| Name | Nation | Sport | Games | Notes |
|---|
| Adil Kaaba | Morocco | Judo | 1996 Summer | |
| Kaido Kaaberma | Estonia | Fencing | 1992 Summer, 1996 Summer, 2000 Summer | |
| Hichem Kaabi | Tunisia | Volleyball | 2012 Summer | |
| Khaled Al-Kaabi | United Arab Emirates | Shooting | 2016 Summer | |
| Mohamed Al-Kaabi | Qatar | Sailing | 1988 Summer | |
| Tammie Kaae | Guam | Swimming | 1992 Summer | |
| Kari Kaaja | Finland | Modern pentathlon | 1964 Summer | |
| Abed Rahman Kaaki | Lebanon | Swimming | 2004 Summer | |
| Veijo Kaakinen | Finland | Shooting | 1948 Summer | |
| Anna Kaaleste | Soviet Union | Cross country skiing | 1956 Winter | |
| Mikhail Kaaleste | Canoe sprint | 1956 Summer | |
| Arie Kaan | Netherlands | Athletics | 1928 Summer | |
| Thijs Kaanders | Field hockey | 1972 Summer | |
| Gaston Kaanen | Belgium | Fencing | 1928 Summer | |
| Vello Kaaristo | Estonia | Cross country skiing | 1936 Winter | |
| Harald Kaarmann | Football | 1924 Summer | |
| Leena Kaarna | Finland | Athletics | 1964 Summer | |
| Erling Kaas | Norway | 1948 Summer, 1952 Summer | |
| Paal Kaasen | Sailing | 1920 Summer | |
| Kaidy Kaasiku [ Wikidata ] | Estonia | Cross country skiing | 2022 Winter | |
| Keidy Kaasiku [ Wikidata ] | 2022 Winter | |
| Brahim Kaazouzi | Morocco | Athletics | 2016 Summer | |
| Bangaly Kaba | France | Basketball | 1984 Summer | |
| Sekou Kaba | Canada | Athletics | 2016 Summer | |
| Alina Kabaeva | Russia | Rhythmic gymnastics | 2000 Summer, 2004 Summer | |
| Mitko Kabakov | Bulgaria | Sailing | 1980 Summer | |
| Ștefan Kaban | Romania | Shooting | 1968 Summer, 1976 Summer | |
| Aleksandr Kabanov | Soviet Union | Water polo | 1972 Summer, 1976 Summer, 1980 Summer | |
| Andrey Kabanov | Russia | Canoe sprint | 1996 Summer | |
| Vyacheslav Kabanov | Uzbekistan | Swimming | 1996 Summer | |
| Sofiya Kabanova | Athletics | 2000 Summer | |
| Wakana Kabasawa | Japan | 2024 Summer | |
| Maxim Kabatskiy | Russian Olympic Committee | Shooting | 2020 Summer | |
| Matthew Kabayama | Japan | Ice hockey | 1998 Winter | |
| Munzer Kabbara | Lebanon | Swimming | 2020 Summer | |
| Robert Kabbas | Australia | Weightlifting | 1976 Summer, 1980 Summer, 1984 Summer | |
| Samsudeen Kabeer | India | 1996 Summer | |
| Michal Kabelka | Slovakia | Athletics | 2012 Summer | |
| Constantin Kabemba | Democratic Republic of the Congo | Road cycling | 1968 Summer | |
| Danièle Kaber | Luxembourg | Athletics | 1988 Summer | |
| František Kaberle | Czech Republic | Ice hockey | 2006 Winter | |
| František Kaberle Sr. | Czechoslovakia | 1980 Winter | |
| Tomáš Kaberle | Czech Republic | 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter | |
| Mohamed Kabil | Egypt | Football | 1952 Summer | |
| Glenn Kable | Fiji | Shooting | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Ilya Kablukov | Russian Olympic Committee | Ice hockey | 2018 Winter | |
| Serge Kabongo | Democratic Republic of the Congo | Boxing | 1988 Summer | |
| Idrissa Kabore | Burkina Faso | 1996 Summer | |
| Endre Kabos | Hungary | Fencing | 1932 Summer, 1936 Summer | |
| Carole Kaboud Mebam | Cameroon | Athletics | 2004 Summer, 2008 Summer | |
| Jan Kabrhel | Czechoslovakia | Rowing | 1980 Summer, 1988 Summer, 1992 Summer | |
| Winfred Kabunda | Zambia | Boxing | 1980 Summer | |
| Gilbert Kaburu | Uganda | Swimming | 2008 Summer | |
| Geoff Kabush | Canada | Cycling mountain bike | 2000 Summer, 2008 Summer, 2012 Summer | |
| George Kabuto | Uganda | Boxing | 1980 Summer | |
| Gojko Kačar | Serbia | Football | 2008 Summer | |
| Slobodan Kačar | Yugoslavia | Boxing | 1980 Summer | |
| Tadija Kačar | 1976 Summer | |
| Mohamed Kacemi | Algeria | Athletics | 1972 Summer | |
| Noureddine Kacemi | Morocco | Football | 2000 Summer | |
| Nataliya Kachalka | Ukraine | Road cycling | 2004 Summer | |
| Yulia Kachalova | Russia | Canoe sprint | 2012 Summer | |
| Daria Kachanova | Russian Olympic Committee | Speed skating | 2022 Winter | |
| Vazha Kacharava | Soviet Union | Volleyball | 1964 Summer | |
| An-Li Kachelhoffer | South Africa | Road cycling | 2016 Summer | |
| Charles Kachenjela | Zambia | Athletics | 1980 Summer | |
| Khristo Kachev | Bulgaria | Equestrian jumping | 1980 Summer | |
| Benamar Kachkouche | Algeria | Athletics | 1984 Summer | |
| David Kaci | Table tennis | 2000 Summer | |
| Hrvoje Kačić | Yugoslavia | Water polo | 1956 Summer, 1960 Summer | |
| Zoran Kačić | 1976 Summer | |
| Tadeusz Kacik | Poland | Ice hockey | 1972 Winter | |
| Lina Kačiušytė | Soviet Union | Swimming | 1980 Summer | |
| Andrzej Kącki | Poland | Handball | 1980 Summer | |
| Václav Kacl | Czechoslovakia | Diving | 1936 Summer | |
| Krystyna Kacperczyk | Poland | Athletics | 1972 Summer | |
| Paweł Kacprowski | Sailing | 2000 Summer | |
| Zita Kácser | Hungary | Athletics | 2020 Summer | |
| Sándor Kacskó | Shooting | 1992 Summer | |
| Gréta Kácsor | Handball | 2024 Summer | |
| Ágnes Kaczander | Swimming | 1972 Summer | |
| Janina Kaczkowska | Poland | Art competitions | 1928 Summer | |
| Justyna Kaczkowska | Track cycling | 2016 Summer | |
| Jerzy Kaczkowski | Weightlifting | 1964 Summer | |
| Adam Kaczmarek | Shooting | 1988 Summer, 1992 Summer | |
| Jerzy Kaczmarek | Fencing | 1972 Summer | |
| Łukasz Kaczmarek | Volleyball | 2020 Summer, 2024 Summer | |
| Marcin Kaczmarek | Swimming | 2000 Summer | |
| Natalia Bukowiecka | Athletics | 2020 Summer, 2024 Summer | |
| Paweł Kaczmarek | Canoe sprint | 2016 Summer | |
| Zbigniew Kaczmarek | Weightlifting | 1972 Summer, 1976 Summer, 1980 Summer | |
| Beata Kaczmarska | Athletics | 1992 Summer | |
| Joanna Kaczor | Volleyball | 2008 Summer | |
| Rafał Kaczor | Boxing | 2008 Summer | |
| Tomasz Kaczor | Canoe sprint | 2012 Summer, 2016 Summer | |
| Paweł Kaczorowski | Track cycling | 1972 Summer | |
| Aleksandra Kaczyńska | Rowing | 1976 Summer, 1980 Summer | |
| Yolande Kada-Gango | Republic of the Congo | Handball | 1980 Summer | |
| František Kadaňka | Czechoslovakia | Canoe slalom | 1972 Summer | |
| Kálmán Kádár | Romania | Water polo | 2012 Summer | |
| Géza Kádas | Hungary | Swimming | 1948 Summer, 1952 Summer | |
| Caryn Kadavy | United States | Figure skating | 1988 Winter | |
| Jaroslav Kadavý | Czechoslovakia | Cross country skiing, Nordic combined | 1948 Winter | |
| Hassan Kaddah | Egypt | Handball | 2020 Summer | |
| Dalia Kaddari | Italy | Athletics | 2020 Summer, 2024 Summer | |
| Adnan Kaddour | Syria | Boxing | 1996 Summer | |
| Badr El Kaddouri | Morocco | Football | 2004 Summer | |
| Omar El Kaddouri | 2012 Summer | |
| Gerda van der Kade-Koudijs | Netherlands | Athletics | 1948 Summer | |
| Achim Kadelbach | Germany | Sailing | 1960 Summer | |
| Hans Kadelbach | 1952 Summer | |
| Kathrin Kadelbach | 2012 Summer | |
| Ulli Kaden | East Germany | Boxing | 1988 Summer | |
| Anouar Abdul Kader | Syria | Football | 1980 Summer | |
| Daniela Kadeva | Bulgaria | Biathlon | 2018 Winter, 2022 Winter | |
| Jameel Kadhem | Bahrain | Road cycling | 1992 Summer | |
| Ahmed Kadhi | Tunisia | Volleyball | 2012 Summer, 2020 Summer | |
| Ali Kadhim | Iraq | Football | 1980 Summer | |
| Hassan Kadhim | Athletics | 1980 Summer | |
| Mourad Kadi | Algeria | Boxing | 2024 Summer | |
| Rebekka Kadijk | Netherlands | Beach volleyball | 2000 Summer, 2004 Summer, 2008 Summer | |
| Tshibalabala Kadima | Democratic Republic of the Congo | Boxing | 1988 Summer | |
| Mahamedkhabib Kadzimahamedau | Belarus, Independent Olympians | Wrestling | 2020 Summer, 2024 Summer | |
| Nazar Kadir | Iraq | Weightlifting | 1992 Summer | |
| Slawee Kadir | Hong Kong | Field hockey | 1964 Summer | |
| Syed Abdul Kadir | Singapore | Boxing | 1972 Summer | |
| Taalaibek Kadiraliev | Kyrgyzstan | 2000 Summer | |
| Fanuza Kadirova | Russian Olympic Committee | Ice hockey | 2018 Winter, 2022 Winter | |
| Kledi Kadiu | Albania | Swimming | 2020 Summer | |
| Arnold Kadlec | Czechoslovakia | Ice hockey | 1980 Winter, 1984 Winter | |
| Drahomír Kadlec | Czechoslovakia, Czech Republic | 1992 Winter, 1994 Winter | |
| Milan Kadlec | Czechoslovakia | Modern pentathlon | 1980 Summer, 1988 Summer | |
| Milan Kadlec | Czech Republic | Track cycling | 2004 Summer, 2008 Summer | |
| Vladimir Kadlec | West Germany | Basketball | 1984 Summer | |
| Jiřina Kadlecová | Czechoslovakia | Field hockey | 1980 Summer | |
| Marta Kadlecová | Swimming | 1960 Summer | |
| Ida Kadlec | Austria | Artistic gymnastics | 1952 Summer | |
| Juraj Kadnár | Czechoslovakia, Slovakia | Canoe sprint | 1992 Summer, 1996 Summer | |
| Ľubomír Kadnár | Czechoslovakia | 1972 Summer | |
| Horst Kadner | Germany | Shooting | 1960 Summer | |
| Hiroshi Kado | Japan | Wrestling | 1996 Summer | |
| Maria Kadobina | Belarus | Rhythmic gymnastics | 2016 Summer | |
| Filiz Kadoğan | Turkey | Athletics | 2004 Summer | |
| Kaoru Kadohara | Japan | Football | 1996 Summer | |
| Yoshinori Kadonaga | Swimming | 1964 Summer | |
| Yuki Kadono | Snowboarding | 2014 Winter | |
| Yuki Kadono | Water polo | 2016 Summer | |
| Yoshimitsu Kadowaki | Bobsleigh | 1980 Winter | |
| Kazuko Kadoya | Basketball | 1976 Summer | |
| Mahmoud Kadri | Egypt | Swimming | 1936 Summer | |
| Imade Kadro | Syria | Weightlifting | 1980 Summer | |
| Yevgeny Kadyaykin | Soviet Union | Athletics | 1956 Summer | |
| Gülnabat Kadyrowa | Turkmenistan | Weightlifting | 2016 Summer | |
| Łukasz Kadziewicz | Poland | Volleyball | 2004 Summer, 2008 Summer | |
| Stanisław Kądziołka | Military ski patrol | 1924 Winter | |
| Andrzej Kądziołka | Ice hockey | 1988 Winter, 1992 Winter | |
| Robert Kaehler | United States | Rowing | 1992 Summer, 1996 Summer, 2000 Summer | |
| Anna Kael | Hungary | Artistic gymnastics | 1928 Summer | |
| Pierre Kaempff | Luxembourg | Bobsleigh | 1928 Winter | |
| Mort Kaer | United States | Athletics | 1924 Summer | |
| Yumi Kaeriyama | Japan | Speed skating | 1992 Winter | |
| Gert Kærlin | Denmark | Athletics | 1972 Summer | |
| Werner Kaessmann | West Germany | Field hockey | 1972 Summer, 1976 Summer | |
| Andy Kaestner | United States | Athletics | 1988 Summer | |
| Amornrat Kaewbaidhoon | Thailand | Archery | 1976 Summer | |
| Siripon Kaewduang-ngam | Sailing | 2016 Summer, 2020 Summer | |
| Dulyawat Kaewsriyong [ Wikidata ] | Swimming | 2024 Summer | |
| Ali El-Kaf | Egypt | Football | 1936 Summer | |
| Josipa Kafadar | Canada | Taekwondo | 2024 Summer | |
| Dimitra Kafalidou | Greece | Rhythmic gymnastics | 2008 Summer | |
| Willi Kafel | Austria | Artistic gymnastics | 1960 Summer | |
| Yevgeny Kafelnikov | Russia | Tennis | 2000 Summer | |
| Karoline Käfer | Austria | Athletics | 1972 Summer, 1980 Summer | |
| Ioanna Kafetzi | Greece | 2004 Summer | |
| Ilias Kafetzis | 1896 Summer | |
| Dimitrios Kaffatos | Handball | 2004 Summer | |
| Imre Kaffka | Hungary | Rowing | 1952 Summer | |
| Bose Kaffo | Nigeria | Table tennis | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Ilunga Kafila | Democratic Republic of the Congo | Athletics | 1992 Summer | |
| Hana Kafková | Czechoslovakia | Rowing | 1992 Summer | |
| Tommy Kafri | Israel | Athletics | 2000 Summer | |
| Muenge Kafuanka | Democratic Republic of the Congo | Boxing | 1984 Summer | |
| Ichiro Kaga | Japan | Athletics | 1920 Summer | |
| Yoko Kagabu | Volleyball | 1984 Summer | |
| Moussa Kagambega | Burkina Faso | Boxing | 1988 Summer | |
| Yuka Kagami | Japan | Wrestling | 2024 Summer | |
| Shinji Kagawa | Football | 2008 Summer | |
| Daan Kagchelland | Netherlands | Sailing | 1936 Summer | |
| Uwe Kagelmann | East Germany | Figure skating | 1972 Winter, 1976 Winter | |
| Hiromichi Kageyama | Japan | Volleyball | 1988 Summer | |
| Yuzo Kageyama | Equestrian jumping | 1960 Summer, 1964 Summer | |
| Mads Kaggestad | Norway | Road cycling | 2004 Summer | |
| Albert Kägi | Switzerland | Track cycling | 1936 Summer | |
| Gottfried Kägi | Skeleton | 1948 Winter | |
| Markus Kägi | Luge | 1980 Winter | |
| Pavlos Kagialis | Greece | Sailing | 2016 Summer, 2020 Summer | |
| Charles Kagimu | Uganda | Road cycling | 2024 Summer | |
| Joseph Kagimu | Field hockey | 1972 Summer | |
| Masakazu Kagiyama | Japan | Figure skating | 1992 Winter, 1994 Winter | |
| Yuma Kagiyama | 2022 Winter | |
| Danny Kah | Australia | Speed skating | 1988 Winter, 1992 Winter, 1994 Winter | |
| John Kah | Short track speed skating | 1992 Winter | |
| Maksim Kahan | Israel | Shooting | 1964 Summer | |
| Nathan Kahan | Belgium | Athletics | 2000 Summer | |
| Duke Kahanamoku | United States | Swimming, Water polo | 1912 Summer, 1920 Summer, 1924 Summer | |
| Samuel Kahanamoku | Swimming | 1924 Summer | |
| Jasmin Kähärä | Finland | Cross country skiing | 2022 Winter | |
| Nuri Kaheil [ Wikidata ] | Libya | Road cycling | 1980 Summer | |
| Fred Kahele | United States | Swimming | 1920 Summer | |
| Uolevi Kahelin | Finland | Weightlifting | 1984 Summer | |
| Adel Al-Kahham | Kuwait | Handball | 1996 Summer | |
| Nesrine Ben Kahia | Tunisia | Table tennis | 2004 Summer | |
| Aulis Kähkönen | Finland | Swimming | 1952 Summer | |
| Heikki Kähkönen | Wrestling | 1920 Summer | |
| Helmuth Kahl | Germany | Modern pentathlon | 1928 Summer | |
| Josef Kahl | Czechoslovakia | Ski jumping | 1936 Winter | |
| Sabine Kahle | East Germany | Swimming | 1976 Summer | |
| Brad Kahlefeldt | Australia | Triathlon | 2008 Summer, 2012 Summer | |
| Birgit Kähler | Germany | Athletics | 1992 Summer | |
| Marlene Kahler | Austria | Swimming | 2020 Summer | |
| Detlef Kahlert | West Germany | Archery | 1984 Summer, 1988 Summer | |
| Ravi Kahlon | Canada | Field hockey | 2000 Summer, 2008 Summer | |
| Markus Kahma | Finland | Athletics | 1960 Summer | |
| Pentti Kahma | 1972 Summer, 1976 Summer | |
| Lydia Kahmke [ Wikidata ] | Australia | Handball | 2000 Summer | |
| Albert Kahn | United States | Art competitions | 1928 Summer | |
| Aurélien Kahn | France | Equestrian eventing | 2012 Summer | |
| Eddy Kahn | Netherlands | 1936 Summer | |
| Juan Kahnert | Argentina | Athletics | 1948 Summer | |
| Dominik Kahun | Germany | Ice hockey | 2018 Winter, 2022 Winter | |
| Hady Kahy | Lebanon | Judo | 1992 Summer | |
| Konomi Kai | Japan | Athletics | 2016 Summer | |
| Masato Kai | Volleyball | 2024 Summer | |
| Natasha Kai | United States | Football | 2008 Summer | |
| Shingo Kai | Japan | Water polo | 1984 Summer | |
| Takuya Kai | Baseball | 2020 Summer | |
| Yasuhiro Kai | Judo | 1992 Summer | |
| Filippos Kaiafas | Greece | Water polo | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Refaat Kaid | Egypt | Shooting | 1984 Summer | |
| Róbert Káid | Slovakia | Water polo | 2000 Summer | |
| Olga Kaidantzi | Greece | Athletics | 2004 Summer | |
| Willi Kaidel | Germany | Rowing | 1936 Summer | |
| Jennifer Kaido [ Wikidata ] | United States | 2008 Summer | |
| Moe Kaifuchi | Japan | Canoe slalom | 2012 Summer | |
| Nobuo Kaiho | Basketball | 1964 Summer | |
| Ayumi Kaihori | Football | 2012 Summer | |
| Maureen Kaila | El Salvador | Road cycling, Track cycling | 1996 Summer, 2000 Summer | |
| Jaakko Kailajärvi | Finland | Weightlifting | 1964 Summer, 1968 Summer, 1972 Summer, 1976 Summer | |
| Jouni Kailajärvi | 1960 Summer, 1964 Summer, 1968 Summer | |
| Tavakalo Kailes | Vanuatu | Athletics | 1996 Summer | |
| Pele Kaimana | Zambia | Football | 1980 Summer | |
| Gabriella Kain | Sweden | Handball | 2012 Summer | |
| Eduard Kainberger | Austria | Football | 1936 Summer | |
| Karl Kainberger | 1936 Summer | |
| Tjebbe Kaindl [ Wikidata ] | Triathlon | 2024 Summer | |
| Aarne Kainlauri | Finland | Athletics | 1948 Summer | |
| Kalle Kainuvaara | Diving, Modern pentathlon | 1912 Summer, 1920 Summer | |
| Adolf Kainz | Austria | Canoe sprint | 1936 Summer | |
| Edda Kainz | Alpine skiing | 1964 Winter | |
| Roman Kainz | Weightlifting | 1984 Summer | |
| Simon Kainzwaldner | Italy | Luge | 2022 Winter | |
| Dainius Kairelis | Lithuania | Road cycling | 2008 Summer | |
| Kristjan Kais | Estonia | Beach volleyball | 2008 Summer | |
| Daniyar Kaisanov | Kazakhstan | Wrestling | 2020 Summer | |
| Bo Kaiser | Sweden | Sailing | 1964 Summer | |
| Daniel Kaiser | Switzerland | Wrestling | 1920 Summer | |
| Eric Kaiser | Germany | Athletics | 1996 Summer | |
| Frederick Kaiser | United States | 1912 Summer | |
| Fritz Kaiser | Liechtenstein | Judo | 1976 Summer | |
| Georges Kaiser | Switzerland | Athletics | 1972 Summer | |
| Gilbert Kaiser | Liechtenstein | Shooting | 1988 Summer | |
| Johannes Kaiser | Germany | Athletics | 1960 Summer | |
| Otto Kaiser | Austria | Figure skating | 1928 Winter | |
| Stien Kaiser | Netherlands | Speed skating | 1968 Winter, 1972 Winter | |
| Ulrike Kaiser | Liechtenstein | Judo | 2000 Summer | |
| Walter Kaiser | Austria | Rowing | 1992 Summer | |
| Walther Kaiser | Liechtenstein | Judo | 1992 Summer | |
| Willy Kaiser | Germany | Boxing | 1936 Summer | |
| Natasha Kaiser-Brown | United States | Athletics | 1992 Summer | |
| Paul Kaisermann [ Wikidata ] | France | Swimming | 1900 Summer | |
| Rumyana Kaisheva | Bulgaria | Volleyball | 1980 Summer | |
| Hannu Kaislama | Finland | Boxing | 1980 Summer | |
| Hassan El-Kaissi | Lebanon | Weightlifting | 1988 Summer, 1992 Summer | |
| Yazid Kaïssi | Morocco | Football | 2004 Summer | |
| Sani Kaita | Nigeria | 2008 Summer | |
| Daisy Kaitano | Zimbabwe | 2016 Summer | |
| Walter Kaitna | Austria | Field hockey | 1952 Summer | |
| Masaki Kaito | Japan | Volleyball | 1988 Summer | |
| Keijiro Kaitoku | Sailing | 1952 Summer | |
| Pihla Kaivo-oja | Finland | Boxing | 2024 Summer | |
| Toshihiro Kaiwa | Japan | Alpine skiing | 1980 Winter, 1984 Winter | |
| Eta Kaize | Indonesia | Beach volleyball | 1996 Summer | |
| Sun Kaizhi [ Wikidata ] | China | Bobsleigh | 2022 Winter | |
| Balázs Kaizinger | Hungary | Equestrian eventing | 2024 Summer | |
| Iakobi Kajaia | Georgia | Wrestling | 2016 Summer, 2020 Summer | |
| Mikheil Kajaia | Serbia | 2020 Summer, 2024 Summer | |
| Andrus Kajak | Estonia | Fencing | 1996 Summer, 2000 Summer | |
| Uno Kajak | Soviet Union | Nordic combined | 1956 Winter | |
| Selma Kajan | Australia | Athletics | 2016 Summer | |
| Väinö Kajander | Finland | Wrestling | 1932 Summer | |
| Mila Kajas | Figure skating | 1994 Winter | |
| Ola Kajbjer | Sweden | Fencing | 1988 Summer, 1992 Summer | |
| Cris Kajd | Shooting | 1984 Summer, 1988 Summer, 1992 Summer | |
| János Kajdi | Hungary | Boxing | 1964 Summer, 1968 Summer, 1972 Summer | |
| Yukari Kajihara | Japan | Fencing | 1976 Summer | |
| Yumi Kajihara | Track cycling | 2020 Summer, 2024 Summer | |
| Hiroshi Kajikawa | Archery | 1972 Summer | |
| Takayoshi Kajikawa | Swimming | 1952 Summer | |
| Marin Kajiki | Rugby sevens | 2020 Summer, 2024 Summer | |
| Nobuyuki Kajitani | Artistic gymnastics | 1984 Summer | |
| Hiroshi Kajiyama | 1976 Summer | |
| Yōhei Kajiyama | Football | 2008 Summer | |
| Yoshihiko Kajiyama [ Wikidata ] | Baseball | 2000 Summer | |
| Andrew Kajjo | Uganda | Boxing | 1968 Summer | |
| Milan Kajkl | Czechoslovakia | Ice hockey | 1976 Winter | |
| Marjatta Kajosmaa | Finland | Cross country skiing | 1968 Winter, 1972 Winter, 1976 Winter | |
| Amina Kajtaz | Bosnia and Herzegovina | Swimming | 2016 Summer | |
| Jolanta Kajtoch | Poland | Athletics | 2008 Summer | |
| Robert Kajuga | Rwanda | 2012 Summer | |
| Herbert Kajumba | Uganda | Field hockey | 1972 Summer | |
| Vladimir Kajzelj | Yugoslavia | Cross country skiing | 1924 Winter | |
| Kaja Kajzer | Slovenia | Judo | 2020 Summer, 2024 Summer | |
| Róża Kajzer | Poland | Swimming | 1928 Summer | |
| Marian Kajzerek | Ice hockey | 1976 Winter | |
| Gillies Kaka | New Zealand | Rugby sevens | 2016 Summer | |
| Shiray Kaka | 2020 Summer | |
| Abdolkarim Kakahaji | Iran | Wrestling | 1988 Summer | |
| Konstantinos Kakaris | Greece | Water polo | 2024 Summer | |
| Gyula Kakas | Hungary | Artistic gymnastics | 1896 Summer, 1900 Summer | |
| Peter Kakaščík | Czechoslovakia | Handball | 1992 Summer | |
| Anne Kakela | United States | Rowing | 1996 Summer | |
| Kakhi Kakhiashvili | Unified Team, Greece | Weightlifting | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Aslan Kakhidze | Kazakhstan | Wrestling | 2016 Summer | |
| Fanat Kakhramonov | Uzbekistan | Boxing | 2020 Summer | |
| Abubaker Kaki Khamis | Sudan | Athletics | 2008 Summer, 2012 Summer | |
| Paweł Kakietek | Poland | Boxing | 2000 Summer | |
| Isao Kakihara | Japan | Ice hockey | 1972 Winter | |
| Takashi Kakihara | 1960 Winter | |
| Reika Kakiiwa | Badminton | 2012 Summer | |
| Maria Kakiou | Greece | Rhythmic gymnastics | 2004 Summer | |
| Winzar Kakiouea | Nauru | Athletics | 2024 Summer | |
| Lefteris Kakiousis | Greece | Basketball | 1996 Summer | |
| Michalis Kakiouzis | 2004 Summer | |
| Haluk Kakış | Turkey | Sailing | 1964 Summer | |
| İbrahim Kakış | 1988 Summer | |
| Selim Kakış | 2004 Summer | |
| Akio Kakishita | Japan | Rowing | 1976 Summer | |
| Maho Kakita | Track cycling | 2024 Summer | |
| Roope Kakko | Finland | Golf | 2016 Summer | |
| Horst Kakl | Austria | Ice hockey | 1964 Winter | |
| Nikolaos Kaklamanakis | Greece | Sailing | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Adrianna Kąkol | Poland | Canoe sprint | 2024 Summer | |
| Agnieszka Korneluk | Volleyball | 2024 Summer | |
| Shai Kakon | Israel | Sailing | 2020 Summer, 2024 Summer | |
| John Kakooza | Uganda | Boxing | 1984 Summer | |
| Jindřich Kakos | Czechoslovakia | Fencing | 1948 Summer | |
| Periklis Kakousis | Greece | Tug of war, Weightlifting | 1904 Summer | |
| Blessing Kaku | Nigeria | Football | 2000 Summer | |
| Fusako Kakumaru | Japan | Diving | 1976 Summer | |
| Fujio Kakuta | Artistic gymnastics | 1932 Summer, 1936 Summer | |
| Koji Kakuta | Ski jumping | 1976 Winter | |
| Miraç Kal | Turkey | Road cycling | 2012 Summer | |
| Risto Kala | Finland | Basketball | 1964 Summer | |
| Nikola Kalabić | Serbia and Montenegro | Swimming | 1996 Summer, 2000 Summer | |
| Aslı Kalaç | Turkey | Volleyball | 2024 Summer | |
| Alexandre Kalache | Brazil | 1972 Summer, 1976 Summer | |
| Valeri Kalachikhin | Soviet Union | 1964 Summer | |
| Vanesa Kaladzinskaya | Belarus | Wrestling | 2012 Summer, 2020 Summer | |
| Giorgos Kalafatis | Greece | Football | 1920 Summer | |
| Peter Kalafut | Czechoslovakia | Handball | 1992 Summer | |
| Subramani Balada Kalaiah | India | Field hockey | 1988 Summer | |
| Panagiotis Kalaitzakis | Greece | Basketball | 2024 Summer | |
| Theodoros Kalakonas | Water polo | 1996 Summer, 2004 Summer | |
| Souhaib Kalala | Syria | Swimming | 2008 Summer | |
| Anton Kalalb | Russian Olympic Committee | Curling | 2022 Winter | |
| Thelma Kalama | United States | Swimming | 1948 Summer | |
| Kaiser Kalambo | Zambia | Football | 1980 Summer | |
| Georgios Kalambokidis | Greece | Sailing | 1948 Summer | |
| Siarhei Kalamoyets | Belarus | Athletics | 2016 Summer | |
| Mohammad Jafar Kalani | Iran | Shooting | 1964 Summer | |
| Yelyzaveta Kalanina | Ukraine | Judo | 2020 Summer | |
| Zoe Kalapos | United States | Snowboarding | 2022 Winter | |
| Ioannis Kalargaris | Greece | Swimming | 2012 Summer | |
| Josef Kalaš | Czechoslovakia | Rowing | 1948 Summer | |
| Andriy Kalashnikov | Ukraine | Wrestling | 1996 Summer, 2000 Summer | |
| Nikolay Kalashnikov | Soviet Union | Water polo | 1964 Summer | |
| Wilfrid Kalaugher | New Zealand | Athletics | 1928 Summer | |
| Valter Kalaus | Hungary | Swimming | 1988 Summer | |
| Teodoro Kalaw III | Philippines | Shooting | 1972 Summer | |
| Hans Kalb | Germany | Football | 1928 Summer | |
| Jürgen Kalb | West Germany | 1972 Summer | |
| Janusz Kalbarczyk | Poland | Speed skating | 1936 Winter | |
| Frederik Kalbermatten | Switzerland | Snowboarding | 2006 Winter | |
| John Kalbhenn | Canada | Boxing | 1984 Summer | |
| Mahmoud Kalboussi | Tunisia | Athletics | 1988 Summer, 1992 Summer | |
| Denislav Kalchev | Bulgaria | Swimming | 1992 Summer, 1996 Summer | |
| Khristina Kalcheva | Athletics | 2000 Summer | |
| Proletina Kalcheva [ Wikidata ] | Rhythmic gymnastics | 2000 Summer | |
| Georgios Kaldis | Greece | Boxing | 1928 Summer | |
| Martten Kaldvee | Estonia | Biathlon | 2010 Winter | |
| Urmas Kaldvee | 1992 Winter, 1994 Winter | |
| Zoltán Káldy | Hungary | Athletics | 1992 Summer, 1996 Summer | |
| Nikša Kaleb | Croatia | Handball | 2004 Summer | |
| Zoran Kalebić | Yugoslavia | Sailing | 1980 Summer | |
| Christopher Kalec | Canada | Diving | 2000 Summer, 2004 Summer | |
| Nedim Kaleci | Turkey | Football | 1924 Summer | |
| Mohamed Al-Kaledi | Kuwait | 1992 Summer | |
| Birutė Kalėdienė | Soviet Union | Athletics | 1960 Summer, 1964 Summer | |
| Muhammad Danish Kaleem | Pakistan | Field hockey | 1996 Summer | |
| Douglas Kalembo | Zambia | Athletics | 1988 Summer | |
| Irina Kalentieva | Russia | Cycling mountain bike | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Dimitra Kalentzou | Greece | Basketball | 2004 Summer | |
| Leopold Kalesaran | Indonesia | Sailing | 1960 Summer | |
| Sergey Kalesnik | Soviet Union, Unified Team, Belarus | Canoe sprint | 1988 Summer, 1992 Summer, 1996 Summer | |
| Grzegorz Kaleta | Poland | 1992 Summer, 1996 Summer | |
| Weronika Kaleta [ Wikidata ] | Cross country skiing | 2022 Winter | |
| Alexander Kaletchitz | United States | Boxing | 1928 Summer | |
| Ivaylo Kalev | Bulgaria | Ice hockey | 1976 Winter | |
| Sean Kaley | Canada | Athletics | 2000 Summer | |
| Boryana Kaleyn | Bulgaria | Rhythmic gymnastics | 2020 Summer, 2024 Summer | |
| Christophe Kalfayan | France | Swimming | 1988 Summer, 1992 Summer, 1996 Summer | |
| Jürgen Kalfelder | Germany | Athletics | 1964 Summer | |
| Bagher Kalhor | Iran | Alpine skiing | 2002 Winter | |
| Ghorban Ali Kalhor | 1972 Winter, 1976 Winter | |
| Marjan Kalhor | 2010 Winter | |
| Mohammad Kalhor | 1976 Winter | |
| Wavala Kali | Papua New Guinea | Athletics | 1976 Summer | |
| Denis Kaliberda | Germany | Volleyball | 2012 Summer | |
| Kim Kalicki | Bobsleigh | 2022 Winter | |
| Murat Kalikulov | Uzbekistan | Judo | 2004 Summer | |
| Akbar Kalili | Iran | Alpine skiing | 1976 Winter | |
| Maiola Kalili | United States | Swimming | 1932 Summer | |
| Manuella Kalili | 1932 Summer | |
| Uran Kalilov | Kyrgyzstan | Wrestling | 2000 Summer, 2004 Summer | |
| Mohammed Dramani Kalilu | Ghana | Football | 1992 Summer | |
| Lauri Kalima | Finland | Athletics | 1936 Summer | |
| Irina Kalimbet | Soviet Union | Rowing | 1988 Summer | |
| Godwin Kalimbwe | Zambia | Athletics | 1968 Summer | |
| Arnaud Kalimuendo | France | Football | 2024 Summer | |
| Alfred Kälin | Switzerland | Cross country skiing | 1972 Winter, 1976 Winter | |
| Alois Kälin | Cross country skiing, Nordic combined | 1964 Winter, 1968 Winter, 1972 Winter | |
| Annik Kälin | Athletics | 2024 Summer | |
| Franz Kälin | Cross country skiing | 1964 Winter, 1968 Winter | |
| Nadja Kälin | 2022 Winter | |
| Stefan Kälin | Alpine skiing | 1964 Winter, 1968 Winter | |
| Urs Kälin | 1992 Winter, 1994 Winter, 1998 Winter | |
| Čestmír Kalina | Czechoslovakia | Athletics | 1948 Summer | |
| Jozef Kalina | Basketball | 1948 Summer | |
| Milan Kalina | Yugoslavia | Handball | 1984 Summer | |
| Liudmila Kalinchik | Belarus | Biathlon | 2010 Winter, 2014 Winter | |
| Ekaterina Kalinchuk | Soviet Union | Artistic gymnastics | 1952 Summer | |
| Nikola Kalinić | Serbia | Basketball | 2016 Summer | |
| Zoran Kalinić | Yugoslavia, Independent Olympians | Table tennis | 1988 Summer, 1992 Summer | |
| Vitaliy Kalinichenko | Ukraine | Ski jumping | 2022 Winter | |
| Dmitri Kalinin | Russia | Ice hockey | 2010 Winter | |
| Konstantin Kalinin [ Wikidata ] | Shooting | 1912 Summer | |
| Sergei Kalinin | Soviet Union | 1960 Summer, 1964 Summer | |
| Sergey Kalinin | Russian Olympic Committee | Ice hockey | 2018 Winter | |
| Viktor Kalinin | Soviet Union | Equestrian eventing | 1976 Summer | |
| Yury Kalinin | Ski jumping | 1972 Winter, 1976 Winter | |
| Ganna Kalinina | Ukraine | Sailing | 2004 Summer | |
| Irina Kalinina | Soviet Union | Diving | 1976 Summer, 1980 Summer | |
| Victoriya Kalinina | Russia, Russian Olympic Committee | Handball | 2016 Summer, 2020 Summer | |
| Anton Kalinitschenko | Russia | Ski jumping | 2002 Winter | |
| Mario Kalinke | Germany | Weightlifting | 1996 Summer | |
| Ľubomíra Kalinová | Slovakia | Biathlon | 2010 Winter | |
| Alexandra Kalinovská | Czech Republic | Modern pentathlon | 2004 Summer | |
| Yuliya Kalinovskaya | Russia | Rowing | 2004 Summer, 2008 Summer | |
| Dmitry Kalinovsky | Belarus | Swimming | 1996 Summer, 2000 Summer | |
| Konstantin Kalinovsky | Nordic combined | 1998 Winter | |
| Anetta Kalinowski | West Germany | Shooting | 1988 Summer | |
| Komlan Kalipe | Togo | Boxing | 1972 Summer | |
| Viktor Kalisch | Austria | Canoe sprint | 1936 Summer | |
| Elena Kaliská | Slovakia | Canoe slalom | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Marcela Kalistová | Basketball | 2000 Summer | |
| Konstantin Kalistratov | Unified Team | Speed skating | 1992 Winter | |
| Chase Kalisz | United States | Swimming | 2016 Summer, 2020 Summer, 2024 Summer | |
| Bo Kaliszan | Denmark | Rowing | 2000 Summer | |
| Natalia Kaliszek | Poland | Figure skating | 2018 Winter, 2022 Winter | |
| Ivan Kalita | Soviet Union | Equestrian dressage | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer, 1976 Summer | |
| Viktoriia Kaliuzhna | Ukraine | Athletics | 2020 Summer | |
| Volodymyr Kaliuzhniy | Fencing | 1996 Summer, 2000 Summer, 2004 Summer | |
| Tanya Kalivas | Greece | Football | 2004 Summer | |
| Sholpan Kaliyeva | Kazakhstan | Judo | 2004 Summer, 2008 Summer | |
| Elmar Kaljot | Estonia | Football | 1924 Summer | |
| Klen-Kristofer Kaljulaid [ Wikidata ] | Judo | 2024 Summer | |
| Anu Kaljurand | Athletics | 1992 Summer | |
| Maggie Kalka | Finland | Fencing | 1952 Summer | |
| Patrick van Kalken | Netherlands | Judo | 2000 Summer | |
| Emilie Kalkenberg | Norway | Biathlon | 2022 Winter | |
| Gustav Kalkun | Estonia | Athletics | 1924 Summer, 1928 Summer | |
| Lars Käll | Sweden | Sailing | 1964 Summer | |
| Stig Käll | 1964 Summer | |
| Charlotte Kalla | Cross country skiing | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Damian Kallabis | Germany | Athletics | 2000 Summer | |
| Ákos Kállai | Hungary | Modern pentathlon | 2004 Summer | |
| Lipót Kállai | Football | 1936 Summer | |
| Aulis Kallakorpi | Finland | Ski jumping | 1956 Winter | |
| Khalil Kallas | Lebanon | Fencing | 1968 Summer | |
| Branko Kallay | Yugoslavia | Athletics | 1928 Summer | |
| Aarne Kallberg | Finland | 1912 Summer | |
| Anton Källberg | Sweden | Table tennis | 2020 Summer, 2024 Summer | |
| Christina Källberg | 2020 Summer, 2024 Summer | |
| Eddie Kalleklev | Norway | Canoe sprint | 1984 Summer | |
| Leontia Kallenou | Cyprus | Athletics | 2016 Summer | |
| Emily Kallfelz | United States | Rowing | 2024 Summer | |
| Monika Kallies | East Germany | 1976 Summer | |
| Alissa Kallinikou | Cyprus | Athletics | 2008 Summer | |
| Jamie Kallio | Canada | Biathlon | 1988 Winter | |
| Maarit Kallio | Finland | Judo | 2000 Summer | |
| Tomi Kallio | Ice hockey | 2002 Winter | |
| Eetu Kallioinen | Shooting | 2020 Summer, 2024 Summer | |
| Antti Kalliomäki | Athletics | 1972 Summer, 1976 Summer, 1980 Summer | |
| Jonas Källman | Sweden | Handball | 2012 Summer | |
| Bohdan Kallmünzer | Czechoslovakia | Rowing | 1920 Summer | |
| Jiří Kallmünzer | 1920 Summer | |
| Garry Kallos | Canada | Wrestling | 1984 Summer | |
| Rune Källqvist | Sweden | Water polo | 1952 Summer | |
| Arvid Källström | Art competitions | 1932 Summer, 1936 Summer | |
| Erik Källström | Football | 1936 Summer | |
| Gunnar Källström | Finland | Sailing | 1952 Summer | |
| Josef Källström | Sweden | Rowing | 2000 Summer | |
| Malin Källström | Sailing | 2012 Summer | |
| Sami Kallunki | Finland | Nordic combined | 1992 Winter | |
| Jenny Kallur | Sweden | Athletics | 2004 Summer | |
| Susanna Kallur | 2004 Summer, 2008 Summer, 2016 Summer | |
| József Kálmán | Hungary | Wrestling | 1936 Summer | |
| Ákos Kalmár | Swimming | 2020 Summer | |
| János Kalmár | Fencing | 1968 Summer | |
| Ioannis Kalmazidis | Sweden | Volleyball | 1988 Summer | |
| Christine Kalmer | South Africa | Athletics | 2016 Summer | |
| René Kalmer | 2008 Summer, 2012 Summer | |
| Margarita Kalmikova | Latvia | Swimming | 1996 Summer, 2000 Summer | |
| Valērijs Kalmikovs | 1996 Summer, 2000 Summer | |
| Megan Kalmoe | United States | Rowing | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Akmarzhan Kalmurzayeva | Kazakhstan | Freestyle skiing | 2018 Winter, 2022 Winter | |
| Maria Kalmykova | Russia | Basketball | 2004 Summer | |
| Tatyana Kalmykova | Athletics | 2008 Summer | |
| Pavla Kalná | Czech Republic | Shooting | 2008 Summer | |
| Gusztáv Kálniczky | Hungary | Fencing | 1928 Summer | |
| Mantas Kalnietis | Lithuania | Basketball | 2012 Summer, 2016 Summer | |
| Alfrēds Kalniņš | Latvia | Athletics | 1924 Summer | |
| Jānis Kalniņš | Ice hockey | 2022 Winter | |
| Juris Kalniņš | Soviet Union | Basketball | 1964 Summer | |
| Kalvis Kalniņš | Latvia | Karate | 2020 Summer | |
| Pēteris Kalniņš | Luge | 2010 Winter, 2014 Winter, 2018 Winter | |
| Uvis Kalniņš | Swimming | 2012 Summer, 2016 Summer | |
| Attila Kálnoki Kis | Hungary | Modern pentathlon | 1992 Summer | |
| Natallia Kalnysh | Ukraine | Shooting | 2000 Summer, 2004 Summer, 2008 Summer, 2016 Summer | |
| Sándor Kaló | Hungary | Handball | 1972 Summer | |
| Henrik Kalocsai | Athletics | 1964 Summer, 1968 Summer | |
| Margit Kalocsai | Artistic gymnastics | 1936 Summer | |
| Nikos Kalofiris | Greece | Cross country skiing | 1994 Winter | |
| Efstathios Kalogeropoulos | Water polo | 2024 Summer | |
| Georgios Kalogiannidis | Archery | 2004 Summer | |
| Athanassios Kalogiannis | Athletics | 1984 Summer, 1992 Summer | |
| Willy Kalombo Mwenze | Democratic Republic of the Congo | 1992 Summer, 1996 Summer, 2000 Summer | |
| Panagiotis Kalombratsos | Greece | Rowing | 1960 Summer | |
| Michael Kalomiris | Athletics | 2016 Summer | |
| Magda Kalomoirou | Alpine skiing | 2006 Winter | |
| Alaïs Kalonji [ Wikidata ] | France | Diving | 2020 Summer | |
| Ziv Kalontarov | Israel | Swimming | 2016 Summer | |
| Salomon Kalou | Ivory Coast | Football | 2008 Summer | |
| Aikaterini Kaloudi | Greece | Sailing | 1996 Summer | |
| Manthos Kaloudis | Road cycling, Track cycling | 1948 Summer | |
| Nikolaos Kaloudis | Football | 1920 Summer | |
| Nikolaos Kaloudis | Water polo | 1924 Summer | |
| Emil Kalous | Czechoslovakia | Athletics | 1924 Summer | |
| George Kalovelonis | Greece | Tennis | 1988 Summer | |
| Anikó Kálovics | Hungary | Athletics | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Arda Kalpakian | Lebanon | 1972 Summer | |
| Dorothea Kalpakidou | Greece | 2008 Summer | |
| Eino Kalpala | Finland | Alpine skiing | 1952 Winter | |
| Katri Kalpala | Rhythmic gymnastics | 1996 Summer | |
| Dieter Kalt Sr. | Austria | Ice hockey | 1964 Winter, 1968 Winter | |
| Dieter Kalt | 1994 Winter, 1998 Winter, 2002 Winter | |
| Hans Kalt | Switzerland | Rowing | 1948 Summer, 1952 Summer | |
| Josef Kalt | 1948 Summer | |
| Ulrika Kalte | Sweden | Football | 1996 Summer | |
| Hannes Kalteis | Austria | Swimming | 2000 Summer | |
| Anton Kaltenberger | Bobsleigh | 1936 Winter | |
| Dmitriy Kaltenberger | Kazakhstan | Canoe sprint | 2008 Summer | |
| Max Kaltenberger | Austria | Bobsleigh | 1968 Winter | |
| Henry Kaltenbrunn | South Africa | Road cycling, Track cycling | 1920 Summer, 1924 Summer | |
| Josef Kaltenbrunner | Austria | Football | 1912 Summer | |
| Stefan Kaltschütz | Snowboarding | 2002 Winter | |
| Manfred Kaltz | West Germany | Football | 1972 Summer | |
| Ezinne Kalu | Nigeria | Basketball | 2020 Summer, 2024 Summer | |
| Joseph Oboh Kalu | Boxing | 1960 Summer | |
| Norbert Kalucza | Hungary | 2008 Summer | |
| Erik Kalugin | Soviet Union | Canoe sprint | 1964 Summer | |
| Yelena Kalugina | Belarus | Cross country skiing | 2002 Winter | |
| Pierre Kalulu | France | Football | 2020 Summer | |
| Henry Kalunga | Zambia | Boxing | 1984 Summer | |
| Jan Kałusowski | Poland | Swimming | 2024 Summer | |
| Józef Kałuża | Football | 1924 Summer | |
| Eva Kalužáková | Czechoslovakia | Basketball | 1988 Summer | |
| Michał Kałwa | Poland | Alpine skiing | 2006 Winter | |
| Alick Kalwihzi | Zambia | Judo | 1984 Summer | |
| Lev Kalyayev | Soviet Union | Athletics | 1952 Summer | |
| Pavlo Kalynchev | Ukraine | Sailing | 2008 Summer | |
| Mohamed Gamil El-Kalyoubi | United Arab Republic, Egypt | Fencing | 1960 Summer, 1964 Summer, 1968 Summer | |
| Lesya Kalytovska | Ukraine | Track cycling | 2008 Summer, 2012 Summer | |
| Alexei Kalyuzhny | Belarus | Ice hockey | 1998 Winter, 2002 Winter, 2010 Winter | |
| Alex Kam | South Korea | Figure skating | 2018 Winter | |
| Kam Wai Leung | Hong Kong | Fencing | 1976 Summer | |
| Takeo Kamachi | Japan | Shooting | 1968 Summer, 1972 Summer, 1976 Summer, 1984 Summer | |
| Hiroko Kamada | Fencing | 1976 Summer | |
| Makoto Kamada | Wrestling | 1972 Summer | |
| Kamakazi | Australia | Cycling BMX racing | 2008 Summer | |
| Etsuko Kamakura | Japan | Diving | 1932 Summer | |
| Abubaker Ali Kamal | Qatar | Athletics | 2008 Summer | |
| Diaaeldin Kamal | Egypt | Wrestling | 2016 Summer, 2020 Summer, 2024 Summer | |
| Hassan Kamal | Iraq | Football | 1988 Summer | |
| Kerem Kamal | Turkey | Wrestling | 2020 Summer | |
| Sharath Kamal | India | Table tennis | 2004 Summer, 2008 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Syifa Nurafifah Kamal | Indonesia | Archery | 2024 Summer | |
| Ziad Kamal | Egypt | Football | 2024 Summer | |
| Albina Kamaletdinova | Tajikistan | Archery | 2008 Summer | |
| Hamdan Al-Kamali | United Arab Emirates | Football | 2012 Summer | |
| Fumio Kamamoto | Japan | Athletics | 1956 Summer | |
| Kunishige Kamamoto | Football | 1964 Summer, 1968 Summer | |
| Chris Kaman | Germany | Basketball | 2008 Summer | |
| Kasala Kamanga | Democratic Republic of the Congo | 1996 Summer | |
| Tazana Kamanga-Dyrbak | Denmark | Athletics | 2020 Summer | |
| Bayano Kamani | Panama | 2004 Summer, 2008 Summer | |
| Alexey Kamanin | Russia | Handball | 2008 Summer | |
| Sia Kamanor | Sierra Leone | Athletics | 1996 Summer | |
| Claver Kamanya | Tanzania | 1968 Summer, 1972 Summer | |
| Ahmed Kamar | Egypt | Shooting | 2016 Summer | |
| Alpha B. Kamara | Sierra Leone | Athletics | 2000 Summer | |
| Hafsatu Kamara | 2016 Summer | |
| Ismail Kamara | 2016 Summer | |
| Osman Kamara | Swimming | 2016 Summer | |
| Erkki Kämäräinen | Finland | Cross country skiing | 1924 Winter | |
| Haziq Kamaruddin | Malaysia | Archery | 2012 Summer, 2016 Summer | |
| Masaru Kamata | Japan | Athletics | 1964 Summer | |
| Mitsuo Kamata | Football | 1964 Summer, 1968 Summer | |
| Naoko Kamata | Sailing | 2008 Summer | |
| Shoji Kamata | Basketball | 1960 Summer | |
| Toshiaki Kamata | Athletics | 1976 Summer | |
| Archana Kamath | India | Table tennis | 2024 Summer | |
| Charles Kamathi | Kenya | Athletics | 2004 Summer | |
| David Kamau | Boxing | 1988 Summer | |
| John Kamau | 1964 Summer | |
| Laëtitia Kamba | France | Basketball | 2016 Summer | |
| Ioannis Kambadelis | Greece | Athletics | 1956 Summer | |
| Matthews Kambale | Malawi | 1972 Summer, 1984 Summer | |
| John-Andrew Kambanis | Greece | Bobsleigh | 1998 Winter, 2002 Winter | |
| Panagiotis Kambas | Fencing | 1912 Summer | |
| Danielle Kamber | Switzerland | Canoe slalom | 1972 Summer | |
| Eugen Kamber | Track cycling | 1948 Summer | |
| Raymond Kamber | Canoe sprint | 1952 Summer | |
| Urs Kamber | Athletics | 1980 Summer | |
| Reneta Kamberova | Bulgaria | Rhythmic gymnastics | 2012 Summer, 2016 Summer | |
| Hervé Kambou | Ivory Coast | Football | 2008 Summer | |
| Ditaji Kambundji | Switzerland | Athletics | 2020 Summer, 2024 Summer | |
| Mujinga Kambundji | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Dimitar Kamburski | Bulgaria | Rowing | 1988 Summer | |
| Zhor El Kamch | Morocco | Athletics | 2000 Summer | |
| Ali Kamé | Madagascar | 2012 Summer, 2016 Summer | |
| Wandee Kameaim | Thailand | Weightlifting | 2004 Summer, 2008 Summer | |
| Fathi Kameel | Kuwait | Football | 1980 Summer | |
| Hideaki Kamei | Japan | Fencing | 1976 Summer | |
| Shinkichi Kamei | Ice hockey | 1936 Winter | |
| Masashi Kamekawa | Football | 2016 Summer | |
| Ahmed Ibrahim Kamel | Egypt | Diving | 1936 Summer | |
| Ali Kamel | Wrestling | 1928 Summer | |
| Fahti Mohamed Kamel | Basketball | 1972 Summer, 1976 Summer | |
| Ibrahim Kamel | Wrestling | 1928 Summer | |
| Mahdi Kamil | Iraq | Football | 2016 Summer | |
| Nada Kamel | Egypt | Archery | 2012 Summer | |
| Yusuf Saad Kamel | Bahrain | Athletics | 2004 Summer, 2008 Summer | |
| Paul Kamela | Cameroon | Boxing | 1980 Summer, 1984 Summer, 1988 Summer | |
| Sue Kameli | Canada | Athletics | 1976 Summer, 1984 Summer | |
| Leonidas Kamende | Kenya | Volleyball | 2004 Summer | |
| Anton Kamenev | Russia | Nordic combined | 2006 Winter | |
| Maria Kameneva | Russian Olympic Committee | Swimming | 2020 Summer | |
| Carlos Kameni | Cameroon | Football | 2000 Summer | |
| Nina Kamenik | Germany | Ice hockey | 2014 Winter | |
| Krasimir Kamenov | Bulgaria | Luge | 1988 Winter | |
| Galina Kamenova | Rowing | 1992 Summer, 1996 Summer | |
| Alexei Kamenski | Russia | Shooting | 2012 Summer | |
| Nikolay Kamenskiy | Soviet Union | Ski jumping | 1960 Winter, 1964 Winter | |
| Sergey Kamenskiy | Russia, Russian Olympic Committee | Shooting | 2016 Summer, 2020 Summer | |
| Valeri Kamensky | Soviet Union, Russia | Ice hockey | 1988 Winter, 1998 Winter | |
| Pavel Kamentsev | Kazakhstan | 1998 Winter | |
| Valentina Kamenyok-Vinogradova | Soviet Union | Volleyball | 1964 Summer, 1968 Summer | |
| Katsuo Kameoka | Japan | Boxing | 1932 Summer | |
| Nadja Kamer | Switzerland | Alpine skiing | 2010 Winter | |
| Eef Kamerbeek | Netherlands | Athletics | 1960 Summer, 1964 Summer | |
| Henk Kamerbeek | 1924 Summer, 1928 Summer | |
| Ismo Kamesaki | Finland | Wrestling | 1992 Summer | |
| Kōhei Kameyama | Japan | Artistic gymnastics | 2020 Summer | |
| Vanessa Kamga | Sweden | Athletics | 2024 Summer | |
| Hisao Kami | Japan | Football | 1964 Summer | |
| Jiro Kamiharako | Ski jumping | 1992 Winter | |
| Yuji Kamijo | Speed skating | 2014 Winter | |
| Daiki Kamikawa | Judo | 2012 Summer | |
| Masakazu Kamimura | Wrestling | 1984 Summer | |
| Yukio Kamimura | Field hockey | 1968 Summer | |
| Akio Kaminaga | Judo | 1964 Summer | |
| Shione Kaminaga | Short track speed skating | 2018 Winter, 2022 Winter | |
| Yuka Kamino | 2002 Winter, 2006 Winter | |
| Ewa Kamińska-Eichler | Poland | Canoe sprint | 1976 Summer, 1980 Summer | |
| Eleonora Kaminskaitė | Soviet Union | Rowing | 1976 Summer | |
| Valiantsina Kaminskaya | Belarus, Ukraine | Cross country skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Victoria Kaminskaya | Portugal | Swimming | 2016 Summer | |
| Jake Kaminski | United States | Archery | 2012 Summer, 2016 Summer | |
| Jan Kamiński | Poland | Equestrian eventing | 2020 Summer, 2024 Summer | |
| Krzysztof Kamiński | Judo | 1992 Summer | |
| Mateusz Kamiński | Canoe sprint | 2016 Summer, 2020 Summer | |
| Zygmunt Kamiński | Art competitions | 1928 Summer | |
| Vladimir Kaminsky | Soviet Union | Road cycling | 1976 Summer | |
| Bengt Kamis | Sweden | Shooting | 1988 Summer | |
| Aminata Kamissoko [ Wikidata ] | Mauritania | Athletics | 2004 Summer | |
| Erina Kamiya | Japan | Speed skating | 2018 Winter | |
| Yuichiro Kamiyama | Track cycling | 1996 Summer, 2000 Summer | |
| Aleksey Kamkin | Soviet Union | Rowing | 1980 Summer | |
| Leonid Kamlochuk | Ukraine | Canoe sprint | 2000 Summer | |
| Fred Kammer | United States | Ice hockey | 1936 Winter | |
| Axel Kammerer | Germany | 1992 Winter | |
| Bernhard Kammerer | Italy | Luge | 1988 Winter | |
| Fred Kämmerer | Germany | Wrestling | 1956 Summer, 1960 Summer | |
| Hans Kämmerer | Sailing | 1960 Summer | |
| Zoltán Kammerer | Hungary | Canoe sprint | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Federico Kammerichs | Argentina | Basketball | 2008 Summer, 2012 Summer | |
| Anna-Karin Kammerling | Sweden | Swimming | 2000 Summer, 2004 Summer, 2008 Summer | |
| Walter Kammermann | Switzerland | Athletics | 1960 Summer | |
| Arno Kamminga | Netherlands | Swimming | 2020 Summer, 2024 Summer | |
| Ademar Kammler | Brazil | Athletics | 1992 Summer | |
| Anatoly Kamnev | Soviet Union | Boxing | 1972 Summer | |
| Shogo Kamo | Japan | Football | 1936 Summer | |
| Takeshi Kamo | 1936 Summer | |
| Davis Kamoga | Uganda | Athletics | 1996 Summer, 2000 Summer | |
| Giorgio Armani Nguichie Kamseu Kamogne [ Wikidata ] | Cameroon | Swimming | 2024 Summer | |
| Svetlana Kamotskaya | Belarus | Cross country skiing | 1994 Winter, 1998 Winter | |
| Viktor Kamotsky | 1994 Winter | |
| Marc Kamoun | France | Swimming | 1960 Summer | |
| Sophie Kamoun | 1984 Summer | |
| Patrick Buteux van der Kamp | Netherlands | Field hockey | 1960 Summer | |
| Lukas Kampa | Germany | Volleyball | 2012 Summer, 2024 Summer | |
| Athanasios Kambaflis | Greece | Wrestling | 1948 Summer | |
| M. Kampanath | Laos | Boxing | 1980 Summer | |
| Johannes van Kampen | Netherlands | Athletics | 1924 Summer | |
| Judith van Kampen | Softball | 2008 Summer | |
| Michiel van Kampen | Baseball | 2008 Summer | |
| Cootje van Kampen-Tonneman | Artistic gymnastics | 1948 Summer, 1952 Summer | |
| Gerard Kamper | Track cycling | 1972 Summer | |
| Bettina Kämpf | West Germany | Rowing | 1988 Summer | |
| Steven Kampfer | United States | Ice hockey | 2022 Winter | |
| Esmé Kamphuis | Netherlands | Bobsleigh | 2010 Winter, 2014 Winter | |
| Pitak Kampita | Thailand | Judo | 1996 Summer | |
| Franziska Kampmann | Germany | Rowing | 2020 Summer | |
| Panagiotis Kampouridis | Greece | Sailing | 2012 Summer | |
| Marit Kamps | Netherlands | Judo | 2024 Summer | |
| Uwe Kamps | West Germany | Football | 1988 Summer | |
| Mehdi Kamrani | Iran | Basketball | 2008 Summer | |
| Reza Kamrani | Water polo | 1976 Summer | |
| Maria Kamrowska | Poland | Athletics | 1992 Summer | |
| Piotr Kamrowski | Judo | 1992 Summer, 1996 Summer | |
| Somluck Kamsing | Thailand | Boxing | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Somrot Kamsing | 1996 Summer | |
| Berber Kamstra | Netherlands | Swimming | 1976 Summer | |
| Joop Kamstra | Athletics | 1928 Summer | |
| Valentina Kamsulyeva | Kazakhstan | Judo | 1996 Summer | |
| Beata Kamuda | Poland | Rowing | 1980 Summer | |
| Takeshi Kamura | Japan | Badminton | 2020 Summer | |
| Moses Kamut | Vanuatu | Athletics | 2004 Summer, 2008 Summer | |
| Chawalit Kamutchati | Thailand | Shooting | 1972 Summer | |
| Jenő Kamuti | Hungary | Fencing | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer, 1976 Summer | |
| László Kamuti | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| Geoffrey Kamworor | Kenya | Athletics | 2016 Summer | |
| Hrihoriy Kamyshenko | Ukraine | Wrestling | 1996 Summer, 2000 Summer | |
| John Kamyuka | Botswana | Swimming | 2008 Summer | |
| Andrey Kan | Belarus | Artistic gymnastics | 1996 Summer | |
| Jan Kan | Netherlands | Art competitions | 1932 Summer | |
| Masayoshi Kan | Japan | Athletics | 1992 Summer | |
| Myint Kan | Myanmar | 1992 Summer | |
| Wouter Kan | Netherlands | Field hockey | 1976 Summer | |
| Yo Kan | Japan | Table tennis | 2008 Summer | |
| Awni Kanaan | Iraq | Basketball | 1948 Summer | |
| Yasunobu Kanada | Japan | Canoe sprint | 1988 Summer | |
| Toni Kanaet | Croatia | Taekwondo | 2020 Summer | |
| Takehiko Kanagoki | Japan | Basketball | 1936 Summer | |
| Hideta Kanai | Athletics | 1964 Summer | |
| Taio Kanai | 2020 Summer | |
| Yutaka Kanai | 1984 Summer | |
| Yulia Kanakina | Russian Olympic Committee | Skeleton | 2022 Winter | |
| Shizo Kanakuri | Japan | Athletics | 1912 Summer, 1920 Summer, 1924 Summer | |
| Kosuke Kanamaru | Basketball | 2020 Summer | |
| Yusuke Kanamaru | Judo | 2008 Summer | |
| Alois Kanamüller | West Germany | Biathlon | 1976 Winter, 1980 Winter | |
| Angelina Kanana | Kenya | Athletics | 1996 Summer | |
| Gyula Kánásy | Hungary | Swimming | 1932 Summer | |
| Halina Kanasz | Poland | Luge | 1972 Winter, 1976 Winter | |
| Yoshihiko Kanatsu | Japan | Fencing | 1984 Summer, 1988 Summer | |
| Heizo Kanayama | Art competitions | 1932 Summer | |
| Hidenari Kanayama | Luge | 2014 Winter | |
| Diana Kanayeva | Russian Olympic Committee | Ice hockey | 2018 Winter | |
| Evgeniya Kanaeva | Russia | Rhythmic gymnastics | 2008 Summer, 2012 Summer | |
| Vladimir Kanaykin | Athletics | 2012 Summer | |
| Yvonne Kanazawa | Japan | 1996 Summer, 2000 Summer | |
| Masaru Kanbe | Field hockey | 1960 Summer | |
| Chisela Kanchela | Zambia | Swimming | 2004 Summer | |
| Ventseslav Kanchev | Bulgaria | Rowing | 1980 Summer, 1988 Summer | |
| Tamás Kancsal | Hungary | Modern pentathlon | 1976 Summer | |
| Remigijus Kančys | Lithuania | Athletics | 2016 Summer | |
| Kaie Kand | Estonia | 2008 Summer | |
| Kazuo Kanda | Japan | Rowing | 1952 Summer | |
| Mathias Kanda | Zimbabwe | Athletics | 1964 Summer | |
| Shuzo Kanda | Japan | Art competitions | 1932 Summer, 1936 Summer | |
| Anwar Kandafil | Morocco | Wrestling | 1996 Summer | |
| Jana Kandarr | Germany | Tennis | 2000 Summer | |
| Georgi Kandelaki | Georgia | Boxing | 1996 Summer | |
| Hüseyin Kandemir | Turkey | Rowing | 2016 Summer | |
| Sigurd Kander | Sweden | Sailing | 1912 Summer | |
| Slaven Kandić | Montenegro | Water polo | 2020 Summer | |
| Ahmed Kandil | Egypt | Swimming | 1948 Summer | |
| Amira Kandil | Modern pentathlon | 2020 Summer | |
| El-Sayed Kandil | Wrestling | 1948 Summer | |
| Léna Kandissounon | France | Athletics | 2024 Summer | |
| Georg Kandlinger | West Germany | Cross country skiing | 1976 Winter | |
| Yoko Kando | Japan | Swimming | 1992 Summer | |
| Mitsuko Kandori | Artistic gymnastics | 1968 Summer | |
| Marjan Kandus | Yugoslavia | Basketball | 1960 Summer | |
| Charlie Kane | Great Britain | Boxing | 1988 Summer | |
| Cory Kane [ Wikidata ] | China | Ice hockey | 2022 Winter | |
| Harry Kane | Great Britain | Athletics | 1956 Summer | |
| Justin Kane | Australia | Boxing | 2000 Summer | |
| Mark Kane | Ireland | Road cycling | 1992 Summer | |
| Missy Kane | United States | Athletics | 1984 Summer | |
| Patrick Kane | Ice hockey | 2010 Winter, 2014 Winter | |
| Thrine Kane | Shooting | 2000 Summer | |
| Kazuya Kaneda | Japan | Swimming | 2012 Summer | |
| Ryo Kanehama | Wrestling | 1988 Summer | |
| Yasumitsu Kanehama | Speed skating | 1988 Winter | |
| Takaaki Kaneiri | Ice hockey | 1968 Winter | |
| Hideo Kanekawa | Basketball | 1960 Summer | |
| Akitomo Kaneko | Artistic gymnastics | 1952 Summer | |
| Hiromi Kaneko | Road cycling | 2020 Summer | |
| Hironobu Kaneko | Art competitions | 1936 Summer | |
| Makoto Kaneko | Baseball | 2004 Summer | |
| Masaaki Kaneko | Wrestling | 1968 Summer | |
| Masaki Kaneko | Swimming | 2016 Summer | |
| Shohei Kaneko | Athletics | 1964 Summer | |
| Yutaka Kaneko | Wrestling | 1960 Summer | |
| Hans Känel | Switzerland | Track cycling | 1980 Summer | |
| Pavlos Kanellakis | Greece | Shooting | 1976 Summer | |
| Kanellos Kanellopoulos | Road cycling | 1984 Summer | |
| Yuzo Kanemaru | Japan | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Yuka Kanematsu | Rugby sevens | 2016 Summer | |
| Kaia Kanepi | Estonia | Tennis | 2004 Summer, 2008 Summer | |
| Pauls Kaņeps | Latvia | Cross country skiing | 1936 Winter | |
| Emma Kanerva | Finland | Equestrian dressage | 2012 Summer, 2024 Summer | |
| Ismo Kanerva | Rowing | 1964 Summer | |
| Janne Kanerva | Weightlifting | 1992 Summer, 1996 Summer | |
| Silja Kanerva | Sailing | 2012 Summer | |
| William Kanerva | Football | 1936 Summer | |
| Katsuko Kanesaka | Japan | Volleyball | 1976 Summer | |
| Nikhil Kanetkar | India | Badminton | 2004 Summer | |
| Keita Kaneto | Japan | Diving | 1988 Summer, 1992 Summer, 1996 Summer | |
| Rie Kaneto | Swimming | 2008 Summer, 2016 Summer | |
| Shunsuke Kaneto | Diving | 1960 Summer, 1964 Summer | |
| Georgi Kanev | Bulgaria | Basketball | 1956 Summer, 1960 Summer | |
| Giselle Kañevsky | Argentina | Field hockey | 2008 Summer | |
| Kenji Kaneyasu | Japan | Rowing | 1976 Summer | |
| Kang Baek-ho | South Korea | Baseball | 2020 Summer | |
| Calvin Kang Li Loong | Singapore | Athletics | 2008 Summer | |
| Catherine Seulki Kang | Central African Republic | Taekwondo | 2012 Summer | |
| Kang Chae-young | South Korea | Archery | 2020 Summer | |
| Kang Chil-ku | Ski jumping | 2002 Winter, 2006 Winter, 2014 Winter | |
| Kang Cho-hyun | Shooting | 2000 Summer | |
| Kang Choon-won | Boxing | 1960 Summer | |
| Kang Chul | Football | 1992 Summer, 2000 Summer | |
| Kang Chung-ho | Wrestling | 1960 Summer | |
| Danielle Kang | United States | Golf | 2020 Summer | |
| Kang Dong-hee | South Korea | Basketball | 1996 Summer | |
| Kang Dong-jin | Track cycling | 2016 Summer | |
| Kang Doo-tae | Volleyball | 1984 Summer | |
| Kang Duck-soo | Handball | 1984 Summer | |
| Kang Eun-hye | 2020 Summer, 2024 Summer | |
| Kang Gee-eun | Shooting | 2012 Summer, 2024 Summer | |
| Kang Gwang-song | North Korea | Artistic gymnastics | 1980 Summer | |
| Kang Hee-chan | South Korea | Table tennis | 1992 Summer, 1996 Summer | |
| Kang Hye-ja | Shooting | 1988 Summer | |
| Kang Hye-mi | Volleyball | 1996 Summer, 2000 Summer, 2004 Summer | |
| Kang Hyung-chul | Shooting | 2004 Summer | |
| Kang Il-koo | Handball | 2000 Summer, 2008 Summer | |
| Kang Jae-won | 1984 Summer, 1988 Summer, 1992 Summer | |
| Kang Ji-sook | Basketball | 2000 Summer, 2004 Summer | |
| Kang Joon-ho | Boxing | 1952 Summer | |
| Kang Keon-wook | Field hockey | 1996 Summer, 2000 Summer | |
| Kang Ki-jin | Canoe sprint | 1992 Summer | |
| Kang Kwang-bae | Luge, Skeleton, Bobsleigh | 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter | |
| Kang Kyung-jin | Badminton | 1996 Summer | |
| Kang Kyung-min | Handball | 2020 Summer, 2024 Summer | |
| Kang Lee-seul | Basketball | 2020 Summer | |
| Kang Man-soo | Volleyball | 1972 Summer, 1976 Summer, 1984 Summer | |
| Kang Min-heuk | Alpine skiing | 2002 Winter, 2006 Winter | |
| Kang Min-heung | Rowing | 1988 Summer | |
| Kang Min-ho | Baseball | 2008 Summer, 2020 Summer | |
| Kang Min-hyuk | Badminton | 2024 Summer | |
| Kang Min-soo | Football | 2008 Summer | |
| Kang Min-su | Shooting | 2016 Summer | |
| Kang Mi-suk | Weightlifting | 2004 Summer | |
| Kang Mi-young | Speed skating | 1994 Winter, 1998 Winter | |
| Kang Moon-kweon | Field hockey | 2008 Summer, 2012 Summer | |
| Kang Moon-kyu | 2012 Summer | |
| Kang Myong-a | Shooting | 1992 Summer | |
| Kang Nak-youn | Alpine skiing | 1988 Winter | |
| Kang Ok-sun | North Korea | Volleyball | 1972 Summer | |
| Kang Seong-jung | South Korea | Field hockey | 2004 Summer, 2008 Summer | |
| Kang Sin-young | Judo | 2008 Summer | |
| Kang Song-il | North Korea | Alpine skiing | 2018 Winter | |
| Kang Sung-hyung | South Korea | Volleyball | 1992 Summer | |
| Kang Tae-koo | Handball | 1984 Summer | |
| Kang Un-ju | North Korea | Archery | 2016 Summer | |
| Kang Yeong-seo | South Korea | Swimming | 2008 Summer | |
| Kang Yeoun-hee | Weightlifting | 2020 Summer | |
| Kang Yong-gyun | North Korea | Wrestling | 1996 Summer, 2000 Summer | |
| Kang Yong-ok | Judo | 1992 Summer | |
| Kang Yoon-sung | South Korea | Football | 2020 Summer | |
| Kang Young-mi | Fencing | 2016 Summer, 2020 Summer, 2024 Summer | |
| Kang Young-seo | Alpine skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Kang Yu-jeong | Judo | 2020 Summer | |
| Kang Yun-mi | North Korea | Artistic gymnastics | 2004 Summer | |
| Kang Yun-mi | South Korea | Short track speed skating | 2006 Winter | |
| Joona Kangas | Finland | Freestyle skiing | 2018 Winter | |
| Karl Kangas [ Wikidata ] | Wrestling | 1912 Summer | |
| Reino Kangasmäki | 1948 Summer | |
| Kaarlo Kangasniemi | Weightlifting | 1964 Summer, 1968 Summer, 1972 Summer | |
| Kauko Kangasniemi | 1972 Summer | |
| Taisto Kangasniemi | Wrestling | 1948 Summer, 1952 Summer, 1956 Summer, 1964 Summer | |
| Tanel Kangert | Estonia | Road cycling | 2008 Summer, 2016 Summer, 2020 Summer | |
| Roger Kangni | Togo | Athletics | 1972 Summer | |
| Chinglensana Kangujam | India | Field hockey | 2016 Summer | |
| Tibor Kangyal | Hungary | Basketball | 1964 Summer | |
| Marek Kania [ Wikidata ] | Poland | Speed skating | 2022 Winter | |
| Zbigniew Kania | Sailing | 1972 Summer | |
| Paula Kania-Choduń | Tennis | 2016 Summer | |
| Bogusław Kanicki | Volleyball | 1980 Summer | |
| Miki Kanie | Japan | Archery | 2012 Summer | |
| Rund Kanika | Democratic Republic of the Congo | Boxing | 1988 Summer | |
| Willy Kanis | Netherlands | Track cycling | 2008 Summer, 2012 Summer | |
| Olga Kaniskina | Russia | Athletics | 2008 Summer, 2012 Summer | |
| Chalit Kanitasut | Thailand | 1964 Summer | |
| Nicolas Kanivé | Luxembourg | Artistic gymnastics, Athletics | 1912 Summer, 1920 Summer | |
| Kenaz Kaniwete | Kiribati | Athletics | 2024 Summer | |
| Tivadar Kanizsa | Hungary | Water polo | 1956 Summer, 1960 Summer, 1964 Summer | |
| Rachot Kanjanavanit | Thailand | Sailing | 1964 Summer, 1968 Summer, 1972 Summer | |
| Marijan Kanjer | Croatia | Swimming | 1996 Summer, 2000 Summer | |
| Johan Kankkonen | Finland | Road cycling | 1912 Summer | |
| Veikko Kankkonen | Ski jumping | 1960 Winter, 1964 Winter, 1968 Winter | |
| Shehab Kankouni | Kuwait | Football | 2000 Summer | |
| Alois Kaňkovský | Czech Republic | Track cycling | 2004 Summer, 2008 Summer | |
| Paula Kann | United States | Alpine skiing | 1948 Winter | |
| Dharmalingam Kannan | India | Football | 1960 Summer | |
| Mahendran Kannan | Weightlifting | 1984 Summer | |
| Muhammad Kannayan | Football | 1956 Summer | |
| David Kannemeyer | South Africa | 2000 Summer | |
| Tiaan Kannemeyer | Road cycling | 2004 Summer | |
| Bernd Kannenberg | West Germany | Athletics | 1972 Summer, 1976 Summer | |
| Dharma Raj Kanniah | Malaysia | Field hockey | 1992 Summer | |
| Alisa Kano | United States | Rhythmic gymnastics | 2016 Summer | |
| Cláudio Kano | Brazil | Table tennis | 1988 Summer, 1992 Summer | |
| Koki Kano | Japan | Fencing | 2020 Summer, 2024 Summer | |
| Maiko Kano | Volleyball | 2012 Summer | |
| Makoto Kano | Figure skating | 1988 Winter | |
| Miyuki Kano | Volleyball | 2008 Summer | |
| Ryota Kano | Rugby sevens | 2020 Summer | |
| Orlane Kanor | France | Handball | 2024 Summer | |
| Kadiatou Kanouté | Mali | Basketball | 2008 Summer | |
| Manda Kanouté | Athletics | 1992 Summer | |
| Annette Kansy | East Germany | Figure skating | 1972 Winter | |
| Hari Kant | Canada | Field hockey | 2000 Summer | |
| Laxmi Kanta Das | India | Weightlifting | 1960 Summer, 1964 Summer | |
| Tapio Kantanen | Finland | Athletics | 1972 Summer, 1976 Summer | |
| Nihan Kantarcı | Turkey | Shooting | 2012 Summer | |
| Rami Kantari | Lebanon | Swimming | 1984 Summer, 1988 Summer | |
| Sataporn Kantasa-ard | Thailand | Road cycling | 1972 Summer | |
| Nicole Kantek | Australia | Artistic gymnastics | 1996 Summer | |
| Gerd Kanter | Estonia | Athletics | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Arja Kantola | Finland | Speed skating | 1968 Winter, 1972 Winter | |
| Denny Kantono | Indonesia | Badminton | 1996 Summer | |
| Anikó Kántor | Hungary | Handball | 1996 Summer, 2000 Summer | |
| Hans Kantor | Austria | Athletics | 1924 Summer | |
| MacKinlay Kantor | United States | Art competitions | 1936 Summer | |
| Piotr Kantor | Poland | Beach volleyball | 2016 Summer, 2020 Summer | |
| Roman Kantor | Fencing | 1936 Summer | |
| Sharon Kantor | Israel | Sailing | 2024 Summer | |
| Waldo Kantor | Argentina | Volleyball | 1984 Summer, 1988 Summer | |
| Pavel Kantorek | Czechoslovakia | Athletics | 1956 Summer, 1960 Summer, 1964 Summer | |
| Barbara Kantorová | Slovakia | Alpine skiing | 2014 Winter, 2018 Winter | |
| Herman Kantoyeu | Belarus | Wrestling | 2000 Summer, 2004 Summer | |
| Jaroslav Kantůrek | Czechoslovakia | Basketball | 1976 Summer | |
| Nils von Kantzow | Sweden | Artistic gymnastics | 1908 Summer | |
| Christopher Kanu | Nigeria | Football | 2000 Summer | |
| Nwankwo Kanu | 1996 Summer | |
| Uchenna Kanu | 2024 Summer | |
| Lynn Kanuka-Williams | Canada | Athletics | 1984 Summer, 1988 Summer | |
| Ben Kanute | United States | Triathlon | 2016 Summer | |
| Antal von Kánya | Hungary | Equestrian jumping | 1928 Summer | |
| Kennedy Kanyanta | Zambia | Boxing | 2000 Summer | |
| Igor Kanygin | Soviet Union | Wrestling | 1980 Summer | |
| Vladimir Kanygin | Weightlifting | 1972 Summer | |
| Maher Kanzari | Tunisia | Football | 1996 Summer | |
| Kao Chan-hung | Chinese Taipei | Weightlifting | 2020 Summer | |
| Kao Cheng-jui | Table tennis | 2024 Summer | |
| Kao Chih-kang | Baseball | 2004 Summer, 2008 Summer | |
| Kao Hao-wen | Archery | 2016 Summer | |
| Kuo-Hui Kao | Baseball | 2008 Summer | |
| Kao Wenchao | China | Archery | 2024 Summer | |
| Shigeo Kaoku | Japan | Field hockey | 1964 Summer, 1968 Summer | |
| Wilson Kaoma | Zambia | Boxing | 1980 Summer | |
| Eston Kaonga | Malawi | Athletics | 1972 Summer | |
| Esko Kaonpää | Finland | Ice hockey | 1964 Winter | |
| Adil Kaouch | Morocco | Athletics | 2000 Summer, 2004 Summer | |
| Abdelhamid El Kaoutari | Football | 2012 Summer | |
| Anastasiya Kapachinskaya | Russia | Athletics | 2008 Summer, 2012 Summer | |
| Constantino Kapambwe | Zambia | 1964 Summer | |
| Hannu Kapanen | Finland | Ice hockey | 1976 Winter | |
| Niko Kapanen | 2006 Winter, 2010 Winter | |
| Sami Kapanen | 1994 Winter, 1998 Winter, 2002 Winter | |
| Boglárka Kapás | Hungary | Swimming | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Julien Kapek | France | Athletics | 2004 Summer | |
| Zaina Kapepula | Democratic Republic of the Congo | Basketball | 1996 Summer | |
| Marios Kaperonis | Greece | Boxing | 2004 Summer | |
| Roland Kapf | West Germany | Canoe sprint | 1968 Summer | |
| Rejoice Kapfumvuti | Zimbabwe | Football | 2016 Summer | |
| Ramona Kapheim | East Germany | Rowing | 1980 Summer | |
| Eckart Kaphengst | West Germany | Sailing | 1984 Summer | |
| Mieczysław Kapiak | Poland | Road cycling | 1936 Summer | |
| Dragan Kapičić | Yugoslavia | Basketball | 1972 Summer | |
| Josef Kapín | Czechoslovakia | Boxing | 1968 Summer | |
| David Kapirante | Kenya | Athletics | 2024 Summer | |
| Kitson Kapiriel | Federated States of Micronesia | 2016 Summer | |
| Vladimir Kapirulin | Soviet Union | Diving | 1972 Summer | |
| Inna Kapishina | Belarus | Swimming | 2004 Summer, 2008 Summer | |
| Petar Kapisoda | Serbia and Montenegro | Handball | 2000 Summer | |
| Fletcher Kapito | Malawi | Boxing | 1984 Summer | |
| Dmitry Kapitonov | Russia | Athletics | 2000 Summer | |
| Viktor Kapitonov | Soviet Union | Road cycling | 1956 Summer, 1960 Summer | |
| Hamit Kaplan | Turkey | Wrestling | 1956 Summer, 1960 Summer, 1964 Summer | |
| Harold Kaplan | Canada | Art competitions | 1948 Summer | |
| Ron Kaplan | Israel | Artistic gymnastics | 1992 Summer | |
| Stephen Kaplan | United States | Fencing | 1976 Summer | |
| Valery Kaplan | Soviet Union | Speed skating | 1968 Winter | |
| Stefan Kapłaniak | Poland | Canoe sprint | 1956 Summer, 1960 Summer, 1964 Summer | |
| Oldřiška Kaplanová | Czechoslovakia | 1972 Summer | |
| Iuliia Kaplina | Russian Olympic Committee | Sport climbing | 2020 Summer | |
| Vladimir Kaplunov | Soviet Union | Weightlifting | 1964 Summer | |
| Oskar Kaplur | Russia | Wrestling | 1912 Summer | |
| Volodymyr Kaplychnyi | Soviet Union | Football | 1972 Summer | |
| Andrejs Kapmals | Russia | Athletics | 1912 Summer | |
| Anikó Kapócs | Hungary | Rowing | 1988 Summer, 1992 Summer | |
| György Kapocsi | Boxing | 1948 Summer | |
| Jagdish Singh Kapoor | Uganda | Field hockey | 1972 Summer | |
| Upkar Singh Kapoor | 1972 Summer | |
| Christopher Kapopo | Zambia | Boxing | 1984 Summer | |
| Mladen Kapor | Independent Olympians | Swimming | 1992 Summer | |
| Imre Kapossy | Hungary | Rowing | 1936 Summer | |
| Marios Kapotsis | Greece | Water polo | 2020 Summer | |
| Andy Kapp | Germany | Curling | 1998 Winter, 2006 Winter, 2010 Winter | |
| Anneliese Kapp | Diving | 1936 Summer | |
| Dietloff Kapp | Modern pentathlon | 1952 Summer | |
| Erhardt Kapp | United States | Football | 1984 Summer | |
| Osvald Käpp | Estonia | Wrestling | 1924 Summer, 1928 Summer, 1932 Summer | |
| Uli Kapp | Germany | Curling | 1998 Winter, 2006 Winter | |
| Adam Kappacher | Austria | Freestyle skiing | 2018 Winter, 2022 Winter | |
| Gustave Kappeler | France | Wrestling | 1924 Summer | |
| Andreas Kappes | West Germany | Road cycling | 1984 Summer | |
| Bianca Kappler | Germany | Athletics | 2004 Summer | |
| Chris Kappler | United States | Equestrian jumping | 2004 Summer | |
| Bohumila Kapplová | Czechoslovakia | Canoe slalom | 1972 Summer | |
| Jan Kapr | Art competitions | 1948 Summer | |
| Andrey Kapralov | Russia | Swimming | 2000 Summer, 2004 Summer, 2008 Summer | |
| Vadim Kapranov | Soviet Union | Basketball | 1968 Summer | |
| Olga Kapranova | Russia | Rhythmic gymnastics | 2008 Summer | |
| Ioannis Kapraras | Greece | Alpine skiing | 1988 Winter, 1992 Winter | |
| Kirill Kaprizov | Russian Olympic Committee | Ice hockey | 2018 Winter | |
| Anikó Kapros | Hungary | Tennis | 2004 Summer | |
| Jessie Kaps | Belgium | Shooting | 2020 Summer | |
| Ruth Kaps | Germany | Rowing | 1996 Summer | |
| Velik Kapsazov | Bulgaria | Artistic gymnastics | 1956 Summer, 1960 Summer, 1964 Summer | |
| Eduardo Kapstein | Chile | Basketball | 1936 Summer, 1948 Summer | |
| Vadim Kaptur | Belarus | Diving | 2008 Summer, 2012 Summer, 2016 Summer | |
| Vasiliy Kaptyukh | Athletics | 1996 Summer, 2000 Summer, 2004 Summer | |
| Milorad Kapur [ Wikidata ] | Serbia | Volleyball | 2024 Summer | |
| Franz Kapus | Switzerland | Bobsleigh | 1948 Winter, 1952 Winter, 1956 Winter | |
| Richard Kapuš | Slovakia | Ice hockey | 2002 Winter, 2006 Winter | |
| Tomáš Kapusta | Czech Republic | 1994 Winter | |
| Denis Kapustin | Russia | Athletics | 2000 Summer | |
| Oleksandr Kapustin | Ukraine | Rowing | 1996 Summer | |
| Sergei Kapustin | Soviet Union | Ice hockey | 1976 Winter | |
| Alexandra Kapustina | Russia | 2006 Winter, 2010 Winter, 2014 Winter | |
| Jana Kapustová | Slovakia | 2010 Winter | |
| Rellie Kaputin | Papua New Guinea | Athletics | 2020 Summer | |
| Gábor Kapuvári | Hungary | Wrestling | 2000 Summer | |
| Chintamoni Kar | Great Britain | Art competitions | 1948 Summer | |
| Edward Kar | Liberia | Athletics | 1972 Summer | |
| Miriam Kara | Israel | Artistic gymnastics | 1960 Summer | |
| Theodore Kara | United States | Boxing | 1936 Summer | |
| Reşit Karabacak | Turkey | Wrestling | 1984 Summer | |
| Yelyzaveta Karabash | Ukraine | Rhythmic gymnastics | 2004 Summer | |
| Samir Karabašić | Bosnia and Herzegovina | Canoe slalom | 1996 Summer | |
| Luka Karabatic | France | Handball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Nikola Karabatić | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Dimitrios Karabatis | Greece | Athletics | 1920 Summer, 1924 Summer, 1928 Summer | |
| Brahim Karabi | Tunisia | 1960 Summer | |
| Dan Karabin | Czechoslovakia | Wrestling | 1976 Summer, 1980 Summer | |
| Daouda Karaboué | France | Handball | 2008 Summer, 2012 Summer | |
| Vladimir Karabutov | Unified Team, Russia | Water polo | 1992 Summer, 1996 Summer | |
| Vasileia Karachaliou | Greece | Sailing | 2020 Summer | |
| German Karachevsky | Unified Team | Cross country skiing | 1992 Winter | |
| Ilko Karacholov | Bulgaria | Luge | 1992 Winter, 1994 Winter | |
| Ivan Karacholov | 1992 Winter, 1994 Winter | |
| Viktor Karachun | Belarus | Ice hockey | 1998 Winter | |
| Igor Karačić | Croatia | Handball | 2016 Summer | |
| Zsolt Karacs | Hungary | Shooting | 1996 Summer | |
| László Karácson | Modern pentathlon | 1948 Summer | |
| Gyula Karácsony | Shooting | 1988 Summer | |
| Mustafa Al-Karad | Qatar | Handball | 2016 Summer | |
| Mehmet Karadağ | Turkey | Wrestling | 1984 Summer | |
| Tuğba Karademir | Figure skating | 2006 Winter, 2010 Winter | |
| Süleyman Karadeniz | Wrestling | 2020 Summer | |
| Nagihan Karadere | Athletics | 2012 Summer | |
| Péter Karádi | Hungary | 1952 Summer | |
| Thomas Karadimos | Greece | Alpine skiing | 1976 Winter | |
| Georgi Karadushev | Bulgaria | Wrestling | 1988 Summer | |
| Petar Karadzhov | Canoe sprint | 1996 Summer | |
| Ömer Karaevli | Turkey | Equestrian jumping | 2016 Summer | |
| László Karaffa | Hungary | Athletics | 1988 Summer | |
| Karel Karafiát | Czechoslovakia | Rowing | 1964 Summer | |
| Marina Karaflou | Greece | Shooting | 2004 Summer | |
| Alexandros Karageorgiou | Archery | 2004 Summer | |
| Aristidis Karageorgos | Athletics | 1980 Summer | |
| Christos Karageorgos [ Wikidata ] | 1980 Summer | |
| Georgios Karageorgos | 1948 Summer | |
| Eftychia Karagianni | Water polo | 2004 Summer | |
| Argyris Karagiannis | Athletics | 1924 Summer, 1928 Summer | |
| G. Karagiannopoulos [ Wikidata ] | Shooting | 1896 Summer | |
| Maria Karagiannopoulou | Judo | 1992 Summer, 2004 Summer | |
| Fırat Karagöllü | Turkey | Boxing | 2000 Summer | |
| Mustafa Karagöllü | 2004 Summer | |
| Helen Karagounis | Great Britain | Athletics | 2004 Summer | |
| Nurdan Karagöz | Turkey | Weightlifting | 2012 Summer | |
| Soner Karagöz | Boxing | 1996 Summer | |
| Ashot Karagyan | Soviet Union | Fencing | 1980 Summer | |
| Momchil Karailiev | Bulgaria | Athletics | 2004 Summer, 2008 Summer | |
| Dajana Karajica | Yugoslavia | Luge | 1984 Winter | |
| Suad Karajica | 1984 Winter | |
| Tilemachos Karakalos | Greece | Fencing | 1896 Summer | |
| Hedvig Karakas | Hungary | Judo | 2012 Summer, 2016 Summer, 2020 Summer | |
| Aleksandar Karakašević | Serbia and Montenegro, Serbia | Table tennis | 1996 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Georgi Karakashev | Bulgaria | Art competitions | 1932 Summer | |
| Tatyana Karakashyants | Soviet Union | Diving | 1952 Summer, 1956 Summer | |
| Karakatsanis | Greece | Shooting | 1896 Summer | |
| Konstantinos Karakatsanis | Athletics | 1896 Summer | |
| Dudu Karakaya | Turkey | 2012 Summer | |
| Pen-ek Karaket | Thailand | Taekwondo | 2012 Summer | |
| David Karako | Israel | Football | 1968 Summer | |
| Nastassia Karakouskaya | Belarus | Swimming | 2020 Summer | |
| Ebrar Karakurt | Turkey | Volleyball | 2020 Summer, 2024 Summer | |
| Ayhan Karakuş | Wrestling | 2012 Summer | |
| Nimet Karakuş | Athletics | 2012 Summer | |
| Milorad Karalić | Yugoslavia | Handball | 1972 Summer, 1976 Summer | |
| Donata Karalienė | Lithuania | Rowing | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Yauheni Karaliok | Belarus | Track cycling | 2020 Summer | |
| Yauheni Karaliou | Diving | 2016 Summer | |
| Emmanouil Karalis | Greece | Athletics | 2020 Summer, 2024 Summer | |
| Ioannis Karalogos | Water polo | 1972 Summer | |
| Thomas Karalogos | 1968 Summer, 1972 Summer, 1980 Summer | |
| Mahmoud Karam | Egypt | Handball | 2004 Summer | |
| Nasser Karam | Sailing | 1984 Summer | |
| Veneta Karamandzhukova | Bulgaria | Rowing | 1980 Summer | |
| Georgi Karamanliev | Wrestling | 1988 Summer | |
| Ioannis Karamazakis | Greece | Fencing | 1948 Summer | |
| Sergey Karamchakov | Soviet Union | Wrestling | 1988 Summer | |
| Lidiya Karamchakova | Tajikistan | 2004 Summer | |
| İrem Karamete | Turkey | Fencing | 2016 Summer, 2020 Summer | |
| Miyoko Karami | Japan | Road cycling | 2004 Summer | |
| Yousef Karami | Iran | Taekwondo | 2004 Summer, 2012 Summer | |
| Elyes Karamosli | Tunisia | Volleyball | 2012 Summer, 2020 Summer | |
| Hosni Karamosly | 2004 Summer | |
| Filippos Karampetsos | Greece | Water polo | 2012 Summer | |
| Fatemeh Karamzadeh | Iran | Shooting | 2020 Summer | |
| Vithal Karande | India | Artistic gymnastics | 1964 Summer | |
| Hossein Karandish | Iran | Basketball | 1948 Summer | |
| Kseniya Karandyuk | Ukraine | Athletics | 2008 Summer | |
| Aitor Karanka | Spain | Football | 1996 Summer | |
| Vasso Karantasiou | Greece | Beach volleyball | 2000 Summer, 2004 Summer, 2008 Summer | |
| Patroklos Karantinos | Art competitions | 1948 Summer | |
| Ivaylo Karanyotov | Bulgaria | Athletics | 1980 Summer | |
| Nezir Karap | Turkey | Swimming | 2016 Summer | |
| Angeliki Karapataki | Greece | Water polo | 2004 Summer | |
| Andreas Karapatakis [ Wikidata ] | Cyprus | Sailing | 1988 Summer | |
| Dimitrios Karapatakis | 1980 Summer | |
| Marios Karapatakis | 1980 Summer | |
| Ferdinand Karapetian | Armenia | Judo | 2020 Summer | |
| Rumyana Karapetrova | Bulgaria | Athletics | 2008 Summer | |
| Aleksander Karapetyan | Armenia, Australia | Weightlifting | 1996 Summer, 2000 Summer | |
| Andranik Karapetyan | Armenia | 2016 Summer, 2024 Summer | |
| Ashot Karapetyan | Alpine skiing | 2018 Winter | |
| Elmira Karapetyan | Shooting | 2020 Summer, 2024 Summer | |
| Garik Karapetyan | Weightlifting | 2024 Summer | |
| Yalçın Karapınar | Turkey | Wrestling | 1996 Summer | |
| Aleksandr Karapuzov | Soviet Union | Ski jumping | 1976 Winter | |
| Tomáš Karas | Czech Republic | Rowing | 2004 Summer | |
| Vladimír Karas | Czechoslovakia | Artistic gymnastics | 1948 Summer | |
| Władysław Karaś | Poland | Shooting | 1936 Summer | |
| David Karasek | Switzerland | Swimming | 2012 Summer | |
| Sergey Karasev | Russia | Basketball | 2012 Summer | |
| Pantelis Karasevdas | Greece | Shooting | 1896 Summer | |
| Mariya Karashka | Bulgaria | Artistic gymnastics | 1968 Summer | |
| Katarzyna Karasińska | Poland | Alpine skiing | 2006 Winter | |
| Maria Karastamati | Greece | Athletics | 2004 Summer | |
| Eirini Karastergiou | Swimming | 2004 Summer | |
| Lyuben Karastoyanov | Bulgaria | Athletics | 1924 Summer | |
| Nikolay Karasyov | Soviet Union | Rowing | 1956 Summer | |
| Nikolay Karasyov | Athletics | 1964 Summer | |
| Valery Karasyov | Artistic gymnastics | 1968 Summer | |
| Olga Karasyova | 1968 Summer | |
| Anna Kárász | Hungary | Canoe sprint | 2020 Summer | |
| Ilana Karaszyk | Israel | Athletics | 1960 Summer | |
| Aslan Karatsev | Russian Olympic Committee | Tennis | 2020 Summer | |
| Branislav Karaulić | Yugoslavia | Athletics | 1988 Summer | |
| Ivan Karaulov | Kazakhstan | Ski jumping | 2006 Winter | |
| Brackin Karauria-Henry | Japan | Rugby sevens | 2020 Summer | |
| Anni Kärävä | Finland | Freestyle skiing | 2022 Winter | |
| Oleg Karavaev | Soviet Union | Wrestling | 1960 Summer | |
| Irina Karavayeva | Russia | Trampolining | 2000 Summer, 2004 Summer, 2008 Summer | |
| Bekir Karayel | Turkey | Athletics | 2012 Summer, 2016 Summer | |
| Dimitri Karbanenko | France | Artistic gymnastics | 2000 Summer, 2004 Summer, 2008 Summer | |
| Hélène Karbanov | Rhythmic gymnastics | 2024 Summer | |
| Milada Karbanová | Czechoslovakia | Athletics | 1972 Summer, 1976 Summer | |
| Marek Karbarz | Poland | Volleyball | 1972 Summer, 1976 Summer | |
| Denise Karbon | Italy | Alpine skiing | 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter | |
| Tibor Karczag | Hungary | Weightlifting | 1992 Summer, 1996 Summer | |
| Sakina Karchaoui | France | Football | 2016 Summer, 2024 Summer | |
| Heribert Karches | West Germany | Rowing | 1984 Summer | |
| Karla Karch-Gailus | Canada | Basketball | 1996 Summer, 2000 Summer | |
| Mike Karchut | United States | Weightlifting | 1972 Summer | |
| Lisa Ann Karčić | Croatia | Basketball | 2012 Summer | |
| Imre Karcsú | Hungary | Equestrian jumping | 1960 Summer | |
| Agata Karczmarek | Poland | Artistic gymnastics, Athletics | 1980 Summer, 1988 Summer, 1992 Summer, 1996 Summer | |
| Marcin Karczyński | Cycling mountain bike | 2004 Summer | |
| Amiran Kardanov | Greece | Wrestling | 1996 Summer, 2000 Summer, 2004 Summer | |
| Murat Kardanov | Russia | 2000 Summer | |
| Klaudia Kardasz | Poland | Athletics | 2020 Summer, 2024 Summer | |
| Johannes Kardiono | Indonesia | 1984 Summer | |
| Arwin Kardolus | Netherlands | Fencing | 1988 Summer | |
| Olaf Kardolus | 1988 Summer | |
| Don Kardong | United States | Athletics | 1976 Summer | |
| Olga Kardopoltseva | Belarus | 1996 Summer | |
| Géza Kardos | Hungary | Basketball | 1948 Summer | |
| Maria Kardum | Sweden | Swimming | 1984 Summer | |
| Abdul Aziz Abdul Kareem | Kuwait | Athletics | 1976 Summer | |
| Mariam Kareem [ Wikidata ] | United Arab Emirates | 2024 Summer | |
| Zaid Kareem | Jordan | Taekwondo | 2024 Summer | |
| Natallia Kareiva | Belarus | Athletics | 2012 Summer | |
| Aleksandr Karelin | Soviet Union, Unified Team, Russia | Wrestling | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Pavel Karelin | Russia | Ski jumping | 2010 Winter | |
| Neeltje Karelse | Netherlands | Athletics | 1948 Summer | |
| Wilfred Kareng | Botswana | 1980 Summer | |
| Virginia Karentzou | Greece | Artistic gymnastics | 1996 Summer | |
| Bo Karenus | Sweden | Speed skating | 1960 Winter | |
| Andrei Karev | Belarus | Ice hockey | 2010 Winter | |
| Anna Kareyeva | Russia | Handball | 2008 Summer | |
| Akbar Kargarjam | Iran | Football | 1972 Summer | |
| Houshang Kargarnejad | Weightlifting | 1976 Summer | |
| Michaela Kargbo | Sierra Leone | Athletics | 2008 Summer | |
| Saidu Kargbo [ Wikidata ] | Boxing | 2008 Summer | |
| Martin Kargl | Austria | Football | 1936 Summer | |
| Om Prakash Karhana | India | Athletics | 2012 Summer | |
| Minna Karhu | Finland | Freestyle skiing | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter | |
| Urho Karhumäki | Art competitions | 1936 Summer | |
| Esko Karhunen | Basketball | 1952 Summer | |
| Monia Kari | Tunisia | Athletics | 1996 Summer, 2000 Summer | |
| Regina Kari [ Wikidata ] | Finland | Swimming | 1912 Summer | |
| Steven Kari | Papua New Guinea | Weightlifting | 2012 Summer | |
| Ohene Karikari | Ghana | Athletics | 1972 Summer | |
| Tuomo Karila | Finland | Wrestling | 1992 Summer, 1996 Summer | |
| Abdul Karim | Indonesia | Canoe sprint | 1992 Summer | |
| Aman Ullah Karim | Malaya | Field hockey | 1956 Summer | |
| Faisal Karim | Pakistan | Boxing | 2004 Summer | |
| Mahdi Karim | Iraq | Football | 2004 Summer | |
| Menatalla Karim | Egypt | Canoe sprint | 2016 Summer | |
| Muhammad Karim | Pakistan | Alpine skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Sherko Karim | Iraq | Football | 2016 Summer | |
| Soon Mustafa bin Karim | Malaysia | Field hockey | 1984 Summer, 1992 Summer | |
| Taha Abdul Karim | Iraq | Boxing | 1960 Summer | |
| Alireza Karimi | Iran | Wrestling | 2016 Summer | |
| Javad Karimi | Volleyball | 2020 Summer | |
| Milad Karimi | Kazakhstan | Artistic gymnastics | 2020 Summer, 2024 Summer | |
| Hassan Karimou | Niger | Athletics | 1988 Summer | |
| Tarlan Karimov | Azerbaijan | Judo | 2012 Summer | |
| Aliya Karimova | Kazakhstan | Artistic swimming | 2000 Summer, 2004 Summer | |
| Elvina Karimova | Russia, Russian Olympic Committee | Water polo | 2016 Summer, 2020 Summer | |
| Evgeniya Karimova | Uzbekistan | Taekwondo | 2008 Summer | |
| Natalya Karimova | Russia | Track cycling | 1996 Summer, 2000 Summer | |
| Yulia Karimova | Russian Olympic Committee | Shooting | 2020 Summer | |
| Nurzhan Karimzhanov | Kazakhstan | Boxing | 2000 Summer, 2004 Summer | |
| Endri Karina | Albania | Weightlifting | 2012 Summer | |
| Kari Kåring | Norway | Speed skating | 1968 Winter | |
| Vaidas Kariniauskas | Lithuania | Basketball | 2016 Summer | |
| Ayumi Karino | Japan | Softball | 2008 Summer | |
| Konstantinos Kariotis | Greece | Rowing | 1992 Summer | |
| Keld Karise | Denmark | 1936 Summer | |
| Tanja Karišik-Košarac | Bosnia and Herzegovina | Biathlon, Cross country skiing | 2010 Winter, 2014 Winter, 2018 Winter | |
| Julius Kariuki | Kenya | Athletics | 1984 Summer, 1988 Summer | |
| Paul Kariya | Canada | Ice hockey | 1994 Winter, 2002 Winter | |
| Frans Karjagin | Finland | Football | 1936 Summer | |
| Jouko Karjalainen | Nordic combined | 1980 Winter, 1984 Winter | |
| Olli-Pekka Karjalainen | Athletics | 2000 Summer, 2004 Summer, 2008 Summer | |
| Osmo Karjalainen | Cross country skiing | 1972 Winter | |
| Sini Karjalainen | Ice hockey | 2022 Winter | |
| Vladimir Kärk | Estonia | Basketball | 1936 Summer | |
| Rachael Karker | Canada | Freestyle skiing | 2022 Winter | |
| Khalid Al-Karkhi [ Wikidata ] | Iraq | Boxing | 1960 Summer, 1964 Summer | |
| Ashok Kumar Karki | Nepal | Weightlifting | 1980 Summer | |
| Karishma Karki | Swimming | 2008 Summer | |
| Juhani Kärkinen | Finland | Ski jumping | 1960 Winter | |
| Hannes Kärkkäinen | Diving | 1924 Summer | |
| Wojciech Karkusiewicz | Poland | Shooting | 1988 Summer | |
| Benjamin Karl | Austria | Snowboarding | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Günther Karl | West Germany | Rowing | 1968 Summer | |
| Martin Karl | Germany | 1936 Summer | |
| Petras Karla | Soviet Union | 1964 Summer | |
| Ernst Karlberg | Sweden | Ice hockey | 1924 Winter, 1928 Winter | |
| Joakim Karlberg | Speed skating | 1988 Winter, 1992 Winter | |
| Charles Karle | United States | Rowing | 1928 Summer | |
| Maude Karlén | Sweden | Artistic gymnastics | 1956 Summer | |
| René Karlen | Switzerland | Basketball | 1936 Summer | |
| Joachim Karliczek | Poland | Swimming | 1936 Summer | |
| Bohuslav Karlík | Czechoslovakia | Canoe sprint | 1936 Summer, 1952 Summer | |
| Mikuláš Karlík | Czech Republic | Biathlon | 2022 Winter | |
| Moritz Karlitzek | Germany | Volleyball | 2024 Summer | |
| Jānis Karlivāns | Latvia | Athletics | 2004 Summer, 2008 Summer | |
| Tomislav Karlo | Croatia | Swimming | 1996 Summer | |
| Larysa Karlova | Soviet Union | Handball | 1976 Summer, 1980 Summer, 1988 Summer | |
| Ivo Karlović | Croatia | Tennis | 2004 Summer | |
| János Karlovits | Hungary | Athletics | 1928 Summer | |
| Tommy Karls | Sweden | Canoe sprint | 1984 Summer | |
| Harry Boye Karlsen | Norway | Football | 1952 Summer | |
| Norveig Karlsen | Artistic gymnastics | 1952 Summer | |
| Truls Ove Karlsen | Alpine skiing | 2002 Winter, 2010 Winter | |
| William Karlsen | Swimming | 1932 Summer | |
| Yngvar Karlsen | Speed skating | 1952 Winter | |
| Gitte Karlshøj | Denmark | Athletics | 1992 Summer, 1996 Summer | |
| Kristine Karlson | United States | Rowing | 1992 Summer | |
| Elfrīda Karlsone | Latvia | Athletics | 1928 Summer | |
| Åke Karlsson | Finland | Boxing | 1936 Summer | |
| Anita Karlsson | Sweden | Shooting | 1988 Summer | |
| Anna Karlsson | Canoe sprint | 2004 Summer | |
| Ann-Ewa Karlsson | Athletics | 1980 Summer | |
| Ann-Marie Karlsson | Cross country skiing | 1992 Winter | |
| Arne Karlsson | Sailing | 1964 Summer | |
| Arne Karlsson | Shooting | 1968 Summer | |
| Bertil Karlsson | Athletics | 1952 Summer | |
| Birger Karlsson | Finland | Rowing | 1952 Summer | |
| Christina Karlsson | Sweden | Speed skating | 1968 Winter | |
| David Karlsson [ Wikidata ] | Wrestling | 1912 Summer | |
| Einar Karlsson | 1932 Summer, 1936 Summer | |
| Erik Karlsson | Ice hockey | 2014 Winter | |
| Eva Karlsson | Canoe sprint | 1984 Summer | |
| Eva-Lena Karlsson | Cross country skiing | 1984 Winter | |
| Evert Karlsson | Ski jumping | 1948 Winter | |
| Frida Karlsson | Cross country skiing | 2022 Winter | |
| Håkan Karlsson | Road cycling | 1980 Summer | |
| Håkan Karlsson | Swimming | 1992 Summer | |
| Hjalmar Karlsson | Sailing | 1956 Summer | |
| Holger Karlsson | Ski jumping | 1956 Winter, 1964 Winter | |
| Jan Karlsson | Wrestling | 1968 Summer, 1972 Summer, 1976 Summer | |
| Jan Karlsson | Road cycling | 1988 Summer, 1992 Summer, 1996 Summer | |
| Jan-Erik Karlsson | Athletics | 1968 Summer | |
| Jenny Karlsson | Badminton | 2000 Summer | |
| Joon-Olof Karlsson | Basketball | 1980 Summer | |
| Kári Steinn Karlsson | Iceland | Athletics | 2012 Summer | |
| Karl Karlsson | Sweden | Wrestling | 1912 Summer | |
| Karl-Axel Karlsson | Shooting | 1972 Summer, 1976 Summer | |
| Kenth Karlsson | Water polo | 1980 Summer | |
| Kristian Karlsson | Table tennis | 2016 Summer, 2020 Summer, 2024 Summer | |
| Lars Karlsson | Handball | 1972 Summer | |
| Lars Karlsson | Ice hockey | 1988 Winter | |
| Louise Karlsson | Swimming | 1992 Summer, 1996 Summer | |
| Lovisa Karlsson | Sailing | 2020 Summer, 2024 Summer | |
| Mathilda Karlsson | Sri Lanka | Equestrian jumping | 2020 Summer | |
| Mats Karlsson | Sweden | Volleyball | 1988 Summer | |
| Nils Karlsson | Cross country skiing | 1948 Winter, 1952 Winter | |
| Per-Olof Karlsson | Sailing | 1960 Summer | |
| Peter Karlsson | Athletics | 1996 Summer | |
| Peter Karlsson | Table tennis | 1996 Summer, 2000 Summer, 2004 Summer | |
| Raimo Karlsson | Finland | Wrestling | 1972 Summer | |
| Roine Karlsson | Sweden | Athletics | 1964 Summer | |
| Sebastian Karlsson | Handball | 2024 Summer | |
| Stefan Karlsson | Snowboarding | 2002 Winter, 2006 Winter | |
| Sten Karlsson | Shooting | 1968 Summer | |
| Stina Karlsson | Cross country skiing | 1984 Winter | |
| Thord Karlsson | Ski jumping | 1968 Winter | |
| Tobias Karlsson | Handball | 2012 Summer, 2016 Summer | |
| Tore Karlsson | Boxing | 1948 Summer | |
| Ulrika Karlsson | Football | 1996 Summer | |
| Waldemar Karlsson | Athletics | 1924 Summer | |
| Werner Karlsson | Road cycling | 1912 Summer | |
| Ida-Theres Karlsson-Nerell | Wrestling | 2004 Summer, 2008 Summer | |
| Geir Karlstad | Norway | Speed skating | 1984 Winter, 1988 Winter, 1992 Winter | |
| Jon-Magne Karlstad | Ice hockey | 1984 Winter, 1992 Winter | |
| Perseus Karlström | Sweden | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Karma | Bhutan | Archery | 2016 Summer, 2020 Summer | |
| Raycho Karmadzhiev | Bulgaria | Canoe sprint | 1980 Summer | |
| Dipa Karmakar | India | Artistic gymnastics | 2016 Summer | |
| Joydeep Karmakar | Shooting | 2012 Summer | |
| Mehmut Şevket Karman | Turkey | Alpine skiing, Cross country skiing | 1936 Winter | |
| Vasily Karmanov | Soviet Union | Swimming | 1952 Summer | |
| Lior Karmi | Israel | Canoe sprint | 1996 Summer, 2000 Summer | |
| Vera Karmishina-Ganeeva | Russia | Athletics | 2012 Summer | |
| Mohamed Karmous | Morocco | Wrestling | 1968 Summer, 1972 Summer, 1976 Summer | |
| Jarmo Kärnä | Finland | Athletics | 1988 Summer | |
| Ulrich Karnatz | East Germany | Rowing | 1976 Summer, 1980 Summer | |
| Ron Karnaugh | United States | Swimming | 1992 Summer | |
| Anna Karnaukh | Russia, Russian Olympic Committee | Water polo | 2012 Summer, 2016 Summer, 2020 Summer | |
| Pavel Karnaukhov | Russian Olympic Committee | Ice hockey | 2022 Winter | |
| Hanna Karnaushenko | Soviet Union | Rowing | 1976 Summer | |
| Benno Karner | Austria | Bobsleigh | 1928 Winter | |
| Leo Karner | Road cycling | 1976 Summer | |
| Leanid Karneyenka | Belarus | Cross country skiing | 2010 Winter | |
| Siarhei Karneyeu | Boxing | 2012 Summer | |
| Abdullah Al-Karni | Saudi Arabia | Football | 1996 Summer | |
| Artūras Karnišovas | Lithuania | Basketball | 1992 Summer, 1996 Summer | |
| Peter Karns | United States | Biathlon | 1972 Winter | |
| Alfons Karny | Poland | Art competitions | 1932 Summer | |
| Pere Karoba | Indonesia | Rowing | 2004 Summer | |
| Bedan Karoki Muchiri | Kenya | Athletics | 2012 Summer, 2016 Summer | |
| Yuliya Karol | Belarus | 2016 Summer | |
| Yanina Karolchyk-Pravalinskaya | 2000 Summer, 2008 Summer, 2012 Summer | |
| Christoforos Karolou | Greece | Sailing | 1948 Summer | |
| Jenő Károly | Hungary | Football | 1912 Summer | |
| Lassi Karonen | Sweden | Rowing | 2008 Summer, 2012 Summer | |
| Väinö Karonen | Finland | Artistic gymnastics | 1924 Summer | |
| Khalifa Karouane | Morocco | Wrestling | 1968 Summer | |
| Radwan Karout | Syria | 1980 Summer | |
| Dimitar Karov | Bulgaria | Volleyball | 1964 Summer, 1968 Summer, 1972 Summer | |
| Algo Kärp | Estonia | Cross country skiing | 2010 Winter, 2014 Winter, 2018 Winter | |
| Vitalijus Karpačiauskas | Lithuania | Boxing | 1992 Summer, 1996 Summer | |
| Deniss Karpak | Estonia | Sailing | 2008 Summer, 2012 Summer, 2016 Summer | |
| Vaughn Karpan | Canada | Ice hockey | 1984 Winter, 1988 Winter | |
| György Kárpáti | Hungary | Water polo | 1952 Summer, 1956 Summer, 1960 Summer, 1964 Summer | |
| Károly Kárpáti | Wrestling | 1928 Summer, 1932 Summer, 1936 Summer | |
| Ödön Kárpáti | Athletics | 1912 Summer | |
| Rudolf Kárpáti | Fencing | 1948 Summer, 1952 Summer, 1956 Summer, 1960 Summer | |
| Svetlana Karpeeva | Russia | Swimming | 2008 Summer | |
| Igor Karpenko | Ukraine | Ice hockey | 2002 Winter | |
| Nikolay Karpenko | Kazakhstan | Ski jumping | 2006 Winter, 2010 Winter | |
| Valentyna Karpenko | Ukraine | Road cycling | 2000 Summer, 2004 Summer | |
| Viktoria Karpenko | Artistic gymnastics | 2000 Summer | |
| Oscar Karpenkopf | Argentina | Judo | 1964 Summer | |
| Ilia Karpenkov | Russian Olympic Committee | 3x3 basketball | 2020 Summer | |
| Natalia Karpenkova | Belarus | Trampolining | 2000 Summer | |
| Vladimir Karpets | Russia | Track cycling, Road cycling | 2000 Summer, 2004 Summer, 2008 Summer | |
| Józef Karpiel | Poland | Nordic combined | 1960 Winter | |
| Stanisław Karpiel | Cross country skiing | 1936 Winter | |
| Marzena Karpińska | Weightlifting | 2008 Summer | |
| Kateryna Karpiuk | Ukraine | Athletics | 2020 Summer | |
| Ken Karpoff | Canada | Biathlon | 1988 Winter | |
| Gennadi Karponosov | Soviet Union | Figure skating | 1976 Winter, 1980 Winter | |
| Georgios Karpouzis | Greece | Swimming | 1976 Summer | |
| Dmitriy Karpov | Kazakhstan | Athletics | 2004 Summer, 2008 Summer, 2012 Summer | |
| Nikolai Karpov | Soviet Union | Ice hockey | 1960 Winter | |
| Oleg Karpov | Unified Team | Equestrian eventing | 1992 Summer | |
| Rychard Karpov | Soviet Union | Boxing | 1956 Summer | |
| Valeri Karpov | Russia | Ice hockey | 1994 Winter | |
| Elena Karpova | Basketball | 2004 Summer | |
| Irina Karpova | Kazakhstan | Athletics | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Olga Karpova | Volleyball | 2008 Summer | |
| Oleksandra Karpovich | Russia | Water polo | 2008 Summer | |
| Klaes Karppinen | Finland | Cross country skiing | 1936 Winter | |
| Pertti Karppinen | Rowing | 1976 Summer, 1980 Summer, 1984 Summer, 1988 Summer, 1992 Summer | |
| Reima Karppinen | 1984 Summer, 1988 Summer, 1992 Summer | |
| Nadezhda Karpukhina | Soviet Union | Diving | 1968 Summer | |
| Marina Karpunina | Russia | Basketball | 2008 Summer | |
| Haimish Karrasch | Australia | Rowing | 1996 Summer, 2000 Summer | |
| Bernd Karrenbauer | East Germany | Ice hockey | 1968 Winter | |
| Heinz Karrer | Switzerland | Handball | 1984 Summer | |
| Josef Karrer | West Germany | 1972 Summer | |
| Sylvia Karres | Netherlands | Field hockey | 2004 Summer | |
| George Karrys | Canada | Curling | 1998 Winter | |
| Kateryna Karsak | Ukraine | Athletics | 2008 Summer, 2012 Summer | |
| Joachim Karsch | Germany | Art competitions | 1932 Summer | |
| Monika Karsch | Shooting | 2016 Summer, 2020 Summer | |
| Rudolf Karsch | Track cycling | 1936 Summer | |
| Aleksandr Karshakevich | Soviet Union | Handball | 1980 Summer, 1988 Summer | |
| Robert Karśnicki | Poland | Track cycling | 1992 Summer, 1996 Summer | |
| Michael Karst | West Germany | Athletics | 1976 Summer | |
| Ekaterina Karsten | Unified Team, Belarus | Rowing | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Elke Karsten | Argentina | Handball | 2016 Summer | |
| Horst Karsten | Germany, West Germany | Equestrian eventing | 1964 Summer, 1968 Summer, 1972 Summer | |
| Kai Karsten | Germany | Athletics | 1996 Summer | |
| Anke Karstens | Snowboarding | 2010 Winter, 2014 Winter, 2018 Winter | |
| Gerben Karstens | Netherlands | Road cycling | 1964 Summer | |
| Ida Karstoft | Denmark | Athletics | 2020 Summer, 2024 Summer | |
| Jan Kårström | Sweden | Wrestling | 1968 Summer, 1972 Summer | |
| Mārtiņš Karsums | Latvia | Ice hockey | 2010 Winter, 2014 Winter | |
| Mariya Kartalova | Bulgaria | Artistic gymnastics | 1988 Summer | |
| Nilay Kartaltepe | Turkey | Basketball | 2012 Summer | |
| Anatoly Kartashov | Soviet Union | Water polo | 1960 Summer | |
| Dmitry Kartashov | Russia | Rowing | 1996 Summer, 2000 Summer | |
| Alena Kartashova | Wrestling | 2004 Summer, 2008 Summer | |
| Martin Kartavi | Israel | Swimming | 2024 Summer | |
| Meirambek Kartbay [ Wikidata ] | Kazakhstan | Wrestling | 2024 Summer | |
| Sebastian Kartfjord | Norway | Cycling BMX racing | 2008 Summer | |
| Dieter Delle Karth | Austria | Bobsleigh | 1976 Winter | |
| Georg Karth [ Wikidata ] | Germany | Artistic gymnastics | 1908 Summer | |
| Nico Delle Karth | Austria | Sailing | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Walter Delle Karth Sr. | Nordic combined | 1936 Winter | |
| Doszhan Kartikov | Kazakhstan | Wrestling | 2016 Summer | |
| Givi Kartozia | Soviet Union | 1956 Summer, 1960 Summer | |
| Aleksandr Kartsev | Russian Olympic Committee | Artistic gymnastics | 2020 Summer | |
| Ossi Karttunen | Finland | Athletics | 1972 Summer, 1976 Summer | |
| Franz Kartz | Germany | Boxing | 1932 Summer | |
| Esko Karu | Canada | Biathlon, Cross country skiing | 1968 Winter | |
| Shunji Karube | Japan | Athletics | 1996 Summer, 2000 Summer | |
| Matti Karumaa | Finland | Ice hockey | 1952 Winter | |
| Ekambaram Karunakaran | India | Weightlifting | 1980 Summer | |
| Ranatunge Karunananda | Sri Lanka | Athletics | 1964 Summer | |
| Tharushi Karunarathna | 2024 Summer | |
| Hatha Karunaratne | Boxing | 1968 Summer | |
| Kuruppu Karunaratne | Athletics | 1992 Summer | |
| Niluka Karunaratne | Badminton | 2012 Summer, 2016 Summer, 2020 Summer | |
| Janakabhorn Karunayadhaj | Thailand | Equestrian jumping | 2024 Summer | |
| Sinnayah Karuppiah Jarabalan | Malaya | Athletics | 1956 Summer | |
| Igor Karvaš | Slovakia | Sailing | 1996 Summer | |
| Filippos Karvelas | Greece | Artistic gymnastics | 1896 Summer | |
| Michelle Karvinen | Finland | Ice hockey | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Aki Karvonen | Cross country skiing | 1984 Winter, 1988 Winter | |
| Börje Karvonen | Boxing | 1960 Summer, 1964 Summer | |
| Pentti Karvonen | Athletics | 1960 Summer | |
| Veikko Karvonen | 1952 Summer, 1956 Summer | |
| Marlena Karwacka | Poland | Track cycling | 2020 Summer, 2024 Summer | |
| Bronisław Karwecki | Rowing | 1936 Summer | |
| Rajmund Karwicki | Fencing | 1936 Summer, 1948 Summer | |
| Bernd Karwofsky | East Germany | Ski jumping | 1968 Winter | |
| Alexander Karwoski | United States | Rowing | 2016 Summer | |
| Zacharoula Karyami | Greece | Rhythmic gymnastics | 2000 Summer | |
| Konstantinos Karydas | Alpine skiing | 1964 Winter | |
| Dimitrios Karydis | Swimming | 1972 Summer | |
| Antonios Karyofyllis | Athletics | 1924 Summer, 1928 Summer | |
| Ioannis Karyofyllis | 1928 Summer | |
| Ioannis Karyofyllis | Sailing | 1960 Summer | |
| Nikolaos Karypidis | Wrestling | 1968 Summer | |
| Savvas Karypidis | Handball | 2004 Summer | |
| Marina Karystinou | Swimming | 1996 Summer | |
| Dmytro Karyuchenko | Ukraine | Fencing | 2004 Summer, 2012 Summer, 2016 Summer | |
| Georgiy Karyukhin | Soviet Union | Canoe sprint | 1968 Summer | |
| Devery Karz | United States | Rowing | 2016 Summer | |
| Christopher Kas | Germany | Tennis | 2012 Summer | |
| Gabor Kasa | Serbia | Road cycling | 2012 Summer | |
| Arsen Kasabiev | Georgia, Poland | Weightlifting | 2004 Summer, 2008 Summer, 2012 Summer | |
| Georgi Kasabov | Bulgaria | Biathlon | 1998 Winter, 2002 Winter | |
| Petar Kasabov | Wrestling | 2000 Summer | |
| Radoslav Kasabov | 1960 Summer, 1964 Summer | |
| Aser El-Kasaby | Egypt | Handball | 1992 Summer | |
| Satoomi Kasagi | Japan | Rowing | 1964 Summer | |
| Erika Kasahara | Taekwondo | 2012 Summer | |
| Kenya Kasahara | Handball | 2020 Summer | |
| Shigeru Kasahara | Wrestling | 1956 Summer | |
| Shohei Kasahara | Athletics | 1964 Summer | |
| Takahiro Kasahara | 1988 Summer | |
| Tatsumi Kasahara | Biathlon | 2006 Winter | |
| Hisashi Kasai | Ice hockey | 1968 Winter | |
| Jun Kasai [ Wikidata ] | Athletics | 2024 Summer | |
| Masae Kasai | Volleyball | 1964 Summer | |
| Noriaki Kasai | Ski jumping | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter | |
| Yury Kasakov | Soviet Union | Diving | 1956 Summer | |
| Renata Kasalová | Czechoslovakia | Table tennis | 1988 Summer | |
| Yuji Kasama | Japan | Volleyball | 1988 Summer | |
| Akihiro Kasamatsu | Artistic gymnastics | 2000 Summer | |
| Shigeru Kasamatsu | 1972 Summer | |
| Pajtim Kasami | Switzerland | Football | 2012 Summer | |
| Karolj Kasap | Yugoslavia, Canada | Wrestling | 1980 Summer, 1984 Summer, 1992 Summer | |
| Vasiliki Kasapi | Greece | Weightlifting | 2004 Summer | |
| Alper Kasapoğlu | Turkey | Athletics | 1992 Summer, 1996 Summer | |
| Kudret Kasar | Equestrian jumping | 1948 Summer | |
| Tamás Kásás | Hungary | Water polo | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Zoltán Kásás | 1972 Summer | |
| Daria Kasatkina | Russia | Tennis | 2016 Summer | |
| Alexei Kasatonov | Soviet Union | Ice hockey | 1980 Winter, 1984 Winter, 1988 Winter | |
| Leonida Kasaya | Kenya | Volleyball | 2020 Summer, 2024 Summer | |
| Yukio Kasaya | Japan | Ski jumping | 1964 Winter, 1968 Winter, 1972 Winter, 1976 Winter | |
| Zarema Kasaeva | Russia | Weightlifting | 2004 Summer | |
| Abdelali Kasbane | Morocco | Athletics | 1992 Summer | |
| Obada Al-Kasbeh | Jordan | Boxing | 2016 Summer, 2020 Summer, 2024 Summer | |
| Mohamed Kasbr | Egypt | Field hockey | 2004 Summer | |
| Karl Kaschka | Austria | Fencing | 1936 Summer | |
| Gunther Kaschlun | Germany | Rowing | 1956 Summer | |
| Ilse Kaschube | East Germany | Canoe sprint | 1972 Summer | |
| Dimitrios Kasdaglis | Greece | Tennis | 1896 Summer | |
| Aniq Kasdan | Malaysia | Weightlifting | 2024 Summer | |
| Kiyoshi Kase | Japan | Wrestling | 1932 Summer | |
| Giovanni Kasebacher | Italy | Cross country skiing | 1936 Winter | |
| Reem Kaseem | Egypt | Marathon swimming | 2016 Summer | |
| Mohamad Kasem | Syria | Judo | 2016 Summer | |
| Nurbek Kasenov | Kyrgyzstan | Boxing | 1996 Summer, 2000 Summer | |
| Indrek Kaseorg | Estonia | Athletics | 1996 Summer, 2000 Summer | |
| Anja Käser | Switzerland | Sailing | 2000 Summer, 2004 Summer | |
| Elisabeth Käser | Canoe slalom | 1972 Summer | |
| Erwan Käser | Cross country skiing | 2018 Winter | |
| Waltraud Kaser | Italy | Ice hockey | 2006 Winter | |
| Yannick Käser | Switzerland | Swimming | 2012 Summer, 2016 Summer | |
| Monika Kaserer | Austria | Alpine skiing | 1972 Winter, 1976 Winter | |
| Fritz Käsermann | Switzerland | Wrestling | 1928 Summer | |
| Amos Kash | Russia | Shooting | 1912 Summer | |
| Rima Kashafutdinova | Kazakhstan | Athletics | 2016 Summer | |
| Jafar Kashani | Iran | Football | 1972 Summer | |
| Ravil Kashapov | Soviet Union | Athletics | 1988 Summer | |
| Klara Kashapova | Russia | 1996 Summer | |
| Svitlana Kashchenko | Nicaragua | Shooting | 2004 Summer | |
| Oksana Kashchyshyna | Ukraine | Road cycling | 2008 Summer | |
| Andrey Kashechkin | Kazakhstan | 2004 Summer | |
| Khaled El-Kashef | Egypt | Water polo | 1968 Summer | |
| Hassan El Kashief | Sudan | Athletics | 1984 Summer | |
| Hitomi Kashima | Japan | Swimming | 1996 Summer | |
| Takehiro Kashima | Artistic gymnastics | 2004 Summer, 2008 Summer | |
| Frederick Kashimoto | Zambia | Football | 1980 Summer | |
| Katsufusa Kashimura | Japan | Canoe sprint | 1964 Summer | |
| Seiichiro Kashio | Tennis | 1920 Summer | |
| Yury Kashirin | Soviet Union | Road cycling | 1980 Summer | |
| Tatiana Kashirina | Russia | Weightlifting | 2012 Summer | |
| Hank Kashiwa | United States | Alpine skiing | 1972 Winter | |
| Michiko Kashiwabara | Japan | Cross country skiing | 2010 Winter | |
| Kumiko Kashiwagi | Alpine skiing | 1998 Winter, 2002 Winter | |
| Masayoshi Kashiwagi | 1972 Winter | |
| Masaru Kashiwahara | Rowing | 1936 Summer | |
| Igor Kashkarov | Soviet Union | Athletics | 1956 Summer | |
| Juri Kashkarov | Biathlon | 1984 Winter, 1988 Winter | |
| Ziyad Kashmiri | Saudi Arabia | Swimming | 1992 Summer | |
| Svetla Kashtelyan | Bulgaria | Artistic gymnastics | 1976 Summer | |
| Igor Kashurov | Soviet Union | Rowing | 1972 Summer | |
| Parupalli Kashyap | India | Badminton | 2012 Summer | |
| Mladen Kašić | Yugoslavia | Volleyball | 1980 Summer | |
| Jan Kasielski | Poland | Luge | 1976 Winter | |
| Ruth Kasirye | Norway | Weightlifting | 2008 Summer | |
| Taweesak Kasiwat | Thailand | Shooting | 1964 Summer, 1968 Summer | |
| Alexander Kasjanov | Russia | Bobsleigh | 2014 Winter | |
| Aleksander Kask | Estonia | Weightlifting | 1928 Summer | |
| Harry Kaskey | United States | Speed skating | 1924 Winter | |
| Jack Kasley | Swimming | 1936 Summer | |
| Ariella Käslin | Switzerland | Artistic gymnastics | 2008 Summer | |
| Dagmar Käsling | East Germany | Athletics | 1972 Summer | |
| Günter Kaslowski | Germany | Track cycling | 1960 Summer | |
| Madek Kasman | Indonesia | Weightlifting | 1968 Summer | |
| Orsolya Kasó | Hungary | Water polo | 2016 Summer | |
| Michelle Kasold | United States | Field hockey | 2012 Summer, 2016 Summer | |
| Mwana Bute Kasongo | Democratic Republic of the Congo | Athletics | 1988 Summer | |
| Dimitrios Kasoumis | Greece | Shooting | 1960 Summer | |
| Alena Kašová | Czechoslovakia | Basketball | 1988 Summer | |
| Arndt Kaspar | West Germany | Shooting | 1988 Summer | |
| Felix Kaspar | Austria | Figure skating | 1936 Winter | |
| Jonáš Kašpar | Czech Republic | Canoe slalom | 2016 Summer | |
| Karel Kašpar | Czechoslovakia | Boxing | 1972 Summer | |
| Darius Kasparaitis | Unified Team, Russia | Ice hockey | 1992 Winter, 1998 Winter, 2002 Winter, 2006 Winter | |
| Thies Kaspareit | West Germany | Equestrian eventing | 1988 Summer | |
| Šárka Kašpárková | Czechoslovakia, Czech Republic | Athletics | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Jan Kasper | Czechoslovakia | Ice hockey | 1956 Winter, 1960 Winter | |
| John Kasper | United States | Bobsleigh | 1998 Winter | |
| Kirsten Kasper | Triathlon | 2024 Summer | |
| Nolan Kasper | Alpine skiing | 2010 Winter, 2014 Winter, 2018 Winter | |
| Peter Kasper | Austria | Ice hockey | 2002 Winter | |
| Romy Kasper | Germany | Road cycling | 2016 Summer | |
| Henryk Kasperczak | Poland | Football | 1976 Summer | |
| Janusz Kasperczak | Boxing | 1948 Summer | |
| Kamil Kasperczak [ Wikidata ] | Modern pentathlon | 2024 Summer | |
| Dmitry Kasperovich | Belarus | Artistic gymnastics | 2008 Summer, 2012 Summer | |
| Michał Kasperowicz | Poland | Bobsleigh | 2014 Winter | |
| Andrzej Kasprzak | Basketball | 1968 Summer, 1972 Summer | |
| Anna Kasprzak | Denmark | Equestrian dressage | 2012 Summer, 2016 Summer | |
| Zdzisław Kasprzak | Poland | Basketball | 1936 Summer | |
| Mieczysław Kasprzycki | Ice hockey | 1936 Winter, 1948 Winter | |
| Marian Kasprzyk | Boxing | 1960 Summer, 1964 Summer, 1968 Summer | |
| Stanisław Kasprzyk | Field hockey | 1972 Summer | |
| Stephen Kasprzyk | United States | Rowing | 2012 Summer, 2016 Summer | |
| Artūras Kasputis | Soviet Union, Lithuania | Track cycling, Road cycling | 1988 Summer, 1996 Summer, 2000 Summer | |
| Danny Kass | United States | Snowboarding | 2002 Winter, 2006 Winter | |
| Faazil Kassam | Canada | Table tennis | 2004 Summer | |
| Nabil Kassel | Algeria | Boxing | 2004 Summer, 2008 Summer | |
| Philip Kassel | United States | Artistic gymnastics | 1904 Summer | |
| Marios Kassianidis | Cyprus | Athletics | 1984 Summer | |
| Denika Kassim | Comoros | 2016 Summer | |
| Irina Kasimova | Russia | Weightlifting | 2000 Summer | |
| Elmo Kassin | Estonia | Cross country skiing | 1992 Winter, 1994 Winter, 1998 Winter | |
| Fabrizio Kasslatter | Italy | Ice hockey | 1984 Winter | |
| Mira Kasslin | Finland | Track cycling | 1996 Summer, 2000 Summer | |
| Onni Kasslin | 1948 Summer, 1952 Summer | |
| Ivan Kassman [ Wikidata ] | Papua New Guinea | Taekwondo | 2024 Summer | |
| Maxemillion Kassman | 2016 Summer | |
| Samantha Kassman | 2016 Summer | |
| Albertina Kassoma | Angola | Handball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Mirwan Kassouf | Lebanon | Boxing | 1988 Summer | |
| Agathi Kassoumi | Greece | Shooting | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Ole Kassow | Denmark | Rowing | 1960 Summer | |
| Kamil Kašťák | Czechoslovakia, Czech Republic | Ice hockey | 1992 Winter, 1994 Winter | |
| Spyridon Kastanis | Greece | Athletics | 2000 Summer, 2004 Summer | |
| Jenny Kastein | Netherlands | Swimming | 1936 Summer | |
| Andrej Kastelic | Slovenia | Handball | 2000 Summer, 2004 Summer | |
| Urh Kastelic | 2024 Summer | |
| Timo Kastening | Germany | 2020 Summer | |
| Petrus Kastenman | Sweden | Equestrian eventing | 1956 Summer | |
| Robert Kasting | Canada | Swimming | 1972 Summer | |
| Herbert Kastinger | Austria | Art competitions | 1936 Summer | |
| Miriam Kastlunger | Luge | 2014 Winter | |
| Detlef Kästner | East Germany | Boxing | 1980 Summer | |
| Deena Kastor | United States | Athletics | 2000 Summer, 2004 Summer, 2008 Summer | |
| Pavel Kastramin | Belarus | Boxing | 2016 Summer | |
| Charikleia Kastritsi | Greece | Weightlifting | 2004 Summer | |
| Robert Kaštrun | Yugoslavia | Nordic combined | 1984 Winter | |
| Vagn Kastrup | Denmark | Sailing | 1936 Summer | |
| Goran Kasum | Yugoslavia, Independent Olympians, Serbia and Montenegro | Wrestling | 1988 Summer, 1992 Summer, 1996 Summer | |
| Mujandjae Kasuto | Namibia | Boxing | 2008 Summer, 2012 Summer | |
| Kyoko Kasuya | Japan | Swimming | 1992 Summer | |
| Antti Kasvio | Finland | 1992 Summer, 1996 Summer | |
| Matti Kasvio | 1964 Summer | |
| Daniel Kaswanga [ Wikidata ] | Malawi | Road cycling | 1984 Summer, 1988 Summer | |
| Oleksiy Kasyanov | Ukraine | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Róbert Kasza | Hungary | Modern pentathlon | 2012 Summer, 2020 Summer | |
| Tamara Kaszala | Short track speed skating | 1992 Winter | |
| Kazimierz Kaszuba | Poland | Football | 1952 Summer | |
| Frances Kaszubski | United States | Athletics | 1948 Summer | |