Television | |
| Edwin McMillan | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Kathy McMillan | f | Olympic Medalists | |
| Bob McMillen | m | Olympic Medalists | |
| Tom McMillen | m | Olympic Medalists | |
| Mark McMorris | m | Olympic Medalists | |
| Randle McMurphy | m | Fictional Characters from Books, Fictional Characters from Movies | |
| Larry McMurtry | m | Notable Writers, Pulitzer Award Winners | |
| Paddy McNair | m | Notable Athletes | |
| Steve McNair | m | Most Valuable Players, Notable Athletes | |
| Johnny "Blood" McNally | m | Hall-of-Famers | |
| Annie McNamara | f | Fictional Characters from Television | |
| George McNamara | m | Hall-of-Famers | |
| Julia McNamara | f | Fictional Characters from Television | |
| Maggie McNamara | f | Notable Actors and Entertainers | |
| Matt McNamara | m | Fictional Characters from Television | |
| Duncan McNaughton | m | Olympic Medalists | |
| Loretta McNeil | f | Olympic Medalists | |
| Billy McNeill | m | Notable Athletes | |
| Clyde McPhatter | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| John "Bid" McPhee | m | Hall-of-Famers | |
| James Alan McPherson | m | Pulitzer Award Winners | |
| Stuart McQuarrie | m | Notable Actors and Entertainers | |
| Steve McQueen | m | Notable Actors and Entertainers | |
| Steve McQueen | m | Notable Filmmakers | |
| Jamie McRuin | m | Fictional Characters from Plays and Musicals | |
| Janet McTeer | f | Notable Actors and Entertainers | |
| Christine McVie | f | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Alexis Meade | f | Fictional Characters from Television | |
| James Meade | m | Nobel Prize Winners | |
| Mary T. Meagher | f | Olympic Medalists | |
| Bonnie Mealing | f | Olympic Medalists | |
| Meander | m | Characters in Greek Mythology | |
| Russell Means | m | Notable Activists and Revolutionaries, Notable Actors and Entertainers | |
| Helen Meany | f | Olympic Medalists | |
| Owen Meany | m | Fictional Characters from Books | |
| Giuseppe Meazza | m | Notable Athletes | |
| Ilya Mechnikov | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Mechtildis of Helfta | f | Saints | |
| Medad | m | Biblical Characters | |
| Medan | m | Biblical Characters | |
| Greg Medavoy | m | Fictional Characters from Television | |
| Peter Medawar | m | Nobel Prize Winners | |
| Medea | f | Characters in Greek Mythology | |
| Alessandra Medeiros de Oliveira | f | Olympic Medalists | |
| Jack Medica | m | Olympic Medalists | |
| Catherine de' Medici | f | Other Royalty | |
| Max Medina | m | Fictional Characters from Television | |
| Medusa | f | Characters in Greek Mythology | |
| Yevgeniya Medvedeva | f | Olympic Medalists | |
| Joe Medwick | m | Hall-of-Famers, Most Valuable Players | |
| Kali Meehan | m | Notable Athletes | |
| Chantal Meek | f | Olympic Medalists | |
| Sam Meeker | m | Fictional Characters from Books | |
| Guus Meeuwis | m | Notable Musicians | |
| Megacles | m | Characters in Greek Mythology | |
| Megaera | f | Characters in Greek Mythology | |
| Megaletor | m | Characters in Greek Mythology | |
| Megalossaces | m | Characters in Greek Mythology | |
| Megapenthes | m | Characters in Greek Mythology | |
| Megapenthes | m | Characters in Greek Mythology | |
| Megara | f | Characters in Greek Mythology | |
| Megas | m | Characters in Greek Mythology | |
| Megassares | m | Characters in Greek Mythology | |
| Megasthenes | m | Characters in Greek Mythology | |
| Meges | m | Characters in Greek Mythology | |
| Meges | m | Characters in Greek Mythology | |
| Meges | m | Characters in Greek Mythology | |
| Meges | m | Characters in Greek Mythology | |
| Meghan, Duchess of Sussex | f | Other Royalty | |
| Greg Meghoo | m | Olympic Medalists | |
| Mehetabel | f | Biblical Characters | |
| Mehetabel | m | Biblical Characters | |
| Mehida | m | Biblical Characters | |
| Mehir | m | Biblical Characters | |
| Mehmed I | m | Ottoman Sultans | |
| Mehmed II the Conqueror | m | Ottoman Sultans | |
| Mehmed III | m | Islamic Caliphs, Ottoman Sultans | |
| Mehmed IV | m | Islamic Caliphs, Ottoman Sultans | |
| Mehmed V | m | Islamic Caliphs, Ottoman Sultans | |
| Mehmed VI Vahideddin | m | Islamic Caliphs, Ottoman Sultans | |
| Mehujael | m | Biblical Characters | |
| Mehuman | m | Biblical Characters | |
| Sid Meier | m | Notable Artists | |
| Zac Meier | m | Fictional Characters from Books | |
| Arthur Meighen | m | Canadian Prime Ministers | |
| Theo Meijer | m | Olympic Medalists | |
| Meilanion | m | Characters in Greek Mythology | |
| Meilanion | m | Characters in Greek Mythology | |
| Meilge Molbthach | m | Characters in Celtic Mythology, Irish Kings | |
| Rūta Meilutytė | f | Notable Athletes, Olympic Medalists | |
| Sylvie Meis | f | Notable Actors and Entertainers | |
| Mahiedine Mekhissi-Benabbad | m | Olympic Medalists | |
| Aleksandër Meksi | m | Albanian Presidents and Prime Ministers | |
| Melaena | f | Characters in Greek Mythology | |
| Melanchaetes | m | Characters in Greek Mythology | |
| Melanchaetes | f | Characters in Greek Mythology | |
| Melanion | m | Characters in Greek Mythology | |
| Melantheia | f | Characters in Greek Mythology | |
| Melantho | f | Characters in Greek Mythology | |
| Melantho | f | Characters in Greek Mythology | |
| Melas | m | Characters in Greek Mythology | |
| Melas | m | Characters in Greek Mythology | |
| Melas | m | Characters in Greek Mythology | |
| Melas | m | Characters in Greek Mythology | |
| Melas | m | Characters in Greek Mythology | |
| Melas | m | Characters in Greek Mythology | |
| Melas | m | Characters in Greek Mythology | |
| Melatiah | m | Biblical Characters | |
| Oskars Melbārdis | m | Olympic Medalists | |
| Grace Melbury | f | Fictional Characters from Books | |
| Melchi | m | Biblical Characters | |
| Melchi | m | Biblical Characters | |
| Melchizedek | m | Biblical Characters | |
| Melea | m | Biblical Characters | |
| Meleager | m | Characters in Greek Mythology | |
| Melech | m | Biblical Characters | |
| Irina Meleshina | f | Olympic Medalists | |
| Melete | f | Characters in Greek Mythology | |
| Meletius of Antioch | m | Saints | |
| Nika Melia | m | Notable Politicians and Statespeople | |
| Melictaina | f | Characters in Greek Mythology | |
| Antiopi Melidoni | f | Olympic Medalists | |
| Melie | f | Characters in Greek Mythology | |
| Doina Melinte | f | Olympic Medalists | |
| Manon Melis | f | Notable Athletes | |
| Melissa | f | Hurricanes and Tropical Storms | |
| Melissa | f | Fictional Characters from Song Titles | |
| Melissa | f | Fictional Characters from Movies | |
| Melisseus | m | Characters in Greek Mythology | |
| Ad Melkert | m | Notable Politicians and Statespeople | |
| Melkor | m | Tolkien's Characters | |
| Fleur Mellor | f | Olympic Medalists | |
| Nikolai Melnikov | m | Olympic Medalists | |
| Fab Melo | m | Notable Athletes | |
| Melobosis | f | Characters in Greek Mythology | |
| Melphis | f | Characters in Greek Mythology | |
| Melpomene | f | Characters in Greek Mythology | |
| Katie Melua | f | Notable Musicians | |
| Count Giles de Melun | m | Shakespearian Characters | |
| Tim Melville | m | Fictional Characters from Books | |
| Karen Memery | f | Fictional Characters from Books | |
| Liesel Meminger | f | Fictional Characters from Books | |
| Hans Memling | m | Notable Artists | |
| Memnon | m | Characters in Greek Mythology | |
| Memphis | f | Characters in Greek Mythology | |
| Memphis | f | Characters in Greek Mythology | |
| Memucan | m | Biblical Characters | |
| Jesús Mena Campos | m | Olympic Medalists | |
| Luigi Federico Menabrea | m | Italian Presidents and Prime Ministers | |
| Menahem | m | Biblical Characters, Israelite and Judean Kings | |
| Menalcas | m | Characters in Greek Mythology | |
| Menalcas | m | Characters in Greek Mythology | |
| Menalces | m | Characters in Greek Mythology | |
| Menander | m | Notable Writers | |
| Claude Ménard | m | Olympic Medalists | |
| Menas | m | Shakespearian Characters | |
| Menas of Constantinople | m | Saints | |
| Menas of Sinai | m | Saints | |
| Rigoberta Menchú | f | Nobel Prize Winners, Notable Activists and Revolutionaries | |
| Dmitriy Mendeleev | m | Notable Scientists and Inventors | |
| Ben Mendelsohn | m | Notable Actors and Entertainers | |
| Fanny Mendelssohn | f | Notable Musicians | |
| Felix Mendelssohn | m | Notable Musicians | |
| Sam Mendes | m | Notable Filmmakers, Oscar Award Winners | |
| Isaac Mendez | m | Fictional Characters from Television | |
| Javier Méndez | m | Olympic Medalists | |
| Jesús Méndez Montoya | m | Saints | |
| José Méndez | m | Hall-of-Famers | |
| Aristotle Mendoza | m | Fictional Characters from Books | |
| Menecrates | m | Shakespearian Characters | |
| Dino Meneghin | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Liduina Meneguzzi | f | Saints | |
| Menelaus | m | Characters in Greek Mythology, Shakespearian Characters | |
| Tar-Meneldur | m | Tolkien's Characters | |
| Menemachus | m | Characters in Greek Mythology | |
| Alfonso Menéndez Vallín | m | Olympic Medalists | |
| Agrippa Menenius Lanatus | m | Shakespearian Characters | |
| Menephron | m | Characters in Greek Mythology | |
| Menes | m | Characters in Greek Mythology | |
| Menesthes | m | Characters in Greek Mythology | |
| Menesthes | m | Characters in Greek Mythology | |
| Menestho | f | Characters in Greek Mythology | |
| Menetes | m | Characters in Greek Mythology | |
| Heini Meng | m | Olympic Medalists | |
| Meni | m | Biblical Characters | |
| Alan Menken | m | Notable Musicians | |
| Carol Menken-Schaudt | f | Olympic Medalists | |
| Rachel Menken | f | Fictional Characters from Television | |
| Menna | m | Biblical Characters | |
| Pietro Mennea | m | Notable Athletes, Olympic Medalists | |
| Benedetto Menni | m | Saints | |
| Menon | m | Characters in Greek Mythology | |
| Menon | m | Characters in Greek Mythology | |
| Vladimir Menshov | m | Notable Actors and Entertainers, Notable Filmmakers | |
| Wieger Mensonides | m | Olympic Medalists | |
| Menteith | m | Shakespearian Characters | |
| Mentes | m | Characters in Greek Mythology | |
| Mentes | m | Characters in Greek Mythology | |
| Mentes | m | Characters in Greek Mythology | |
| Mentor | m | Characters in Greek Mythology | |
| Yehudi Menuhin | m | Notable Musicians | |
| Idina Menzel | f | Notable Actors and Entertainers, Notable Musicians, Tony Award Winners | |
| Robert Menzies | m | Australian Prime Ministers | |
| Meonothai | m | Biblical Characters | |
| Mephibosheth | m | Biblical Characters | |
| Mephibosheth | m | Biblical Characters | |
| Raúl Mera | m | Olympic Medalists | |
| Ivane Merabishvili | m | Georgian Presidents and Prime Ministers | |
| Nouria Mérah-Benida | f | Olympic Medalists | |
| Meraiah | m | Biblical Characters | |
| Merari | m | Biblical Characters | |
| Alex Meraz | m | Notable Actors and Entertainers | |
| Mercade | m | Shakespearian Characters | |
| Gerardus Mercator | m | Notable Philosophers and Thinkers | |
| Carlos Mercenario | m | Olympic Medalists | |
| Désiré Mérchez | m | Olympic Medalists | |
| Émile Mercier | m | Olympic Medalists | |
| Eddy Merckx | m | Notable Athletes | |
| Mercury | m | Biblical Characters, Characters in Roman Mythology | |
| Freddie Mercury | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Mercutio | m | Fictional Characters from Plays and Musicals, Shakespearian Characters | |
| Mered | m | Biblical Characters | |
| Ted Meredith | m | Olympic Medalists | |
| Meres | m | Biblical Characters | |
| Maximus Decimus Meridius | m | Fictional Characters from Movies | |
| Päivi Meriluoto-Aaltonen | f | Olympic Medalists | |
| Merinus | m | Saints | |
| Meriones | m | Characters in Greek Mythology | |
| Angela Merkel | f | German Chancellors and Presidents | |
| Antanas Merkys | m | Lithuanian Presidents and Prime Ministers | |
| Merlin | m | Arthurian Characters, Fictional Characters from Traditional Tales | |
| Dino Merlin | m | Notable Musicians | |
| Merodach-Baladan | m | Biblical Characters | |
| Merope | f | Characters in Greek Mythology | |
| Merope | f | Characters in Greek Mythology | |
| Merope | f | Characters in Greek Mythology | |
| Merope | f | Characters in Greek Mythology | |
| Meropis | f | Characters in Greek Mythology | |
| Merovech | m | Frankish and French Kings | |
| Ronald Merriott | m | Olympic Medalists | |
| Finn Mertens | m | Fictional Characters from Television | |
| Isabelle de Merteuil | f | Fictional Characters from Books | |
| Robert C. Merton | m | Nobel Prize Winners | |
| Germán Mesa | m | Olympic Medalists | |
| Víctor Mesa | m | Olympic Medalists | |
| Mesembria | f | Characters in Greek Mythology | |
| Meshach | m | Biblical Characters | |
| Natalya Meshcheryakova | f | Olympic Medalists | |
| Meshech | m | Biblical Characters | |
| Meshelemiah | m | Biblical Characters | |
| Meshillemith | m | Biblical Characters | |
| Meshillemoth | m | Biblical Characters | |
| Meshillemoth | m | Biblical Characters | |
| Meshobab | m | Biblical Characters | |
| Antonia Mesina | f | Saints | |
| Messala | m | Shakespearian Characters | |
| Danny Messer | m | Fictional Characters from Television | |
| Messiah | m | Biblical Characters | |
| Mark Messier | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Chris Messina | m | Notable Actors and Entertainers | |
| Debra Messing | f | Emmy Award Winners, Notable Actors and Entertainers | |
| Mesthles | m | Characters in Greek Mythology | |
| Mestor | m | Characters in Greek Mythology | |
| Mestor | m | Characters in Greek Mythology | |
| Mestor | m | Characters in Greek Mythology | |
| Mestor | m | Characters in Greek Mythology | |
| Santiago Mestre Iborra de Rafelbunyol | m | Saints | |
| Ilir Meta | m | Albanian Presidents and Prime Ministers | |
| Metalces | m | Characters in Greek Mythology | |
| Metanastes | m | Characters in Greek Mythology | |
| Metanira | f | Characters in Greek Mythology | |
| Andreas Metaxas | m | Greek Prime Ministers | |
| Laurie Metcalf | f | Notable Actors and Entertainers | |
| Jack Metcalfe | m | Olympic Medalists | |
| Metharme | f | Characters in Greek Mythology | |
| Methe | f | Characters in Greek Mythology | |
| Methe | f | Characters in Greek Mythology | |
| Methon | m | Characters in Greek Mythology | |
| Methuselah | m | Biblical Characters | |
| Methushael | f | Biblical Characters | |
| Methymna | f | Characters in Greek Mythology | |
| Metiadusa | f | Characters in Greek Mythology | |
| Metidice | f | Characters in Greek Mythology | |
| Metioche | f | Characters in Greek Mythology | |
| Metioche | f | Characters in Greek Mythology | |
| Metion | m | Characters in Greek Mythology | |
| Metion | m | Characters in Greek Mythology | |
| Metis | f | Characters in Greek Mythology | |
| Mette-Marit of Norway | f | Other Royalty | |
| Chrissy Metz | f | Notable Actors and Entertainers | |
| Manfred Metzger | m | Olympic Medalists | |
| Max Metzker | m | Olympic Medalists | |
| Marie-Geneviève Meunier | f | Saints | |
| Herman Meyboom | m | Olympic Medalists | |
| Adolf Meyer | m | Notable Scientists and Inventors | |
| Alvah Meyer | m | Olympic Medalists | |
| Debbie Meyer | f | Olympic Medalists | |
| Heiko Meyer | m | Olympic Medalists | |
| Ann Meyers | f | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Me-Zahab | m | Biblical Characters | |
| Frigyes Mezei | m | Olympic Medalists | |
| Grigol Mgaloblishvili | m | Georgian Presidents and Prime Ministers | |
| Mibhar | m | Biblical Characters | |
| Mibsam | m | Biblical Characters | |
| Mibsam | m | Biblical Characters | |
| Mibzar | m | Biblical Characters | |
| Mica | m | Biblical Characters | |
| Micah | m | Biblical Characters | |
| Micaiah | m | Biblical Characters | |
| Micaiah | m | Biblical Characters | |
| Micaiah | m | Biblical Characters | |
| Micaiah | m | Biblical Characters | |
| Micaiah | m | Biblical Characters | |
| Tony Micelli | m | Fictional Characters from Television | |
| Ghebre Michael | m | Saints | |
| Michael | m | Hurricanes and Tropical Storms | |
| Michael I | m | Roman and Byzantine Emperors | |
| Michael II the Stammerer | m | Roman and Byzantine Emperors | |
| Michael III | m | Roman and Byzantine Emperors | |
| Michael IV the Paphlagonian | m | Roman and Byzantine Emperors | |
| Michael IX Palaeologus | m | Roman and Byzantine Emperors | |
| Michael of Ulumbo | m | Saints | |
| Michael the Archangel | m | Biblical Characters, Saints | |
| Michael the Confessor | m | Saints | |
| Michael V | m | Roman and Byzantine Emperors | |
| Michael VII Ducas | m | Roman and Byzantine Emperors | |
| Sir Michael | m | Shakespearian Characters | |
| George Michael | m | Grammy Award Winners, Notable Musicians, Rock and Roll Hall-of-Famers | |
| Georg Michaelis | m | German Chancellors and Presidents | |
| Laura Michaels Kelly | f | Fictional Characters from Television | |
| Michal | f | Biblical Characters | |
| Michał Korybut | m | Polish High Dukes and Kings | |
| Mike Michalske | m | Hall-of-Famers | |
| Albert Michant | m | Olympic Medalists | |
| Rubén Michavila Jover | m | Olympic Medalists | |
| Charles Michel | m | Belgian Prime Ministers | |
| Hartmut Michel | m | Nobel Prize Winners | |
| Michelangelo | m | Notable Artists | |
| Michelle | f | Hurricanes and Tropical Storms | |
| Michelle | f | Fictional Characters from Song Titles | |
| Michelle | f | Fictional Characters from Song Titles | |
| Giovanna Francesca Michelotti | f | Saints | |
| Rinus Michels | m | Notable Athletes | |
| Christian Michelsen | m | Norwegian Prime Ministers | |
| Albert Abraham Michelson | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| James A. Michener | m | Notable Writers, Pulitzer Award Winners | |
| Edmond Michiels | m | Olympic Medalists | |
| Ogimachi | m | Japanese Emperors | |
| Mickey | m | Fictional Characters from Song Titles | |
| Ingrid Mickler-Becker | f | Olympic Medalists | |
| Micri | m | Biblical Characters | |
| Midanus | m | Characters in Greek Mythology | |
| Midas | m | Characters in Greek Mythology | |
| Midian | m | Biblical Characters | |
| Bette Midler | f | Grammy Award Winners, Notable Actors and Entertainers, Notable Musicians | |
| Amber Midthunder | f | Notable Actors and Entertainers | |
| Doug Mientkiewicz | m | Olympic Medalists | |
| Ludwig Mies van der Rohe | m | Notable Artists | |
| Mieszko I | m | Polish High Dukes and Kings | |
| Mieszko II Lambert | m | Polish High Dukes and Kings | |
| Mieszko III the Old | m | Polish High Dukes and Kings | |
| Mieszko IV Tanglefoot | m | Polish High Dukes and Kings | |
| Martti Miettunen | m | Finnish Presidents and Prime Ministers | |
| Igors Miglinieks | m | Olympic Medalists | |
| Miguel | m | Portuguese Kings and Queens | |
| Faustino Miguez | m | Saints | |
| Mihail Asen I | m | Bulgarian Kings and Tsars | |
| Mihail Asen II | m | Bulgarian Kings and Tsars | |
| Mihail Asen III | m | Bulgarian Kings and Tsars | |
| Mihailo III Obrenović | m | Serbian Kings, Tsars and Princes | |
| Vasa Mijić | m | Olympic Medalists | |
| Mika | m | Notable Musicians | |
| George Mikan | m | Hall-of-Famers, Notable Athletes | |
| Mike D | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Mikhail | m | Russian Grand Dukes and Tsars | |
| Mikhail I | m | Russian Grand Dukes and Tsars | |
| Mikhail II | m | Other Royalty | |
| Anatoly Mikhailov | m | Olympic Medalists | |
| Angelina Mikhaylova | f | Olympic Medalists | |
| Snezhana Mikhaylova | f | Olympic Medalists | |
| Natallia Mikhnevich | f | Olympic Medalists | |
| Stan Mikita | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Vern Mikkelsen | m | Hall-of-Famers, Notable Athletes | |
| Mikloth | m | Biblical Characters | |
| Mikloth | m | Biblical Characters | |
| Mikneiah | m | Biblical Characters | |
| Maximilian II | m | Austrian Dukes and Emperors, Bohemian Kings, German Kings and Holy Roman Emperors, Hungarian Kings and Queens | |
| Zoran Mikulić | m | Notable Athletes, Olympic Medalists | |
| Milalai | m | Biblical Characters | |
| Milan | m | Serbian Kings, Tsars and Princes | |
| Milan II Obrenović | m | Serbian Kings, Tsars and Princes | |
| Rod Milburn Jr. | m | Olympic Medalists | |
| Ben Miles | m | Notable Actors and Entertainers | |
| Jearl Miles Clark | f | Olympic Medalists | |
| Lewis Milestone | m | Notable Filmmakers, Oscar Award Winners | |
| Roger Milla | m | Notable Athletes | |
| John Everett Millais | m | Notable Artists | |
| Ray Milland | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Daphne Millbrook | f | Fictional Characters from Television | |
| Sylvia Millecam | f | Notable Actors and Entertainers | |
| Anita Miller | f | Olympic Medalists | |
| Arthur Miller | m | Notable Writers, Pulitzer Award Winners | |
| Bill Miller | m | Olympic Medalists | |
| Bill Miller | m | Olympic Medalists | |
| Caroline Miller | f | Pulitzer Award Winners | |
| Cheryl Miller | f | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Daisy Miller | f | Fictional Characters from Books | |
| Dick Miller | m | Notable Actors and Entertainers | |
| Gail Miller | f | Olympic Medalists | |
| John Miller | m | Fictional Characters from Movies | |
| Jonny Lee Miller | m | Notable Actors and Entertainers | |
| June Miller | f | Other Notables | |
| Larry Miller | m | Notable Actors and Entertainers | |
| Liam Miller | m | Notable Athletes | |
| Lior Miller | m | Notable Actors and Entertainers | |
| Merton Miller | m | Nobel Prize Winners | |
| Pete Miller | m | Fictional Characters from Television | |
| Pia Miller | f | Notable Actors and Entertainers | |
| Reggie Miller | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Scott Miller | m | Olympic Medalists | |
| Alexandre Millerand | m | French Presidents and Prime Ministers | |
| Steven Millhauser | m | Pulitzer Award Winners | |
| Robert Andrews Millikan | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Wayne Millner | m | Hall-of-Famers | |
| Alley Mills | f | Notable Actors and Entertainers | |
| Billy Mills | m | Olympic Medalists | |
| John Mills | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Naomi Mills | f | Fictional Characters from Movies | |
| Phoebe Mills | f | Olympic Medalists | |
| Ronnie Mills | m | Olympic Medalists | |
| Sam Mills | m | Hall-of-Famers | |
| Milly-Molly-Mandy | f | Fictional Characters from Books | |
| Matt Milne | m | Notable Actors and Entertainers | |
| James Milner | m | Notable Athletes | |
| Miloš Obrenović | m | Serbian Kings, Tsars and Princes | |
| Valeriy Miloserdov | m | Olympic Medalists | |
| Bojana Milošević | f | Olympic Medalists | |
| Czesław Miłosz | m | Nobel Prize Winners, Notable Writers | |
| César Milstein | m | Nobel Prize Winners | |
| Miltiades | m | Bishops of Rome and the Popes, Saints | |
| DeLisha Milton-Jones | f | Notable Athletes, Olympic Medalists | |
| George Milton | m | Fictional Characters from Books | |
| Mímir | m | Characters in Norse Mythology | |
| Min "Suga" Yoon-gi | m | Notable Musicians | |
| Guram Minashvili | m | Olympic Medalists | |
| Tar-Minastir | m | Tolkien's Characters | |
| Marga Minco | f | Notable Writers | |
| Minerva | f | Characters in Roman Mythology | |
| Mineus | m | Characters in Greek Mythology | |
| Olga Mineyeva | f | Olympic Medalists | |
| Anthony Minghella | m | Notable Filmmakers, Oscar Award Winners | |
| Marco Minghetti | m | Italian Presidents and Prime Ministers | |
| Charles Mingus | m | Notable Musicians | |
| Minis | m | Characters in Greek Mythology | |
| Stuart Minkus | m | Fictional Characters from Television | |
| Liza Minnelli | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Vincente Minnelli | m | Notable Filmmakers, Oscar Award Winners | |
| Minnie | f | Fictional Characters from Song Titles | |
| Minnyrides | m | Characters in Greek Mythology | |
| Dannii Minogue | f | Notable Actors and Entertainers, Notable Musicians | |
| Baptista Minola | m | Shakespearian Characters | |
| Bianca Minola | f | Shakespearian Characters | |
| Katherina Minola | f | Fictional Characters from Plays and Musicals, Shakespearian Characters | |
| Minos | m | Characters in Greek Mythology | |
| Minos | m | Characters in Greek Mythology | |
| Minnie Miñoso | m | Hall-of-Famers | |
| George Minot | m | Nobel Prize Winners | |
| Minotaur | m | Characters in Greek Mythology | |
| Christopher Mintz-Plasse | m | Notable Actors and Entertainers | |
| Minyas | m | Characters in Greek Mythology | |
| Kevin Mirallas | m | Notable Athletes | |
| Miranda | m | Notable Athletes | |
| Miranda | f | Fictional Characters from Plays and Musicals, Shakespearian Characters | |
| Carmen Miranda | f | Notable Actors and Entertainers, Notable Musicians | |
| Miriam | f | Biblical Characters | |
| Miriam | f | Biblical Characters | |
| Mirian III of Iberia | m | Saints | |
| Voja Mirić | m | Notable Actors and Entertainers | |
| Tar-Míriel | f | Tolkien's Characters | |
| Mirmah | m | Biblical Characters | |
| Max Mirnyi | m | Notable Athletes, Olympic Medalists | |
| Joan Miró | m | Notable Artists | |
| Yevgeniy Mironov | m | Olympic Medalists | |
| Yelena Miroshina | f | Olympic Medalists | |
| Helen Mirren | f | Notable Actors and Entertainers, Oscar Award Winners | |
| James Mirrlees | m | Nobel Prize Winners | |
| Victor Mirshauswka | m | Olympic Medalists | |
| Edvard Mirzoyan | m | Notable Musicians | |
| Mishael | m | Biblical Characters | |
| Mishael | m | Biblical Characters | |
| Misham | m | Biblical Characters | |
| Mishma | m | Biblical Characters | |
| Mishma | m | Biblical Characters | |
| Mishmannah | m | Biblical Characters | |
| Arsens Miskarovs | m | Olympic Medalists | |
| Misme | f | Characters in Greek Mythology | |
| Mispar | m | Biblical Characters | |
| Frédéric Mistral | m | Nobel Prize Winners, Notable Writers | |
| Gabriela Mistral | f | Nobel Prize Winners, Notable Writers | |
| Mitch | m | Hurricanes and Tropical Storms | |
| Matthew Mitcham | m | Olympic Medalists | |
| James Mitchel | m | Olympic Medalists | |
| Betsy Mitchell | f | Olympic Medalists | |
| Bobby Mitchell | m | Hall-of-Famers | |
| Cam Mitchell | m | Fictional Characters from Television | |
| Dee Mitchell | f | Fictional Characters from Television | |
| Delores Mitchell | f | Fictional Characters from Television | |
| Frank Mitchell | m | Fictional Characters from Television | |
| George Mitchell | m | Olympic Medalists | |
| Henry Mitchell | m | Fictional Characters from Television | |
| Joni Mitchell | f | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Kevin Mitchell | m | Most Valuable Players | |
| Margaret Mitchell | f | Notable Writers, Pulitzer Award Winners | |
| Michele Mitchell | f | Olympic Medalists | |
| Moesha Mitchell | f | Fictional Characters from Television | |
| Myles Mitchell | m | Fictional Characters from Television | |
| Peter D. Mitchell | m | Nobel Prize Winners | |
| Rick Mitchell | m | Olympic Medalists | |
| Ryan Mitchell | m | Olympic Medalists | |
| Thomas Mitchell | m | Notable Explorers and Adventurers | |
| Thomas Mitchell | m | Emmy Award Winners, Notable Actors and Entertainers, Oscar Award Winners | |
| Mithra | m | Characters in Greek Mythology, Characters in Persian Mythology | |
| Mithredath | m | Biblical Characters | |
| Mithredath | m | Biblical Characters | |
| Mithrellas | f | Tolkien's Characters | |
| Mithridates I | m | Persian and Iranian Kings and Queens | |
| György Mitró | m | Olympic Medalists | |
| Kostas Mitroglou | m | Notable Athletes | |
| Stefan Mitrović | m | Olympic Medalists | |
| Rexhep Mitrovica | m | Albanian Presidents and Prime Ministers | |
| Mitso Asen | m | Bulgarian Kings and Tsars | |
| Konstantinos Mitsotakis | m | Greek Prime Ministers | |
| Kyriakos Mitsotakis | m | Greek Prime Ministers | |
| Shijo | m | Japanese Emperors | |
| Lakshmi Mittal | m | Notable Businesspeople | |
| François Mitterrand | m | French Presidents and Prime Ministers | |
| Walter Mitty | m | Fictional Characters from Books | |
| Ron Mix | m | Hall-of-Famers | |
| Aya Miyama | f | Notable Athletes, Olympic Medalists | |
| Emiko Miyamoto | f | Olympic Medalists | |
| Miyamoto Musashi | m | Notable Military Figures | |
| Yasuji Miyazaki | m | Olympic Medalists | |
| Johnny Mize | m | Hall-of-Famers, Notable Athletes | |
| Mizraim | m | Biblical Characters | |
| Mizzah | m | Biblical Characters | |
| Oliver Mlakar | m | Notable Actors and Entertainers | |
| Mnason | m | Biblical Characters | |
| Mneme | f | Characters in Greek Mythology | |
| Mnemosyne | f | Characters in Greek Mythology | |
| Mneseus | m | Characters in Greek Mythology | |
| Mnestra | f | Characters in Greek Mythology | |
| Mo Yan | m | Nobel Prize Winners, Notable Writers | |
| Moab | m | Biblical Characters | |
| Mocius of Amphipolis | m | Saints | |
| Mike Modano | m | Hall-of-Famers, Notable Athletes | |
| Moderata of Sirmium | f | Saints | |
| Luchesio Modestini | m | Saints | |
| Patrick Modiano | m | Nobel Prize Winners, Notable Writers | |
| Modron | f | Characters in Celtic Mythology | |
| Domenico Modugno | m | Grammy Award Winners, Notable Musicians | |
| Karen Patricia Moe | f | Olympic Medalists | |
| William E. Moerner | m | Nobel Prize Winners | |
| John Moffitt | m | Olympic Medalists | |
| Carsten Mogensen | m | Olympic Medalists | |
| Oscar Moglia | m | Olympic Medalists | |
| Mohammad Nazimuddin | m | Notable Athletes | |
| Zia Mohyeddin | m | Notable Actors and Entertainers | |
| Augustine Moi | m | Saints | |
| Aleksandr Moiseyev | m | Olympic Medalists | |
| Henri Moissan | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Godfrey Khotso Mokoena | m | Olympic Medalists | |
| María Rosa Molas y Vallve | f | Saints | |
| Adrian Mole | m | Fictional Characters from Books | |
| Molech | m | Biblical Characters | |
| Molid | m | Biblical Characters | |
| Mario Molina | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Mercedes de Jesús Molina | f | Saints | |
| Molion | m | Characters in Greek Mythology | |
| Molion | m | Characters in Greek Mythology | |
| Molion | m | Characters in Greek Mythology | |
| Art Mollner | m | Olympic Medalists | |
| Miss Molly | f | Fictional Characters from Song Titles | |
| Molly | f | Fictional Characters from Song Titles | |
| István Molnár | m | Olympic Medalists | |
| Adam Wilhelm Moltke | m | Danish Prime Ministers | |
| Peter Molyneux | m | Notable Artists | |
| Theodor Mommsen | m | Nobel Prize Winners, Notable Philosophers and Thinkers, Notable Writers | |
| Momus | m | Characters in Greek Mythology | |
| Monaeses | m | Characters in Greek Mythology | |
| Tom Monaghan | m | Notable Businesspeople | |
| Buonfiglio Monaldi | m | Saints | |
| John Monckton | m | Olympic Medalists | |
| Piet Mondrian | m | Notable Artists | |
| Claude Monet | m | Notable Artists | |
| Ernesto Teodoro Moneta | m | Nobel Prize Winners | |
| Eddie Money | m | Notable Musicians | |
| Mo'Nique | f | Notable Actors and Entertainers, Oscar Award Winners | |
| António Egas Moniz | m | Nobel Prize Winners | |
| Art Monk | m | Hall-of-Famers | |
| Thelonious Monk | m | Notable Musicians | |
| Myra Monkhouse | f | Fictional Characters from Television | |
| Jacques Monod | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Nacho Monreal | m | Notable Athletes | |
| Adam Monroe | m | Fictional Characters from Television | |
| Bill Monroe | m | Notable Musicians | |
| Elizabeth Monroe | f | American First Ladies | |
| James Monroe | m | American Presidents | |
| Marilyn Monroe | f | Notable Actors and Entertainers | |
| Saffron Monsoon | f | Fictional Characters from Television | |
| Guy Montag | m | Fictional Characters from Books | |
| Luc Montagnier | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Montague | m | Shakespearian Characters | |
| Michel de Montaigne | m | Notable Writers | |
| Paula Montal Fornés | f | Saints | |
| Eugenio Montale | m | Nobel Prize Winners, Notable Writers | |
| Joe Montana | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Tony Montana | m | Fictional Characters from Movies | |
| Yves Montand | m | Notable Actors and Entertainers, Notable Musicians | |
| Montano | m | Shakespearian Characters | |
| Romy Monteiro | f | Notable Musicians | |
| Cory Monteith | m | Notable Actors and Entertainers | |
| Eugenio Montero Ríos | m | Spanish Prime Ministers | |
| Pablo Montes | m | Olympic Medalists | |
| Claudio Monteverdi | m | Notable Musicians | |
| Lola Montez | f | Notable Actors and Entertainers | |
| Charles Montgomery | m | Fictional Characters from Television | |
| Greg Montgomery | m | Fictional Characters from Television | |
| Jim Montgomery | m | Olympic Medalists | |
| Sir John Montgomery | m | Shakespearian Characters | |
| Kitty Montgomery | f | Fictional Characters from Television | |
| Madison Montgomery | f | Fictional Characters from Television | |
| Nora Montgomery | f | Fictional Characters from Television | |
| Tim Montgomery | m | Olympic Medalists | |
| Luigi Maria Monti | m | Saints | |
| Luis Monti | m | Notable Athletes | |
| Mario Monti | m | Italian Presidents and Prime Ministers | |
| Frank Montieth | m | Olympic Medalists | |
| Montjoy | m | Shakespearian Characters | |
| Anne Montminy | f | Olympic Medalists | |
| Laura Montoya | f | Saints | |
| Monuste | f | Characters in Greek Mythology | |
| Alastor "Mad-Eye" Moody | m | Harry Potter Characters | |
| Joe Moody | m | Notable Athletes | |
| Keith Moon | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Moon Kyung-ja | f | Olympic Medalists | |
| Molly Moon | f | Fictional Characters from Books | |
| Warren Moon | m | Hall-of-Famers | |
| Alan Moore | m | Notable Writers | |
| Alecia "Pink" Moore | f | Notable Musicians | |
| Alvin Moore | m | Olympic Medalists | |
| Alvy Moore | m | Notable Actors and Entertainers | |
| Angela Moore | f | Fictional Characters from Television | |
| Belle Moore | f | Olympic Medalists | |
| Billie Moore | f | Hall-of-Famers | |
| Bobby Moore | m | Notable Athletes | |
| Charles Moore Jr. | m | Olympic Medalists | |
| Dickie Moore | m | Hall-of-Famers, Notable Athletes | |
| G. E. Moore | m | Notable Philosophers and Thinkers | |
| Henry Moore | m | Notable Artists | |
| Johnny Moore | m | Rock and Roll Hall-of-Famers | |
| Julianne Moore | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Laura Moore | f | Fictional Characters from Movies | |
| Lenny Moore | m | Hall-of-Famers | |
| Mandy Moore | f | Notable Actors and Entertainers, Notable Musicians | |
| Marianne Moore | f | Notable Writers, Pulitzer Award Winners | |