| Name | Gender | Categories | |
|---|
| Michał Korybut | m | Polish High Dukes and Kings |  |
| Mike Michalske | m | Hall-of-Famers | |
| Albert Michant | m | Olympic Medalists | |
| Hartmut Michel | m | Nobel Prize Winners | |
| Michelangelo | m | Notable Artists | |
| Michelina of Pesaro | f | Saints | |
| 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 | |
| Hiroshi Michinaga | m | Olympic Medalists | |
| Montoku | m | Japanese Emperors | |
| Ingrid Mickler-Becker | f | Olympic Medalists | |
| Humphrey Middlemore | m | Saints | |
| Anthony Middleton | m | Saints | |
| Stanley Middleton | m | Notable Writers | |
| Tuppence Middleton | f | Notable Actors and Entertainers | |
| Midian | m | Biblical Characters | |
| 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 | |
| Karmenu Mifsud Bonnici | m | Other Leaders | |
| Toshiro Mifune | m | Notable Actors and Entertainers | |
| Miguel | m | Portuguese Kings and Queens | |
| Miguel de Sanctis | 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 | |
| Svetozar Mihajlović | m | Other Leaders | |
| Mijamin | m | Biblical Characters | |
| Mijamin | m | Biblical Characters | |
| Mijamin | m | Biblical Characters | |
| Mijamin | m | Biblical Characters | |
| John Mikaelsson | m | Olympic Medalists | |
| George Mikan | m | Hall-of-Famers, Notable Athletes | |
| Mike D | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Antanas Mikėnas | m | Olympic Medalists | |
| Dragan Mikerević | m | Other Leaders | |
| Mikhail | m | Russian Grand Dukes and Tsars | |
| Mikhail I | m | Russian Grand Dukes and Tsars | |
| Mikhail II | m | Other Royalty | |
| Maxim Mikhaylov | m | Olympic Medalists | |
| Andrei Mikhnevich | m | Olympic Medalists | |
| Natallia Mikhnevich | f | Olympic Medalists | |
| Paulo Miki | m | Saints | |
| Stan Mikita | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Vern Mikkelsen | m | Hall-of-Famers, Notable Athletes | |
| Beata Mikołajczyk | f | Olympic Medalists | |
| Maximilian II | m | Austrian Dukes and Emperors, Bohemian Kings, German Kings and Holy Roman Emperors, Hungarian Kings and Queens | |
| Milan | m | Serbian Kings, Tsars and Princes | |
| Milan II Obrenović | m | Serbian Kings, Tsars and Princes | |
| Christina Milano | f | Fictional Characters from Television | |
| Samantha Milano | f | Fictional Characters from Television | |
| Igor Milanović | m | Olympic Medalists | |
| Jakov Milatović | m | Other Leaders | |
| Milburga | f | Saints | |
| Klara Milch | f | Olympic Medalists | |
| Lothar Milde | m | Olympic Medalists | |
| Mildgyth | f | Saints | |
| Gina Miles | f | Olympic Medalists | |
| Lewis Milestone | m | Notable Filmmakers, Oscar Award Winners | |
| Pavao Miljavac | m | Notable Military Figures | |
| John Stuart Mill | m | Notable Philosophers and Thinkers | |
| Roger Milla | m | Notable Athletes | |
| Ray Milland | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Daphne Millbrook | f | Fictional Characters from Television | |
| Raymond Millbury | m | Fictional Characters from Television | |
| Anita Miller | f | Olympic Medalists | |
| Arthur Miller | m | Notable Writers, Pulitzer Award Winners | |
| Cheryl Miller | f | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Coby Miller | m | Olympic Medalists | |
| Danielle Miller | f | Fictional Characters from Television | |
| Gail Miller | f | Olympic Medalists | |
| Harvey Miller | m | Fictional Characters from Television | |
| Inger Miller | f | Olympic Medalists | |
| Kat Miller | f | Fictional Characters from Television | |
| Lauren Miller | f | Fictional Characters from Television | |
| Lennox Miller | m | Olympic Medalists | |
| Logan 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 | |
| Ramon Miller | m | Olympic Medalists | |
| Reggie Miller | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Skye Miller | f | Fictional Characters from Books, Fictional Characters from Television | |
| Zach Miller | m | Fictional Characters from Television | |
| Alexandre Millerand | m | French Presidents and Prime Ministers | |
| Jean-François Millet | m | Notable Artists | |
| Steven Millhauser | m | Pulitzer Award Winners | |
| Robert Andrews Millikan | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Wayne Millner | m | Hall-of-Famers | |
| Derek Mills | m | Olympic Medalists | |
| Hannah Mills | f | Olympic Medalists | |
| John Mills | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Magnus Mills | m | Notable Writers | |
| Melissa Mills | f | Olympic Medalists | |
| A. A. Milne | m | Notable Writers | |
| Matt Milne | m | Notable Actors and Entertainers | |
| Ralph Milner | m | Saints | |
| 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 | |
| George Milton | m | Fictional Characters from Books | |
| John Milton | m | Notable Writers | |
| Milan Milutinović | m | Other Leaders | |
| Vatroslav Mimica | m | Notable Filmmakers | |
| Alain Mimoun | m | Olympic Medalists | |
| Sumika Minamoto | f | Olympic Medalists | |
| Guram Minashvili | m | Olympic Medalists | |
| Anthony Minghella | m | Notable Filmmakers, Oscar Award Winners | |
| Marco Minghetti | m | Italian Presidents and Prime Ministers | |
| Charles Mingus | m | Notable Musicians | |
| Miniamin | m | Biblical Characters | |
| Miniamin | m | Biblical Characters | |
| Miniamin | m | Biblical Characters | |
| Irina Minkh | f | Olympic Medalists | |
| 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 | |
| George Minot | m | Nobel Prize Winners | |
| Lorena Miranda | f | Olympic Medalists | |
| Voja Mirić | m | Notable Actors and Entertainers | |
| Sašo Mirjanič | m | Olympic Medalists | |
| Joan Miró | m | Notable Artists | |
| Yelena Miroshina | f | Olympic Medalists | |
| Helen Mirren | f | Notable Actors and Entertainers, Oscar Award Winners | |
| James Mirrlees | m | Nobel Prize Winners | |
| Wataru Misaka | m | Notable Athletes | |
| Koichi Misawa | m | Olympic Medalists | |
| Steve Missillier | m | Notable Athletes, Olympic Medalists | |
| Frédéric Mistral | m | Nobel Prize Winners, Notable Writers | |
| Gabriela Mistral | f | Nobel Prize Winners, Notable Writers | |
| Rohinton Mistry | m | Notable Writers | |
| Matthew Mitcham | m | Olympic Medalists | |
| Bobby Mitchell | m | Hall-of-Famers | |
| Cam Mitchell | m | Fictional Characters from Television | |
| Delores Mitchell | f | Fictional Characters from Television | |
| Dennis Mitchell | m | Olympic Medalists | |
| Henry Mitchell | m | Fictional Characters from Television | |
| Joni Mitchell | f | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Manteo Mitchell | m | Olympic Medalists | |
| Margaret Mitchell | f | Notable Writers, Pulitzer Award Winners | |
| Mary Ann Mitchell | f | Fictional Characters from Television | |
| Mitch Mitchell | m | Rock and Roll Hall-of-Famers | |
| Nikole Mitchell | f | Olympic Medalists | |
| Peter D. Mitchell | m | Nobel Prize Winners | |
| Ryan Mitchell | m | Olympic Medalists | |
| Thomas Mitchell | m | Notable Explorers and Adventurers | |
| Robert Mitchum | m | Notable Actors and Entertainers | |
| Vukica Mitić | f | Olympic Medalists | |
| Mitso Asen | m | Bulgarian Kings and Tsars | |
| François Mitterrand | m | French Presidents and Prime Ministers | |
| Daisuke Miura | m | Olympic Medalists | |
| Haruma Miura | m | Notable Actors and Entertainers | |
| Takashi Miwa | m | Olympic Medalists | |
| Ron Mix | m | Hall-of-Famers | |
| Hiromi Miyake | f | Olympic Medalists | |
| Emiko Miyamoto | f | Olympic Medalists | |
| Miyamoto Musashi | m | Notable Military Figures | |
| Shigeru Miyamoto | m | Notable Artists | |
| Shinya Miyamoto | m | Olympic Medalists | |
| Junichi Miyashita | m | Olympic Medalists | |
| Johnny Mize | m | Hall-of-Famers, Notable Athletes | |
| Grigory Mkrtychan | m | Olympic Medalists | |
| Petar Mladenov | m | Bulgarian Presidents and Prime Ministers | |
| Mo Yan | m | Nobel Prize Winners, Notable Writers | |
| René Moawad | m | Other Leaders | |
| Diana Mocanu | f | Olympic Medalists | |
| Mochta | m | Saints | |
| Luchesio Modestini | m | Saints | |
| Amedeo Modigliani | m | Notable Artists | |
| Franco Modigliani | m | Nobel Prize Winners | |
| Roger Moens | m | Olympic Medalists | |
| Emma Moffatt | f | Olympic Medalists | |
| John Moffitt | m | Olympic Medalists | |
| Dietmar Mögenburg | m | Olympic Medalists | |
| Oscar Moglia | m | Olympic Medalists | |
| Anke Möhring | f | Olympic Medalists | |
| Henri Moissan | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Mario Molina | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Paul Molitor | m | Hall-of-Famers, Notable Athletes | |
| Gianna Beretta Molla | f | Saints | |
| Paula Mollenhauer | f | Olympic Medalists | |
| Ivan Möller | m | Olympic Medalists | |
| Lorraine Moller | f | Olympic Medalists | |
| Silke Möller | f | Olympic Medalists | |
| Endre Molnár | m | Olympic Medalists | |
| István Molnár | m | Olympic Medalists | |
| Tamás Molnár | m | Olympic Medalists | |
| Frederick Moloney | m | Olympic Medalists | |
| N. Scott Momaday | m | Notable Writers, Pulitzer Award Winners | |
| Theodor Mommsen | m | Nobel Prize Winners, Notable Philosophers and Thinkers, Notable Writers | |
| Piet Mondrian | m | Notable Artists | |
| Monegundis | f | Saints | |
| Claude Monet | m | Notable Artists | |
| Ernesto Teodoro Moneta | m | Nobel Prize Winners | |
| Möngke Khan | m | Other Royalty | |
| Monica | f | Saints | |
| Monica | f | Fictional Characters from Television | |
| Moninne | f | Saints | |
| Mo'Nique | f | Notable Actors and Entertainers, Oscar Award Winners | |
| António Egas Moniz | m | Nobel Prize Winners | |
| Art Monk | m | Hall-of-Famers | |
| Myra Monkhouse | f | Fictional Characters from Television | |
| Jacques Monod | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Bill Monroe | m | Notable Musicians | |
| Earl Monroe | m | Hall-of-Famers, Notable Athletes | |
| Elizabeth Monroe | f | American First Ladies | |
| James Monroe | m | American Presidents | |
| Lindsay Monroe | f | Fictional Characters from Television | |
| Marilyn Monroe | f | Notable Actors and Entertainers | |
| Saffron Monsoon | f | Fictional Characters from Television | |
| Luc Montagnier | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Felicity Montagu | f | Notable Actors and Entertainers | |
| Michel de Montaigne | m | Notable Writers | |
| Eugenio Montale | m | Nobel Prize Winners, Notable Writers | |
| Joe Montana | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Alejandro Montecchia | m | Olympic Medalists | |
| Cory Monteith | m | Notable Actors and Entertainers | |
| Angela Montenegro | f | Fictional Characters from Television | |
| Pablo Montes | m | Olympic Medalists | |
| Bernard Montgomery | m | Notable Military Figures | |
| Charles Montgomery | m | Fictional Characters from Television | |
| Dharma Montgomery | f | Fictional Characters from Television | |
| Edward Montgomery | m | Fictional Characters from Television | |
| Greg Montgomery | m | Fictional Characters from Television | |
| 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 | |
| Carlo Monti | m | Olympic Medalists | |
| Luis Monti | m | Notable Athletes | |
| Frank Montieth | m | Olympic Medalists | |
| Anne Montminy | f | Olympic Medalists | |
| Jude Monye | m | Olympic Medalists | |
| Alastor "Mad-Eye" Moody | m | Harry Potter Characters | |
| Heather Moody | f | Olympic Medalists | |
| Keith Moon | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Warren Moon | m | Hall-of-Famers | |
| Angela Moore | f | Fictional Characters from Television | |
| Belle Moore | f | Olympic Medalists | |
| Billie Moore | f | Hall-of-Famers | |
| Bobby Moore | m | Notable Athletes | |
| Dickie Moore | m | Hall-of-Famers, Notable Athletes | |
| Dudley Moore | m | Notable Actors and Entertainers | |
| G. E. Moore | m | Notable Philosophers and Thinkers | |
| Johnny Moore | m | Rock and Roll Hall-of-Famers | |
| Julianne Moore | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Lenny Moore | m | Hall-of-Famers | |
| Mary Tyler Moore | f | Emmy Award Winners, Notable Actors and Entertainers | |
| Michael Moore | m | Notable Filmmakers | |
| Nick Moore | m | Fictional Characters from Television | |
| Stanford Moore | m | Nobel Prize Winners | |
| Tim Moore | m | Notable Actors and Entertainers | |
| Adrian Moorhouse | m | Olympic Medalists | |
| Antonia Moraiti | f | Olympic Medalists | |
| Evangelia Moraitidou | f | Olympic Medalists | |
| Salvatore Morale | m | Olympic Medalists | |
| Juan Morales | m | Olympic Medalists | |
| Pablo Morales | m | Olympic Medalists | |
| Paddy Moran | m | Hall-of-Famers | |
| Karen Moras | f | Olympic Medalists | |
| Ondřej Moravec | m | Olympic Medalists | |
| Thomas More | m | Notable Philosophers and Thinkers, Saints | |
| Janet Moreau | f | Olympic Medalists | |
| Jeanne Moreau | f | Notable Actors and Entertainers | |
| Louis-Zéphirin Moreau | m | Saints | |
| Ezequiél Moreno y Díaz | m | Saints | |
| Héctor Moreno | m | Notable Athletes | |
| Rita Moreno | f | Notable Actors and Entertainers, Oscar Award Winners, Tony Award Winners | |
| Yipsi Moreno | f | Olympic Medalists | |
| Howie Morenz | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Segismundo Moret | m | Spanish Prime Ministers | |
| Darren Morfitt | m | Notable Actors and Entertainers | |
| Ben Morgan | m | Notable Athletes | |
| Colin Morgan | m | Notable Actors and Entertainers | |
| Frannie Morgan | f | Fictional Characters from Television | |
| Garfield Morgan | m | Notable Actors and Entertainers | |
| Gretchen Morgan | f | Fictional Characters from Television | |
| Harry Morgan | m | Fictional Characters from Books, Fictional Characters from Television | |
| Henry Morgan | m | Notable Evildoers | |
| Joe Morgan | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Johnny Morgan | m | Fictional Characters from Television | |
| Joseph Morgan | m | Notable Actors and Entertainers | |
| Kate Morgan | f | Fictional Characters from Television | |
| Lilah Morgan | f | Fictional Characters from Television | |
| Rob Morgan | m | Notable Actors and Entertainers | |
| Sandra Morgan | f | Olympic Medalists | |
| Thomas Hunt Morgan | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Bobbie Morganstern | f | Fictional Characters from Television | |
| Masahiko Mori | m | Olympic Medalists | |
| Ross Moriarty | m | Notable Athletes | |
| En'yu | m | Japanese Emperors | |
| Masao Morinaka | m | Olympic Medalists | |
| Max Morinière | m | Olympic Medalists | |
| Kōichi Morishita | m | Olympic Medalists | |
| Alanis Morissette | f | Grammy Award Winners, Notable Musicians | |
| Kimie Morita | f | Olympic Medalists | |
| Tomomi Morita | m | Olympic Medalists | |
| Moritz of Liechtenstein | m | Other Royalty | |
| Catherine Morland | f | Fictional Characters from Books | |
| James Morland | m | Fictional Characters from Books | |
| Angela Morley | f | Notable Musicians | |
| Iván Moro | m | Olympic Medalists | |
| Kazan | m | Japanese Emperors | |
| Pierina Morosini | f | Saints | |
| Ennio Morricone | m | Notable Musicians | |
| Morris | m | Notable Artists | |
| Archie Morris | m | Fictional Characters from Television | |
| Bud Morris | m | Fictional Characters from Television | |
| Devon Morris | m | Olympic Medalists | |
| Glenn Morris | m | Olympic Medalists | |
| Sheila Morris | f | Fictional Characters from Television | |
| Siwan Morris | f | Notable Actors and Entertainers | |
| Warren Morris | m | Olympic Medalists | |
| Zack Morris | m | Fictional Characters from Television | |
| Toni Morrison | f | Nobel Prize Winners, Notable Writers, Pulitzer Award Winners | |
| Van Morrison | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Victor Morrison | m | Fictional Characters from Television | |
| Walter "Junie" Morrison | m | Rock and Roll Hall-of-Famers | |
| David Morrissey | m | Notable Actors and Entertainers | |
| David Morse | m | Notable Actors and Entertainers | |
| Laila Morse | f | Notable Actors and Entertainers | |
| Samuel Morse | m | Notable Scientists and Inventors | |
| Dale T. Mortensen | m | Nobel Prize Winners | |
| Édouard Mortier, duc de Trévise | m | French Presidents and Prime Ministers | |
| Chet Morton | m | Fictional Characters from Books | |
| Lucy Morton | f | Olympic Medalists | |
| Giuseppe Moscati | m | Saints | |
| Alain Mosconi | m | Olympic Medalists | |
| Edwin Moses | m | Notable Athletes, Olympic Medalists | |
| Merrill Moses | m | Olympic Medalists | |
| Levan Moseshvili | m | Olympic Medalists | |
| Bill Mosienko | m | Hall-of-Famers | |
| Karla Mosley | f | Notable Actors and Entertainers | |
| Larry Moss | m | Fictional Characters from Television | |
| Rudolf Mössbauer | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Anthony Mosse | m | Olympic Medalists | |
| Raheem Mostert | m | Notable Athletes | |
| Rosa Mota | f | Olympic Medalists | |
| Marion Motley | m | Hall-of-Famers | |
| Annie Mott | f | Fictional Characters from Television | |
| John Mott | m | Nobel Prize Winners | |
| Nevill Francis Mott | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Ben Roy Mottelson | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Wendell Mottley | m | Olympic Medalists | |
| Alan Mouchawar | m | Olympic Medalists | |
| Eugène Mougin | m | Olympic Medalists | |
| José Mourinho | m | Notable Athletes | |
| René Mourlon | m | Olympic Medalists | |
| Alonzo Mourning | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Oren Moverman | m | Notable Filmmakers | |
| Roberto Moya | m | Olympic Medalists | |
| Mstislav I the Great | m | Russian Grand Dukes and Tsars | |
| Mstislav II | m | Russian Grand Dukes and Tsars | |
| Alfons Mucha | m | Notable Artists | |
| Mufasa | m | Fictional Characters from Movies | |
| Abu l-Walid Muhammad ibn Ahmad ibn Rushd | m | Notable Philosophers and Thinkers | |
| Muhammad | m | Notable Military Figures, Notable Philosophers and Thinkers | |
| Muhammad al-Amin | m | Islamic Caliphs | |
| Charlotte Mühe | f | Olympic Medalists | |
| Muimne | m | Characters in Celtic Mythology, Irish Kings | |
| Muinemón | m | Characters in Celtic Mythology, Irish Kings | |
| Eve Muirhead | f | Olympic Medalists | |
| Marianne Muis | f | Olympic Medalists | |
| Mildred Muis | f | Olympic Medalists | |
| Razija Mujanović | f | Olympic Medalists | |
| Joseph Mukasa | m | Saints | |
| Mbulaeni Mulaudzi | m | Olympic Medalists | |
| Joe Mullen | m | Hall-of-Famers, Notable Athletes | |
| Eduard Müller | m | Swiss Presidents | |
| Gerd Müller | m | Notable Athletes | |
| Harold Muller | m | Olympic Medalists | |
| Helmar Müller | m | Olympic Medalists | |
| Hermann Joseph Muller | m | Nobel Prize Winners | |
| Hermann Müller | m | German Chancellors and Presidents | |
| Herta Müller | f | Nobel Prize Winners, Notable Writers | |
| K. Alex Müller | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Paul Hermann Müller | m | Nobel Prize Winners | |
| Romy Müller | f | Olympic Medalists | |
| Tib Muller | f | Fictional Characters from Books | |
| Clarissa Mullery | f | Fictional Characters from Television | |
| Carey Mulligan | f | Notable Actors and Entertainers | |
| Richard Mulligan | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Robert S. Mulliken | m | Nobel Prize Winners | |
| Chris Mullin | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Kary Mullis | m | Nobel Prize Winners | |
| Brian Mulroney | m | Canadian Prime Ministers | |
| Matiya Mulumba | m | Saints | |
| Athena Mulvain | f | Fictional Characters from Movies | |
| Álex Mumbrú | m | Olympic Medalists | |
| Edvard Munch | m | Notable Artists | |
| Mike Munchak | m | Hall-of-Famers | |
| Robert Mundell | m | Nobel Prize Winners | |
| Mungo | m | Saints | |
| Paul Muni | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Thomas Munkelt | m | Olympic Medalists | |
| Anthony Muñoz | m | Hall-of-Famers | |
| Óscar Muñoz | m | Olympic Medalists | |
| Alice Munro | f | Nobel Prize Winners, Notable Writers | |
| Caroline Munro | f | Notable Actors and Entertainers | |
| Dunc Munro | m | Olympic Medalists | |
| Jill Munroe | f | Fictional Characters from Television | |
| Kris Munroe | f | Fictional Characters from Television | |
| David Munson | m | Olympic Medalists | |
| Diana Munz | f | Olympic Medalists | |
| Murad I | m | Ottoman Sultans | |
| Murad II | m | Ottoman Sultans | |
| Murad III | m | Islamic Caliphs, Ottoman Sultans | |
| Murad IV | m | Islamic Caliphs, Ottoman Sultans | |
| Murad V | m | Islamic Caliphs, Ottoman Sultans | |
| Ferid Murad | m | Nobel Prize Winners | |
| Nadia Murad | f | Nobel Prize Winners | |
| Arihito Muramatsu | m | Olympic Medalists | |
| Norberto Murara Neto | m | Notable Athletes, Olympic Medalists | |
| Hasan Muratović | m | Other Leaders | |
| Ira Murchison | m | Olympic Medalists | |
| Loren C. Murchison | m | Olympic Medalists | |
| David Murdoch | m | Olympic Medalists | |
| Iris Murdoch | f | Notable Writers | |
| Bartolomé Estéban Murillo | m | Notable Artists | |
| Ben Murphy | m | Fictional Characters from Television | |
| Calvin Murphy | m | Hall-of-Famers, Notable Athletes | |
| Charles "Stretch" Murphy | m | Hall-of-Famers | |
| John Murphy | m | Notable Musicians | |
| Kate Murphy | f | Fictional Characters from Television | |
| Larry Murphy | m | Hall-of-Famers, Notable Athletes | |
| Laura Murphy | f | Fictional Characters from Television | |
| Sheree Murphy | f | Notable Actors and Entertainers | |
| William P. Murphy | m | Nobel Prize Winners | |
| Andy Murray | m | Notable Athletes, Olympic Medalists | |
| Eddie Murray | m | Hall-of-Famers, Notable Athletes | |
| Eric Murray | m | Olympic Medalists | |
| Hannah Murray | f | Notable Actors and Entertainers | |
| Jamie Murray | m | Notable Athletes | |
| Joseph Murray | m | Nobel Prize Winners | |
| Samantha Murray | f | Olympic Medalists | |
| Yvonne Murray | f | Olympic Medalists | |
| Murugan | m | Characters in Hindu Mythology | |
| Ahmed Musa | m | Notable Athletes | |
| Dmitriy Muserskiy | m | Olympic Medalists | |
| Charles Musgrove | m | Fictional Characters from Books | |
| Henrietta Musgrove | f | Fictional Characters from Books | |
| Louisa Musgrove | f | Fictional Characters from Books | |
| Mary Musgrove | f | Fictional Characters from Books | |
| Stan Musial | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Musica | f | Characters in Greek Mythology | |
| Bogdan Musiol | m | Olympic Medalists | |
| Milan Muškatirović | m | Olympic Medalists | |
| Petar Muslim | m | Notable Athletes, Olympic Medalists | |
| George Musso | m | Hall-of-Famers | |
| Grace Musso | f | Fictional Characters from Television | |
| Mustafa I | m | Islamic Caliphs, Ottoman Sultans | |
| Mustafa II | m | Islamic Caliphs, Ottoman Sultans | |
| Mustafa III | m | Islamic Caliphs, Ottoman Sultans | |
| Mustafa IV | m | Islamic Caliphs, Ottoman Sultans | |
| Firuz Mustafayev | m | Notable Politicians and Statespeople | |
| Zoran Mustur | m | Olympic Medalists | |
| Maddalena Musumeci | f | Olympic Medalists | |
| Michael Musyoki | m | Olympic Medalists | |
| Ayaz Mutallibov | m | Other Leaders | |
| Emir Mutapčić | m | Olympic Medalists | |
| Maria Mutola | f | Notable Athletes, Olympic Medalists | |
| Alphonsa Muttathupadathu | f | Saints | |
| William Mutwol | m | Olympic Medalists | |
| Jeanette Myburgh | f | Olympic Medalists | |
| Natalie Myburgh | f | Olympic Medalists | |
| Curtis Myden | m | Olympic Medalists | |
| Edwin Myers | m | Olympic Medalists | |
| Michael Myers | m | Fictional Characters from Movies | |
| Mike Myers | m | Notable Actors and Entertainers | |
| Nina Myers | f | Fictional Characters from Television | |
| Roger Myerson | m | Nobel Prize Winners | |
| John Mykkanen | m | Olympic Medalists | |
| Anthoula Mylonaki | f | Olympic Medalists | |
| Alva Myrdal | f | Nobel Prize Winners | |
| Gunnar Myrdal | m | Nobel Prize Winners, Notable Philosophers and Thinkers | |
| Magne Myrmo | m | Olympic Medalists | |
| Anatoliy Myshkin | m | Olympic Medalists | |
| Jonni Myyrä | m | Olympic Medalists | |
| John Mary Mzec | m | Saints | |
| Naaman | m | Biblical Characters | |
| Naaman | m | Biblical Characters | |
| Naaman | m | Biblical Characters | |
| Naaman | m | Biblical Characters | |
| Vladimir Nabokov | m | Notable Writers | |
| Nabor | m | Saints | |
| Nadab | m | Biblical Characters | |
| Nadab | m | Biblical Characters | |
| Nadab | m | Biblical Characters | |
| Rafael Nadal | m | Notable Athletes | |
| Mustafa Nadarević | m | Notable Actors and Entertainers | |
| Nagarjuna | m | Notable Philosophers and Thinkers | |
| Nano Nagle | f | Saints | |
| Bronko Nagurski | m | Hall-of-Famers, Notable Athletes | |
| Nahash | m | Biblical Characters | |
| Nahash | m | Biblical Characters | |
| Nahash | m | Biblical Characters | |
| Nahath | m | Biblical Characters | |
| Nahath | m | Biblical Characters | |
| Nahath | m | Biblical Characters | |
| Mikha'il Na'ima | m | Notable Writers | |
| V. S. Naipaul | m | Nobel Prize Winners, Notable Writers | |
| Monica Naisen | f | Saints | |
| Kumi Nakada | f | Olympic Medalists | |
| Hiroshi Nakamoto | m | Olympic Medalists | |
| Daishin Nakamura | m | Olympic Medalists | |
| Mai Nakamura | f | Olympic Medalists | |
| Norihiro Nakamura | m | Olympic Medalists | |
| Reiko Nakamura | f | Olympic Medalists | |
| Yuko Nakanishi | f | Olympic Medalists | |
| Tenji | m | Japanese Emperors | |
| Miki Nakao | f | Olympic Medalists | |
| Mihovil Nakić-Vojnović | m | Olympic Medalists | |
| Anita Nall | f | Olympic Medalists | |
| James Nam | m | Saints | |
| Joe Namath | m | Hall-of-Famers, Notable Athletes | |
| Chūhei Nambu | m | Olympic Medalists | |
| Yoichiro Nambu | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Eddie "Crazy Eddie" Nambulous | m | Fictional Characters from Television | |
| Eric Namesnik | m | Olympic Medalists | |
| Ceferino Namuncurá | m | Saints | |
| Nana | f | Hurricanes and Tropical Storms | |
| Phil Nance | m | Fictional Characters from Television | |
| Fridtjof Nansen | m | Nobel Prize Winners, Notable Explorers and Adventurers | |
| Yigal Naor | m | Notable Actors and Entertainers | |
| Charles Napier | m | Notable Actors and Entertainers | |
| John Napier | m | Notable Philosophers and Thinkers | |
| Louis-Napoléon Bonaparte | m | Frankish and French Kings, French Presidents and Prime Ministers | |
| Napoleon Bonaparte | m | Frankish and French Kings, Notable Military Figures | |
| Giorgio Napolitano | m | Italian Presidents and Prime Ministers | |
| Narcissus of Athens | m | Biblical Characters, Saints | |
| Narcissus of Jerusalem | m | Saints | |
| Anna Nardini | f | Fictional Characters from Television | |
| April Nardini | f | Fictional Characters from Television | |
| Murakami | m | Japanese Emperors | |
| José Nasazzi | m | Notable Athletes | |
| George Nash | m | Olympic Medalists | |
| John Forbes Nash Jr. | m | Nobel Prize Winners, Notable Philosophers and Thinkers | |
| Nate | m | Hurricanes and Tropical Storms | |
| Nathalan | m | Saints | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Nathan | m | Biblical Characters | |
| Daniel Nathans | m | Nobel Prize Winners | |
| Giulio Natta | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Sergey Naumov | m | Olympic Medalists | |
| Dave Navarro | m | Notable Musicians | |
| Eli "Weevil" Navarro | m | Fictional Characters from Television | |
| Yitzhak Navon | m | Israeli Presidents and Prime Ministers | |
| Martina Navratilova | f | Notable Athletes | |
| Mya-Lecia Naylor | f | Notable Actors and Entertainers | |
| Anastasia Nazarenko | f | Olympic Medalists | |
| Irina Nazarova | f | Olympic Medalists | |
| Olga Nazarova | f | Olympic Medalists | |
| Catherine Ndereba | f | Olympic Medalists | |
| Patricia Neal | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Earle "Greasy" Neale | m | Hall-of-Famers | |
| Gail Neall | f | Olympic Medalists | |
| Ned | m | Fictional Characters from Television | |
| Louis Néel | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Cam Neely | m | Hall-of-Famers, Notable Athletes | |
| Liam Neeson | m | Notable Actors and Entertainers | |
| Ryk Neethling | m | Olympic Medalists | |
| Nefertiti | f | Other Royalty | |
| Ei-ichi Negishi | m | Nobel Prize Winners | |
| Nehemiah | m | Biblical Characters | |
| Nehemiah | m | Biblical Characters | |
| Nehemiah | m | Biblical Characters | |
| Erwin Neher | m | Nobel Prize Winners | |
| Mike Neill | m | Olympic Medalists | |
| Kathrin Neimke | f | Olympic Medalists | |
| Oldřich Nejedlý | m | Notable Athletes | |
| Adam Nelson | m | Olympic Medalists | |
| Alice Nelson | f | Fictional Characters from Television | |
| Bob Nelson | m | Notable Filmmakers | |
| Byron Nelson | m | Notable Athletes | |
| Horatio Nelson | m | Notable Military Figures | |
| John Nelson | m | Saints | |
| Lars Nelson | m | Olympic Medalists | |
| Imre Németh | m | Olympic Medalists | |
| Miklós Németh | m | Olympic Medalists | |
| Vladimir Nemshilov | m | Olympic Medalists | |
| Marie-Clémentine Anuarite Nengapeta | f | Saints | |
| Johann Nepomuk | m | Saints | |
| Filippo Neri | m | Saints | |
| Steffi Nerius | f | Olympic Medalists | |
| Walther Nernst | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Peter Nero | m | Grammy Award Winners | |
| Peter Francis Neron | m | Saints | |
| Pablo Neruda | m | Nobel Prize Winners, Notable Writers | |
| Derren Nesbitt | m | Notable Actors and Entertainers | |
| James Nesbitt | m | Notable Actors and Entertainers | |
| Stephanie Nesbitt | f | Olympic Medalists | |
| Jacob Ness | m | Fictional Characters from Television | |
| Nestor of Magydos | m | Saints | |
| Anthony Nesty | m | Olympic Medalists | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethanel | m | Biblical Characters | |
| Nethaniah | m | Biblical Characters | |
| Nethaniah | m | Biblical Characters | |
| Nethaniah | m | Biblical Characters | |
| Nethaniah | m | Biblical Characters | |
| Mildrette Netter | f | Olympic Medalists | |
| Dagmar Neubauer | f | Olympic Medalists | |
| John Neumann | m | Saints | |
| Otto Neumann | m | Olympic Medalists | |
| Paul Neumann | m | Olympic Medalists | |
| Otto Neururer | m | Saints | |
| Pauli Nevala | m | Olympic Medalists | |
| Ernie Nevers | m | Hall-of-Famers | |
| George Nevinson | m | Olympic Medalists | |
| Sybil Fenton Newall | f | Olympic Medalists | |
| P. H. Newby | m | Notable Writers | |
| Thomas Newcomen | m | Notable Scientists and Inventors | |
| Sebastian Newdigate | m | Saints | |
| Mike Newell | m | Notable Filmmakers | |
| Hal Newhouser | m | Hall-of-Famers, Most Valuable Players | |
| Steve Newlin | m | Fictional Characters from Books, Fictional Characters from Television | |
| Howard Newly | m | Fictional Characters from Television | |
| Regina Newly | f | Fictional Characters from Television | |
| Michael "Newmie" Newman | m | Fictional Characters from Television | |
| Paul Newman | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Ozzie Newsome | m | Hall-of-Famers | |
| Arthur L. Newton | m | Olympic Medalists | |
| C. M. Newton | m | Hall-of-Famers | |
| Isaac Newton | m | Notable Philosophers and Thinkers, Notable Scientists and Inventors | |
| Thandiwe Newton | f | Notable Actors and Entertainers | |
| Anthony Neyrot | m | Saints | |
| Haing S. Ngor | m | Notable Actors and Entertainers, Oscar Award Winners | |
| John Ngugi | m | Olympic Medalists | |
| Nian Yun | f | Olympic Medalists | |
| Nicanor the Deacon | m | Biblical Characters, Saints | |
| Nicasius of Rheims | m | Saints | |
| Niccolò de' Conti | m | Notable Explorers and Adventurers | |
| Nicephorus I | m | Roman and Byzantine Emperors | |
| Nicephorus II Phocas | m | Roman and Byzantine Emperors | |
| Nicephorus III Botaniates | m | Roman and Byzantine Emperors | |
| Nicetas the Goth | m | Saints | |
| Caleb Nichol | m | Fictional Characters from Television | |
| Wilfred Nichol | m | Olympic Medalists | |
| Nicholas | m | Bishops of Rome and the Popes, Saints | |
| Nicholas | m | Bishops of Rome and the Popes | |
| Nicholas II | m | Bishops of Rome and the Popes | |
| Nicholas III | m | Bishops of Rome and the Popes | |
| Nicholas IV | m | Bishops of Rome and the Popes | |
| Nicholas of Cusa | m | Notable Philosophers and Thinkers | |
| Nicholas V | m | Bishops of Rome and the Popes | |
| Phoebe Nicholls | f | Notable Actors and Entertainers | |
| Alfred Nichols | m | Olympic Medalists | |
| Charles "Kid" Nichols | m | Hall-of-Famers | |
| Mike Nichols | m | Notable Filmmakers, Oscar Award Winners, Tony Award Winners | |
| Zack Nichols | m | Fictional Characters from Television | |
| Jack Nicholson | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Jack Nicklaus | m | Notable Athletes | |
| Kate Nickleby | f | Fictional Characters from Books | |
| Ralph Nickleby | m | Fictional Characters from Books | |
| Lesley Nicol | f | Notable Actors and Entertainers | |
| Nicolas of Sweden | m | Other Royalty | |
| Charles Nicolle | m | Nobel Prize Winners | |
| Nictopolion | m | Saints | |
| Lachlan Nieboer | m | Notable Actors and Entertainers | |
| Phil Niekro | m | Hall-of-Famers, Notable Athletes | |
| Niels | m | Danish Kings and Queens | |
| Nicéphore Niépce | m | Notable Scientists and Inventors | |
| Friedrich Nietzsche | m | Notable Philosophers and Thinkers | |
| Joe Nieuwendyk | m | Hall-of-Famers, Notable Athletes | |
| Vincent Nigel-Murray | m | Fictional Characters from Television | |
| Frank Nighbor | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Bill Nighy | m | Notable Actors and Entertainers | |
| Paul Nihill | m | Olympic Medalists | |
| Vilho Niittymaa | m | Olympic Medalists | |
| Pierre Nijs | m | Olympic Medalists | |
| Boris Nikitin | m | Olympic Medalists | |
| Elmer Niklander | m | Olympic Medalists | |
| Niklaus von Flüe | m | Saints | |
| Nikolai I | m | Russian Grand Dukes and Tsars | |
| Nikolai II | m | Russian Grand Dukes and Tsars | |
| Nikolai of Denmark | m | Other Royalty | |
| Nikolaus of Liechtenstein | m | Other Royalty | |
| Igor Nikulin | m | Olympic Medalists | |
| Niles | m | Fictional Characters from Television | |
| Nils Nilsson | m | Olympic Medalists | |
| Otto Nilsson | m | Olympic Medalists | |
| Nimrod | m | Fictional Characters from Television | |
| Ninian | m | Saints | |
| Nino | f | Saints | |
| Nintoku | m | Japanese Emperors | |
| Marshall Warren Nirenberg | m | Nobel Prize Winners | |
| Masafumi Nishi | m | Olympic Medalists | |
| Shuhei Nishida | m | Olympic Medalists | |
| Kazutaka Nishiyama | m | Olympic Medalists | |
| Ray Nitschke | m | Hall-of-Famers | |
| Pat Nixon | f | American First Ladies | |
| Richard Nixon | m | American Presidents | |
| Vénuste Niyongabo | m | Olympic Medalists | |
| Denis Nizhegorodov | m | Olympic Medalists | |
| Thomas N'Kono | m | Notable Athletes | |
| Nicolas N'Koulou | m | Notable Athletes | |
| Reg Noble | m | Hall-of-Famers, Notable Athletes | |
| Trisha Noble | f | Notable Actors and Entertainers | |
| Peter Nocke | m | Olympic Medalists | |
| Philip Noel-Baker | m | Nobel Prize Winners, Olympic Medalists | |
| Newman Noggs | m | Fictional Characters from Books | |
| Zurab Noghaideli | m | Georgian Presidents and Prime Ministers | |
| Mizuki Noguchi | f | Olympic Medalists | |
| Philippe Noiret | m | Notable Actors and Entertainers | |
| Masahiro Nojima | m | Olympic Medalists | |
| Malcolm Nokes | m | Olympic Medalists | |
| Christopher Nolan | m | Notable Filmmakers | |
| John Nolan | m | Notable Actors and Entertainers | |
| Jonathan Nolan | m | Notable Filmmakers | |
| Wes Nolan | m | Fictional Characters from Television | |
| Joe Noland | m | Fictional Characters from Television | |
| Peter Nolasco | m | Saints | |
| Fan Noli | m | Albanian Presidents and Prime Ministers, Notable Writers | |
| Chuck Noll | m | Hall-of-Famers | |
| Nick Nolte | m | Notable Actors and Entertainers | |
| Leo Nomellini | m | Hall-of-Famers | |
| Nong Qunhua | f | Olympic Medalists | |
| Nonna of Nazianzus | f | Saints | |
| Raymond Nonnatus | m | Saints | |
| Erki Nool | m | Olympic Medalists | |
| Norbert of Xanten | m | Saints | |
| Kathleen Nord | f | Olympic Medalists | |
| Adolf Erik Nordenskiöld | m | Notable Explorers and Adventurers | |
| Sara Nordenstam | f | Olympic Medalists | |
| William Nordhaus | m | Nobel Prize Winners | |
| Wolfgang Nordwig | m | Olympic Medalists | |
| Martha Norelius | f | Olympic Medalists | |
| Svea Norén | f | Olympic Medalists | |
| Tenzing Norgay | m | Notable Explorers and Adventurers | |
| Reizei | m | Japanese Emperors | |
| Maurice Norland | m | Olympic Medalists | |
| Peter Norman | m | Olympic Medalists | |
| Harald Norpoth | m | Olympic Medalists | |
| Crystal Norris | f | Fictional Characters from Books, Fictional Characters from Television | |
| Hermione Norris | f | Notable Actors and Entertainers | |
| Justin Norris | m | Olympic Medalists | |
| Ronald George Wreyford Norrish | m | Nobel Prize Winners | |
| Douglass North | m | Nobel Prize Winners | |
| Frederick North | m | British Prime Ministers | |
| George North | m | Notable Athletes | |
| John Howard Northrop | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Edward Norton | m | Notable Actors and Entertainers | |
| Emerson Norton | m | Olympic Medalists | |
| James Norton | m | Notable Actors and Entertainers | |
| Russell Norton | m | Fictional Characters from Television | |
| Oliver Norwood | m | Notable Athletes | |
| Notburga | f | Saints | |
| Notker the Stammerer | m | Saints | |
| Slobodan Novak | m | Notable Writers | |
| Novatian | m | Bishops of Rome and the Popes | |
| Novatus | m | Saints | |
| Agostino Novello | m | Saints | |
| Olga Novokshchenova | f | Olympic Medalists | |
| Mirko Novosel | m | Hall-of-Famers | |
| Konstantin Novoselov | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Joanna Nowicka | f | Olympic Medalists | |
| Noyori Ryōji | m | Nobel Prize Winners | |
| Dai Dai N'tab | m | Notable Athletes | |
| Andrea Nugent | f | Olympic Medalists | |
| Suiko | f | Japanese Emperors | |
| Henk Numan | m | Olympic Medalists | |
| Nun | m | Biblical Characters | |
| Holger Nurmela | m | Olympic Medalists | |
| Sulo Nurmela | m | Olympic Medalists | |
| Paavo Nurmi | m | Notable Athletes, Olympic Medalists | |
| Paul Nurse | m | Nobel Prize Winners | |
| Christiane Nüsslein-Volhard | f | Nobel Prize Winners, Notable Scientists and Inventors | |
| Robert Nutter | m | Saints | |
| Nyambayaryn Tögstsogt | m | Olympic Medalists | |
| Suleiman Nyambui | m | Olympic Medalists | |
| Radim Nyč | m | Olympic Medalists | |
| Lacey Nymeyer | f | Olympic Medalists | |
| Mimoun Oaïssa | m | Notable Actors and Entertainers | |
| Gary Oakes | m | Olympic Medalists | |
| Heather Oakes | f | Olympic Medalists | |
| Tenmu | m | Japanese Emperors | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Obadiah | m | Biblical Characters | |
| Barack Obama | m | American Presidents, Nobel Prize Winners | |
| Michelle Obama | f | American First Ladies | |
| Obed | m | Biblical Characters | |
| Obed | m | Biblical Characters | |
| Obed | m | Biblical Characters | |
| Obed | m | Biblical Characters | |
| Obed | m | Biblical Characters | |
| Obed-Edom | m | Biblical Characters | |
| Obed-Edom | m | Biblical Characters | |
| Obed-Edom | m | Biblical Characters | |
| Sigfrid Öberg | m | Olympic Medalists | |
| Eugene Oberst | m | Olympic Medalists | |
| Giorgio Oberweger | m | Olympic Medalists | |
| Francis Obikwelu | m | Olympic Medalists | |
| Shomu | m | Japanese Emperors | |
| Paulo Obradović | m | Notable Athletes, Olympic Medalists | |
| Saša Obradović | m | Olympic Medalists | |
| Željko Obradović | m | Olympic Medalists | |
| Grigore Obreja | m | Olympic Medalists | |
| Morris O'Brian | m | Fictional Characters from Television | |
| Ed O'Brien | m | Rock and Roll Hall-of-Famers | |
| Seán O'Brien | m | Notable Athletes | |
| Terence Albert O'Brien | m | Saints | |
| Werner Obschernikat | m | Olympic Medalists | |
| Isabella Ochichi | f | Olympic Medalists | |
| Severo Ochoa | m | Nobel Prize Winners | |
| Deborah Ochs | f | Olympic Medalists | |
| Edwin O'Connor | m | Pulitzer Award Winners | |
| Frances O'Connor | f | Notable Actors and Entertainers | |
| Herbert "Buddy" O'Connor | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Mary Anne O'Connor | f | Olympic Medalists | |
| Sarah O'Connor | f | Fictional Characters from Television | |
| Sinéad O'Connor | f | Notable Musicians | |
| Mikio Oda | m | Olympic Medalists | |
| Conor O'Devany | m | Saints | |
| Odilia | f | Saints | |
| Odilo of Cluny | m | Saints | |
| Máirtín Ó Direáin | m | Notable Writers | |
| Josef Odložil | m | Olympic Medalists | |
| Ture Ödlund | m | Olympic Medalists | |
| Odo Count of Paris | m | Frankish and French Kings | |
| Odo of Cluny | m | Saints | |
| Odo of Novara | m | Saints | |
| Roger O'Donnell | m | Rock and Roll Hall-of-Famers | |
| Yomei | m | Japanese Emperors | |
| Ōe Kenzaburō | m | Nobel Prize Winners, Notable Writers | |
| Sueo Ōe | m | Olympic Medalists | |
| Trent Oeltjen | m | Olympic Medalists | |
| Alexander Dale Oen | m | Olympic Medalists | |
| Óengus | m | Scottish Kings and Queens | |
| Óengus of Tallaght | m | Saints | |
| Seán Ó Faoláin | m | Notable Writers | |
| Raymond Offner | m | Olympic Medalists | |
| Michihiro Ogasawara | m | Olympic Medalists | |
| Peter Skene Ogden | m | Notable Explorers and Adventurers | |
| John Ogilvie | m | Saints | |
| Yūki Ōgimi | f | Olympic Medalists | |
| Geminio Ognio | m | Olympic Medalists | |
| Anthony Ogogo | m | Olympic Medalists | |
| Falilat Ogunkoya | f | Olympic Medalists | |
| Oh Eun-seok | m | Olympic Medalists | |
| Soon-Tek Oh | m | Notable Actors and Entertainers | |
| Carreen O'Hara | f | Fictional Characters from Books, Fictional Characters from Movies | |
| Gerald O'Hara | m | Fictional Characters from Books | |
| Moira O'Hara | f | Fictional Characters from Television | |
| Scarlett O'Hara | f | Fictional Characters from Books, Fictional Characters from Movies | |
| Suellen O'Hara | f | Fictional Characters from Books, Fictional Characters from Movies | |
| Bertil Ohlin | m | Nobel Prize Winners | |
| Bertil Ohlson | m | Olympic Medalists | |
| Georg Ohm | m | Notable Scientists and Inventors | |
| Uno Öhrlund | m | Olympic Medalists | |
| Dermot O'Hurley | m | Saints | |
| Christine Ohuruogu | f | Olympic Medalists | |
| Junnin | m | Japanese Emperors | |
| Kalevi Oikarainen | m | Olympic Medalists | |
| Aikaterini Oikonomopoulou | f | Olympic Medalists | |
| Ojin | m | Japanese Emperors | |
| Kenzo | m | Japanese Emperors | |
| Yukiaki Okabe | m | Olympic Medalists | |
| Blessing Okagbare | f | Olympic Medalists | |
| Tetsuo Okamoto | m | Olympic Medalists | |
| Evald Okas | m | Notable Artists | |
| John O'Keefe | m | Nobel Prize Winners | |
| Georgia O'Keeffe | f | Notable Artists | |
| Natasha O'Keeffe | f | Notable Actors and Entertainers | |
| Jens Okking | m | Notable Actors and Entertainers | |
| Hideaki Okubo | m | Olympic Medalists | |
| Yoshihiro Okumura | m | Olympic Medalists | |
| Fethi Okyar | m | Turkish Presidents and Prime Ministers | |
| Olav II the Holy | m | Norwegian Kings and Queens, Saints | |
| George Andrew Olah | m | Nobel Prize Winners | |
| Hakeem Olajuwon | m | Hall-of-Famers, Most Valuable Players, Notable Athletes, Olympic Medalists | |
| Costicǎ Olaru | m | Olympic Medalists | |
| Ariel Olascoaga | m | Olympic Medalists | |
| Olav | m | Norwegian Kings and Queens | |
| Olav I | m | Norwegian Kings and Queens | |
| Olav III the Quiet | m | Norwegian Kings and Queens | |
| Olav V | m | Norwegian Kings and Queens, Olympic Medalists | |
| Oluf II | m | Danish Kings and Queens, Norwegian Kings and Queens | |
| Edward Oldcorne | m | Saints | |
| Clarence Oldfield | m | Olympic Medalists | |
| Gary Oldman | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Oleg | m | Russian Grand Dukes and Tsars | |
| Olga of Kiev | f | Russian Grand Dukes and Tsars, Saints | |
| Ercole Olgeni | m | Olympic Medalists | |
| Conni Oligario | f | Fictional Characters from Television | |
| Oliva of Brescia | f | Saints | |
| Bechara Oliveira | m | Notable Athletes | |
| Domingos Oliveira | m | Portuguese Presidents and Prime Ministers | |
| Talmo Oliveira | m | Olympic Medalists | |
| Walewska Oliveira | f | Olympic Medalists | |
| Harry Oliver | m | Hall-of-Famers | |
| Jamie Oliver | m | Notable Actors and Entertainers | |
| Olivia | f | Fictional Characters from Television | |
| Laurence Olivier | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Nadezhda Olizarenko | f | Olympic Medalists | |
| Ollegarius | m | Saints | |
| Ollom Fótla | m | Characters in Celtic Mythology, Irish Kings | |
| Bert Olmstead | m | Hall-of-Famers, Notable Athletes | |
| Olof Skötkonung | m | Saints, Swedish Kings and Queens | |
| Patrick O'Loughran | m | Saints | |
| Joachim Olsen | m | Olympic Medalists | |
| Jon Olsen | m | Olympic Medalists | |
| Merlin Olsen | m | Hall-of-Famers, Notable Athletes | |
| Robert "Lute" Olson | m | Hall-of-Famers | |
| Christian Olsson | m | Olympic Medalists | |
| Oluf I Hunger | m | Danish Kings and Queens | |
| Walter O'Malley | m | Hall-of-Famers | |
| Malachy O'More | m | Saints | |
| Omurtag | m | Bulgarian Kings and Tsars | |
| Abby O'Neil | f | Fictional Characters from Television | |
| Eugene O'Neill | m | Nobel Prize Winners, Notable Writers | |
| Naoise O'Neill | f | Fictional Characters from Television | |
| Onesiphorus | m | Biblical Characters, Saints | |
| Heike Kamerlingh Onnes | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Yoko Ono | f | Grammy Award Winners, Notable Artists, Notable Musicians | |
| Aiko Onozawa | f | Olympic Medalists | |
| Lars Onsager | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Onslow | m | Fictional Characters from Television | |
| Onuphrius | m | Saints | |
| Jack Oosterlaak | m | Olympic Medalists | |
| Charity Opara | f | Olympic Medalists | |
| DeObia Oparei | m | Notable Actors and Entertainers | |
| J. Robert Oppenheimer | m | Notable Scientists and Inventors | |
| Josh Oppenhol | m | Fictional Characters from Television | |
| Opportuna of Montreuil | f | Saints | |
| Marian Oprea | m | Olympic Medalists | |
| Carlos Oquendo | m | Olympic Medalists | |
| Viktor Orbán | m | Hungarian Presidents and Prime Ministers | |
| Baroness Orczy | f | Notable Writers | |
| Tihomir Orešković | m | Other Leaders | |
| Orhan | m | Ottoman Sultans | |
| Origen | m | Notable Philosophers and Thinkers | |
| Agustín Orion | m | Notable Athletes | |
| Luigi Orione | m | Saints | |
| Dolores O'Riordan | f | Notable Musicians | |
| Oluchi Orlandi | f | Notable Actors and Entertainers | |
| Orodes II | m | Persian and Iranian Kings and Queens | |
| Justino Orona Madrigal | m | Saints | |
| Jim O'Rourke | m | Hall-of-Famers | |
| Bobby Orr | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Hans Christian Ørsted | m | Notable Scientists and Inventors | |
| Amancio Ortega | m | Notable Businesspeople | |
| Cole Ortiz | m | Fictional Characters from Television | |
| Rita Ortiz | f | Fictional Characters from Television | |
| Yaima Ortíz | f | Olympic Medalists | |
| George F. Orton | m | Olympic Medalists | |
| Phina Oruche | f | Notable Actors and Entertainers | |
| George Orwell | m | Notable Writers | |
| Bernice Orwig | f | Olympic Medalists | |
| Komei | m | Japanese Emperors | |
| Yoshihiko Osaki | m | Olympic Medalists | |
| Osanna of Cattaro | f | Saints | |
| Osanna of Mantua | f | Saints | |
| Oludamola Osayomi | f | Olympic Medalists | |
| Harold Osborn | m | Olympic Medalists | |
| George Osborne | m | Fictional Characters from Books | |
| Ozzy Osbourne | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Ruth Osburn | f | Olympic Medalists | |
| Oscar I | m | Norwegian Kings and Queens, Swedish Kings and Queens | |
| Oscar II | m | Norwegian Kings and Queens, Swedish Kings and Queens | |
| Oscar of Belgium | m | Other Royalty | |
| Ann Osgerby | f | Olympic Medalists | |
| Douglas Osheroff | m | Nobel Prize Winners | |
| Kenkichi Oshima | m | Olympic Medalists | |
| Koichi Oshima | m | Olympic Medalists | |
| Leonid Osipov | m | Olympic Medalists | |
| Irina Osipova | f | Olympic Medalists | |
| Osman I | m | Ottoman Sultans | |
| Osman II | m | Islamic Caliphs, Ottoman Sultans | |
| Osman III | m | Islamic Caliphs, Ottoman Sultans | |