| Name | Gender | Categories | |
|---|
| John Cockcroft | m | Nobel Prize Winners, Notable Scientists and Inventors |  |
| J. M. Coetzee | m | Nobel Prize Winners, Notable Writers | |
| Sir John Coleville | m | Shakespearian Characters | |
| John Collier | m | Olympic Medalists | |
| John Coltrane | m | Notable Musicians | |
| John Baptist Con | m | Saints | |
| John Connor | m | Fictional Characters from Movies, Fictional Characters from Television | |
| John Cooper | m | Olympic Medalists | |
| John Cornelius | m | Saints | |
| John Cornforth | m | Nobel Prize Winners | |
| John Cotton | m | Olympic Medalists | |
| John Cregan | m | Olympic Medalists | |
| John Curtin | m | Australian Prime Ministers | |
| John Daly | m | Olympic Medalists | |
| John Dat | m | Saints | |
| John Davies | m | Olympic Medalists | |
| John Davies | m | Olympic Medalists | |
| John Deacon | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| John Deere | m | Notable Scientists and Inventors | |
| John Derbyshire | m | Olympic Medalists | |
| John Devitt | m | Olympic Medalists | |
| John DeWitt | m | Olympic Medalists | |
| John Diefenbaker | m | Canadian Prime Ministers | |
| John Doe | m | Fictional Characters from Song Titles | |
| John "Paddy" Driscoll | m | Hall-of-Famers | |
| John III Ducas Vatatzes | m | Roman and Byzantine Emperors, Saints | |
| John Eccles | m | Nobel Prize Winners | |
| John Eisele | m | Olympic Medalists | |
| John Ellis | m | Notable Musicians | |
| John Elway | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| J. R. Ewing | m | Fictional Characters from Television | |
| Sir John Falstaff | m | Shakespearian Characters | |
| Sir John Falstaff | m | Shakespearian Characters | |
| John Fenn | m | Nobel Prize Winners | |
| John Ferris | m | Olympic Medalists | |
| John Fingley | m | Saints | |
| John Flanagan | m | Olympic Medalists | |
| John Flaxman | m | Notable Artists | |
| John Fogerty | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| John Franklin | m | Notable Explorers and Adventurers | |
| John Wayne Gacy | m | Notable Evildoers | |
| John Gall | m | Olympic Medalists | |
| John Galsworthy | m | Nobel Prize Winners, Notable Writers | |
| John Garrels | m | Olympic Medalists | |
| John Gielgud | m | Notable Actors and Entertainers, Oscar Award Winners, Tony Award Winners | |
| John "Dizzy" Gillespie | m | Notable Musicians | |
| John William Godward | m | Notable Artists | |
| John B. Goodenough | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| John Gorton | m | Australian Prime Ministers | |
| John Gray | m | Olympic Medalists | |
| John Greer | m | Fictional Characters from Television | |
| John Gurdon | m | Nobel Prize Winners | |
| John Hagen | m | Fictional Characters from Television | |
| John Hall | m | New Zealand Prime Ministers | |
| John L. Hall | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| John Hamilton | m | Fictional Characters from Television | |
| John Hannah | m | Hall-of-Famers | |
| John Hargis | m | Olympic Medalists | |
| John Harsanyi | m | Nobel Prize Winners | |
| John Frederick Hencken | m | Olympic Medalists | |
| John Henry | m | Fictional Characters from Traditional Tales | |
| John Hersey | m | Notable Writers, Pulitzer Award Winners | |
| John Hicks | m | Nobel Prize Winners | |
| John Holland | m | Olympic Medalists | |
| John Holland | m | Shakespearian Characters | |
| John Lee Hooker | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| John Houseman | m | Notable Actors and Entertainers, Oscar Award Winners | |
| John Howard | m | Australian Prime Ministers | |
| John Hughes | m | Notable Filmmakers | |
| John Hum | m | Shakespearian Characters | |
| John Hume | m | Nobel Prize Winners | |
| John Hurt | m | Notable Actors and Entertainers | |
| John Irvin | m | Fictional Characters from Television | |
| John Isaacs | m | Hall-of-Famers | |
| John Jakes | m | Notable Writers | |
| John Jansson | m | Olympic Medalists | |
| John Henry Johnson | m | Hall-of-Famers | |
| John Paul Jones | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| John Kasich | m | Notable Politicians and Statespeople | |
| John Kendrew | m | Nobel Prize Winners | |
| John F. Kennedy | m | American Presidents | |
| John Kinsella | m | Olympic Medalists | |
| John Konrads | m | Olympic Medalists | |
| J. Michael Kosterlitz | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| John Kraaijkamp Sr. | m | Notable Actors and Entertainers | |
| John Krasinski | m | Notable Actors and Entertainers | |
| John Kuck | m | Olympic Medalists | |
| John Landy | m | Olympic Medalists | |
| John Legend | m | Grammy Award Winners, Notable Musicians | |
| John Lennon | m | Grammy Award Winners, Notable Musicians, Rock and Roll Hall-of-Famers | |
| John Walker Lindh | m | Notable Evildoers | |
| John Lithgow | m | Emmy Award Winners, Notable Actors and Entertainers | |
| John Henry Lloyd | m | Hall-of-Famers | |
| John Lodge | m | Rock and Roll Hall-of-Famers | |
| John Lydon | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| John Lynch | m | Hall-of-Famers | |
| John A. Macdonald | m | Canadian Prime Ministers | |
| John Mackey | m | Hall-of-Famers | |
| John James Rickard Macleod | m | Nobel Prize Winners | |
| John Madden | m | Hall-of-Famers | |
| John Maguire | m | Fictional Characters from Television | |
| John Major | m | British Prime Ministers | |
| John Marshall | m | Olympic Medalists | |
| John Martin | m | Notable Artists | |
| John C. Mather | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| John Mayer | m | Grammy Award Winners, Notable Musicians | |
| John McCain | m | Notable Politicians and Statespeople | |
| John McEwen | m | Australian Prime Ministers | |
| John C. McGinley | m | Notable Actors and Entertainers | |
| John McGraw | m | Hall-of-Famers | |
| John McLean | m | Olympic Medalists | |
| John "Bid" McPhee | m | Hall-of-Famers | |
| John Everett Millais | m | Notable Artists | |
| John Miller | m | Fictional Characters from Movies | |
| John Mills | m | Notable Actors and Entertainers, Oscar Award Winners | |
| John Moffitt | m | Olympic Medalists | |
| John Monckton | m | Olympic Medalists | |
| Sir John Montgomery | m | Shakespearian Characters | |
| Sir John Mortimer | m | Shakespearian Characters | |
| John Morton | m | Shakespearian Characters | |
| John Mott | m | Nobel Prize Winners | |
| John Murphy | m | Olympic Medalists | |
| John Mary Mzec | m | Saints | |
| John Naber | m | Olympic Medalists | |
| John Baptist Nam Chong-sam | m | Saints | |
| John Forbes Nash Jr. | m | Nobel Prize Winners, Notable Philosophers and Thinkers | |
| John Peter Néel | m | Saints | |
| John Nelson | m | Olympic Medalists | |
| John Nettles | m | Notable Actors and Entertainers | |
| John Neumann | m | Saints | |
| John Joe Nevin | m | Olympic Medalists | |
| John Howard Northrop | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| John Norton | m | Olympic Medalists | |
| John Norton | m | Olympic Medalists | |
| John V Palaeologus | m | Roman and Byzantine Emperors | |
| John Parker | m | Olympic Medalists | |
| John M. Perkins | m | Fictional Characters from Song Titles | |
| John Phillips Marquand | m | Notable Writers, Pulitzer Award Winners | |
| John Plessington | m | Saints | |
| John Polanyi | m | Nobel Prize Winners | |
| John Pople | m | Nobel Prize Winners | |
| John Powell | m | Olympic Medalists | |
| John Powell | m | Notable Musicians | |
| John James "Mr. Big" Preston | m | Fictional Characters from Television | |
| John Rambo | m | Olympic Medalists | |
| John Randle | m | Hall-of-Famers | |
| John Reed | m | Notable Journalists, Notable Writers | |
| John Regis | m | Olympic Medalists | |
| John Rhys-Davies | m | Notable Actors and Entertainers | |
| John Riggins | m | Hall-of-Famers | |
| John Rimmer | m | Olympic Medalists | |
| John Ritter | m | Emmy Award Winners, Notable Actors and Entertainers | |
| John D. Rockefeller | m | Notable Businesspeople | |
| John Roosma | m | Hall-of-Famers | |
| John Rugby | m | Shakespearian Characters | |
| John Ruskin | m | Notable Writers | |
| John "Honey" Russell | m | Hall-of-Famers | |
| John Ryan | m | Olympic Medalists | |
| John Salisbury | m | Olympic Medalists | |
| John Sandys | m | Saints | |
| John Schlesinger | m | Notable Filmmakers, Oscar Award Winners | |
| John Schommer | m | Hall-of-Famers | |
| John Robert Schrieffer | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| John Scott | m | Fictional Characters from Television | |
| John Seward | m | Fictional Characters from Books | |
| John Sherwood | m | Olympic Medalists | |
| Sir John Somerville | m | Shakespearian Characters | |
| John Philip Sousa | m | Notable Musicians | |
| John Southwell | m | Shakespearian Characters | |
| Sir John Stanley | m | Shakespearian Characters | |
| John Steinbeck | m | Nobel Prize Winners, Notable Writers, Pulitzer Award Winners | |
| John Stephens | m | Olympic Medalists | |
| John Stillman | m | Fictional Characters from Television | |
| John Stockton | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| John Story | m | Saints | |
| John Strutt, Lord Rayleigh | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| John Stuart | m | British Prime Ministers | |
| John Sulston | m | Nobel Prize Winners | |
| John Talbot | m | Shakespearian Characters | |
| John Taylor Jr. | m | Olympic Medalists | |
| John Tenniel | m | Notable Artists | |
| John Baptist Thanh | m | Saints | |
| John Thomas | m | Olympic Medalists | |
| John "Cat" Thompson | m | Hall-of-Famers | |
| John Sparrow David Thompson | m | Canadian Prime Ministers | |
| John Thompson | m | Hall-of-Famers | |
| John Thules | m | Saints | |
| J. R. R. Tolkien | m | Notable Writers | |
| John Kennedy Toole | m | Notable Writers, Pulitzer Award Winners | |
| John Trudell | m | Notable Activists and Revolutionaries, Notable Actors and Entertainers, Notable Writers | |
| John Turner | m | Canadian Prime Ministers | |
| John Tyler | m | American Presidents | |
| John Tyree | m | Fictional Characters from Books | |
| John Updike | m | Notable Writers, Pulitzer Award Winners | |
| John Vane | m | Nobel Prize Winners | |
| John Hasbrouck Van Vleck | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| John von Neumann | m | Notable Philosophers and Thinkers | |
| John E. Walker | m | Nobel Prize Winners | |
| John Walker | m | Olympic Medalists | |
| John Wall | m | Notable Athletes | |
| John Montgomery Ward | m | Hall-of-Famers | |
| John William Waterhouse | m | Notable Artists | |
| John Wayne | m | Notable Actors and Entertainers, Oscar Award Winners | |
| John Williams | m | Olympic Medalists | |
| John Williams | m | Notable Musicians | |
| John Willoughby | m | Fictional Characters from Books | |
| John Winter | m | Olympic Medalists | |
| John Wooden | m | Hall-of-Famers, Notable Athletes | |
| John Woodruff | m | Olympic Medalists | |
| John Woodvine | m | Notable Actors and Entertainers | |
| John Worthing | m | Fictional Characters from Plays and Musicals | |
| John Yi Yun-il | m | Saints | |
| John Yossarian | m | Fictional Characters from Books | |
| Johnny | m | Fictional Characters from Song Titles | |
| Johnny | m | Fictional Characters from Song Titles | |
| Johnny | m | Fictional Characters from Song Titles | |
| Johnny | m | Fictional Characters from Song Titles | |
| Johnny | m | Fictional Characters from Song Titles | |
| Johnny | m | Fictional Characters from Song Titles | |
| Johnny | m | Fictional Characters from Song Titles | |
| Johnny | m | Fictional Characters from Song Titles | |
| Johnny | m | Fictional Characters from Song Titles | |
| Johnny Number 5 | m | Fictional Characters from Movies | |
| Johnny Bench | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Johnny Bower | m | Hall-of-Famers, Notable Athletes | |
| Johnny Bucyk | m | Hall-of-Famers, Notable Athletes | |
| Johnny Carson | m | Notable Actors and Entertainers | |
| Johnny Carter | m | Rock and Roll Hall-of-Famers | |
| Johnny Cash | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Johnny Depp | m | Notable Actors and Entertainers | |
| Johnny Evers | m | Hall-of-Famers, Notable Athletes | |
| Johnny Funches | m | Rock and Roll Hall-of-Famers | |
| Johnny Galecki | m | Notable Actors and Entertainers | |
| Johnny B. Goode | m | Fictional Characters from Song Titles | |
| Johnny Gray Jr. | m | Olympic Medalists | |
| Johnny Hallyday | m | Notable Musicians | |
| Johnny Hayes | m | Olympic Medalists | |
| Johnny Herrera | m | Notable Athletes | |
| Johnny Johnson | m | Fictional Characters from Plays and Musicals | |
| Johnny Jones | m | Fictional Characters from Plays and Musicals | |
| Johnny Logan | m | Eurovision Song Contest Winners, Notable Musicians | |
| Johnny Mandel | m | Notable Musicians | |
| Johnny "Blood" McNally | m | Hall-of-Famers | |
| Johnny Mize | m | Hall-of-Famers, Notable Athletes | |
| Johnny Moore | m | Rock and Roll Hall-of-Famers | |
| Johnny Morgan | m | Fictional Characters from Television | |
| Johnny Nash | m | Notable Musicians | |
| Johnny Pye | m | Fictional Characters from Plays and Musicals | |
| Johnny Rep | m | Notable Athletes | |
| Johnny Robinson | m | Hall-of-Famers | |
| Johnny "Handsome" Sedley | m | Fictional Characters from Movies | |
| Johnny Tremain | m | Fictional Characters from Books | |
| Johnny Unitas | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Johnny Weissmuller | m | Notable Actors and Entertainers, Notable Athletes, Olympic Medalists | |
| Joiada | m | Biblical Characters | |
| Joiada | m | Biblical Characters | |
| Joiakim | m | Biblical Characters | |
| Joie Ray | m | Olympic Medalists | |
| Jo Jo White | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Jokim | m | Biblical Characters | |
| Jokshan | m | Biblical Characters | |
| Joktan | m | Biblical Characters | |
| Jolanda Čeplak | f | Olympic Medalists | |
| Jolene | f | Fictional Characters from Song Titles | |
| Jolin Tsai | f | Notable Musicians | |
| Jommeke | m | Fictional Characters from Books | |
| Jón Magnússon | m | Icelandic Presidents and Prime Ministers | |
| Jón Þorláksson | m | Icelandic Presidents and Prime Ministers | |
| Jon Batiste | m | Grammy Award Winners, Notable Musicians | |
| Jon Bernthal | m | Notable Actors and Entertainers | |
| Jon Bon Jovi | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Jon Cryer | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Jon Favreau | m | Notable Actors and Entertainers, Notable Filmmakers | |
| Jon Hamm | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Jon Henricks | m | Olympic Medalists | |
| Jon Lord | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Jon Lovitz | m | Notable Actors and Entertainers | |
| Jon Sieben | m | Olympic Medalists | |
| Jon Snow | m | Fictional Characters from Books, Fictional Characters from Television | |
| Jon Stewart | m | Notable Actors and Entertainers | |
| Jon Tenney | m | Notable Actors and Entertainers | |
| Jon Voight | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Jon Wellner | m | Notable Actors and Entertainers | |
| Jonadab | m | Biblical Characters | |
| Jonadab | m | Biblical Characters | |
| Jonah | m | Biblical Characters | |
| Jonam | m | Biblical Characters | |
| Jonas "Basshunter" Altberg | m | Notable Musicians | |
| Jonas Černius | m | Lithuanian Presidents and Prime Ministers | |
| Jonathan | m | Biblical Characters | |
| Jonathan | m | Biblical Characters | |
| Jonathan | m | Biblical Characters | |
| Jonathan Brownlee | m | Olympic Medalists | |
| Jonathan Demme | m | Notable Filmmakers, Oscar Award Winners | |
| Jonathan Edwards | m | Olympic Medalists | |
| Jonathan Franzen | m | Notable Writers | |
| Jonathan Livingston Seagull | m | Fictional Characters from Books | |
| Jonathan Low | m | Fictional Characters from Song Titles | |
| Jonathan Rhys Meyers | m | Notable Actors and Entertainers | |
| Jonathan Ross | m | Notable Actors and Entertainers | |
| J. K. Simmons | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Jonathan Strange | m | Fictional Characters from Books | |
| Jonathan Turner | m | Fictional Characters from Television | |
| Jonathas | m | Fictional Characters from Books | |
| Jonder Martínez | m | Olympic Medalists | |
| Park Jong-ho | m | Olympic Medalists | |
| Lee Jong-wook | m | Olympic Medalists | |
| Joni Mitchell | f | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Jonny Evans | m | Notable Athletes | |
| Jonny Gray | m | Notable Athletes | |
| Jonny Greenwood | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Jonny May | m | Notable Athletes | |
| Jonny Lee Miller | m | Notable Actors and Entertainers | |
| Jonny Vang | m | Fictional Characters from Movies | |
| Jonny Williams | m | Notable Athletes | |
| Jonty Rhodes | m | Notable Athletes | |
| Park Joo-bong | m | Olympic Medalists | |
| Joop den Uyl | m | Dutch Prime Ministers | |
| Joop Rohner | m | Olympic Medalists | |
| Joop van den Ende | m | Notable Businesspeople | |
| Jopie Selbach | f | Olympic Medalists | |
| Jorah | m | Biblical Characters | |
| Jorai | m | Biblical Characters | |
| Joram | m | Biblical Characters | |
| Joram | m | Biblical Characters | |
| Jordan of Saxony | m | Saints | |
| Jordan Baker | f | Fictional Characters from Books | |
| Jordan Cavanaugh | f | Fictional Characters from Television | |
| Jordan Peele | m | Notable Actors and Entertainers, Notable Filmmakers | |
| Jordan Wethersby | m | Fictional Characters from Television | |
| Jördis Triebel | f | Notable Actors and Entertainers | |
| Jordyn Wieber | f | Olympic Medalists | |
| Jörg Hoffmann | m | Olympic Medalists | |
| Jorge Aguilera | m | Olympic Medalists | |
| Jorge Fernandes | m | Olympic Medalists | |
| Jorge Llopart Ribas | m | Olympic Medalists | |
| Jorge Sampaio | m | Portuguese Presidents and Prime Ministers | |
| Jorge Luis Valdés | m | Olympic Medalists | |
| Jorim | m | Biblical Characters | |
| Jorkoam | m | Biblical Characters | |
| Jorma Kinnunen | m | Olympic Medalists | |
| Jos van Kemenade | m | Notable Politicians and Statespeople | |
| Jos Verstappen | m | Notable Athletes | |
| Josaphat Chichkov | m | Saints | |
| Josaphata Hordashevska | f | Saints | |
| Jose | m | Hurricanes and Tropical Storms | |
| Jose | m | Hurricanes and Tropical Storms | |
| José Manuel Abascal | m | Olympic Medalists | |
| José Abreu | m | Most Valuable Players, Notable Athletes | |
| José Aparicio Sanz | m | Saints | |
| José María Aznar | m | Spanish Prime Ministers | |
| J. Balvín | m | Notable Musicians | |
| José Manuel Beirán | m | Olympic Medalists | |
| José Bonaparte | m | Spanish Kings and Queens | |
| José Canseco | m | Most Valuable Players, Notable Athletes | |
| José Raúl Capablanca | m | Notable Athletes | |
| José Ángel César | m | Olympic Medalists | |
| José Contreras | m | Olympic Medalists | |
| José da Conceição | m | Olympic Medalists | |
| José Luciano de Castro | m | Portuguese Presidents and Prime Ministers | |
| José Raúl Delgado | m | Olympic Medalists | |
| José Dias Ferreira | m | Portuguese Presidents and Prime Ministers | |
| José Diaz Sanjurjo | m | Saints | |
| José Echegaray | m | Nobel Prize Winners, Notable Writers | |
| José Estrada González | m | Olympic Medalists | |
| José Evaristo Uriburu | m | Argentine Presidents | |
| José Feliciano | m | Grammy Award Winners, Notable Musicians | |
| José Fenollosa Alcayna | m | Saints | |
| José Fernández de Ventosa | m | Saints | |
| José Ferrer | m | Notable Actors and Entertainers, Oscar Award Winners | |
| José Ferrer Esteve | m | Saints | |
| José Isabel Flores Varela | m | Saints | |
| José Giral | m | Spanish Prime Ministers | |
| José Linhares | m | Brazilian Presidents | |
| José Luis Llorente | m | Olympic Medalists | |
| José López Domínguez | m | Spanish Prime Ministers | |
| José Méndez | m | Hall-of-Famers | |
| José Nasazzi | m | Notable Athletes | |
| José Pamplona | m | Olympic Medalists | |
| José Pedraza Zúñiga | m | Olympic Medalists | |
| José Perpina Nacher | m | Saints | |
| José Posada Herrera | m | Spanish Prime Ministers | |
| José Ramos-Horta | m | Nobel Prize Winners | |
| José Maria Robles Hurtado | m | Saints | |
| José Luis Rodríguez Zapatero | m | Spanish Prime Ministers | |
| José María Rubio y Peralta | m | Saints | |
| José Ruiz Bruixola | m | Saints | |
| José Sala Pico | m | Saints | |
| José Sánchez del Río | m | Saints | |
| José Sánchez Guerra | m | Spanish Prime Ministers | |
| José Saramago | m | Nobel Prize Winners, Notable Writers | |
| José Sarney | m | Brazilian Presidents | |
| José Travassos Valdez | m | Portuguese Presidents and Prime Ministers | |
| Josech | m | Biblical Characters | |
| Josef Emanuel of Liechtenstein | m | Other Royalty | |
| Josef K. | m | Fictional Characters from Books | |
| Josef Hauser | m | Olympic Medalists | |
| Josef Masopust | m | Notable Athletes | |
| Josef Odložil | m | Olympic Medalists | |
| Josef Ludwig von Armansperg | m | Greek Prime Ministers | |
| Josefa de San Juan Ruano García | f | Saints | |
| Josefa Naval Girbés | f | Saints | |
| Josemaría Escrivá | m | Saints | |
| Josep Maria Abarca | m | Olympic Medalists | |
| Josep Manyanet i Vives | m | Saints | |
| Josep Maria Margall | m | Olympic Medalists | |
| Josep Picó Lladó | m | Olympic Medalists | |
| Josep Tàpies Sirvant | m | Saints | |
| Joseph | m | Biblical Characters | |
| Joseph | m | Biblical Characters, Saints | |
| Joseph | m | Shakespearian Characters | |
| Joseph Canh Luong Hoang | m | Saints | |
| Joseph Hien Quang Do | m | Saints | |
| Joseph I | m | Austrian Dukes and Emperors, Bohemian Kings, German Kings and Holy Roman Emperors, Hungarian Kings and Queens | |
| Joseph Khang Duy Nguyen | m | Saints | |
| Joseph of Alaverdi | m | Saints | |
| Joseph of Arimathea | m | Biblical Characters, Saints | |
| Joseph Thi Dang Le | m | Saints | |
| Joseph Vien Dinh Dang | m | Saints | |
| Joseph Bertrand | m | Olympic Medalists | |
| Joseph Bonnel | m | Notable Athletes | |
| Joseph Brennan | m | Hall-of-Famers | |
| Joseph Brodsky | m | Nobel Prize Winners, Notable Writers | |
| Joseph "Geezer" Butler | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Joseph Carr | m | Hall-of-Famers | |
| Joseph-Marie Cassant | m | Saints | |
| Joseph Cludts | m | Olympic Medalists | |
| Joseph Cook | m | Australian Prime Ministers | |
| Joseph De Combe | m | Olympic Medalists | |
| Joseph Dreher | m | Olympic Medalists | |
| Joseph Forshaw | m | Olympic Medalists | |
| Joseph Gérard | m | Saints | |
| Joseph Goebbels | m | German Chancellors and Presidents, Notable Evildoers | |
| Joseph Gordon-Levitt | m | Notable Actors and Entertainers | |
| Joseph Gribble | m | Fictional Characters from Television | |
| Joseph Haydn | m | Notable Musicians | |
| Joseph Hermans | m | Olympic Medalists | |
| Joseph "Dusty" Hill | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Joseph Khang | m | Saints | |
| Joseph Lamothe | m | Haitian Presidents | |
| Joseph Lyons | m | Australian Prime Ministers | |
| Joseph L. Mankiewicz | m | Notable Filmmakers, Oscar Award Winners | |
| Joseph Marchand | m | Saints | |
| Joseph Murray | m | Nobel Prize Winners | |
| Joseph Pletinckx | m | Olympic Medalists | |
| Joseph Pulitzer | m | Notable Businesspeople, Notable Journalists, Notable Politicians and Statespeople | |
| Joseph Rotblat | m | Nobel Prize Winners | |
| Joseph Schildkraut | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Joseph "Run" Simmons | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Joseph Stadler | m | Olympic Medalists | |
| Joseph Stalin | m | Notable Evildoers, Other Leaders | |
| Joseph Stiglitz | m | Nobel Prize Winners, Notable Philosophers and Thinkers | |
| Joseph Hooton Taylor Jr. | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| J. J. Thomson | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| J. M. W. Turner | m | Notable Artists | |
| Joseph Peter Uyen | m | Saints | |
| Joseph Wirth | m | German Chancellors and Presidents | |
| Joseph Wright of Derby | m | Notable Artists | |
| Joséphine of Belgium | f | Other Royalty | |
| Josephine of Denmark | f | Other Royalty | |
| Josephine Baker | f | Notable Actors and Entertainers, Notable Musicians | |
| Josephine Bakhita | f | Saints | |
| Josephine Hull | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Josephine Johnson | f | Pulitzer Award Winners | |
| Josephine McKim | f | Olympic Medalists | |
| Josephine Sticker | f | Olympic Medalists | |
| Josephus | m | Notable Philosophers and Thinkers | |
| Josh Bowman | m | Notable Actors and Entertainers | |
| Josh Charles | m | Notable Actors and Entertainers | |
| Josh Culbreath | m | Olympic Medalists | |
| Josh Dallas | m | Notable Actors and Entertainers | |
| Josh Davis | m | Olympic Medalists | |
| Josh Donaldson | m | Most Valuable Players, Notable Athletes | |
| Josh Duhamel | m | Notable Actors and Entertainers | |
| Josh Gibson | m | Hall-of-Famers, Notable Athletes | |
| Josh Greene | m | Fictional Characters from Television | |
| Josh Hamilton | m | Most Valuable Players, Notable Athletes | |
| Josh Hartnett | m | Notable Actors and Entertainers | |
| Josh Hopkins | m | Notable Actors and Entertainers | |
| Josh Hutcherson | m | Notable Actors and Entertainers | |
| Josh Magennis | m | Notable Athletes | |
| Josh Malerman | m | Notable Writers | |
| Josh Matthews | m | Fictional Characters from Television | |
| Josh O'Connor | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Josh Stewart | m | Notable Actors and Entertainers | |
| Josh Swenson | m | Fictional Characters from Books | |
| Josh Watson | m | Olympic Medalists | |
| Joshah | m | Biblical Characters | |
| Joshaphat | m | Biblical Characters | |
| Joshaphat | m | Biblical Characters | |
| Joshaviah | m | Biblical Characters | |
| Joshbekashah | m | Biblical Characters | |
| Joshibiah | m | Biblical Characters | |
| Joshua | m | Biblical Characters | |
| Joshua Mance | m | Olympic Medalists | |
| Joshua Reynolds | m | Notable Artists | |
| Josiah | m | Biblical Characters, Israelite and Judean Kings | |
| Josiah | m | Biblical Characters | |
| Josiah Bounderby | m | Fictional Characters from Books | |
| Josiah McCracken | m | Olympic Medalists | |
| Josipa Lisac | f | Notable Musicians | |
| Josiphiah | m | Biblical Characters | |
| Joško Kreković | m | Olympic Medalists | |
| Joslyn Hoyte-Smith | f | Olympic Medalists | |
| Josquin des Prez | m | Notable Musicians | |
| Joss Carter | f | Fictional Characters from Television | |
| Joss House | f | Fictional Characters from Television | |
| Joss Whedon | m | Notable Filmmakers | |
| Kim Jo-sun | f | Olympic Medalists | |
| Josy Barthel | m | Olympic Medalists | |
| Jotham | m | Biblical Characters | |
| Jotham | m | Biblical Characters, Israelite and Judean Kings | |
| Jotham | m | Biblical Characters | |
| Jovan Nenad | m | Serbian Kings, Tsars and Princes | |
| Joy Behar | f | Notable Actors and Entertainers | |
| Joy Lass | f | Fictional Characters from Movies, Fictional Characters from Television | |
| Joyce | f | Hurricanes and Tropical Storms | |
| Joyce | f | Hurricanes and Tropical Storms | |
| Joyce Cooper | f | Olympic Medalists | |
| Joyce King | f | Olympic Medalists | |
| Joyce Carol Oates | f | Notable Writers | |
| Józef Bilczewski | m | Saints | |
| Józef Cyrankiewicz | m | Polish Presidents and Prime Ministers | |
| Józef Sebastian Pelczar | m | Saints | |
| Józef Piłsudski | m | Polish Presidents and Prime Ministers | |
| Jozef Pribilinec | m | Olympic Medalists | |
| Józef Szmidt | m | Olympic Medalists | |
| Joseph II | m | Austrian Dukes and Emperors, Bohemian Kings, German Kings and Holy Roman Emperors, Hungarian Kings and Queens | |
| József Csermák | m | Olympic Medalists | |
| József Kovács | m | Olympic Medalists | |
| József Munk | m | Olympic Medalists | |
| József Nagy | m | Olympic Medalists | |
| József Szabó | m | Olympic Medalists | |
| József Vértesy | m | Olympic Medalists | |
| Jozy Altidore | m | Notable Athletes | |
| Don Juan | m | Fictional Characters from Books, Fictional Characters from Plays and Musicals, Fictional Characters from Traditional Tales | |
| Juan | m | Hurricanes and Tropical Storms | |
| Juan Carlos I | m | Spanish Kings and Queens | |
| Juan de Ribera | m | Saints | |
| Juan I | m | Spanish Kings and Queens | |
| Juan I | m | Spanish Kings and Queens | |
| Juan II | m | Spanish Kings and Queens | |
| Juan II | m | Spanish Kings and Queens | |
| Juan Botella Medina | m | Olympic Medalists | |
| Juan Antonio Corbalán | m | Olympic Medalists | |
| Juan Darién | m | Fictional Characters from Plays and Musicals | |
| Juan Domingo de la Cruz | m | Olympic Medalists | |
| Juan Domecq Fortuondo | m | Olympic Medalists | |
| Juan Sebastián Elcano | m | Notable Explorers and Adventurers | |
| Juan Manuel Fangio | m | Notable Athletes | |
| Juan Bautista Ferreres Boluda | m | Saints | |
| Juan González | m | Most Valuable Players | |
| Juan Pedro Gutiérrez | m | Olympic Medalists | |
| Juan Carlos Holgado Romero | m | Olympic Medalists | |
| Juan Ramón Jiménez | m | Nobel Prize Winners, Notable Writers | |
| Juan Marichal | m | Hall-of-Famers | |
| Juan Morales | m | Olympic Medalists | |
| Juan Negrín | m | Spanish Prime Ministers | |
| Juan Padilla | m | Olympic Medalists | |
| Juan Carlos Perez | m | Olympic Medalists | |
| Juan Ponce de León | m | Notable Explorers and Adventurers | |
| Juan Roca Brunet | m | Olympic Medalists | |
| Juan Antonio San Epifanio | m | Olympic Medalists | |
| Juan Alberto Schiaffino | m | Notable Athletes | |
| Juan Carlos Zabala | m | Olympic Medalists | |
| Juan Nepomuceno Zegrí y Moreno | m | Saints | |
| Juana the Mad | f | Spanish Kings and Queens | |
| Juana María Condesa Lluch | f | Saints | |
| Juanes | m | Notable Musicians | |
| Juanita Solis | f | Fictional Characters from Television | |
| Zhang Juanjuan | f | Olympic Medalists | |
| Juanma López Iturriaga | m | Olympic Medalists | |
| Jubal | m | Biblical Characters | |
| Jud Wilson | m | Hall-of-Famers | |
| Judah | m | Biblical Characters | |
| Judalon de Bornay | f | Fictional Characters from Books, Fictional Characters from Movies | |
| Judas | m | Biblical Characters | |
| Judas | m | Biblical Characters | |
| Judas Barsabas | m | Biblical Characters | |
| Judas Iscariot | m | Biblical Characters | |
| Judas Thaddaeus | m | Biblical Characters, Saints | |
| Judd Green | m | Notable Actors and Entertainers | |
| Judd Hirsch | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Jude | ? | Fictional Characters from Song Titles | |
| Jude | m | Biblical Characters | |
| Jude Fawley | m | Fictional Characters from Books | |
| Jude Law | m | Notable Actors and Entertainers | |
| Jude Martin | f | Fictional Characters from Television | |
| Judi Brown | f | Olympic Medalists | |
| Judi Dench | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Judit Temes | f | Olympic Medalists | |
| Judith | f | Fictional Characters from Song Titles | |
| Judith Joy Davies | f | Olympic Medalists | |
| Judith Draper | f | Fictional Characters from Television | |
| Judy | f | Fictional Characters from Song Titles | |
| Judy | f | Fictional Characters from Song Titles | |
| Judy | f | Fictional Characters from Song Titles | |
| Judy Amoore | f | Olympic Medalists | |
| Judy Blume | f | Notable Writers | |
| Judy Brooks | f | Fictional Characters from Television | |
| Judy Foster | f | Fictional Characters from Movies | |
| Judy Garland | f | Grammy Award Winners, Notable Actors and Entertainers, Notable Musicians | |
| Judy Geller | f | Fictional Characters from Television | |
| Judy Grinham | f | Olympic Medalists | |
| Judy Holliday | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Judy Johnson | m | Hall-of-Famers | |
| Judy Playfair | f | Olympic Medalists | |
| Judy Winslow | f | Fictional Characters from Television | |
| Juho Kusti Paasikivi | m | Finnish Presidents and Prime Ministers | |
| Juho Sunila | m | Finnish Presidents and Prime Ministers | |
| Juho Vennola | m | Finnish Presidents and Prime Ministers | |
| Jukka Rangell | m | Finnish Presidents and Prime Ministers | |
| Jules Bordet | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Jules Deelder | m | Notable Writers | |
| Jules Grévy | m | French Presidents and Prime Ministers | |
| Jules Massenet | m | Notable Musicians | |
| Jules van Zuylen van Nijevelt | m | Dutch Prime Ministers | |
| Jules Verbecke | m | Olympic Medalists | |
| Jules Winnfield | m | Fictional Characters from Movies | |
| Julia | f | Hurricanes and Tropical Storms | |
| Julia | f | Fictional Characters from Song Titles | |
| Julia | f | Shakespearian Characters | |
| Julia of Merida | f | Saints | |
| Julia Baker | f | Fictional Characters from Television | |
| Julia Gillard | f | Australian Prime Ministers | |
| Julia Grant | f | American First Ladies | |
| Julia Levin | f | Fictional Characters from Movies | |
| Julia Louis-Dreyfus | f | Emmy Award Winners, Notable Actors and Entertainers | |
| Julia McNamara | f | Fictional Characters from Television | |
| Julia Richter | f | Olympic Medalists | |
| Julia Roberts | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Julia Tyler | f | American First Ladies | |
| Julian Assange | m | Notable Activists and Revolutionaries, Notable Journalists | |
| Julian Nowak | m | Polish Presidents and Prime Ministers | |
| Julian Schwinger | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Juliana of Mount Cornillon | f | Saints | |
| Juliana of the Netherlands | f | Other Royalty | |
| Julianna Margulies | f | Emmy Award Winners, Notable Actors and Entertainers | |
| Julianne Moore | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Julie | f | Fictional Characters from Books | |
| Julie | f | Fictional Characters from Books | |
| Julie Christie | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Julie Cooper | f | Fictional Characters from Television | |
| Julie Emrick | f | Fictional Characters from Television | |
| Julie "Finn" Finlay | f | Fictional Characters from Television | |
| Julie Gonzalo | f | Notable Actors and Entertainers | |
| Julie Harris | f | Notable Actors and Entertainers | |
| Julie March | f | Fictional Characters from Television | |
| Julie McDonald | f | Olympic Medalists | |
| Julie Swail | f | Olympic Medalists | |
| Julien Brule | m | Olympic Medalists | |
| Juliene Simpson | f | Olympic Medalists | |
| Juliet | f | Shakespearian Characters | |
| Juliet | f | Fictional Characters from Plays and Musicals, Shakespearian Characters | |
| Julietta | f | Saints | |
| Juliette Binoche | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Juliette Vérolot | f | Saints | |
| Julio | m | Fictional Characters from Song Titles | |
| Júlio César | m | Notable Athletes | |
| Julio Junyer Padern | m | Saints | |
| Julius I | m | Bishops of Rome and the Popes, Saints | |
| Julius II | m | Bishops of Rome and the Popes | |
| Julius III | m | Bishops of Rome and the Popes | |
| Julius Nepos | m | Roman and Byzantine Emperors | |
| Julius of Dorostorum | m | Saints | |
| Majorian | m | Roman and Byzantine Emperors | |
| Julius Cain | m | Fictional Characters from Television | |
| Julius Erving | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| J. Robert Oppenheimer | m | Notable Scientists and Inventors | |
| Julius Saaristo | m | Olympic Medalists | |
| Julius Vogel | m | New Zealand Prime Ministers | |
| Julius Wagner-Jauregg | m | Nobel Prize Winners | |
| Dai Jun | m | Olympic Medalists | |
| Liu Jun | f | Olympic Medalists | |
| Wang Jun | f | Olympic Medalists | |
| Zhang Jun | m | Olympic Medalists | |
| June Foulds | f | Olympic Medalists | |
| June Maston | f | Olympic Medalists | |
| June Miller | f | Other Notables | |
| June Squibb | f | Notable Actors and Entertainers | |
| June Whitfield | f | Notable Actors and Entertainers | |
| Sung Jung-a | f | Olympic Medalists | |
| Bong Jung-keun | m | Olympic Medalists | |
| Jungkook | m | Notable Musicians | |
| Junia | f | Biblical Characters | |
| Junior Brown | m | Fictional Characters from Books | |
| Junius Brutus | m | Shakespearian Characters | |
| Junko Onishi | f | Olympic Medalists | |
| Juno | f | Characters in Roman Mythology, Shakespearian Characters | |
| Juno MacGuff | f | Fictional Characters from Movies | |
| Juno Stover-Irwin | f | Olympic Medalists | |
| Junot Díaz | m | Notable Writers, Pulitzer Award Winners | |
| Juozas Maniušis | m | Lithuanian Presidents and Prime Ministers | |
| Jupiter | m | Biblical Characters, Characters in Roman Mythology, Shakespearian Characters | |
| Jupp Heynckes | m | Notable Athletes | |
| Jure Pelivan | m | Other Leaders | |
| Jure Zdovc | m | Olympic Medalists | |
| Jurgis Matulaitis-Matulevičius | m | Saints | |
| Jüri Tamm | m | Olympic Medalists | |
| Jüri Tarmak | m | Olympic Medalists | |
| Juris Kalniņš | m | Olympic Medalists | |
| Juris Silovs | m | Olympic Medalists | |
| Juscelino Kubitschek | m | Brazilian Presidents | |
| Jushab-Hesed | m | Biblical Characters | |
| Jussie Smollett | m | Notable Actors and Entertainers | |
| Just Fontaine | m | Notable Athletes | |
| Justa | f | Saints | |
| Justin Martyr | m | Saints | |
| Justin Bieber | m | Notable Musicians | |
| Justin Finch-Fletchley | m | Harry Potter Characters | |
| Justin Gatlin | m | Notable Athletes, Olympic Medalists | |
| Justina | f | Saints | |
| Justinas Lagunavičius | m | Olympic Medalists | |
| Justinian II | m | Roman and Byzantine Emperors | |
| Justinian the Great | m | Roman and Byzantine Emperors, Saints | |
| Justino Orona Madrigal | m | Saints | |
| Justinus van der Brugghen | m | Dutch Prime Ministers | |
| Jutta of Kulmsee | f | Saints | |
| Jutta Heine | f | Olympic Medalists | |
| Jutta Weber | f | Olympic Medalists | |
| Juturna | f | Characters in Roman Mythology | |
| Juvenal | m | Notable Writers | |
| Jyrki Katainen | m | Finnish Presidents and Prime Ministers | |
| K. C. Jones | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Kaarel Eenpalu | m | Estonian Presidents and Prime Ministers | |
| Kaarlo Castrén | m | Finnish Presidents and Prime Ministers | |
| Kaarlo Juho Ståhlberg | m | Finnish Presidents and Prime Ministers | |
| Jin Kab-yong | m | Olympic Medalists | |
| Kacey Musgraves | f | Grammy Award Winners | |
| Kacy Corbin | f | Fictional Characters from Television | |
| Kadmiel | m | Biblical Characters | |
| Kadmiel | m | Biblical Characters | |
| Qin Kai | m | Olympic Medalists | |
| Kai Siegbahn | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Kaika | m | Japanese Emperors, Other Mythological Characters | |
| Kailash Satyarthi | m | Nobel Prize Winners, Notable Activists and Revolutionaries | |
| Kaitlin Cooper | f | Fictional Characters from Television | |
| Kalervo Toivonen | m | Olympic Medalists | |
| Kalevi Sorsa | m | Finnish Presidents and Prime Ministers | |
| Kali | f | Characters in Hindu Mythology | |
| Kali Meehan | m | Notable Athletes | |
| Kaliman Asen II | m | Bulgarian Kings and Tsars | |
| Kaliopi | f | Notable Musicians | |
| Kallai | m | Biblical Characters | |
| Kálmán | m | Hungarian Kings and Queens | |
| Kálmán Ihász | m | Notable Athletes, Olympic Medalists | |
| Kálmán Markovits | m | Olympic Medalists | |
| Kaloyan | m | Bulgarian Kings and Tsars | |
| Kam Chancellor | m | Notable Athletes | |
| Kam Lee | m | Notable Musicians | |
| Kamen Vitchev | m | Saints | |
| Kami Craig | f | Olympic Medalists | |
| Kamie Ethridge | f | Olympic Medalists | |
| Kamil Stoch | m | Notable Athletes, Olympic Medalists | |
| Ping of Han | m | Chinese Emperors | |
| Kanaalaq | f | Fictional Characters from Movies | |
| Ichijo | m | Japanese Emperors | |
| Kany García | f | Notable Musicians | |
| Kaori Takahashi | f | Olympic Medalists | |
| Karch Kiraly | m | Notable Athletes, Olympic Medalists | |
| Kardam | m | Bulgarian Kings and Tsars | |
| Kåre Willoch | m | Norwegian Prime Ministers | |
| Kareah | m | Biblical Characters | |
| Kareem Abdul-Jabbar | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Karl IV | m | Bohemian Kings, German Kings and Holy Roman Emperors | |
| Karel Gott | m | Notable Musicians | |
| Karen | f | Hurricanes and Tropical Storms | |
| Karen Clark | f | Olympic Medalists | |
| Karen Harup | f | Olympic Medalists | |
| Karen Memery | f | Fictional Characters from Books | |
| Karen Patricia Moe | f | Olympic Medalists | |
| Karen Sammler | f | Fictional Characters from Television | |
| Karin Balzer | f | Olympic Medalists | |
| Karin Guthke | f | Olympic Medalists | |
| Karl | m | Hurricanes and Tropical Storms | |
| Karl | m | Hurricanes and Tropical Storms | |
| Karl I | m | Austrian Dukes and Emperors, Bohemian Kings, Hungarian Kings and Queens, Saints | |
| Karl I (or VII) | m | Swedish Kings and Queens | |
| Karl II (or VIII) | m | Norwegian Kings and Queens, Swedish Kings and Queens | |
| Karl III the Fat | m | Frankish and French Kings, German Kings and Holy Roman Emperors | |
| Karl Ludwig of Liechtenstein | m | Other Royalty | |
| Karl V | m | Austrian Dukes and Emperors, German Kings and Holy Roman Emperors, Spanish Kings and Queens | |
| Karl VII Albrecht | m | Bohemian Kings, German Kings and Holy Roman Emperors | |
| Karl XIII | m | Norwegian Kings and Queens, Swedish Kings and Queens | |
| Karl XV | m | Norwegian Kings and Queens, Swedish Kings and Queens | |
| Karl Ferdinand Braun | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Karl-August Fagerholm | m | Finnish Presidents and Prime Ministers | |
| Karl Adolph Gjellerup | m | Nobel Prize Winners, Notable Writers | |
| Karl-Friedrich Haas | m | Olympic Medalists | |
| Karl Hein | m | Olympic Medalists | |
| Karl Landsteiner | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Karl Leisner | m | Saints | |
| Karl Luther | m | Olympic Medalists | |
| Karl Malden | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Karl Malmström | m | Olympic Medalists | |
| Karl Malone | m | Hall-of-Famers, Most Valuable Players, Notable Athletes, Olympic Medalists | |
| Karl Marx | m | Notable Philosophers and Thinkers | |
| K. Alex Müller | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Karl Popper | m | Notable Philosophers and Thinkers | |
| Karl-Heinz Rummenigge | m | Notable Athletes | |
| Karl Barry Sharpless | m | Nobel Prize Winners | |
| Karl Urban | m | Notable Actors and Entertainers | |
| Karl Verner | m | Notable Philosophers and Thinkers | |
| Karl von Frisch | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Karl Warner | m | Olympic Medalists | |
| Karl Ziegler | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Karlheinz Stockhausen | m | Notable Musicians | |
| Karlijn Tromp | f | Fictional Characters from Books | |
| Karolina Gerhardinger | f | Saints | |
| Karl VI | m | Austrian Dukes and Emperors, Bohemian Kings, German Kings and Holy Roman Emperors, Hungarian Kings and Queens | |
| Károly I | m | Hungarian Kings and Queens | |
| Károly II the Small | m | Hungarian Kings and Queens | |
| Károly Bartha | m | Olympic Medalists | |
| Károly Güttler | m | Olympic Medalists | |
| Kary Mullis | m | Nobel Prize Winners | |
| Kasie Hines | f | Fictional Characters from Television | |
| Kaspar Stanggassinger | m | Saints | |
| Kat Dennings | f | Notable Actors and Entertainers | |
| Kat Graham | f | Notable Actors and Entertainers, Notable Musicians | |
| Go-Yozei | m | Japanese Emperors | |
| Katalin Szőke | f | Olympic Medalists | |
| Katarina of Sweden | f | Saints | |
| Katarina Witt | f | Notable Athletes, Olympic Medalists | |
| Kate | f | Hurricanes and Tropical Storms | |
| Kate Svetlana | f | Fictional Characters from Books | |
| Kate Allen | f | Olympic Medalists | |
| Kate Austen | f | Fictional Characters from Television | |
| Kate Beckinsale | f | Notable Actors and Entertainers | |
| Kate Bosworth | f | Notable Actors and Entertainers | |
| Kate Burton | f | Notable Actors and Entertainers | |
| Kate Bush | f | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Kate Carson | f | Fictional Characters from Movies | |
| Kate Grenville | f | Notable Writers | |
| Kate Harcourt | f | Notable Actors and Entertainers | |
| Kate Manfredi | f | Fictional Characters from Television | |
| Kate Morgan | f | Fictional Characters from Television | |
| Kate Moss | f | Notable Actors and Entertainers | |
| Kate Mulgrew | f | Notable Actors and Entertainers | |
| Kate Murphy | f | Fictional Characters from Television | |
| Kate Nickleby | f | Fictional Characters from Books | |
| Kate Percy | f | Shakespearian Characters | |
| Kate Richardson-Walsh | f | Olympic Medalists | |
| Kate Roberts | f | Fictional Characters from Television | |
| Kate Saunders | f | Notable Writers | |
| Kate Schmidt | f | Olympic Medalists | |
| Kate Spade | f | Notable Artists, Notable Businesspeople | |
| Kate Todd | f | Fictional Characters from Television | |
| Kate Upton | f | Notable Actors and Entertainers | |
| Kate Walsh | f | Notable Actors and Entertainers | |
| Kate Winslet | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Katee Sackhoff | f | Notable Actors and Entertainers | |
| Kateri Tekakwitha | f | Saints | |
| Kateryna Serdyuk | f | Olympic Medalists | |
| Katey Sagal | f | Notable Actors and Entertainers | |
| Katharina Blum | m | Fictional Characters from Books | |
| Katharine | f | Shakespearian Characters | |
| Katharine Drexel | f | Saints | |
| Katharine Hepburn | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Käthe Köhler | f | Olympic Medalists | |
| Käthe Krauss | f | Olympic Medalists | |
| Katherina Minola | f | Fictional Characters from Plays and Musicals, Shakespearian Characters | |
| Katherine | f | Fictional Characters from Books | |
| Katherine Applegate | f | Notable Writers | |
| Katherine Anne Porter | f | Notable Writers, Pulitzer Award Winners | |
| Katherine Rawls | f | Olympic Medalists | |
| Katherine Swynford | f | Other Royalty | |
| Kathie Lee Gifford | f | Notable Actors and Entertainers | |
| Kathleen MacLeod | f | Olympic Medalists | |
| Kathleen Russell | f | Olympic Medalists | |
| Kathleen E. Woodiwiss | f | Notable Writers | |
| Kathryn Bigelow | f | Notable Filmmakers, Oscar Award Winners | |
| Kathy Baker | f | Emmy Award Winners, Notable Actors and Entertainers | |
| Kathy Bates | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Kathy Ellis | f | Olympic Medalists | |
| Kathy Hammond | f | Olympic Medalists | |
| Kathy Johnson | f | Olympic Medalists | |
| Kathy McMillan | f | Olympic Medalists | |
| Kathy Reichs | f | Notable Scientists and Inventors, Notable Writers | |
| Kathy Smallwood-Cook | f | Olympic Medalists | |
| Katia | f | Hurricanes and Tropical Storms | |
| Katia | f | Hurricanes and Tropical Storms | |
| Katie Bell | f | Harry Potter Characters | |
| Katie Boyle | f | Notable Actors and Entertainers | |
| Katie Brown | f | Fictional Characters from Movies | |
| Katie Couric | f | Notable Actors and Entertainers, Notable Journalists | |
| Katie Hoff | f | Olympic Medalists | |
| Katie Holmes | f | Notable Actors and Entertainers | |
| Katie Ledecky | f | Notable Athletes, Olympic Medalists | |
| Katie Logan | f | Fictional Characters from Television | |
| Katie Melua | f | Notable Musicians | |
| Katie Smith | f | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Katina Paxinou | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Katja Lehto | f | Olympic Medalists | |
| Katja Riipi | f | Olympic Medalists | |
| Katja Schuurman | f | Notable Actors and Entertainers | |
| Katrin Dörre-Heinig | f | Olympic Medalists | |
| Katrina | f | Hurricanes and Tropical Storms | |
| Katrina | f | Hurricanes and Tropical Storms | |
| Katrina McClain | f | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Katrine Lunde | f | Notable Athletes, Olympic Medalists | |
| Katsumi Watanabe | m | Olympic Medalists | |
| Katy Carr | f | Fictional Characters from Books | |
| Katy Perry | f | Notable Musicians | |
| Katy Steding | f | Olympic Medalists | |
| Katya Derevko | f | Fictional Characters from Television | |
| Kavadh II | m | Persian and Iranian Kings and Queens | |
| Kay | f | Fictional Characters from Plays and Musicals | |
| Kay Yow | f | Hall-of-Famers | |
| Kaye Hall | f | Olympic Medalists | |
| Kayla Huntington Scavo | f | Fictional Characters from Television | |
| Kayleigh | f | Fictional Characters from Song Titles | |
| Kayumars | m | Indian Sultans and Emperors | |
| Kazimierz I the Restorer | m | Polish High Dukes and Kings | |
| Kazimierz II the Just | m | Polish High Dukes and Kings | |
| Kazimierz III the Great | m | Polish High Dukes and Kings | |
| Kazimierz IV | m | Polish High Dukes and Kings | |
| Kazimierz of Poland | m | Saints | |
| Kazimierz Bartel | m | Polish Presidents and Prime Ministers | |
| Kazimierz Sabbat | m | Polish Presidents and Prime Ministers | |
| Kazimierz Świtalski | m | Polish Presidents and Prime Ministers | |
| Kazimierz Zimny | m | Olympic Medalists | |
| Kazimir Malevich | m | Notable Artists | |
| Kazuo Ishiguro | m | Nobel Prize Winners, Notable Writers | |
| Kazys Grinius | m | Lithuanian Presidents and Prime Ministers | |
| Kazys Petkevičius | m | Olympic Medalists | |
| Keala O'Sullivan | f | Olympic Medalists | |
| Kedar | m | Biblical Characters | |
| Kedemah | m | Biblical Characters | |
| Kedorlaomer | m | Biblical Characters | |
| Sohn Kee-chung | m | Olympic Medalists | |
| Keeley Hawes | f | Notable Actors and Entertainers | |
| Keena Rothhammer | f | Olympic Medalists | |
| Keenen Ivory Wayans | m | Notable Actors and Entertainers, Notable Filmmakers | |
| Kees Broekman | m | Olympic Medalists | |
| Kees Kist | m | Notable Athletes | |
| Kees van der Staaij | m | Notable Politicians and Statespeople | |
| Kees van Dijk | m | Notable Politicians and Statespeople | |
| Kees van Dongen | m | Notable Artists | |
| Kees van Kooten | m | Notable Actors and Entertainers, Notable Writers | |
| Kees Verkerk | m | Olympic Medalists | |
| Kees Wijdekop | m | Olympic Medalists | |
| Keijo Liinamaa | m | Finnish Presidents and Prime Ministers | |
| Keiko | m | Japanese Emperors, Other Mythological Characters | |
| Keilah | m | Biblical Characters | |
| Keith | m | Hurricanes and Tropical Storms | |
| Keith Bennett | m | Fictional Characters from Television | |
| Keith Carter | m | Olympic Medalists | |
| Keith Charles | m | Fictional Characters from Television | |
| Keith Flint | m | Notable Musicians | |
| Keith Gardner | m | Olympic Medalists | |
| Keith Hernandez | m | Most Valuable Players | |
| Keith Mars | m | Fictional Characters from Television | |
| Keith Moon | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Keith Richards | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Kekoa Shaw | m | Fictional Characters from Movies | |
| Kelaiah | m | Biblical Characters | |
| Kelal | m | Biblical Characters | |
| Kellie Bright | f | Notable Actors and Entertainers | |
| Kellie Wells | f | Olympic Medalists | |
| Kelly | f | Fictional Characters from Movies | |
| Kelly Bundy | f | Fictional Characters from Television | |
| Kelly Clarkson | f | Notable Musicians | |
| Kelly Holmes | f | Olympic Medalists | |
| Kelly Kapowski | f | Fictional Characters from Television | |
| Kelly Anne McCormick | f | Olympic Medalists | |
| Kelly Ripa | f | Notable Actors and Entertainers | |
| Kelsey Grammer | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Kelub | m | Biblical Characters | |
| Kelub | m | Biblical Characters | |
| Keluhi | m | Biblical Characters | |
| Kelzang Gyatso | m | Other Religious Leaders | |
| Ken Anderson | m | Most Valuable Players | |
| Ken Berry | m | Notable Actors and Entertainers | |
| Ken Boyer | m | Most Valuable Players | |
| Ken Caminiti | m | Most Valuable Players, Notable Athletes | |
| Ken Carpenter | m | Olympic Medalists | |
| Ken Cosgrove | m | Fictional Characters from Television | |
| Ken Dodd | m | Notable Actors and Entertainers | |
| Ken Doherty | m | Olympic Medalists | |
| Ken Dryden | m | Hall-of-Famers, Notable Athletes | |
| Ken Flach | m | Notable Athletes, Olympic Medalists | |
| Ken Griffey Jr. | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Ken Houston | m | Hall-of-Famers | |
| Ken Huszagh | m | Olympic Medalists | |
| Ken "Hutch" Hutchinson | m | Fictional Characters from Television | |
| Ken Jennings | m | Notable Actors and Entertainers | |
| Ken Jeong | m | Notable Actors and Entertainers | |
| Ken Jones | m | Olympic Medalists | |
| Ken Leung | m | Notable Actors and Entertainers | |
| Ken Matthews | m | Olympic Medalists | |
| Ken McArthur | m | Olympic Medalists | |
| Ken Owens | m | Notable Athletes | |
| Ken Reardon | m | Hall-of-Famers | |
| Ken Rosewall | m | Notable Athletes | |
| Ken Spain | m | Olympic Medalists | |
| Ken Stabler | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Ken Strong | m | Hall-of-Famers | |
| Ken Thompson | m | Notable Scientists and Inventors | |
| Ken Walsh | m | Olympic Medalists | |
| Ken Wiesner | m | Olympic Medalists | |