| Name | Gender | Categories | |
|---|
| Kaká | m | Notable Athletes |  |
| Michio Kaku | m | Notable Scientists and Inventors | |
| A. P. J. Abdul Kalam | m | Indian Presidents and Prime Ministers | |
| Thelma Kalama | f | Olympic Medalists | |
| Mikhail Kalashnikov | m | Notable Scientists and Inventors | |
| Nikolay Kalashnikov | m | Olympic Medalists | |
| Birutė Kalėdienė | f | Olympic Medalists | |
| Kali | f | Characters in Hindu Mythology | |
| Kalidasa | m | Notable Writers | |
| Maiola Kalili | m | Olympic Medalists | |
| Manuella Kalili | m | Olympic Medalists | |
| Kaliman Asen I | m | Bulgarian Kings and Tsars | |
| Kaliman Asen II | m | Bulgarian Kings and Tsars | |
| Al Kaline | m | Hall-of-Famers, Notable Athletes | |
| Mikhail Kalinin | m | Other Leaders | |
| Irina Kalinina | f | Olympic Medalists | |
| Rafał Kalinowski | m | Saints | |
| Kaliopi | f | Notable Musicians | |
| Kallai | m | Biblical Characters | |
| Antti Kalliomäki | m | Olympic Medalists | |
| Kálmán | m | Hungarian Kings and Queens | |
| Maria Kalmykova | f | Olympic Medalists | |
| Juris Kalniņš | m | Olympic Medalists | |
| Kaloyan | m | Bulgarian Kings and Tsars | |
| Levan Kalyayev | m | Olympic Medalists | |
| Saga | m | Japanese Emperors | |
| Federico Kammerichs | m | Olympic Medalists | |
| Anna-Karin Kammerling | f | Olympic Medalists | |
| Davis Kamoga | m | Olympic Medalists | |
| Naoto Kan | m | Japanese Prime Ministers | |
| Eric Kandel | m | Nobel Prize Winners | |
| Wassily Kandinsky | m | Notable Artists | |
| Bob Kane | m | Notable Artists, Notable Writers | |
| Carol Kane | f | Emmy Award Winners, Notable Actors and Entertainers | |
| Charles Foster Kane | m | Fictional Characters from Movies | |
| Patrick Kane | m | Most Valuable Players, Notable Athletes | |
| Paul Kane | m | Notable Artists | |
| Ichijo | m | Japanese Emperors | |
| Makoto Kaneko | m | Olympic Medalists | |
| Chukyo | m | Japanese Emperors | |
| Kang Min-ho | m | Olympic Medalists | |
| Bernd Kannenberg | m | Olympic Medalists | |
| Kanō Jigorō | m | Notable Athletes | |
| Immanuel Kant | m | Notable Philosophers and Thinkers | |
| Tapio Kantanen | m | Olympic Medalists | |
| Paul Kantner | m | Rock and Roll Hall-of-Famers | |
| Denny Kantono | m | Olympic Medalists | |
| Tadeusz Kantor | m | Notable Artists | |
| Leonid Kantorovich | m | Nobel Prize Winners, Notable Philosophers and Thinkers | |
| Charles K. Kao | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Pyotr Kapitsa | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Raj Kapoor | m | Notable Actors and Entertainers | |
| Vadim Kapranov | m | Olympic Medalists | |
| Vasiliy Kaptyukh | m | Olympic Medalists | |
| Denis Kapustin | m | Olympic Medalists | |
| Kara | f | Hurricanes and Tropical Storms | |
| Vladimir Karabutov | m | Olympic Medalists | |
| Eftychia Karagianni | f | Olympic Medalists | |
| Alyosha Karamazov | m | Fictional Characters from Books | |
| Fyodor Karamazov | m | Fictional Characters from Books | |
| Nikolay Karamzin | m | Notable Philosophers and Thinkers | |
| Angeliki Karapataki | f | Olympic Medalists | |
| Leo Karasuma | m | Saints | |
| Kardam | m | Bulgarian Kings and Tsars | |
| Khloé Kardashian | f | Notable Actors and Entertainers | |
| Kim Kardashian | f | Notable Actors and Entertainers | |
| Kourtney Kardashian | f | Notable Actors and Entertainers | |
| Rob Kardashian | m | Notable Actors and Entertainers | |
| Kareah | m | Biblical Characters | |
| Karl IV | m | Bohemian Kings, German Kings and Holy Roman Emperors | |
| Aleksandr Karelin | m | Notable Athletes, Olympic Medalists | |
| Karen | f | Hurricanes and Tropical Storms | |
| Karen | f | Hurricanes and Tropical Storms | |
| Karen | f | Hurricanes and Tropical Storms | |
| Karen | f | Hurricanes and Tropical Storms | |
| Karen | f | Hurricanes and Tropical Storms | |
| Anna Karenina | f | Fictional Characters from Books | |
| Katalin Karikó | f | Nobel Prize Winners | |
| Anna Karina | f | Notable Actors and Entertainers | |
| Julius Kariuki | m | Olympic Medalists | |
| Paul Kariya | m | Hall-of-Famers, Notable Athletes | |
| Karl | m | Hurricanes and Tropical Storms | |
| Karl | m | Hurricanes and Tropical Storms | |
| Karl | m | Hurricanes and Tropical Storms | |
| 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 IX | m | Swedish Kings and Queens | |
| 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 X Gustav | m | Swedish Kings and Queens | |
| Karl XI | m | Swedish Kings and Queens | |
| Karl XII | m | Swedish Kings and Queens | |
| Karl XIII | m | Norwegian Kings and Queens, Swedish Kings and Queens | |
| Karl XIV Johan | m | Norwegian Kings and Queens, Swedish Kings and Queens | |
| Karl XV | m | Norwegian Kings and Queens, Swedish Kings and Queens | |
| Jerome Karle | m | Nobel Prize Winners | |
| Erik Axel Karlfeldt | m | Nobel Prize Winners, Notable Writers | |
| Maria Karlowska | f | Saints | |
| Tawakkol Karman | f | Nobel Prize Winners | |
| Artūras Karnišovas | m | Olympic Medalists | |
| Yanina Karolchyk-Pravalinskaya | f | Olympic Medalists | |
| 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 | |
| György Kárpáti | m | Olympic Medalists | |
| Martin Karplus | m | Nobel Prize Winners | |
| Anatoliy Karpov | m | Notable Athletes | |
| Dmitriy Karpov | m | Olympic Medalists | |
| Marina Karpunina | f | Olympic Medalists | |
| Alex Karras | m | Hall-of-Famers, Notable Athletes | |
| Paul Karrer | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Anatoliy Kartashov | m | Olympic Medalists | |
| Kotoku | m | Japanese Emperors | |
| Monmu | m | Japanese Emperors | |
| Veikko Karvonen | m | Olympic Medalists | |
| Hamid Karzai | m | Other Leaders | |
| Tamás Kásás | m | Olympic Medalists | |
| Zoltán Kásás | m | Olympic Medalists | |
| Igor Kashkarov | m | Olympic Medalists | |
| Dagmar Käsling | f | Olympic Medalists | |
| Šárka Kašpárková | f | Olympic Medalists | |
| Garry Kasparov | m | Notable Athletes | |
| Nimatullah Youssef Kassab Al-Hardini | m | Saints | |
| Robert Kasting | m | Olympic Medalists | |
| Alfred Kastler | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Gjergj "Skanderbeg" Kastrioti | m | Notable Military Figures | |
| Antti Kasvio | m | Olympic Medalists | |
| Go-Yozei | m | Japanese Emperors | |
| Erkki Kataja | m | Olympic Medalists | |
| Katarina of Sweden | f | Saints | |
| Kate | f | Hurricanes and Tropical Storms | |
| Kate | f | Hurricanes and Tropical Storms | |
| Kate | f | Hurricanes and Tropical Storms | |
| Terry Kath | m | Rock and Roll Hall-of-Famers | |
| Katharine | f | Shakespearian Characters | |
| Katia | f | Hurricanes and Tropical Storms | |
| Katia | f | Hurricanes and Tropical Storms | |
| Katie | f | Hurricanes and Tropical Storms | |
| Lena Katina | f | Notable Musicians | |
| Sawao Katō | m | Notable Athletes, Olympic Medalists | |
| András Katona | m | Olympic Medalists | |
| Katrina | f | Hurricanes and Tropical Storms | |
| Katrina | f | Hurricanes and Tropical Storms | |
| Katrina | f | Hurricanes and Tropical Storms | |
| Go-Kashiwabara | m | Japanese Emperors | |
| Katsushika Hokusai | m | Notable Artists | |
| Ryszard Katus | m | Olympic Medalists | |
| Bernard Katz | m | Nobel Prize Winners | |
| Elias Katz | m | Olympic Medalists | |
| Jeffrey Katzenberg | m | Notable Businesspeople, Notable Filmmakers | |
| Klaus Katzur | m | Olympic Medalists | |
| Evelyn Kaufer | f | Olympic Medalists | |
| Angelica Kauffman | f | Notable Artists | |
| Andy Kaufman | m | Notable Actors and Entertainers | |
| Carl Kaufmann | m | Olympic Medalists | |
| Jorma Kaukonen | m | Rock and Roll Hall-of-Famers | |
| Anthony Kauleas | m | Saints | |
| Bill Kaulitz | m | Notable Musicians | |
| Elfriede Kaun | f | Olympic Medalists | |
| Vincent Kaun | m | Saints | |
| Kavadh I | m | Persian and Iranian Kings and Queens | |
| Kavadh II | m | Persian and Iranian Kings and Queens | |
| Konstantinos Petrou Kavafis | m | Notable Writers | |
| Kaveh the blacksmith | m | Characters in Persian Mythology | |
| Shinichiro Kawabata | m | Olympic Medalists | |
| Kawabata Yasunari | m | Nobel Prize Winners, Notable Writers | |
| Miho Kawabe | f | Olympic Medalists | |
| Tatsugo Kawaishi | m | Olympic Medalists | |
| Evelyn Kawamoto | f | Olympic Medalists | |
| Takeo Kawamura | m | Olympic Medalists | |
| Louis Kawara | m | Saints | |
| Kentaro Kawatsu | m | Olympic Medalists | |
| Ahmet Kaya | m | Notable Musicians | |
| Tony Kaye | m | Rock and Roll Hall-of-Famers | |
| Oluyemi Kayode | m | Olympic Medalists | |
| Kayumars | m | Indian Sultans and Emperors | |
| Elia Kazan | m | Notable Filmmakers, Oscar Award Winners | |
| Tatyana Kazankina | f | Olympic Medalists | |
| Vladimir Kazantsev | m | Olympic Medalists | |
| Nikos Kazantzakis | m | Notable Writers | |
| 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 | |
| Augustine Kazotic | m | Saints | |
| Warren Kealoha | m | Olympic Medalists | |
| John Kearney | m | Saints | |
| Annalise Keating | f | Fictional Characters from Television | |
| Buster Keaton | m | Notable Actors and Entertainers | |
| Diane Keaton | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Michael Keaton | m | Notable Actors and Entertainers | |
| Gordon "Duke" Keats | m | Hall-of-Famers | |
| John Keats | m | Notable Writers | |
| Tsegaye Kebede Wordofa | m | Olympic Medalists | |
| Kedar | m | Biblical Characters | |
| Kedemah | m | Biblical Characters | |
| Mohamed Kedir | m | Olympic Medalists | |
| Kedorlaomer | m | Biblical Characters | |
| Lila Kedrova | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Ernie Keebler | m | Other Fictional Characters | |
| Tim Keefe | m | Hall-of-Famers, Notable Athletes | |
| Willie Keeler | m | Hall-of-Famers, Notable Athletes | |
| Maynard James Keenan | m | Notable Musicians | |
| Catherine Keener | f | Notable Actors and Entertainers | |
| Hennie Keetelaar | m | Olympic Medalists | |
| Meb Keflezighi | m | Olympic Medalists | |
| Ray Kegeris | m | Olympic Medalists | |
| Frank Kehoe | m | Olympic Medalists | |
| Jules Keignaert | m | Olympic Medalists | |
| Keiko | m | Japanese Emperors, Other Mythological Characters | |
| Keilah | m | Biblical Characters | |
| Kip Keino | m | Notable Athletes, Olympic Medalists | |
| Naman Keïta | m | Olympic Medalists | |
| Salif Keita | m | Notable Musicians | |
| Keitai | m | Japanese Emperors | |
| Harvey Keitel | m | Notable Actors and Entertainers | |
| Keith | m | Hurricanes and Tropical Storms | |
| Keith | m | Hurricanes and Tropical Storms | |
| Kelaiah | m | Biblical Characters | |
| Kelal | m | Biblical Characters | |
| Anastasia Kelesidou | f | Olympic Medalists | |
| Ágnes Keleti | f | Notable Athletes, Olympic Medalists | |
| George Kell | m | Hall-of-Famers, Notable Athletes | |
| Christian Keller | m | Olympic Medalists | |
| Helen Keller | f | Notable Activists and Revolutionaries | |
| John Keller | m | Olympic Medalists | |
| Allen Kelley | m | Olympic Medalists | |
| Dean Kelley | m | Olympic Medalists | |
| Joe Kelley | m | Hall-of-Famers | |
| Gyula Kellner | m | Olympic Medalists | |
| Paul Kellner | m | Olympic Medalists | |
| Rosa Kellner | f | Olympic Medalists | |
| Frank B. Kellogg | m | Nobel Prize Winners | |
| Betty Kelly | f | Rock and Roll Hall-of-Famers | |
| Daniel Kelly | m | Olympic Medalists | |
| Ellsworth Kelly | m | Notable Artists | |
| Fred Kelly | m | Olympic Medalists | |
| Gene Kelly | m | Notable Actors and Entertainers | |
| George Kelly | m | Hall-of-Famers | |
| Grace Kelly | f | Notable Actors and Entertainers, Oscar Award Winners, Other Royalty | |
| Jim Kelly | m | Hall-of-Famers, Notable Athletes | |
| Leonard "Red" Kelly | m | Hall-of-Famers, Notable Athletes | |
| Leroy Kelly | m | Hall-of-Famers | |
| Margaret Kelly-Hohmann | f | Olympic Medalists | |
| Mike "King" Kelly | m | Hall-of-Famers | |
| R. Kelly | m | Notable Musicians | |
| Kelub | m | Biblical Characters | |
| Kelub | m | Biblical Characters | |
| Keluhi | m | Biblical Characters | |
| Gloria Kemasuode | f | Olympic Medalists | |
| John Kemble | m | Saints | |
| Jenny Kemp | f | Olympic Medalists | |
| Peter Kemp | m | Olympic Medalists | |
| Mario Kempes | m | Notable Athletes | |
| Patty Kempner | f | Olympic Medalists | |
| Kemuel | m | Biblical Characters | |
| Kemuel | m | Biblical Characters | |
| Kemuel | m | Biblical Characters | |
| Kenaanah | m | Biblical Characters | |
| Kenaanah | m | Biblical Characters | |
| Kenan | m | Biblical Characters | |
| Kenani | m | Biblical Characters | |
| Kenaniah | m | Biblical Characters | |
| Kenaniah | m | Biblical Characters | |
| Kenaz | m | Biblical Characters | |
| Kenaz | m | Biblical Characters | |
| Kenaz | m | Biblical Characters | |
| Kenaz | m | Biblical Characters | |
| Edward Calvin Kendall | m | Nobel Prize Winners | |
| Henry Way Kendall | m | Nobel Prize Winners | |
| Kendra | f | Hurricanes and Tropical Storms | |
| John Kendrew | m | Nobel Prize Winners | |
| Eddie Kendricks | m | Rock and Roll Hall-of-Famers | |
| Kenelm | m | Saints | |
| György Kenéz | m | Olympic Medalists | |
| Johan Kenkhuis | m | Olympic Medalists | |
| Angela Kennedy | f | Olympic Medalists | |
| Cortez Kennedy | m | Hall-of-Famers | |
| George Kennedy | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Jackie Kennedy | f | American First Ladies | |
| John F. Kennedy | m | American Presidents | |
| Robert F. Kennedy | m | Notable Politicians and Statespeople | |
| Ted Kennedy | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Bob Kenney | m | Olympic Medalists | |
| Obi-Wan Kenobi | m | Fictional Characters from Movies | |
| Clark Kent | m | Fictional Characters from Books, Fictional Characters from Movies | |
| Jeff Kent | m | Most Valuable Players, Notable Athletes | |
| Kostas Kenteris | m | Olympic Medalists | |
| Kentigerna | f | Saints | |
| Dave Keon | m | Hall-of-Famers | |
| Johannes Kepler | m | Notable Scientists and Inventors | |
| Francis Kerbiriou | m | Olympic Medalists | |
| Jean Kerebel | m | Olympic Medalists | |
| Keren-Happuch | f | Biblical Characters | |
| Paul Keres | m | Notable Athletes | |
| Kermit the Frog | m | Fictional Characters from Television | |
| Jakob Kern | m | Saints | |
| Keros | m | Biblical Characters | |
| Jack Kerouac | m | Notable Writers | |
| George Kerr | m | Olympic Medalists | |
| Harry Kerr | m | Olympic Medalists | |
| Jane Kerr | f | Olympic Medalists | |
| Miranda Kerr | f | Notable Actors and Entertainers | |
| Robert Kerr | m | Olympic Medalists | |
| Mark Kerry | m | Olympic Medalists | |
| Clayton Kershaw | m | Most Valuable Players, Notable Athletes | |
| Imre Kertész | m | Nobel Prize Winners, Notable Writers | |
| Kesed | m | Biblical Characters | |
| Alajos Keserű | m | Olympic Medalists | |
| Ferenc Keserű | m | Olympic Medalists | |
| Kesha | f | Notable Musicians | |
| Kessog | m | Saints | |
| Dan Ketchum | m | Olympic Medalists | |
| Joseph Keter | m | Olympic Medalists | |
| Wolfgang Ketterle | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Keturah | f | Biblical Characters | |
| Gomidas Keumurgian | m | Saints | |
| Kevin | m | Saints | |
| Achilleus Kewanuka | m | Saints | |
| John Maynard Keynes | m | Notable Philosophers and Thinkers | |
| Alicia Keys | f | Grammy Award Winners, Notable Musicians | |
| Keziah | f | Biblical Characters | |
| Irina Khabarova | f | Olympic Medalists | |
| Aram Khachaturian | m | Notable Musicians | |
| Khadija bint Khuwaylid | f | Other Royalty | |
| Khalid ibn al-Walid | m | Notable Military Figures | |
| Khamûl | m | Tolkien's Characters | |
| Bismillah Khan | m | Notable Musicians | |
| Chaka Khan | f | Notable Musicians | |
| Nusrat Fateh Ali Khan | m | Notable Musicians | |
| Shah Rukh Khan | m | Notable Actors and Entertainers | |
| Joseph Khang | m | Saints | |
| Peter Khanh | m | Saints | |
| Valeri Kharlamov | m | Hall-of-Famers, Notable Athletes | |
| Bisher Khasawneh | m | Jordanian Prime Ministers | |
| Adnan Khashoggi | m | Notable Businesspeople | |
| Jamal Khashoggi | m | Notable Journalists | |
| Omar Khayyám | m | Notable Philosophers and Thinkers, Notable Writers | |
| Ala ud-Din Khilji | m | Indian Sultans and Emperors | |
| Jalal ud-Din Firuz Khilji | m | Indian Sultans and Emperors | |
| Khizr Khan | m | Indian Sultans and Emperors | |
| Vasiliy Khmelevskiy | m | Olympic Medalists | |
| Bohdan Khmelnytsky | m | Notable Military Figures | |
| Pavlo Khnykin | m | Olympic Medalists | |
| Nadezhda Khnykina-Dvalishvili | f | Olympic Medalists | |
| Mikhail Khodorkovsky | m | Notable Businesspeople | |
| Har Gobind Khorana | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Khosrau I the Just | m | Persian and Iranian Kings and Queens | |
| Khosrau II | m | Persian and Iranian Kings and Queens | |
| Khosrau the Usurper | m | Persian and Iranian Kings and Queens | |
| Ivanka Khristova | f | Olympic Medalists | |
| Tsvetanka Khristova | f | Olympic Medalists | |
| Nikita Khrushchev | m | Other Leaders | |
| Vyacheslav Khrynin | m | Olympic Medalists | |
| Yelena Khudashova | f | Olympic Medalists | |
| Irina Khudoroshkina | f | Olympic Medalists | |
| Khufu | m | Egyptian Pharaohs | |
| Amir Khusrau | m | Notable Musicians, Notable Writers | |
| Khusro Khan | m | Indian Sultans and Emperors | |
| Khutughtu Khan | m | Chinese Emperors, Other Royalty | |
| Abbas Kiarostami | m | Notable Filmmakers | |
| Ambrose Kibuka | m | Saints | |
| Dragan Kićanović | m | Olympic Medalists | |
| Jason Kidd | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| William Kidd | m | Notable Evildoers | |
| Beatrix Kiddo | f | Fictional Characters from Movies | |
| Angélique Kidjo | f | Notable Musicians | |
| Nicole Kidman | f | Notable Actors and Entertainers, Oscar Award Winners | |
| Anthony Kiedis | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Adolph Kiefer | m | Olympic Medalists | |
| Vanessa Kiefer | f | Fictional Characters from Television | |
| Richard Kiel | m | Notable Actors and Entertainers | |
| Urszula Kielan | f | Olympic Medalists | |
| Kerstin Kielgass | f | Olympic Medalists | |
| Tom Kiely | m | Olympic Medalists | |
| Luke Kiemon | m | Saints | |
| Alfred Kienzle | m | Olympic Medalists | |
| Søren Kierkegaard | m | Notable Philosophers and Thinkers | |
| Bob Kiesel | m | Olympic Medalists | |
| Theresia Kiesl | f | Olympic Medalists | |
| Walt Kiesling | m | Hall-of-Famers | |
| Krzysztof Kieślowski | m | Notable Filmmakers | |
| Pam Kilborn | f | Olympic Medalists | |
| Jack Kilby | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Richard Kiley | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Kilian | m | Saints | |
| Harmon Killebrew | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Molly Killingbeck | f | Olympic Medalists | |
| Jean-Claude Killy | m | Notable Athletes, Olympic Medalists | |
| Val Kilmer | m | Notable Actors and Entertainers | |
| Lemmy Kilmister | m | Notable Musicians | |
| Andrew Kim Taegon | m | Saints | |
| Anthony Kim Song-u | m | Saints | |
| Kim Bo-ram | m | Olympic Medalists | |
| Kim Chung-tae | m | Olympic Medalists | |
| Columba Kim Hyo-im | f | Saints | |
| Kim Dae-jung | m | Nobel Prize Winners, Other Leaders | |
| Kim Dong-joo | m | Olympic Medalists | |
| Kim Dong-moon | m | Olympic Medalists | |
| Kim Eun-sook | f | Olympic Medalists | |
| Kim Han-soo | m | Olympic Medalists | |
| Kim Hwa-soon | f | Olympic Medalists | |
| Kim Hyun-ah | f | Notable Musicians | |
| Kim Hyun-joong | m | Notable Musicians | |
| Kim Hyun-soo | m | Olympic Medalists | |
| Kim Jin-ho | f | Olympic Medalists | |
| Kim Jo-sun | f | Olympic Medalists | |
| Kim Ki-tae | m | Olympic Medalists | |
| Kim Kwang-hyun | m | Olympic Medalists | |
| Kim Kyung-wook | f | Olympic Medalists | |
| Kim Min-jae | m | Olympic Medalists | |
| Kim Moon-soo | m | Olympic Medalists | |
| Kim "RM" Nam-joon | m | Notable Musicians | |
| Kim Nam-soon | f | Olympic Medalists | |
| Nellie Kim | f | Notable Athletes, Olympic Medalists | |
| Kim Seok-jin | m | Notable Musicians | |
| Kim Soo-kyung | m | Olympic Medalists | |
| Kim Soo-nyung | f | Olympic Medalists | |
| Kim Tae-gyun | m | Olympic Medalists | |
| Kim "V" Tae-hyung | m | Notable Musicians | |
| Teresa Kim | f | Saints | |
| Teresa Kim Im-i | f | Saints | |
| Kim Young-hee | f | Olympic Medalists | |
| Bruce Kimball | m | Olympic Medalists | |
| Douglas Kimbell | m | Olympic Medalists | |
| Kimbra | f | Grammy Award Winners | |
| Kipkemboi Kimeli | m | Olympic Medalists | |
| Kimham | m | Biblical Characters | |
| Kenji Kimihara | m | Olympic Medalists | |
| Nick Kimpton | m | Olympic Medalists | |
| Anthony Kimura | m | Saints | |
| Jutaro Kimura | m | Olympic Medalists | |
| Leonard Kimura | m | Saints | |
| Kimura Masahiko | m | Notable Athletes | |
| Sebastian Kimura | m | Saints | |
| Takuya Kimura | m | Olympic Medalists | |
| Frank "Bruiser" Kinard | m | Hall-of-Famers | |
| Manfred Kinder | m | Olympic Medalists | |
| Ralph Kiner | m | Hall-of-Famers, Notable Athletes | |
| B.B. King | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Albert King | m | Rock and Roll Hall-of-Famers | |
| Ben E. King | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Bernard King | m | Hall-of-Famers, Notable Athletes | |
| Billie Jean King | f | Notable Athletes | |
| Bob King | m | Olympic Medalists | |
| Carole King | f | Grammy Award Winners, Notable Musicians, Rock and Roll Hall-of-Famers | |
| Charles King | m | Olympic Medalists | |
| Ed King | m | Rock and Roll Hall-of-Famers | |
| Ellen King | f | Olympic Medalists | |
| Jim King | m | Olympic Medalists | |
| Joyce King | f | Olympic Medalists | |
| Leamon King | m | Olympic Medalists | |
| Martin Luther King Jr. | m | Nobel Prize Winners, Notable Activists and Revolutionaries | |
| Micki King | f | Olympic Medalists | |
| Stephen King | m | Notable Writers | |
| Zach King | m | Notable Actors and Entertainers | |
| Roger Kingdom | m | Olympic Medalists | |
| Brendan Kingman | m | Olympic Medalists | |
| John Kingoku | m | Saints | |
| Ben Kingsley | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Mary Kingsley | f | Notable Explorers and Adventurers | |
| Paul Kingsman | m | Olympic Medalists | |
| Mike Kinkade | m | Olympic Medalists | |
| Kinmei | m | Japanese Emperors | |
| Jorma Kinnunen | m | Olympic Medalists | |
| Michael Kinoshi | m | Saints | |
| John Kinsako | m | Saints | |
| John Kinsella | m | Olympic Medalists | |
| Daniel Kinsey | m | Olympic Medalists | |
| Klaus Kinski | m | Notable Actors and Entertainers | |
| Mary Magdalen Kiota | f | Saints | |
| Eliud Kipchoge | m | Notable Athletes, Olympic Medalists | |
| Wilson Kipketer | m | Olympic Medalists | |
| Wilson Kipketer | m | Olympic Medalists | |
| Stephen Kipkorir | m | Olympic Medalists | |
| Rudyard Kipling | m | Nobel Prize Winners, Notable Writers | |
| Martin Kippenberger | m | Notable Artists | |
| Asbel Kiprop | m | Olympic Medalists | |
| Nixon Kiprotich | m | Olympic Medalists | |
| Wilson Kiprugut | m | Olympic Medalists | |
| Brimin Kipruto | m | Olympic Medalists | |
| Moses Kiptanui | m | Olympic Medalists | |
| Michael Kiraiemon | m | Saints | |
| Karch Kiraly | m | Notable Athletes, Olympic Medalists | |
| Bill Kirby | m | Olympic Medalists | |
| Edward Kirby | m | Olympic Medalists | |
| Jack Kirby | m | Notable Artists | |
| Luke Kirby | m | Saints | |
| Gustav Kirchhoff | m | Notable Scientists and Inventors | |
| Ernst Ludwig Kirchner | m | Notable Artists | |
| Néstor Kirchner | m | Argentine Presidents | |
| Olga Kirichenko | f | Olympic Medalists | |
| Anatole Kiriggwajjo | m | Saints | |
| Mukasa Kiriwawanyu | m | Saints | |
| Kirk | m | Hurricanes and Tropical Storms | |
| James T. Kirk | m | Fictional Characters from Television | |
| Tara Kirk | f | Olympic Medalists | |
| Richard Kirkman | m | Saints | |
| Philipp Kirkorov | m | Notable Musicians | |
| Morris Kirksey | m | Olympic Medalists | |
| Nikolay Kirov | m | Olympic Medalists | |
| Bill Kirschbaum | m | Olympic Medalists | |
| Jutta Kirst | f | Olympic Medalists | |
| Danny Kirwan | m | Rock and Roll Hall-of-Famers | |
| Gábor Kis | m | Olympic Medalists | |
| Linda Kisabaka | f | Olympic Medalists | |
| Diego Kisai | m | Saints | |
| Juan Kisaka | m | Saints | |
| Vladimir Kiselyov | m | Olympic Medalists | |
| Mariya Kiselyova | f | Olympic Medalists | |
| Kish | m | Biblical Characters | |
| Kish | m | Biblical Characters | |
| Kish | m | Biblical Characters | |
| Kish | m | Biblical Characters | |
| Kish | m | Biblical Characters | |
| Kishi | m | Biblical Characters | |
| Fumio Kishida | m | Japanese Prime Ministers | |
| Masashi Kishimoto | m | Notable Artists | |
| Kislon | m | Biblical Characters | |
| Antal Kiss | m | Olympic Medalists | |
| Gergely Kiss | m | Olympic Medalists | |
| Géza Kiss | m | Olympic Medalists | |
| István Kiss | m | Olympic Medalists | |
| Henry Kissinger | m | Nobel Prize Winners, Notable Politicians and Statespeople | |
| Czesław Kiszczak | m | Polish Presidents and Prime Ministers | |
| Kusuo Kitamura | m | Olympic Medalists | |
| Takeshi Kitano | m | Notable Actors and Entertainers, Notable Filmmakers | |
| Nicholas Bunkerd Kitbamrung | m | Saints | |
| Eartha Kitt | f | Notable Actors and Entertainers, Notable Musicians | |
| Samson Kitur | m | Olympic Medalists | |
| Anthony Kiun | m | Saints | |
| Antero Kivi | m | Olympic Medalists | |
| Abel Kiviat | m | Olympic Medalists | |
| Masaji Kiyokawa | m | Olympic Medalists | |
| Kizito | m | Saints | |
| Felix "PewDiePie" Kjellberg | m | Notable Actors and Entertainers | |
| Marzia Kjellberg | f | Notable Actors and Entertainers | |
| Beate Klarsfeld | f | Notable Journalists | |
| Craig Klass | m | Olympic Medalists | |
| Katarzyna Klata | f | Olympic Medalists | |
| Klaus | m | Hurricanes and Tropical Storms | |
| Klaus | m | Hurricanes and Tropical Storms | |
| Ina Kleber | f | Olympic Medalists | |
| Paul Klee | m | Notable Artists | |
| Calvin Klein | m | Notable Artists | |
| Chuck Klein | m | Hall-of-Famers, Most Valuable Players | |
| Hans-Joachim Klein | m | Olympic Medalists | |
| Helga Klein | f | Olympic Medalists | |
| Herbert Klein | m | Olympic Medalists | |
| Lawrence Klein | m | Nobel Prize Winners | |
| Naomi Klein | f | Notable Activists and Revolutionaries, Notable Writers | |
| Noeki Klein | f | Olympic Medalists | |
| Yves Klein | m | Notable Artists | |
| Joe Kleine | m | Olympic Medalists | |
| Megan Kleine | f | Olympic Medalists | |
| Nadine Kleinert | f | Olympic Medalists | |
| Michael Klim | m | Olympic Medalists | |
| Romuald Klim | m | Olympic Medalists | |
| Natalya Klimova | f | Olympic Medalists | |
| Inta Kļimoviča | f | Olympic Medalists | |
| Gustav Klimt | m | Notable Artists | |
| Kevin Kline | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Paul Klingenburg | m | Olympic Medalists | |
| Josh Klinghoffer | m | Rock and Roll Hall-of-Famers | |
| Jürgen Klinsmann | m | Notable Athletes | |
| Vitali Klitschko | m | Notable Athletes | |
| Wladimir Klitschko | m | Notable Athletes, Olympic Medalists | |
| Ewa Kłobukowska | f | Olympic Medalists | |
| Yana Klochkova | f | Olympic Medalists | |
| Ignacy Kłopotowski | m | Saints | |
| Karlheinz Klotz | m | Olympic Medalists | |
| Carolina Klüft | f | Notable Athletes, Olympic Medalists | |
| Aaron Klug | m | Nobel Prize Winners | |
| Jack Klugman | m | Emmy Award Winners, Notable Actors and Entertainers | |
| Sergey Klyugin | m | Olympic Medalists | |
| Ursula Knab | f | Olympic Medalists | |
| Christiane Knacke | f | Olympic Medalists | |
| Ulrika Knape-Lindbergh | f | Olympic Medalists | |
| Andreas Knebel | m | Olympic Medalists | |
| Andro Knego | m | Olympic Medalists | |
| Brandon Knight | m | Olympic Medalists | |
| Merald "Bubba" Knight | m | Rock and Roll Hall-of-Famers | |
| Keira Knightley | f | Notable Actors and Entertainers | |
| Leslie Knope | f | Fictional Characters from Television | |
| David Knopfler | m | Rock and Roll Hall-of-Famers | |
| Mark Knopfler | m | Notable Musicians, Rock and Roll Hall-of-Famers | |
| Lothar Knörzer | m | Olympic Medalists | |
| Beyoncé Knowles | f | Grammy Award Winners, Notable Musicians | |
| Carl Knowles | m | Olympic Medalists | |
| William Standish Knowles | m | Nobel Prize Winners | |
| Emma Knox | f | Olympic Medalists | |
| Johnny Knoxville | m | Notable Actors and Entertainers | |
| Knud V Magnussen | m | Danish Kings and Queens | |
| Knud VI | m | Danish Kings and Queens | |
| Keith Knudsen | m | Rock and Roll Hall-of-Famers | |
| Knud II the Great | m | Danish Kings and Queens, English and British Kings and Queens, Norwegian Kings and Queens | |
| Knut I | m | Swedish Kings and Queens | |
| Knut II the Long | m | Swedish Kings and Queens | |
| Donald Knuth | m | Notable Philosophers and Thinkers | |
| Ko Young-min | m | Olympic Medalists | |
| Koan | m | Japanese Emperors, Other Mythological Characters | |
| Makoto Kobayashi | m | Nobel Prize Winners | |
| Masahide Kobayashi | m | Olympic Medalists | |
| Ivana Kobilca | f | Notable Artists | |
| Brian Kobilka | m | Nobel Prize Winners | |
| Beate Koch | f | Olympic Medalists | |
| Billy Koch | m | Olympic Medalists | |
| Marita Koch | f | Notable Athletes, Olympic Medalists | |
| Robert Koch | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Sebastian Koch | m | Notable Actors and Entertainers | |
| Emil Theodor Kocher | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Momoko Kōchi | f | Notable Actors and Entertainers | |
| Sándor Kocsis | m | Notable Athletes | |
| Paul Koech | m | Olympic Medalists | |
| Peter Koech | m | Olympic Medalists | |
| Mihail Kogălniceanu | m | Romanian Presidents and Prime Ministers | |
| Kogen | m | Japanese Emperors, Other Mythological Characters | |
| Benjamin Kogo | m | Olympic Medalists | |
| Micah Kogo | m | Olympic Medalists | |
| Kohath | m | Biblical Characters | |
| Matthew Kohioye | m | Saints | |
| Masahito Kohiyama | m | Olympic Medalists | |
| Christa Köhler | f | Olympic Medalists | |
| Georges J. F. Köhler | m | Nobel Prize Winners | |
| Käthe Köhler | f | Olympic Medalists | |
| Walter Kohn | m | Nobel Prize Winners | |
| Reizo Koike | m | Olympic Medalists | |
| Jun'ichirō Koizumi | m | Japanese Prime Ministers | |
| George Kojac | m | Olympic Medalists | |
| Hideo Kojima | m | Notable Artists | |
| Hirotami Kojima | m | Olympic Medalists | |
| Ada Kok | f | Olympic Medalists | |
| Anton Kokorin | m | Notable Athletes | |
| Oskar Kokoschka | m | Notable Artists | |
| Manfred Kokot | m | Olympic Medalists | |
| Hiroki Kokubo | m | Olympic Medalists | |
| John Kokumbuko | m | Saints | |
| Kolaiah | m | Biblical Characters | |
| Kolaiah | m | Biblical Characters | |
| Claudia Kolb | f | Olympic Medalists | |
| Maksymilian Kolbe | m | Saints | |
| Hannes Kolehmainen | m | Notable Athletes, Olympic Medalists | |
| Nikolay Kolesnikov | m | Olympic Medalists | |
| Aleksandra Kollontai | f | Notable Politicians and Statespeople | |
| Käthe Kollwitz | f | Notable Artists | |
| Andrey Kolmogorov | m | Notable Philosophers and Thinkers | |
| Aleksander Kolmpere | m | Olympic Medalists | |
| Aleksandr Kolotov | m | Olympic Medalists | |
| Tatyana Kolpakova | f | Olympic Medalists | |
| Adolph Kolping | m | Saints | |
| Yulia Koltunova | f | Olympic Medalists | |
| Władysław Komar | m | Olympic Medalists | |
| Vladimir Komarov | m | Notable Explorers and Adventurers | |
| Stanislava Komarova | f | Olympic Medalists | |
| Leo Kombiogi | m | Saints | |
| Jan Amos Komenský | m | Notable Philosophers and Thinkers | |
| Rachel Komisarz | f | Olympic Medalists | |
| Vera Komisova | f | Olympic Medalists | |
| Anna Komnene | f | Other Royalty | |
| Jon Koncak | m | Olympic Medalists | |
| Kōji Kondō | m | Notable Musicians | |
| Lyudmila Kondratyeva | f | Olympic Medalists | |
| Anatoliy Konev | m | Olympic Medalists | |
| Ivan Konev | m | Notable Military Figures | |
| Pauline Konga | f | Olympic Medalists | |
| Ford Hiroshi Konno | m | Olympic Medalists | |
| Halina Konopacka | f | Olympic Medalists | |
| Yuriy Konovalov | m | Olympic Medalists | |
| Konrad I | m | Polish High Dukes and Kings | |
| Konrad I of Franconia | m | German Kings and Holy Roman Emperors | |
| Konrad II | m | German Kings and Holy Roman Emperors | |
| Konrad III | m | German Kings and Holy Roman Emperors | |
| Konrad IV | m | German Kings and Holy Roman Emperors | |
| Konrad of Parzham | m | Saints | |
| Ferenc Konrád | m | Olympic Medalists | |
| János Konrád | m | Olympic Medalists | |
| Mykola Konrad | m | Saints | |
| Ilsa Konrads | f | Olympic Medalists | |
| John Konrads | m | Olympic Medalists | |
| Ferdinand Konščak | m | Notable Explorers and Adventurers | |
| Konstantin | m | Russian Grand Dukes and Tsars | |
| Konstantin I | m | Bulgarian Kings and Tsars | |
| Konstantin II | m | Bulgarian Kings and Tsars | |
| Konstantinos II | m | Olympic Medalists, Other Royalty | |
| Jim Konstanty | m | Most Valuable Players | |
| Sofia Konukh | f | Olympic Medalists | |
| Nadezhda Konyayeva | f | Olympic Medalists | |
| Koo Dae-sung | m | Olympic Medalists | |
| Tjalling C. Koopmans | m | Nobel Prize Winners | |
| Simone Koot | f | Olympic Medalists | |
| Raymond Kopa | m | Notable Athletes | |
| Mike Koplove | m | Olympic Medalists | |
| Sergey Koplyakov | m | Olympic Medalists | |
| Ted Koppel | m | Notable Journalists | |
| Korah | m | Biblical Characters | |
| Korah | m | Biblical Characters | |
| Korah | m | Biblical Characters | |
| Korah | m | Biblical Characters | |
| Olga Korbut | f | Notable Athletes, Olympic Medalists | |
| Janusz Korczak | m | Notable Writers | |
| Alberto Korda | m | Notable Artists | |
| Kore | m | Biblical Characters | |
| Kore | m | Biblical Characters | |
| Seiwa | m | Japanese Emperors | |
| Korei | m | Japanese Emperors, Other Mythological Characters | |
| Nijs Korevaar | m | Olympic Medalists | |
| Julius Korir | m | Olympic Medalists | |
| Tapio Korjus | m | Olympic Medalists | |
| Mikheil Korkia | m | Olympic Medalists | |
| Otar Korkia | m | Olympic Medalists | |
| Kormesiy | m | Bulgarian Kings and Tsars | |
| Kormisosh | m | Bulgarian Kings and Tsars | |
| Arthur Kornberg | m | Nobel Prize Winners | |
| Roger D. Kornberg | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Yuri Korneev | m | Olympic Medalists | |
| Aleksandr Kornelyuk | m | Olympic Medalists | |
| Andrey Korneyev | m | Olympic Medalists | |
| Helmuth Körnig | m | Olympic Medalists | |
| Sergei Korolev | m | Notable Scientists and Inventors | |
| Maria Koroleva | f | Olympic Medalists | |
| Natasha Korolyova | f | Notable Musicians | |
| Dirk Korthals | m | Olympic Medalists | |
| Robert Korzeniowski | m | Olympic Medalists | |
| Matthias Kosaka | m | Saints | |
| Gusman Kosanov | m | Olympic Medalists | |
| Kösem Sultan | f | Notable Politicians and Statespeople | |
| Sultan Kösen | m | Other Notables | |
| Aleksandr Kosenkov | m | Olympic Medalists | |
| Reuben Kosgei | m | Olympic Medalists | |
| Marina Koshevaya | f | Olympic Medalists | |
| Koshiba Masatoshi | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Kosho | m | Japanese Emperors, Other Mythological Characters | |
| Liza Koshy | f | Notable Actors and Entertainers | |
| Vladimir Kosinsky | m | Olympic Medalists | |
| Teodor Koskenniemi | m | Olympic Medalists | |
| Albrecht Kossel | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Stefka Kostadinova | f | Notable Athletes, Olympic Medalists | |
| Annabel Kosten | f | Olympic Medalists | |
| J. Michael Kosterlitz | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Joseph Kosuth | m | Notable Artists | |
| Zoltán Kósz | m | Olympic Medalists | |
| Caspar Kotenda | m | Saints | |
| Thomas Kotenda | m | Saints | |
| Sergey Kotenko | m | Olympic Medalists | |
| Rosemarie Kother-Gabriel | f | Olympic Medalists | |
| Olga Kotlyarova | f | Olympic Medalists | |
| Go-Mizunoo | m | Japanese Emperors | |
| Tatyana Kotova | f | Olympic Medalists | |
| Alicja Kotowska | f | Saints | |
| Mark Kotsay | m | Olympic Medalists | |
| Troy Kotsur | m | Notable Actors and Entertainers, Oscar Award Winners | |
| Josaphat Kotsylovsky | m | Saints | |
| Sandy Koufax | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Jannis Kounellis | m | Notable Artists | |
| Zdravko Kovačić | m | Olympic Medalists | |
| Ágnes Kovács | f | Olympic Medalists | |
| József Kovács | m | Olympic Medalists | |
| Zoltán Kővágó | m | Olympic Medalists | |
| Aleksandr Kovalenko | m | Olympic Medalists | |
| Andrei Kovalenko | m | Olympic Medalists | |
| Sergei Kovalenko | m | Olympic Medalists | |
| Sofya Kovalevskaya | f | Notable Philosophers and Thinkers | |
| Ainārs Kovals | m | Olympic Medalists | |
| Omelyan Kovch | m | Saints | |
| Valentina Kovpan | f | Olympic Medalists | |
| Kristy Kowal | f | Olympic Medalists | |
| Sugar "Kane" Kowalczyk | f | Fictional Characters from Movies | |
| Faustina Kowalska | f | Saints | |
| Daniel Kowalski | m | Olympic Medalists | |
| Stanley Kowalski | m | Fictional Characters from Movies, Fictional Characters from Plays and Musicals | |
| Stella Kowalski | f | Fictional Characters from Plays and Musicals | |
| Thomas Koyanangi | m | Saints | |
| Miguel Kozaki | m | Saints | |
| Thomas Kozaki | m | Saints | |
| Władysław Kozakiewicz | m | Olympic Medalists | |
| Nikolay Kozlov | m | Olympic Medalists | |
| Anna Kozlova | f | Olympic Medalists | |
| Leon Kozłowski | m | Polish Presidents and Prime Ministers | |
| Honorat Koźmiński | m | Saints | |
| Valentyna Kozyr | f | Olympic Medalists | |
| Edna Krabappel | f | Fictional Characters from Television | |
| Svetlana Krachevskaya | f | Olympic Medalists | |
| Alvin Kraenzlein | m | Olympic Medalists | |
| Alice Kramden | f | Fictional Characters from Television | |
| Ralph Kramden | m | Fictional Characters from Television | |
| Cosmo Kramer | m | Fictional Characters from Television | |
| Jerry Kramer | m | Hall-of-Famers | |
| Annegret Kramp-Karrenbauer | f | Notable Politicians and Statespeople | |
| Ivan Kramskoi | m | Notable Artists | |
| Gintaras Krapikas | m | Olympic Medalists | |
| Olena Krasovska | f | Olympic Medalists | |
| Jarmila Kratochvílová | f | Olympic Medalists | |
| Kratos | m | Other Fictional Characters | |
| Guido Kratschmer | m | Olympic Medalists | |
| Margareta Kratz | f | Saints | |
| Andrei Krauchanka | m | Olympic Medalists | |
| Alfredo Kraus | m | Notable Musicians | |
| Angelika Kraus | f | Olympic Medalists | |
| Michael Kraus | m | Olympic Medalists | |
| Barbara Krause | f | Olympic Medalists | |
| Christiane Krause | f | Olympic Medalists | |
| Edward "Moose" Krause | m | Hall-of-Famers | |
| Paul Krause | m | Hall-of-Famers | |
| Roswitha Krause | f | Olympic Medalists | |
| Alison Krauss | f | Grammy Award Winners, Notable Musicians | |
| Käthe Krauss | f | Olympic Medalists | |
| Ferenc Krausz | m | Nobel Prize Winners | |
| Viktor Kravchenko | m | Olympic Medalists | |
| Inessa Kravets | f | Olympic Medalists | |
| Krzysztof Krawczyk | m | Notable Musicians | |
| Lenny Krayzelburg | m | Olympic Medalists | |
| Kreacher | m | Harry Potter Characters | |
| Edwin G. Krebs | m | Nobel Prize Winners | |
| Hans Adolf Krebs | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Richard Krebs | m | Olympic Medalists | |
| Vera Krepkina | f | Olympic Medalists | |
| Bill Kreutzmann | m | Rock and Roll Hall-of-Famers | |
| Vitold Kreyer | m | Olympic Medalists | |
| Lothar Krieg | m | Olympic Medalists | |
| Robby Krieger | m | Rock and Roll Hall-of-Famers | |
| Marianne Kriel | f | Olympic Medalists | |
| Anatoli Krikun | m | Olympic Medalists | |
| Krishna | m | Characters in Hindu Mythology | |
| Christian I | m | Danish Kings and Queens, Norwegian Kings and Queens, Swedish Kings and Queens | |
| Christian II | m | Danish Kings and Queens, Norwegian Kings and Queens, Swedish Kings and Queens | |
| Kristina | f | Swedish Kings and Queens | |
| Ágota Kristóf | f | Notable Writers | |
| Christoffer III of Bavaria | m | Danish Kings and Queens, Norwegian Kings and Queens, Swedish Kings and Queens | |
| Kristy | f | Hurricanes and Tropical Storms | |
| Rick Krivda | m | Olympic Medalists | |
| Svetlana Krivelyova | f | Olympic Medalists | |
| Milorad Krivokapić | m | Olympic Medalists | |
| Mikhail Krivonosov | m | Olympic Medalists | |
| Marko Krizin | m | Saints | |
| Herbert Kroemer | m | Nobel Prize Winners | |
| August Krogh | m | Nobel Prize Winners | |
| Christian Krohg | m | Notable Artists | |
| Ruud Krol | m | Notable Athletes | |
| Annegret Kroniger | f | Olympic Medalists | |
| Evert Kroon | m | Olympic Medalists | |
| Pyotr Kropotkin | m | Notable Activists and Revolutionaries, Notable Philosophers and Thinkers | |
| Harry Kroto | m | Nobel Prize Winners | |
| Peder Severin Krøyer | m | Notable Artists | |
| Duje Krstulović | m | Olympic Medalists | |
| Freddy Krueger | m | Fictional Characters from Movies | |
| Barbara Krug | f | Olympic Medalists | |
| Heinrich Krug | m | Olympic Medalists | |
| Frantz Kruger | m | Olympic Medalists | |
| Luise Krüger | f | Olympic Medalists | |
| Walter Krüger | m | Olympic Medalists | |
| Larisa Kruglova | f | Olympic Medalists | |
| Yelena Kruglova | f | Olympic Medalists | |
| Paul Krugman | m | Nobel Prize Winners, Notable Philosophers and Thinkers | |
| Krum | m | Bulgarian Kings and Tsars | |
| Jānis Krūmiņš | m | Olympic Medalists | |
| J. W. Krumpholz | m | Olympic Medalists | |
| Jens Kruppa | m | Olympic Medalists | |
| Pam Kruse | f | Olympic Medalists | |
| Dave Krusen | m | Rock and Roll Hall-of-Famers | |
| Krusty the Clown | m | Fictional Characters from Television | |
| Ninel Krutova | f | Olympic Medalists | |
| Heino Kruus | m | Olympic Medalists | |
| Kelly Kryczka | f | Olympic Medalists | |
| Oleksandr Krykun | m | Olympic Medalists | |
| Karel Kryl | m | Notable Musicians | |
| Andrey Krylov | m | Olympic Medalists | |
| Vladimir Krylov | m | Olympic Medalists | |
| Elżbieta Krzesińska | f | Olympic Medalists | |
| Zdzisław Krzyszkowiak | m | Olympic Medalists | |
| Mike Krzyzewski | m | Hall-of-Famers | |
| Ku Kuo-chian | m | Olympic Medalists | |
| Ladislao Kubala | m | Notable Athletes | |
| Kublai Khan | m | Chinese Emperors, Other Royalty | |
| Kubrat | m | Bulgarian Kings and Tsars | |
| Stanley Kubrick | m | Notable Filmmakers | |
| Nikita Kucherov | m | Most Valuable Players, Notable Athletes | |
| John Kuck | m | Olympic Medalists | |
| Aleksey Kudryavtsev | m | Olympic Medalists | |
| Louis Kuehn | m | Olympic Medalists | |
| Peter Kufioji | m | Saints | |
| Thomas Kufioji | m | Saints | |
| Patrick Kühl | m | Olympic Medalists | |
| Bowie Kuhn | m | Hall-of-Famers | |
| Richard Kuhn | m | Nobel Prize Winners | |
| Thomas Kuhn | m | Notable Philosophers and Thinkers | |
| Rita Kühne | f | Olympic Medalists | |
| Juhan Kukk | m | Estonian Presidents and Prime Ministers | |
| Dainis Kūla | m | Olympic Medalists | |
| Georgi Kulikov | m | Olympic Medalists | |
| Vladislav Kulikov | m | Olympic Medalists | |
| Nikola Kuljača | m | Olympic Medalists | |
| Ilmar Kullam | m | Olympic Medalists | |
| Francis Kuloi | m | Saints | |
| Külüg Khan | m | Chinese Emperors, Other Royalty | |
| Astrid Kumbernuss | f | Olympic Medalists | |
| Anil Kumble | m | Notable Athletes | |
| Torsten Kumfeldt | m | Olympic Medalists | |
| Yuriy Kunakov | m | Olympic Medalists | |
| Sony Dwi Kuncoro | m | Olympic Medalists | |
| László Kuncz | m | Olympic Medalists | |
| Kundegunda of Poland | f | Saints | |
| Milan Kundera | m | Notable Writers | |
| Go-Nijo | m | Japanese Emperors | |
| Go-Saga | m | Japanese Emperors | |
| Josaphat Kuntsevych | m | Saints | |
| Hansjörg Kunze | m | Olympic Medalists | |
| Kuo Lee Chien-fu | m | Olympic Medalists | |
| Yanka Kupala | m | Notable Writers | |
| Mitch Kupchak | m | Olympic Medalists | |
| Ursula Küper | f | Olympic Medalists | |
| František Kupka | m | Notable Artists | |
| Ernst-Joachim Küppers | m | Olympic Medalists | |
| Olga Kuragina | f | Olympic Medalists | |
| Vyacheslav Kurennoy | m | Olympic Medalists | |
| Bob Kurland | m | Hall-of-Famers, Notable Athletes, Olympic Medalists | |
| Michael Kurobioye | m | Saints | |
| Hiroki Kuroda | m | Olympic Medalists | |
| Akira Kurosawa | m | Notable Filmmakers | |
| Takashi Kurosu | m | Olympic Medalists | |
| Klaus-Dieter Kurrat | m | Olympic Medalists | |
| Jari Kurri | m | Hall-of-Famers, Notable Athletes | |
| Rimas Kurtinaitis | m | Olympic Medalists | |
| Ivica Kurtini | m | Olympic Medalists | |
| Frank Kurtz | m | Olympic Medalists | |
| Walter Kurtz | m | Fictional Characters from Movies | |
| Raisa Kurvyakova | f | Olympic Medalists | |
| Yayoi Kusama | f | Notable Artists | |
| Polykarp Kusch | m | Nobel Prize Winners, Notable Scientists and Inventors | |
| Walter Kusch | m | Olympic Medalists | |
| Tri Kushanjanto | m | Olympic Medalists | |
| Janusz Kusociński | m | Olympic Medalists | |
| György Kutasi | m | Olympic Medalists | |
| Fela Kuti | m | Notable Musicians | |
| Vladimir Kuts | m | Olympic Medalists | |
| Yuriy Kutsenko | m | Olympic Medalists | |
| Mikhail Kutuzov | m | Notable Military Figures | |
| Natalia Kutuzova | f | Olympic Medalists | |
| Takao Kuwamoto | m | Olympic Medalists | |
| Olga Kuzenkova | f | Olympic Medalists | |
| Olga Kuzhela | f | Olympic Medalists | |
| Marina Kuzina | f | Olympic Medalists | |
| Svetlana Kuzina | f | Olympic Medalists | |
| Simon Kuznets | m | Nobel Prize Winners, Notable Philosophers and Thinkers | |
| Nikolai Kuznetsov | m | Olympic Medalists | |
| Vasili Kuznetsov | m | Olympic Medalists | |
| Viktor Kuznetsov | m | Olympic Medalists | |
| Vladimir Kuznetsov | m | Olympic Medalists | |
| Nataliya Kuznetsova-Lobanova | f | Olympic Medalists | |
| Illya Kvasha | m | Olympic Medalists | |
| Kornelija Kvesić | f | Olympic Medalists | |
| Khatuna Kvrivishvili | f | Olympic Medalists | |
| Daniel Kwan | m | Oscar Award Winners | |
| Michelle Kwan | f | Olympic Medalists | |
| Maria Kwaśniewska-Maleszewska | f | Olympic Medalists | |
| Agatha Kwon Chin-i | f | Saints | |
| Kwon "BoA" Bo-ah | f | Notable Musicians | |
| Kwon Hyuk | m | Olympic Medalists | |
| Kwon "G-Dragon" Ji-yong | m | Notable Musicians | |
| Finn E. Kydland | m | Nobel Prize Winners | |
| Kyle | m | Hurricanes and Tropical Storms | |
| Kyle | m | Hurricanes and Tropical Storms | |
| Kyle | m | Hurricanes and Tropical Storms | |
| Cedric "the Entertainer" Kyles | m | Notable Actors and Entertainers | |
| Kyneburga of Castor | f | Saints | |
| Kyneswide of Castor | f | Saints | |
| Laadah | m | Biblical Characters | |
| Laadan | m | Biblical Characters | |
| Laadan | m | Biblical Characters | |
| Kyösti Laasonen | m | Olympic Medalists | |
| Laban | m | Biblical Characters | |
| Labdacus | m | Characters in Greek Mythology | |
| Labdacus | m | Characters in Greek Mythology | |
| Lloyd La Beach | m | Olympic Medalists | |
| Shia LaBeouf | m | Notable Actors and Entertainers | |
| Henri LaBorde | m | Olympic Medalists | |
| Labotas | m | Characters in Greek Mythology | |
| Catherine Labouré | f | Saints | |
| Labraid Loingsech | m | Characters in Celtic Mythology, Irish Kings | |
| Benoît-Joseph Labré | m | Saints | |
| Labros | m | Characters in Greek Mythology | |
| Lacaena | f | Characters in Greek Mythology | |
| Jacques Lacan | m | Notable Philosophers and Thinkers | |
| Lacedaemon | m | Characters in Greek Mythology | |
| Lacestades | m | Characters in Greek Mythology | |
| Brian Lacey | m | Saints | |
| William Lacey | m | Saints | |
| Elmer Lach | m | Hall-of-Famers, Most Valuable Players, Notable Athletes | |
| Lachesis | f | Characters in Greek Mythology | |
| Gary Lachman | m | Rock and Roll Hall-of-Famers | |
| Lachne | f | Characters in Greek Mythology | |
| Lacinius | m | Characters in Greek Mythology | |
| Camilla Läckberg | f | Notable Writers | |
| Ethel Lackie | f | Olympic Medalists | |
| Jacobus Lacobs | m | Saints | |
| Lacon | m | Characters in Greek Mythology | |