| Name | Nation | Sport | Games | Notes |
|---|
| Giuseppe Iachini | Italy | Football | 1988 Summer | |
| Marta Iacoacci [ Wikidata ] | Artistic swimming | 2024 Summer | |
| Xoana Iacoi | Argentina | Handball | 2016 Summer | |
| Franck Iacono | France | Swimming | 1984 Summer, 1988 Summer | |
| Bogdan Iadov | Ukraine | Judo | 2024 Summer | |
| Al Iafrate | United States | Ice hockey | 1984 Winter | |
| Monica Iagăr | Romania | Athletics | 2000 Summer, 2004 Summer | |
| Mary Beth Iagorashvili | United States | Modern pentathlon | 2000 Summer, 2004 Summer | |
| Vakhtang Iagorashvili | Soviet Union, Georgia, United States | 1988 Summer, 1996 Summer, 2004 Summer | |
| James Iahuat | Vanuatu | Boxing | 1988 Summer | |
| Zurabi Iakobishvili | Georgia | Wrestling | 2016 Summer | |
| Filomenaleonisa Iakopo | American Samoa | Athletics | 2024 Summer | |
| Periklis Iakovakis | Greece | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Olha Iakovenko | Ukraine | 2012 Summer | |
| Theodoros Iakovidis | Greece | Weightlifting | 2016 Summer, 2020 Summer | |
| Thalia Iakovidou | Athletics | 2000 Summer | |
| Ivan Iakovlev | Russian Olympic Committee | Volleyball | 2020 Summer | |
| Mikhail Iakovlev | Israel | Track cycling | 2024 Summer | |
| Lidiia Iakovleva | Australia | Rhythmic gymnastics | 2020 Summer, 2024 Summer | |
| Christos Iakovou | Greece | Weightlifting | 1968 Summer, 1972 Summer, 1976 Summer | |
| Hrisostomia Iakovou | Athletics | 2000 Summer | |
| Dmytro Ianchuk | Ukraine | Canoe sprint | 2016 Summer, 2020 Summer | |
| Milivoi Iancovici | Romania | Rowing | 1952 Summer | |
| Constantin Iancu | Bobsleigh | 1980 Winter | |
| Adrian Ianculescu | Artistic gymnastics | 1996 Summer | |
| Alexandra Ianculescu | Speed skating | 2018 Winter | |
| Andrei Ianko | Wrestling | 1980 Summer | |
| Claudio Iannone | Argentina | Track cycling | 1984 Summer | |
| Giulia Iannotti | Italy | Shooting | 2000 Summer | |
| Angelo Iannuzzelli | El Salvador | Athletics | 1992 Summer | |
| Gaetano Iannuzzi | Italy | Rowing | 2000 Summer, 2004 Summer | |
| Juan Alberto Iannuzzi | Argentina | 1964 Summer | |
| Yanina Iannuzzi | Fencing | 1992 Summer, 1996 Summer | |
| Sylvia Iannuzzi-San Martín | 1968 Summer, 1972 Summer | |
| Ileana Ianoșiu-Hangan | Romania | Cross country skiing, Biathlon | 1988 Winter, 1992 Winter, 1994 Winter | |
| Larissa Iapichino | Italy | Athletics | 2024 Summer | |
| Svitlana Iaromka | Ukraine | Judo | 2016 Summer | |
| Denis Iartsev | Russia | 2016 Summer | |
| Gerardo Iasilli | United States | Art competitions | 1932 Summer | |
| Georgios Iatridis | Greece | Fencing | 1896 Summer | |
| Miltiades Iatrou | Road cycling | 1896 Summer | |
| Juan Ibacache | Chile | Football | 1928 Summer | |
| Edose Ibadin | Nigeria | Athletics | 2024 Summer | |
| Serge Ibaka | Spain | Basketball | 2012 Summer | |
| José Ibáñez Gómez | Cuba | Judo | 1972 Summer, 1976 Summer | |
| Javier Ibáñez | Bulgaria | Boxing | 2024 Summer | |
| José Andrés Ibáñez | Spain | Weightlifting | 1988 Summer, 1992 Summer | |
| Liliana Ibáñez | Mexico | Swimming | 2012 Summer, 2016 Summer | |
| Mara Ibañez | Athletics | 2000 Summer | |
| Roberto Ibáñez | Ecuador | Judo | 2008 Summer | |
| Sixto Ibáñez | Argentina | Athletics | 1948 Summer | |
| José Ibar | Cuba | Baseball | 2000 Summer | |
| José Ibarburu | Spain | Rowing | 1960 Summer | |
| Manuel Ibarburu | 1960 Summer | |
| Caterine Ibargüen | Colombia | Athletics | 2004 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Ainhoa Ibarra | Spain | Alpine skiing | 1988 Winter, 1992 Winter, 1994 Winter, 1998 Winter | |
| Elio Ibarra | Argentina | Boxing | 1992 Summer | |
| Isidoro Ibarra | Field hockey | 2016 Summer | |
| Juan Alberto Rodríguez Ibarra [ Wikidata ] | Mexico | Beach volleyball | 2000 Summer | |
| Manuel Ibarra | Chile | Football | 2000 Summer | |
| Pedro Ibarra | Argentina | Field hockey | 2012 Summer, 2016 Summer, 2020 Summer | |
| Raúl Ibarra | Mexico | Shooting | 1952 Summer, 1956 Summer, 1960 Summer, 1964 Summer | |
| Ricardo Ibarra | Argentina | Rowing | 1972 Summer, 1976 Summer, 1984 Summer | |
| Oier Ibarreche [ Wikidata ] | Spain | Boxing | 2024 Summer | |
| Isidro Ibarrondo | Argentina | Artistic gymnastics | 1992 Summer | |
| Lorea Ibarzabal | Spain | Athletics | 2024 Summer | |
| Luis Ibaseta | Chile | Basketball | 1936 Summer | |
| Bruce Ibbetson | United States | Rowing | 1984 Summer | |
| Derek Ibbotson | Great Britain | Athletics | 1956 Summer | |
| Ekene Ibekwe | Nigeria | Basketball | 2012 Summer, 2016 Summer | |
| Ify Ibekwe | 2020 Summer | |
| Florian Iberer | Austria | Ice hockey | 2014 Winter | |
| Matthias Iberer | 2014 Winter | |
| Lolo Ibern | Spain | Water polo | 1968 Summer | |
| Paulo Ibire | Argentina | Wrestling | 1996 Summer | |
| Abil Ibragimov | Kazakhstan | 2000 Summer | |
| Anvar Ibragimov | Soviet Union, Unified Team | Fencing | 1988 Summer, 1992 Summer | |
| Erkin Ibragimov | Kyrgyzstan | Judo | 2004 Summer | |
| Kamil Ibragimov | Russian Olympic Committee | Fencing | 2020 Summer | |
| Magomed Ibragimov | Uzbekistan | Wrestling | 2004 Summer | |
| Magomed Ibragimov | 2016 Summer, 2020 Summer | |
| Mamed Ibragimov | Kazakhstan | 2016 Summer | |
| Magomed Ibragimov | Azerbaijan, North Macedonia | 1996 Summer, 2000 Summer, 2004 Summer | |
| Rinat Ibragimov | Kazakhstan | Judo | 2008 Summer, 2012 Summer | |
| Sultan Ibragimov | Russia | Boxing | 2000 Summer | |
| Timur Ibragimov | Uzbekistan | 1996 Summer | |
| Ulugbek Ibragimov | 1996 Summer | |
| Karina Ibragimova | Kazakhstan | 2024 Summer | |
| Lyubov Ibragimova | Ice hockey | 2002 Winter | |
| Shakhzoda Ibragimova | Uzbekistan | Rhythmic gymnastics | 2024 Summer | |
| Abdel Fattah Sayed Ibrahim | Egypt | Wrestling | 1972 Summer | |
| Abdel Razek Ibrahim | Rowing | 2008 Summer | |
| Abdinasir Said Ibrahim | Somalia | Athletics | 2008 Summer | |
| Ahmed Ibrahim | Egypt | Rowing | 1964 Summer | |
| Ahmed Ibrahim | Wrestling | 1992 Summer | |
| Ahmed Ibrahim | Field hockey | 2004 Summer | |
| Ali Ibrahim | Djibouti | Athletics | 1996 Summer | |
| Ali Ibrahim | Egypt | Rowing | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Ameen-ud-Din bin Mohamed Ibrahim | Malaysia | Field hockey | 1968 Summer | |
| Amirul Hamizan Ibrahim | Weightlifting | 2008 Summer | |
| Ammar Ibrahim | Qatar | Athletics | 2024 Summer | |
| Amro Ibrahim | Egypt | Field hockey | 2004 Summer | |
| Bouh Ibrahim | Djibouti | Athletics | 2024 Summer | |
| Daud Ibrahim | Malaysia | Road cycling, Track cycling | 1972 Summer | |
| Enayat Allah Ibrahim | Egypt | Art competitions | 1924 Summer | |
| Faredin Ibrahim | Romania | Boxing | 1976 Summer | |
| Haneen Ibrahim | Sudan | Swimming | 2016 Summer, 2020 Summer | |
| Jumaat Ibrahim | Malaysia | Boxing | 1964 Summer | |
| Kamal Ibrahim | Egypt | Wrestling | 1984 Summer, 1988 Summer | |
| Mahmoud Ibrahim | 1964 Summer | |
| Mohamed Ibrahim | Diving | 1948 Summer | |
| Mohamed Ibrahim | Artistic gymnastics | 1964 Summer | |
| Mohamed Ismail Ibrahim | Djibouti | Athletics | 2016 Summer, 2024 Summer | |
| Mohamed Mahmoud Ibrahim | United Arab Republic, Egypt | Weightlifting | 1960 Summer, 1964 Summer | |
| Mohamed Nasihin Nubil Ibrahim | Malaysia | Field hockey | 1996 Summer, 2000 Summer | |
| Moustafa Ibrahim | Egypt | Football | 1992 Summer | |
| Mubal Azzam Ibrahim | Maldives | Swimming | 2020 Summer | |
| Muhammad Qamar Ibrahim | Pakistan | Field hockey | 1988 Summer, 1992 Summer | |
| Nebil Ibrahim | Sweden | Boxing | 2024 Summer | |
| Nishwan Ibrahim | Maldives | Swimming | 2016 Summer | |
| Omar Ibrahim [ Wikidata ] | Egypt | Shooting | 2024 Summer | |
| Saleh Ibrahim | United Arab Republic, Egypt | Rowing | 1960 Summer, 1964 Summer | |
| Salleh Ibrahim | Malaysia | Football | 1972 Summer | |
| Shaban Ibrahim | Egypt | Wrestling | 1984 Summer | |
| Waleed Ibrahim | Qatar | Football | 1992 Summer | |
| Yasser Farag Ibrahim | Egypt | Athletics | 2008 Summer | |
| Zeina Ibrahim | Artistic gymnastics | 2020 Summer | |
| Zlatan Ibrahimbegović | Yugoslavia | Canoe slalom | 1972 Summer | |
| Drilon Ibrahimi | Kosovo | Shooting | 2020 Summer | |
| Aydin Ibrahimov | Soviet Union | Wrestling | 1964 Summer | |
| Dadaş İbrahimov | Azerbaijan | Athletics | 2004 Summer | |
| Hayle Ibrahimov | 2012 Summer, 2016 Summer | |
| Yermakhan Ibraimov | Kazakhstan | Boxing | 1996 Summer, 2000 Summer | |
| Ibrohim Ibrohimov [ Wikidata ] | Uzbekistan | Football | 2024 Summer | |
| Rikke Ibsen | Denmark | Shooting | 2020 Summer, 2024 Summer | |
| Friedl Iby | Germany | Artistic gymnastics | 1936 Summer | |
| Norma Icardi | Italy | 1948 Summer | |
| Louis Ichard | France | Athletics | 1920 Summer | |
| René Iché | Art competitions | 1948 Summer | |
| Roland Iche | Canoe sprint | 1976 Summer | |
| Karine Icher | Golf | 2016 Summer | |
| Takashi Ichiba | Japan | Weightlifting | 1984 Summer, 1988 Summer | |
| Hiroki Ichigatani | Fencing | 1992 Summer, 1996 Summer | |
| Masamitsu Ichiguchi | Wrestling | 1960 Summer, 1964 Summer | |
| Yuka Ichiguchi | Softball | 2020 Summer | |
| Masao Ichihara | Athletics | 1936 Summer | |
| Ari Ichihashi | 2000 Summer | |
| Yoshiyuki Ichihashi | Bobsleigh | 1972 Winter | |
| Aki Ichijo | Basketball | 1996 Summer | |
| Kana Ichikawa | Athletics | 2012 Summer | |
| Kazuaki Ichikawa | Luge | 1972 Winter, 1976 Winter | |
| Tatsuo Ichikawa | Ice hockey | 1936 Winter | |
| Yoshiko Ichikawa | Athletics | 1996 Summer, 2000 Summer | |
| Edmundo Ichillumpa | Peru | Wrestling | 1988 Summer | |
| Liliana Ichim | Romania | Alpine skiing | 1984 Winter | |
| Kazuaki Ichimura | Japan | Speed skating | 1980 Winter | |
| Masami Ichimura | Alpine skiing | 1972 Winter, 1976 Winter | |
| Seitaro Ichinohe | Speed skating | 2018 Winter, 2022 Winter | |
| Tsuyoshi Ichinohe | Ski jumping | 2006 Winter | |
| Shiro Ichinoseki | Weightlifting | 1964 Summer, 1968 Summer | |
| Mao Ichiyama | Athletics | 2020 Summer, 2024 Summer | |
| Chiharu Icho | Wrestling | 2004 Summer, 2008 Summer | |
| Kaori Icho | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Ertuğrul İçingir | Turkey | Sailing | 2000 Summer, 2004 Summer, 2008 Summer | |
| Norman Ickeringill | Australia | Wrestling | 1956 Summer | |
| Takako Ida | Japan | Badminton | 2000 Summer | |
| Helen Idahosa | Nigeria | Weightlifting | 2000 Summer | |
| Eunice Idausa | Handball | 1992 Summer | |
| Víctor Idava | Philippines | Athletics | 1976 Summer | |
| Alexandre Iddir | France | Judo | 2016 Summer, 2020 Summer | |
| Juri Ide | Japan | Triathlon | 2008 Summer, 2012 Summer | |
| Kaname Ide | Speed skating | 1968 Winter, 1972 Winter | |
| Yosuke Ideguchi | Football | 2016 Summer | |
| Faith Idehen | Nigeria | Athletics | 1992 Summer | |
| Filippa Idéhn | Sweden | Handball | 2016 Summer | |
| Josefa Idem | West Germany, Italy | Canoe sprint | 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Geoff Iden | Great Britain | Athletics | 1952 Summer | |
| Gustav Iden | Norway | Triathlon | 2020 Summer | |
| Maxence Idesheim | France | Snowboarding | 1998 Winter | |
| Rodrigo Ideus | Colombia | Rowing | 2008 Summer | |
| Iñigo Idiakez | Spain | Football | 1996 Summer | |
| Ibón Idigoras | Snowboarding | 2006 Winter | |
| Santiago Idígoras | Football | 1976 Summer | |
| Emanuele Idini | Italy | Swimming | 1992 Summer, 1996 Summer | |
| Ali Idir | Algeria | Judo | 1988 Summer | |
| Åse Idland | Norway | Biathlon | 1992 Winter | |
| LaVonne Idlette | Dominican Republic | Athletics | 2012 Summer | |
| Hicham Ido | Lebanon | Wrestling | 1960 Summer | |
| Ene Franca Idoko | Nigeria | Athletics | 2008 Summer | |
| Michel Idoux | France | Water polo | 1988 Summer | |
| Oluyinka Idowu | Great Britain | Athletics | 1992 Summer | |
| Phillips Idowu | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Saheed Idowu | Republic of the Congo | Table tennis | 2012 Summer, 2024 Summer | |
| Adijat Idris [ Wikidata ] | Nigeria | Wrestling | 2020 Summer | |
| Hamzah Idris | Saudi Arabia | Football | 1996 Summer | |
| Imad Idriss | Syria | Boxing | 1980 Summer | |
| Mahamat Idriss | France, Chad | Athletics | 1960 Summer, 1964 Summer, 1968 Summer | |
| Abdelouahed Idrissi Chorfi | Morocco | Judo | 1996 Summer, 2000 Summer | |
| Abdelaziz El Idrissi | Athletics | 2008 Summer | |
| Ayoub El-Idrissi | Qatar | Judo | 2020 Summer | |
| Cédric El-Idrissi | Switzerland | Athletics | 2004 Summer | |
| Ibrahima Idrissou | Benin | 1972 Summer | |
| Julio Idrovo | Ecuador | Weightlifting | 2004 Summer | |
| James Idun | Ghana | Athletics | 1984 Summer | |
| Dorota Idzi | Poland | Modern pentathlon | 2000 Summer | |
| Edgar Ié | Portugal | Football | 2016 Summer | |
| Giulio Iellini | Italy | Basketball | 1972 Summer, 1976 Summer | |
| Julio Iemma | Venezuela | Shooting | 2016 Summer, 2020 Summer | |
| Julio César Iemma | Argentina | 1988 Summer | |
| Kees van Ieperen | Netherlands | 1980 Summer | |
| Ion Ieremciuc | Romania | Wrestling | 1992 Summer | |
| Kleanthis Ierissiotis | Greece | Athletics | 1976 Summer | |
| Marleen van Iersel | Netherlands | Beach volleyball | 2012 Summer, 2016 Summer | |
| Sergio Iesi | Uruguay | Fencing | 1948 Summer, 1952 Summer | |
| Liudmila Ievleva | Soviet Union | Athletics | 1968 Summer | |
| Noemi Iezzi | Italy | Rhythmic gymnastics | 2000 Summer | |
| Paul Ifrim | Romania | Luge | 2010 Winter | |
| Jorge Iga [ Wikidata ] | Mexico | Swimming | 2024 Summer | |
| Yuji Iga | Japan | Ice hockey | 1998 Winter | |
| Daniel Igali | Canada | Wrestling | 2000 Summer, 2004 Summer | |
| Diána Igaly | Hungary | Shooting | 1992 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Arisa Igarashi | Japan | Badminton | 2020 Summer, 2024 Summer | |
| Chihiro Igarashi | Swimming | 2016 Summer, 2020 Summer | |
| Fumio Igarashi | Figure skating | 1980 Winter | |
| Hisato Igarashi | Artistic gymnastics | 1976 Summer | |
| Kanoa Igarashi | Surfing | 2020 Summer, 2024 Summer | |
| Miki Igarashi | Athletics | 1992 Summer | |
| Mitsuko Igarashi | Ice hockey | 1998 Winter | |
| Toshiyuki Igarashi | Boxing | 2004 Summer | |
| José María Igartua | Spain | Football | 1968 Summer | |
| Juan Miguel Igartua | Handball | 1972 Summer | |
| Lizzy Igasan | New Zealand | Field hockey | 2004 Summer, 2008 Summer | |
| Laura Igaune | Latvia | Athletics | 2020 Summer | |
| Satomi Igawa | Japan | Badminton | 2000 Summer | |
| Chiharu Igaya | Alpine skiing | 1952 Winter, 1956 Winter, 1960 Winter | |
| Bright Igbinadolor | Nigeria | Football | 2000 Summer | |
| Richard Igbineghu | Boxing | 1992 Summer | |
| Festus Igbinoghene | Athletics | 1996 Summer | |
| Blessing Igbojionu | Football | 2004 Summer | |
| Fábio Igel | Brazil | Alpine skiing | 1992 Winter | |
| Emma Igelström | Sweden | Swimming | 2000 Summer | |
| Jarome Iginla | Canada | Ice hockey | 2002 Winter, 2006 Winter, 2010 Winter | |
| Álvaro Iglesias | Spain | Field hockey | 2016 Summer, 2020 Summer, 2024 Summer | |
| Arturo Iglesias | Guatemala | Shooting | 1976 Summer, 1980 Summer, 1984 Summer | |
| Belén Iglesias | Spain | Field hockey | 2020 Summer, 2024 Summer | |
| Daniel Iglesias | Argentina | Wrestling | 1988 Summer | |
| Evaristo Iglesias | Cuba | Athletics | 1956 Summer | |
| Fadrique Iglesias | Bolivia | 2004 Summer, 2008 Summer | |
| Francisco Iglesias | Spain | Wrestling | 1984 Summer, 1988 Summer, 1992 Summer | |
| Horacio Iglesias | Argentina | Bobsleigh | 1928 Winter | |
| José Antonio Iglesias | Spain | Field hockey | 1988 Summer, 1992 Summer | |
| Leire Iglesias | Judo | 2008 Summer | |
| Mauro Iglesias [ Wikidata ] | Argentina | Skateboarding | 2024 Summer | |
| Misael Iglesias | Cuba | Handball | 2000 Summer | |
| Rafael Iglesias | Argentina | Bobsleigh | 1928 Winter | |
| Rafael Iglesias | Sailing | 1928 Summer, 1936 Summer | |
| Rafael Iglesias | Boxing | 1948 Summer | |
| Roniel Iglesias | Cuba | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Tony Iglesias | Bolivia | Diving | 1996 Summer | |
| Yosvel Iglesias | Cuba | Rowing | 2004 Summer | |
| Maxim Iglinsky | Kazakhstan | Road cycling | 2004 Summer, 2008 Summer | |
| Anikó Iglói | Hungary | Alpine skiing | 1948 Winter | |
| Mihály Iglói | Athletics | 1936 Summer | |
| José Ignacio | Spain | Football | 1996 Summer | |
| Judit Ignacio | Swimming | 2012 Summer, 2016 Summer | |
| Sonia de Ignacio | Field hockey | 1996 Summer, 2000 Summer | |
| Krzysztof Ignaczak | Poland | Volleyball | 2004 Summer, 2008 Summer, 2012 Summer | |
| Doina Ignat | Romania | Rowing | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Mihaela Ignat | Handball | 2000 Summer | |
| Algis Ignatavicius | Australia | Basketball | 1956 Summer | |
| Aleksandr Ignatenko | Soviet Union, Unified Team, Russia | Wrestling | 1988 Summer, 1992 Summer, 1996 Summer | |
| Vladimir Ignatenko [ Wikidata ] | Soviet Union | Sailing | 1980 Summer | |
| Ilia Ignatev | Kyrgyzstan | 2012 Summer | |
| Mikhail Ignatiev | Russia | Track cycling | 2004 Summer, 2008 Summer | |
| Viktors Ignatjevs | Latvia | Ice hockey | 2002 Winter | |
| Andrey Ignatov | Russia | Athletics | 1996 Summer | |
| Evgeni Ignatov | Bulgaria | 1988 Summer, 1992 Summer | |
| Hristo Ignatov | Wrestling | 1972 Summer | |
| Yani Ignatov | Rowing | 1980 Summer | |
| Natalya Ignatova | Russia | Athletics | 2000 Summer | |
| Xeniya Ignatova [ Wikidata ] | Kazakhstan | Swimming | 2024 Summer | |
| Aleksei Ignatovich | Belarus | Artistic gymnastics | 2008 Summer | |
| Ardalion Ignatyev | Soviet Union | Athletics | 1952 Summer, 1956 Summer | |
| Natalya Ignatyeva | Kazakhstan | Water polo | 2000 Summer, 2004 Summer | |
| Nina Ignatyeva | Soviet Union | Luge | 1972 Winter | |
| Vladimir Ignjatijević | Yugoslavia | Canoe sprint | 1964 Summer | |
| Nevena Ignjatović | Serbia | Alpine skiing | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Vera Ignjatovic | Australia | Handball | 2000 Summer | |
| James Igohe | Tanzania | Athletics | 1984 Summer | |
| Mikhail Igolnikov | Russian Olympic Committee | Judo | 2020 Summer | |
| Andrei Igorov | Romania | Canoe sprint | 1964 Summer | |
| Aleski Igraev | Unified Team, Ukraine | 1992 Summer, 1996 Summer | |
| Konstantin Igropulo | Russia | Handball | 2008 Summer | |
| Tadahito Iguchi | Japan | Baseball | 1996 Summer | |
| Abdalaati Iguider | Morocco | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Viktor Igumenov | Soviet Union | Wrestling | 1968 Summer, 1972 Summer | |
| Samuel Igun | Nigeria | Athletics | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| Andre Iguodala | United States | Basketball | 2012 Summer | |
| Masaji Iguro | Japan | Ski jumping | 1936 Winter | |
| Anthony Igwe | Nigeria | Football | 1968 Summer | |
| Marianne Ihalainen | Finland | Ice hockey | 1998 Winter | |
| Katsuhiko Ihara | Japan | Rowing | 1964 Summer | |
| Larbi Ahardane | Morocco | Football | 1972 Summer | |
| Sándor Iharos | Hungary | Athletics | 1952 Summer, 1960 Summer | |
| Kálmán Ihász | Football | 1964 Summer | |
| Kornélia Ihász | Speed skating | 1964 Winter | |
| Ernst Ihbe | Germany | Track cycling | 1936 Summer | |
| Chiaka Lauretta Ihebom | Nigeria | Handball | 1992 Summer | |
| Mary Ihedioha | 1992 Summer | |
| Emmanuel Ihemeje | Italy | Athletics | 2020 Summer, 2024 Summer | |
| Chinwendu Ihezuo | Nigeria | Football | 2024 Summer | |
| Andreas Ihle | Germany | Canoe sprint | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Heini Ihle | West Germany | Ski jumping | 1968 Winter | |
| Nico Ihle | Germany | Speed skating | 2010 Winter, 2014 Winter, 2018 Winter | |
| Robert Ihly | Athletics | 1992 Summer, 1996 Summer, 2000 Summer | |
| Myroslav Ihnatyuk | Unified Team, Ukraine | Shooting | 1992 Summer, 1996 Summer | |
| Mohamed Ihsan | Egypt | Weightlifting | 2004 Summer | |
| Atsuto Iida | Japan | Water polo | 2016 Summer | |
| Nobuyuki Iida | Handball | 1972 Summer | |
| Ran Iida | Snowboarding | 2002 Winter | |
| Takako Iida | Volleyball | 1972 Summer, 1976 Summer | |
| Hideo Iijima | Athletics | 1964 Summer, 1968 Summer | |
| Keiki Iijima | 1964 Summer | |
| Kenji Iijima | Field hockey | 1960 Summer | |
| Makoto Iijima | Track cycling | 2000 Summer, 2004 Summer, 2008 Summer | |
| Manami Iijima [ Wikidata ] | Guam | Triathlon | 2024 Summer | |
| Yoichi Iijima | Japan | Sailing | 2008 Summer | |
| Kazuki Iimura | Fencing | 2024 Summer | |
| Yoshio Iimuro | Athletics | 1952 Summer | |
| Shibuki Iitsuka | Sailing | 2020 Summer, 2024 Summer | |
| Minoru Iizuka | Wrestling | 1956 Summer | |
| Shōta Iizuka | Athletics | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Tomohiro Iizuka [ Wikidata ] | Baseball | 2000 Summer | |
| Bruce Ijirighwo | Nigeria | Athletics | 1972 Summer | |
| César Injoque | Peru | Shooting | 1948 Summer | |
| Juma Ikangaa | Tanzania | Athletics | 1984 Summer, 1988 Summer, 1992 Summer | |
| Laura Ikauniece | Latvia | 2012 Summer, 2016 Summer | |
| Siololovau Ikavuka | Tonga | 1988 Summer | |
| Hiroyuki Ikawa | Japan | Shooting | 2020 Summer | |
| Sydney Ikebaku | Nigeria | Weightlifting | 1980 Summer | |
| Hitoshi Ikebe | Japan | Art competitions | 1932 Summer | |
| Hiromi Ikeda | Football | 2004 Summer, 2008 Summer | |
| Kazuko Ikeda | Alpine skiing | 1998 Winter | |
| Ken Ikeda | Canada | Artistic gymnastics | 2004 Summer | |
| Kenzo Ikeda | Japan | Rowing | 1932 Summer | |
| Koki Ikeda | Athletics | 2020 Summer, 2024 Summer | |
| Kotaro Ikeda | Art competitions | 1932 Summer | |
| Kumiko Ikeda | Athletics | 2008 Summer | |
| Megumi Ikeda | Fencing | 2004 Summer, 2008 Summer | |
| Mitsuka Ikeda | Artistic gymnastics | 1956 Summer | |
| Mitsuo Ikeda | Wrestling | 1956 Summer | |
| Mizuki Ikeda | Track cycling | 2024 Summer | |
| Naohiro Ikeda | Volleyball | 1964 Summer | |
| Richard Ikeda | Canada | Artistic gymnastics | 1996 Summer | |
| Sakiko Ikeda | Japan | Football | 2020 Summer | |
| Shintaro Ikeda | Badminton | 2008 Summer, 2012 Summer | |
| Tadashi Ikeda | Sailing | 1988 Summer | |
| Tye Ikeda [ Wikidata ] | Canada | Shooting | 2024 Summer | |
| Yuhachi Ikeda | Japan | Art competitions | 1932 Summer, 1936 Summer | |
| Yukiko Ikeda | Archery | 1992 Summer | |
| Yuta Ikeda | Golf | 2016 Summer | |
| Pius Ikedia | Nigeria | Football | 2000 Summer | |
| Rikako Ikee | Japan | Swimming | 2016 Summer, 2020 Summer, 2024 Summer | |
| Anthony Ikegu | Kenya | Boxing | 1988 Summer | |
| Ayaka Ikehara | Japan | Handball | 2020 Summer | |
| Hiroshi Ikehata | Weightlifting | 1996 Summer, 2000 Summer | |
| Kanae Ikehata | Fencing | 2012 Summer | |
| Piet Ikelaar | Netherlands | Road cycling, Track cycling | 1920 Summer | |
| Evangeleen Ikelap | Federated States of Micronesia | Athletics | 2004 Summer | |
| Maria Ikelap | 2008 Summer | |
| Kazuhiko Ikematsu | Japan | Wrestling | 2004 Summer, 2008 Summer | |
| Nagisa Ikemoto | Swimming | 2020 Summer, 2024 Summer | |
| Takashi Ikenoue | Handball | 1984 Summer | |
| Daisuke Ikeshima | Athletics | 1996 Summer, 2000 Summer | |
| Yukio Iketani | Artistic gymnastics | 1988 Summer, 1992 Summer | |
| Khumiso Ikgopoleng | Botswana | Boxing | 2004 Summer, 2008 Summer | |
| Joshua Ikhaghomi | Nigeria | Swimming | 1992 Summer | |
| Kadiri Ikhana | Football | 1980 Summer | |
| Isaac Ikhouria | Boxing | 1972 Summer | |
| Yeldos Ikhsangaliyev | Kazakhstan | Judo | 2004 Summer, 2008 Summer | |
| Austin Ikin | South Africa | Rowing | 1948 Summer | |
| Hans Iklé | Switzerland | Equestrian jumping | 1936 Summer | |
| Silvia Iklé | Equestrian dressage | 2004 Summer | |
| Mohamed Madzli Ikmar | Malaysia | Field hockey | 2000 Summer | |
| Danilo Ikodinović | Serbia and Montenegro | Water polo | 2000 Summer, 2004 Summer | |
| Heikki Ikola | Finland | Biathlon | 1972 Winter, 1976 Winter, 1980 Winter | |
| Willard Ikola | United States | Ice hockey | 1956 Winter | |
| Yasuo Ikoma | Japan | Handball | 1984 Summer | |
| Johanna Ikonen | Finland | Ice hockey | 1998 Winter | |
| Pentti Ikonen | Swimming | 1952 Summer | |
| Väinö Ikonen | Wrestling | 1924 Summer | |
| Kirill Ikonnikov | Russia | Athletics | 2008 Summer, 2012 Summer | |
| Victor Ikpeba | Nigeria | Football | 1996 Summer | |
| Samuel Ikpefan [ Wikidata ] | Cross country skiing | 2022 Winter | |
| Yuki Ikari | Japan | Swimming | 2020 Summer | |
| Takhmina Ikromova | Uzbekistan | Rhythmic gymnastics | 2024 Summer | |
| Ayodelé Ikuesan | France | Athletics | 2012 Summer | |
| Yasuhiro Ikuta | Japan | Alpine skiing | 2006 Winter | |
| Menachem Ilan | Israel | Shooting | 1992 Summer | |
| Magda Ilands | Belgium | Athletics | 1988 Summer | |
| Moa Ilar | Sweden | Cross country skiing | 2022 Winter | |
| Jake Ilardi | United States | Skateboarding | 2020 Summer | |
| David Ilariani | Georgia | Athletics | 2004 Summer, 2008 Summer, 2012 Summer | |
| Lenka Ilavská | Slovakia | Road cycling, Cycling mountain bike | 1996 Summer | |
| Ján Ilavský | Czechoslovakia | Cross country skiing | 1972 Winter | |
| Mircea Ilca | Romania | Shooting | 1980 Summer | |
| Irina Ilchenko | Soviet Union, Unified Team, Russia | Volleyball | 1988 Summer, 1992 Summer, 1996 Summer | |
| Larisa Ilchenko | Russia | Marathon swimming | 2008 Summer | |
| Marieta Ilcu | Romania | Athletics | 1992 Summer | |
| Cenk İldem | Turkey | Wrestling | 2012 Summer, 2016 Summer, 2020 Summer | |
| Roger Ilegems | Belgium | Track cycling | 1984 Summer | |
| Sandrine Ilendou | Gabon | Judo | 2008 Summer | |
| Katica Ileš | Yugoslavia | Handball | 1980 Summer | |
| Salim Iles | Algeria | Swimming | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Mitchell Iles | Australia | Shooting | 2016 Summer, 2024 Summer | |
| Amanda Ilestedt | Sweden | Football | 2020 Summer | |
| Michael Ilgner | Germany | Water polo | 1996 Summer | |
| Hatice Kübra İlgün | Turkey | Taekwondo | 2020 Summer, 2024 Summer | |
| Dilnigar Ilhamjan | China | Cross country skiing | 2022 Winter | |
| Musa Ilhan | Australia | Wrestling | 1992 Summer, 2000 Summer | |
| Athanasios Iliadis | Greece | Boxing | 1976 Summer | |
| Dionysios Iliadis | Judo | 2004 Summer | |
| Ilias Iliadis | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Konstantinos Iliadis | Cyprus | Wrestling | 1992 Summer | |
| Nikos Iliadis | Greece | Weightlifting | 1972 Summer, 1976 Summer, 1980 Summer, 1984 Summer | |
| Pelopidas Iliadis | Shooting | 1984 Summer | |
| Vassilios Iliadis | Judo | 2004 Summer | |
| Periklis Ilias | Cycling mountain bike | 2012 Summer, 2020 Summer | |
| Ivan Ilić | Serbia and Montenegro | Volleyball | 2004 Summer | |
| Momir Ilić | Serbia | Handball | 2012 Summer | |
| Ognjen Ilić | Road cycling | 2024 Summer | |
| Prvoslav Ilić | Yugoslavia | Wrestling | 1980 Summer | |
| Slađan Ilić | Alpine skiing | 1992 Winter | |
| Vanja Ilić | Swimming | 1948 Summer | |
| Velimir Ilić | Athletics | 1952 Summer | |
| Zoran Ilić | Hungary | Handball | 2024 Summer | |
| Andrew Ilie | Australia | Tennis | 2000 Summer | |
| Gheorghe Ilie | Romania | Boxing | 1952 Summer | |
| Laura Ilie | Shooting | 2020 Summer | |
| Carolică Ilieș | Rowing | 1980 Summer | |
| Mihai Iliescu | Bobsleigh | 2006 Winter | |
| Atanas Iliev | Bulgaria | Ice hockey | 1976 Winter | |
| Bozhidar Iliev | Artistic gymnastics | 1972 Summer | |
| Brunko Iliev | Volleyball | 1972 Summer | |
| Georgi Iliev | Ice hockey | 1976 Winter | |
| Hristo Iliev | Football | 1960 Summer | |
| Hristo Iliev | Volleyball | 1980 Summer | |
| Ilian Iliev | Equestrian eventing | 1992 Summer | |
| Ilian Iliev | Weightlifting | 1996 Summer | |
| Ivan Iliev | Wrestling | 1972 Summer | |
| Peter Iliev | Luge | 2006 Winter, 2010 Winter | |
| Velizar Iliev | United States | Modern pentathlon | 2000 Summer | |
| Vladimir Iliev | Bulgaria | Biathlon | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Ivelina Ilieva | Judo | 2020 Summer | |
| Marieta Ilieva | Artistic gymnastics | 1972 Summer | |
| Tsvetanka Ilieva | Athletics | 1988 Summer | |
| Valentina Ilieva | Volleyball | 1980 Summer | |
| Yoana Ilieva [ Wikidata ] | Fencing | 2024 Summer | |
| Zhaneta Ilieva | Rhythmic gymnastics | 2000 Summer, 2004 Summer | |
| Serena Iliffe | Great Britain | Alpine skiing | 1976 Winter | |
| Valentina Iliffe | 1972 Winter, 1976 Winter, 1980 Winter | |
| Jože Ilija | Yugoslavia | 1956 Winter | |
| Joshua Ilika Brenner | Mexico | Swimming | 2000 Summer, 2004 Summer | |
| Adrian Ililau | Palau | Athletics | 2020 Summer | |
| Dmitry Ilinikh | Russia | Volleyball | 2012 Summer | |
| Elena Ilinykh | Figure skating | 2014 Winter | |
| Kristina Ilinykh | Diving | 2016 Summer | |
| Iordanis Ilioudis | Greece | Weightlifting | 1984 Summer | |
| Ana Iliuță | Romania | Rowing | 1980 Summer | |
| Eric Iljans | Sweden | Freestyle skiing | 2010 Winter | |
| Magdalena Iljans | 2010 Winter | |
| Dagnis Iļjins | Latvia | Canoe sprint | 2016 Summer | |
| Anna Iljuštšenko | Estonia | Athletics | 2008 Summer, 2012 Summer | |
| Helmut Ilk | Austria | Swimming | 1960 Summer | |
| Ezaria Ilkhanoff | Iran | Boxing | 1960 Summer | |
| Harri Ilkka | Finland | Speed skating | 1992 Winter | |
| Nikolai Ilkov | Bulgaria | Canoe sprint | 1980 Summer | |
| Javier Illana | Spain | Diving | 2004 Summer, 2008 Summer, 2012 Summer | |
| Jayamini Illeperuma | Sri Lanka | Athletics | 1992 Summer | |
| Anna Illés | Hungary | Water polo | 2016 Summer, 2020 Summer | |
| Julio Illescas | Guatemala | Road cycling | 1988 Summer | |
| Karin Illgen | East Germany | Athletics | 1968 Summer | |
| Aleksander Illi | Estonia | Basketball | 1936 Summer | |
| Hassane Illiassou | Niger | Athletics | 1992 Summer | |
| Pavlo Illichov | Ukraine | Swimming | 2004 Summer | |
| Gaston d'Illiers | France | Art competitions | 1932 Summer | |
| Marianne Illing | Canada | Water polo | 2004 Summer | |
| Matt Illingworth | Great Britain | Road cycling, Track cycling | 1992 Summer, 1996 Summer | |
| Philip Illingworth | Canada | Judo | 1972 Summer | |
| Grégoire Illorson | Cameroon | Athletics | 1980 Summer | |
| Pierpaolo Illuminati [ Wikidata ] | Italy | Baseball | 1996 Summer | |
| Leonardo Illut | Philippines | Athletics | 1984 Summer | |
| Miklós Illyés | Hungary | Judo | 2000 Summer | |
| Gary Ilman | United States | Swimming | 1964 Summer | |
| Sakari Ilmanen | Finland | Figure skating | 1920 Summer | |
| Christian Ilmoni | Sailing | 1948 Summer, 1952 Summer | |
| Tauno Ilmoniemi | Diving, Artistic gymnastics | 1912 Summer | |
| Kim Il-nam | North Korea | Football | 1976 Summer | |
| Yavuz İlnam | Turkey | Shooting | 2016 Summer | |
| Ham Il-nyon [ Wikidata ] | North Korea | Rowing | 1972 Summer | |
| Christian Iloanusi | Nigeria | Wrestling | 1988 Summer | |
| Jouni Ilomäki | Finland | 1984 Summer, 1988 Summer | |
| Mikko Ilonen | Golf | 2016 Summer | |
| Tiago Ilori | Portugal | Football | 2016 Summer | |
| Nikolay Ilov | Bulgaria | Basketball | 1956 Summer, 1960 Summer | |
| Han Il-ryong [ Wikidata ] | North Korea | Athletics | 2024 Summer | |
| Stefan Ilsanker | West Germany | Luge | 1988 Winter | |
| Ilsinho | Brazil | Football | 2008 Summer | |
| Joshua Ilustre | Guam | Athletics | 2016 Summer | |
| Kristjan Ilves | Estonia | Nordic combined | 2014 Winter, 2018 Winter, 2022 Winter | |
| Anastasia Ilyankova | Russian Olympic Committee | Artistic gymnastics | 2020 Summer | |
| Pavel Ilyashenko | Kazakhstan | Modern pentathlon | 2012 Summer, 2016 Summer, 2020 Summer | |
| Niyaz Ilyasov | Russian Olympic Committee | Judo | 2020 Summer | |
| Talgat Ilyasov | Australia | Wrestling | 2016 Summer | |
| Yury Ilyasov | Soviet Union | Athletics | 1952 Summer | |
| Vlada Ilyenko | Russia | Sailing | 2004 Summer | |
| Irina Ilyenkova | Belarus | Rhythmic gymnastics | 2000 Summer | |
| Ferenc Ilyés | Hungary | Handball | 2004 Summer, 2012 Summer | |
| Ildikó Ilyés | Athletics | 1992 Summer | |
| Leonid Ilyichev | Soviet Union | Swimming | 1968 Summer | |
| Anatoli Ilyin | Football | 1952 Summer, 1956 Summer | |
| Boris Ilyin | Sailing | 1956 Summer | |
| Ilya Ilyin | Kazakhstan | Weightlifting | 2008 Summer, 2012 Summer | |
| Vasily Ilyin | Soviet Union | Handball | 1972 Summer, 1976 Summer | |
| Viktor Ilyin | Track cycling | 1956 Summer | |
| Viktor Ilyin | Luge | 1972 Winter | |
| Lyubov Ilyina | Athletics | 1972 Summer | |
| Nadezhda Ilyina | 1972 Summer, 1976 Summer | |
| Vera Ilyina | Unified Team, Russia | Diving | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Yekaterina Ilyina | Russia, Russian Olympic Committee | Handball | 2016 Summer, 2020 Summer | |
| Yelena Ilyina | Soviet Union | Speed skating | 1988 Winter | |
| Pavel Ilyinsky | Rowing | 1968 Summer | |
| Valery Ilyinykh | Artistic gymnastics | 1968 Summer | |
| Kseniya Ilyuchshenko | Kazakhstan | Volleyball | 2008 Summer | |
| Yekaterina Ilyukhina | Russia | Snowboarding | 2010 Winter, 2014 Winter | |
| Yelena Ilyukhina | Kazakhstan | Handball | 2008 Summer | |
| Sergey Ilyushchenko | Speed skating | 2002 Winter | |
| Oksana Ilyushkina | Ukraine | Athletics | 2004 Summer | |
| Erwin Ilz | Austria | Art competitions | 1936 Summer | |
| Im Ae-ji | South Korea | Boxing | 2020 Summer, 2024 Summer | |
| Im Chae-bin | Track cycling | 2016 Summer | |
| Im Dae-won | Wrestling | 2004 Summer | |
| Danelle Im | Korea Team | Ice hockey | 2018 Winter | |
| Im Do-heon | South Korea | Volleyball | 1992 Summer, 1996 Summer | |
| Im Dong-gi | Weightlifting | 1996 Summer | |
| Im Dong-hyun | Archery | 2004 Summer, 2008 Summer, 2012 Summer | |
| Im Dong-sil | Athletics | 1964 Summer | |
| Im Eun-ju | 1988 Summer | |
| Im Geum-ja | Swimming | 1964 Summer | |
| Im Gyeong-sun | Alpine skiing | 1960 Winter | |
| Im Ha-na | Shooting | 2024 Summer | |
| Im Ho-dam | Volleyball | 1976 Summer | |
| Im Ho-geun | Athletics | 1964 Summer | |
| Im Hui-sik | Archery | 1992 Summer | |
| Im Hwa-dong | Athletics | 1956 Summer | |
| Im Hye-jin | Artistic gymnastics | 1988 Summer | |
| Im Jae-man | Rowing | 1988 Summer | |
| Im Jung-bin | Boxing | 2000 Summer | |
| Im Jin-myeong | Rowing | 2000 Summer | |
| Im Jyoung-hwa | Weightlifting | 2008 Summer | |
| Im Kwang-jae | Wrestling | 1960 Summer | |
| Im Ri-bin | North Korea | Speed skating | 1984 Winter, 1988 Winter | |
| Im Sang-jo | South Korea | Road cycling | 1952 Summer, 1956 Summer | |
| Im Sung-jae | Golf | 2020 Summer | |
| Im Yong-su | North Korea | Weightlifting | 2000 Summer, 2004 Summer, 2008 Summer | |
| Im Yun-ji | South Korea | Diving | 1996 Summer | |
| Felix Imadiyi | Nigeria | Athletics | 1980 Summer | |
| Osmond Imadiyi | Boxing | 1988 Summer | |
| Romain Imadouchène | France | Weightlifting | 2024 Summer | |
| Harumi Imai | Japan | Cross country skiing | 1972 Winter | |
| Hiroyuki Imai | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter | |
| Keiji Imai | Athletics | 1936 Summer | |
| Kurumi Imai | Snowboarding | 2018 Winter, 2022 Winter | |
| Masako Imai | Sailing | 1996 Summer, 2000 Summer, 2004 Summer | |
| Melo Imai | Snowboarding | 2006 Winter | |
| Miho Imai | Cycling mountain bike | 2020 Summer | |
| Miki Imai | Athletics | 2000 Summer | |
| Runa Imai | Swimming | 2016 Summer | |
| Takamasa Imai | Snowboarding | 1998 Winter | |
| Tetsuo Imai | Athletics | 1936 Summer | |
| Yusuke Imai | Speed skating | 1998 Winter, 2002 Winter, 2006 Winter | |
| Kenichi Imaizumi | Basketball | 1956 Summer, 1960 Summer | |
| Ahmed Al-Imam | Qatar | Athletics | 2000 Summer | |
| Aiza Imambek | Kazakhstan | Figure skating | 2018 Winter | |
| Yakhyo Imamov | Uzbekistan | Judo | 2012 Summer | |
| Fumio Imamura | Japan | Athletics | 1992 Summer, 2000 Summer | |
| Genki Imamura | Swimming | 2004 Summer | |
| Kimihiko Imamura | Sailing | 2016 Summer | |
| Shunsuke Imamura | Track cycling | 2024 Summer | |
| Takashi Imamura | Rowing | 1956 Summer | |
| Toshiaki Imamura | Speed skating | 1984 Winter | |
| Toshio Imamura | Weightlifting | 2004 Summer | |
| Yasushi Imamura | Equestrian jumping | 1932 Summer | |
| Asset Imanbayev | Kazakhstan | Wrestling | 2008 Summer | |
| Makoto Imaoka | Japan | Baseball | 1996 Summer | |
| Jorge Imaz | Argentina | Rowing | 1972 Summer | |
| Josef Imbach | Switzerland | Athletics | 1920 Summer, 1924 Summer | |
| Charles Imbault | France | Field hockey | 1936 Summer | |
| Paul Imbault | 1936 Summer | |
| François Imbeau-Dulac | Canada | Diving | 2012 Summer | |
| Charles Imbert | France | Rowing | 1976 Summer, 1980 Summer, 1984 Summer | |
| Évelyne Imbert | 1984 Summer | |
| Louis Imbert [ Wikidata ] | Artistic gymnastics | 1900 Summer | |
| Heinz Imboden | Switzerland | Road cycling | 1984 Summer | |
| Race Imboden | United States | Fencing | 2012 Summer, 2016 Summer, 2020 Summer | |
| Urs Imboden | Switzerland, Moldova | Alpine skiing | 2002 Winter, 2010 Winter | |
| Raffaella Imbriani | Germany | Judo | 2004 Summer | |
| Jacques d'Imecourt | France | Shooting | 1924 Summer | |
| Adam Imer | Brazil | Field hockey | 2016 Summer | |
| Chris Imes | United States | Ice hockey | 1994 Winter | |
| Lindy Imgrund | Australia | Shooting | 2000 Summer | |
| Darrall Imhoff | United States | Basketball | 1960 Summer | |
| Fred Imhoff | Netherlands | Sailing | 1972 Summer | |
| Juan Imhoff | Argentina | Rugby sevens | 2016 Summer | |
| Rachel Imison | Australia | Field hockey | 2000 Summer, 2004 Summer, 2008 Summer | |
| Dae Imlani | Philippines | Swimming | 1972 Summer | |
| Erik Imler | United States | Football | 1992 Summer | |
| Jan-Olaf Immel | Germany | Handball | 2004 Summer | |
| Dan Immerfall | United States | Speed skating | 1976 Winter, 1980 Winter | |
| Arvīds Immermanis | Latvia | Road cycling | 1936 Summer | |
| Matthew Immers [ Wikidata ] | Netherlands | Beach volleyball | 2024 Summer | |
| Peter Immesberger | West Germany | Weightlifting | 1984 Summer, 1988 Summer | |
| Antero Immonen | Finland | Ski jumping | 1964 Winter | |
| Jarkko Immonen | Ice hockey | 2010 Winter, 2014 Winter | |
| Tamaz Imnaishvili | Soviet Union, Georgia | Shooting | 1980 Summer, 1988 Summer, 1996 Summer | |
| Caroline Imoberdorf | Switzerland | Artistic swimming | 1992 Summer | |
| Chidi Imoh | Nigeria | Athletics | 1984 Summer, 1988 Summer, 1992 Summer | |
| Dusty Imoo | Japan | Ice hockey | 1998 Winter | |
| Naoko Imoto | Swimming | 1996 Summer | |
| Melvin Imoudu | Germany | 2024 Summer | |
| Aristote Ndombe Impelenga [ Wikidata ] | Democratic Republic of the Congo | 2024 Summer | |
| Christophe Impens | Belgium | Athletics | 1996 Summer | |
| Micaela Imperatori | Italy | Rhythmic gymnastics | 1988 Summer | |
| Daryl Impey | South Africa | Road cycling | 2012 Summer, 2016 Summer | |
| Taina Impiö | Finland | Cross country skiing | 1976 Winter | |
| Isarapa Imprasertsuk | Thailand | Shooting | 2020 Summer | |
| Saša Imprić | Croatia | Swimming | 2004 Summer, 2008 Summer | |
| Muhammad Imran | Pakistan | Field hockey | 2008 Summer, 2012 Summer | |
| Tariq Imran | 2000 Summer | |
| Shahin Imranov | Azerbaijan | Boxing | 2004 Summer, 2008 Summer | |
| Imranur Rahman | Bangladesh | Athletics | 2024 Summer | |
| Bela Imre | Romania | Alpine skiing | 1948 Winter | |
| Bence Imre | Hungary | Handball | 2024 Summer | |
| Géza Imre | Fencing | 1996 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Petr Imre | Czech Republic | Rowing | 2004 Summer | |
| Kayla Imrie | New Zealand | Canoe sprint | 2016 Summer | |
| Kurtis Imrie | 2020 Summer, 2024 Summer | |
| Megan Imrie | Canada | Biathlon | 2010 Winter, 2014 Winter | |
| Ahmed Imthiyaz | Maldives | Swimming | 1992 Summer | |
| Abdulselam İmük | Turkey | Athletics | 2020 Summer | |
| In Kyo-don | South Korea | Taekwondo | 2020 Summer | |
| Kyoko Ina | United States | Figure skating | 1994 Winter, 1998 Winter, 2002 Winter | |
| Akari Inaba | Japan | Water polo | 2020 Summer | |
| Atsunori Inaba | Baseball | 2008 Summer | |
| Hiroshi Inaba | Bobsleigh | 1972 Winter | |
| Kazuyo Inaba | Swimming | 1976 Summer | |
| Reo Inaba [ Wikidata ] | Surfing | 2024 Summer | |
| Yusuke Inaba | Water polo | 2020 Summer, 2024 Summer | |
| Matthew Inabinet | Australia | Shooting | 2004 Summer, 2008 Summer | |
| Vreni Inäbnit | Switzerland | Alpine skiing | 1968 Winter | |
| Daniela Inácio | Portugal | Marathon swimming | 2008 Summer | |
| José António Inácio | Angola | Judo | 1988 Summer | |
| Rubén Inácio | Athletics | 1980 Summer | |
| Ayako İnada [ Wikidata ] | Japan | Rhythmic gymnastics | 2000 Summer | |
| Etsuko Inada | Figure skating | 1936 Winter | |
| Masaru Inada | Skeleton | 2002 Winter, 2006 Winter | |
| Noriko Inada | Swimming | 1992 Summer, 2000 Summer, 2004 Summer | |
| Yoko Inada | Shooting | 1996 Summer, 2000 Summer, 2004 Summer | |
| Choi In-ae [ Wikidata ] | North Korea | Road cycling | 1992 Summer | |
| José Inagaki | Peru | Wrestling | 1984 Summer | |
| Mamoru Inagaki | Japan | Shooting | 1988 Summer, 1992 Summer | |
| Saori Inagaki | Rhythmic gymnastics | 2008 Summer | |
| Manelle Inaho | France | 2024 Summer | |
| Fabienne In-Albon | Switzerland | Golf | 2016 Summer | |
| Khurram Inam | Pakistan | Shooting | 2000 Summer, 2004 Summer, 2012 Summer | |
| Mone Inami | Japan | Golf | 2020 Summer | |
| Junichi Inamoto | Football | 2000 Summer | |
| Narihiro Inamura | Track cycling | 2000 Summer | |
| Hirotsugu Inanami | Equestrian jumping | 1936 Summer | |
| Rita Ináncsi | Hungary | Athletics | 1992 Summer, 1996 Summer, 2000 Summer | |
| Larissa Inangorore | Burundi | Swimming | 2004 Summer | |
| Michiyo Inaoka | Japan | Athletics | 1972 Summer | |
| Hidenori Inatsu | Ice hockey | 1960 Winter, 1964 Winter | |
| Amit Inbar | Israel | Sailing | 1992 Summer, 2000 Summer | |
| Allan Ince | Barbados | Athletics | 1988 Summer | |
| Ariana Ince | United States | 2020 Summer | |
| İzzet İnce | Turkey | Weightlifting | 2004 Summer, 2008 Summer | |
| Kimberly Ince | Grenada | Swimming | 2020 Summer | |
| Anna Incerti | Italy | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Zac Incerti | Australia | Swimming | 2020 Summer, 2024 Summer | |
| Kwuanfah Inchareon | Thailand | Athletics | 1996 Summer | |
| Fernando Inchauste | Bolivia | Canoe sprint, Shooting | 1964 Summer, 1968 Summer, 1972 Summer | |
| Jin In-chol | North Korea | Football | 1976 Summer | |
| Jessica Inchude | Guinea-Bissau, Portugal | Athletics | 2016 Summer, 2024 Summer | |
| Kriszta Incze | Romania | Wrestling | 2020 Summer, 2024 Summer | |
| Eka Purnama Indah | Indonesia | Diving | 2000 Summer | |
| Margaret Indakala | Kenya | Volleyball | 2000 Summer | |
| Moritz Inderbitzin | Switzerland | Wrestling | 1948 Summer | |
| Tandi Indergaard | Great Britain | Diving | 2004 Summer, 2008 Summer | |
| Linda Indergand | Switzerland | Cycling mountain bike | 2016 Summer, 2020 Summer | |
| Julius Indongo | Namibia | Boxing | 2008 Summer | |
| Anežka Indráčková [ Wikidata ] | Czech Republic | Ski jumping | 2022 Winter | |
| Karolína Indráčková [ Wikidata ] | 2022 Winter | |
| Miks Indrašis | Latvia | Ice hockey | 2014 Winter, 2022 Winter | |
| Arnolds Indriksons | Russia | Athletics | 1912 Summer | |
| Sri Indriyani | Indonesia | Weightlifting | 2000 Summer | |
| Stanislav Indruch | Czechoslovakia | Artistic gymnastics | 1920 Summer, 1924 Summer | |
| Tomáš Indruch | Czech Republic | Canoe slalom | 2000 Summer, 2004 Summer | |
| Miguel Induráin | Spain | Road cycling | 1984 Summer, 1996 Summer | |
| Jorge Inés | Guatemala | 1968 Summer | |
| Andrei Inešin | Unified Team, Estonia | Shooting | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Chris Ineson | New Zealand | Field hockey | 1972 Summer | |
| Tony Ineson | 1976 Summer | |
| Sim Iness | United States | Athletics | 1952 Summer | |
| Marlene Infante | Cuba | Fencing | 1972 Summer | |
| Antonio Infantino | Italy | Athletics | 2020 Summer | |
| Emily Infeld | United States | 2016 Summer | |
| Fabio Infimo | Italy | Rowing | 2016 Summer | |
| Evelyn Inga [ Wikidata ] | Peru | Athletics | 2024 Summer | |
| Diane Ingabire | Rwanda | Road cycling | 2024 Summer | |
| Fred Ingaldson | Canada | Basketball | 1964 Summer | |
| Thomas Ingalsbe | United States | Weightlifting | 1996 Summer | |
| Gordon Ingate | Australia | Sailing | 1972 Summer | |
| Mikaela Ingberg | Finland | Athletics | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Eugen Ingebretsen | Norway | Artistic gymnastics | 1908 Summer, 1912 Summer | |
| Olaf Ingebretsen | 1912 Summer | |
| Filip Ingebrigtsen | Athletics | 2016 Summer, 2020 Summer | |
| Henrik Ingebrigtsen | 2012 Summer, 2016 Summer | |
| Jakob Ingebrigtsen | 2020 Summer, 2024 Summer | |
| Tommy Ingebrigtsen | Ski jumping | 2002 Winter, 2006 Winter | |
| Magnar Ingebrigtsli | Cross country skiing | 1956 Winter | |
| Frank Ingels | United States | Art competitions | 1932 Summer | |
| Kathleen Ingels | 1932 Summer | |
| Charlotte Ingemann | Denmark | Equestrian dressage | 1972 Summer | |
| Ida Ingemarsdotter | Sweden | Cross country skiing | 2010 Winter, 2014 Winter, 2018 Winter | |
| Vagn Ingerslev | Denmark | Tennis | 1912 Summer | |
| Warren Ingersoll | United States | Field hockey | 1932 Summer | |
| Magnus Ingesson | Sweden | Cross country skiing | 2002 Winter | |
| Dane Ingham | New Zealand | Football | 2020 Summer | |
| Royden Ingham | United States | Track cycling | 1932 Summer | |
| Lisa Ingildeeva | Germany | Rhythmic gymnastics | 2004 Summer | |
| Ingimundur Ingimundarson | Iceland | Handball | 2008 Summer, 2012 Summer | |
| Barbara Ingiro | Papua New Guinea | Athletics | 1984 Summer | |
| Paul Ingle | Great Britain | Boxing | 1992 Summer | |
| Sophie Ingle | Football | 2020 Summer | |
| Joe Ingles | Australia | Basketball | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Veronica Inglese | Italy | Athletics | 2016 Summer | |
| Alice Ingley | Australia | Archery | 2016 Summer, 2020 Summer | |
| Hugo Inglis | New Zealand | Field hockey | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Mike Inglis | Canada | Artistic gymnastics | 1992 Summer | |
| Dominic Inglot | Great Britain | Tennis | 2016 Summer | |
| Les Ingman | Road cycling | 1952 Summer | |
| Ragna Ingólfsdóttir | Iceland | Badminton | 2008 Summer, 2012 Summer | |
| Guðmundur Ingólfsson | Swimming | 1948 Summer | |
| Borut Ingolič | Yugoslavia | Athletics | 1960 Summer | |
| Allan Ingraham | Bahamas | 1984 Summer | |
| Melissa Ingram | New Zealand | Swimming | 2008 Summer, 2012 Summer | |
| Roy Ingram | South Africa | Boxing | 1920 Summer, 1924 Summer | |
| Sheila Ingram | United States | Athletics | 1976 Summer | |
| Rémi Ingres | France | Short track speed skating | 1992 Winter | |
| Vilde Ingstad | Norway | Handball | 2024 Summer | |
| Jan Ingstrup-Mikkelsen | Denmark | Track cycling | 1964 Summer | |
| Ellen Ingvadóttir | Swimming | 1968 Summer | |
| Håvard Bentdal Ingvaldsen | Norway | Athletics | 2024 Summer | |
| Maksim Inić | Montenegro | Swimming | 2016 Summer | |
| Andrés Iniesta | Spain | Wrestling | 1992 Summer | |
| Carlos Iniesta | Sailing | 1988 Summer | |
| Vincent Inigo | France | Rugby sevens | 2016 Summer | |
| Ismael Íñiguez | Mexico | Football | 2004 Summer | |
| Collins Injera | Kenya | Rugby sevens | 2016 Summer, 2020 Summer | |
| Baglan Inkarbek | Kazakhstan | Freestyle skiing | 2014 Winter | |
| Barbara Inkpen | Great Britain | Athletics | 1968 Summer, 1972 Summer | |
| Henry Inman | Wrestling | 1920 Summer | |
| Josh Inman | United States | Rowing | 2008 Summer | |
| Toni Innauer | Austria | Ski jumping | 1976 Winter, 1980 Winter | |
| Philippus Innemee | Netherlands | Road cycling | 1924 Summer | |
| Christof Innerhofer | Italy | Alpine skiing | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Heather Innes | Australia | Athletics | 1956 Summer | |
| Kurt Innes | Canada | Track cycling | 1992 Summer | |
| Stewart Innes | Great Britain | Rowing | 2016 Summer | |
| Heinz Inniger | Switzerland | Snowboarding | 2006 Winter | |
| Jennifer Innis | Guyana | Athletics | 1980 Summer, 1984 Summer | |
| George Innocent [ Wikidata ] | Great Britain | Swimming | 1908 Summer, 1912 Summer | |
| Danilo Innocenti | Italy | Athletics | 1936 Summer | |
| Dino Innocenti | Ice hockey | 1948 Winter | |
| Fabio Innocenti | Volleyball | 1980 Summer | |
| Marco Innocenti | Shooting | 2000 Summer, 2004 Summer, 2016 Summer | |
| Alan Inns | Great Britain | Rowing | 1972 Summer, 1980 Summer, 1984 Summer | |
| Mateus Facho Inocêncio | Brazil | Bobsleigh, Athletics | 2002 Winter, 2004 Summer | |
| Osvaldo Inocente Filho | Handball | 1992 Summer, 1996 Summer | |
| Takako Inoguchi | Japan | Athletics | 1964 Summer | |
| Junzo Inohara | Field hockey | 1932 Summer | |
| Gen'ichirō Inokuma | Art competitions | 1936 Summer | |
| Isao Inokuma | Judo | 1964 Summer | |
| Yukio Inokuma | Shooting | 1952 Summer, 1956 Summer, 1960 Summer | |
| Yumi Inomata | Cross country skiing | 1992 Winter | |
| Arantza Inostroza [ Wikidata ] | Chile | Fencing | 2024 Summer | |
| Enrique Inostroza | Athletics | 1948 Summer | |
| Juan Inostroza | Fencing | 1976 Summer | |
| Paris Inostroza | 1996 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Raúl Inostroza | Athletics | 1952 Summer | |
| Ákos Inotay | Hungary | Rowing | 1936 Summer | |
| Arisa Inoue | Japan | Volleyball | 2024 Summer | |
| Etsuko Inoue | Tennis | 1988 Summer | |
| Junichi Inoue | Speed skating | 1992 Winter, 1994 Winter | |
| Kai Inoue [ Wikidata ] | Water polo | 2024 Summer | |
| Kaori Inoue | Volleyball | 2012 Summer | |
| Kenji Inoue | Wrestling | 2004 Summer | |
| Kikuko Inoue | Equestrian dressage | 1964 Summer, 1972 Summer, 1988 Summer | |
| Kiyoto Inoue | Canoe sprint | 1984 Summer, 1988 Summer | |
| Kōsei Inoue | Judo | 2000 Summer, 2004 Summer | |
| Masaki Inoue | Track cycling | 2004 Summer | |
| Masanori Inoue | Bobsleigh | 1998 Winter, 2002 Winter | |
| Mayumi Inoue | Softball | 1996 Summer | |
| Megumi Inoue | Shooting | 2004 Summer | |
| Osamu Inoue | Athletics | 1952 Summer | |
| Rena Inoue | Japan, United States | Figure skating | 1992 Winter, 1994 Winter, 2006 Winter | |
| Sanji Inoue | Japan | Track cycling | 1968 Summer | |
| Satoru Inoue | Athletics | 1992 Summer, 1996 Summer | |
| Setsuko Inoue | Volleyball | 1968 Summer | |
| Tomohiro Inoue | Wrestling | 2016 Summer | |
| Toshiaki Inoue | Athletics | 1972 Summer, 1976 Summer | |
| Yuzuru Inoue | Volleyball | 1988 Summer | |
| Manzura Inoyatova | Uzbekistan | Table tennis | 2004 Summer | |
| Subenrat Insaeng | Thailand | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Sergejs Inšakovs | Latvia | 1996 Summer | |
| Kim Insalaco | United States | Ice hockey | 2006 Winter | |
| Adolf Insam | Italy | 1984 Winter | |
| Alex Insam | Ski jumping | 2018 Winter | |
| Evelyn Insam | 2014 Winter, 2018 Winter | |
| Leo Insam | Ice hockey | 1994 Winter, 1998 Winter | |
| Meerit Insawang | Thailand | Diving | 2000 Summer | |
| Benjamin Insfran | Brazil | Beach volleyball | 2004 Summer | |
| Javier Insfrán | Paraguay | Rowing | 2024 Summer | |
| Steven Insixiengmay | Laos | Swimming | 2024 Summer | |
| Han In-sok | North Korea | Shooting | 1980 Summer | |
| Chalermsakdi Inswang | Thailand | 1960 Summer | |
| Ratchanok Intanon | Badminton | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Ravee Intaporn-udom | Swimming | 1996 Summer | |
| Fritz Inthaler | Austria | Road cycling | 1960 Summer | |
| Rangsam Intharachai | Thailand | Athletics | 1984 Summer | |
| Niti Intharapichai | Swimming | 1996 Summer | |
| Phathana Inthavong | Laos | 2012 Summer | |
| Santisouk Inthavong | 2016 Summer, 2020 Summer | |
| Aldis Intlers | Latvia | Bobsleigh | 1992 Winter, 1994 Winter | |
| Elisabetta Introini | Italy | Canoe sprint | 1980 Summer | |
| Takayuki Inubushi | Japan | Athletics | 2000 Summer | |
| Emi Inui | Softball | 2008 Summer | |
| Yukiko Inui | Artistic swimming | 2012 Summer, 2016 Summer, 2020 Summer | |
| Seishichi Inuma | Athletics | 1928 Summer | |
| Alison Inverarity | Australia | 1992 Summer, 1996 Summer, 2000 Summer | |
| Giovanni Invernizzi | Italy | Rowing | 1948 Summer, 1952 Summer | |
| Fubulume Inyama | Democratic Republic of the Congo | Boxing | 1984 Summer | |
| Galina Inzhuvatova | Soviet Union | Field hockey | 1980 Summer | |
| Dorcus Inzikuru | Uganda | Athletics | 2004 Summer, 2012 Summer | |
| Gloria Inzua | Mexico | Volleyball | 1968 Summer | |
| Paula Ioan | Romania | Artistic gymnastics | 1972 Summer | |
| Șerban Ioan | Athletics | 1972 Summer | |
| Virgil Ioan | 1928 Summer | |
| Viorel Ioana | Boxing | 1984 Summer | |
| Akira Ioane | New Zealand | Rugby sevens | 2016 Summer | |
| Apelu Ioane | Samoa | Boxing | 1984 Summer | |
| Rieko Ioane | New Zealand | Rugby sevens | 2016 Summer | |
| Vaipava Ioane | Samoa | Weightlifting | 2016 Summer | |
| Christina Ioannidi | Greece | 2004 Summer | |
| Georgios Ioannidis | Boxing | 1988 Summer | |
| Nikolaos Ioannidis | Rowing | 1980 Summer | |
| Spyridon Ioannidis | Boxing | 2004 Summer | |
| Stefanos Ioannidis | Wrestling | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| Mairi Ioannidou | Swimming | 1972 Summer | |
| Apostolia Ioannou | Artistic swimming | 2004 Summer | |
| Giannis Ioannou | Football | 1952 Summer | |
| Ilias Ioannou | Cyprus | Judo | 1988 Summer, 1992 Summer | |
| Kyriakos Ioannou | Athletics | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Alexandru Ioanovici | Romania | Swimming | 1996 Summer | |
| Andrei Ioanovici | Ice hockey | 1964 Winter | |
| Tony Iob | Italy | 2006 Winter | |
| Viorica Ioja | Romania | Rowing | 1984 Summer | |
| Corneliu Ion | Shooting | 1976 Summer, 1980 Summer, 1984 Summer, 1988 Summer | |
| Cristian Ion | Volleyball | 1972 Summer | |
| Diana Ana Maria Ion | Athletics | 2024 Summer | |
| Carmen Ionesco | Romania, Canada | 1972 Summer, 1984 Summer | |
| Alexandru Ionescu | Romania | Bobsleigh | 1932 Winter, 1936 Winter | |
| Atanasia Ionescu | Artistic gymnastics | 1960 Summer, 1964 Summer | |
| Claudiu Eugen Ionescu | Handball | 1980 Summer | |
| Costel Ionescu | Bobsleigh | 1976 Winter | |
| Eduard Ionescu | Table tennis | 2024 Summer | |
| Elisabeta Ionescu | Handball | 1976 Summer | |
| Florin Ionescu | Athletics | 1996 Summer, 2000 Summer | |
| Ion Ionescu | Football | 1964 Summer | |
| Mariana Ionescu | Volleyball | 1980 Summer | |
| Marius Ionescu | Athletics | 2012 Summer, 2016 Summer | |
| Nastasia Ionescu | Canoe sprint | 1976 Summer, 1984 Summer | |
| Ovidiu Ionescu | Table tennis | 2016 Summer, 2020 Summer, 2024 Summer | |
| Sabrina Ionescu | United States | Basketball | 2024 Summer | |
| Ștefan Ionescu | Romania | Ice hockey | 1964 Winter, 1968 Winter | |
| Vali Ionescu | Athletics | 1984 Summer | |
| Vasile Ionescu | Alpine skiing | 1948 Winter | |
| Mihai Ionescu-Călinești | Shooting | 1936 Summer | |
| Bondoc Ionescu-Crum | Athletics | 1936 Summer | |
| Toni Ioneticu | Canoe sprint | 2012 Summer | |
| Carel de Iongh | Netherlands | Shooting | 1924 Summer | |
| Hendrik de Iongh | Fencing | 1912 Summer | |
| Viorica Ionică | Romania | Handball | 1976 Summer | |
| Anamaria Ioniță | Athletics | 2016 Summer | |
| Ion Ioniță | Track cycling | 1952 Summer, 1960 Summer | |
| Ion Ioniță | Ice hockey | 1976 Winter | |
| Raluca Ioniță | Canoe sprint | 1996 Summer, 2000 Summer | |
| Anatoli Ionov | Soviet Union | Ice hockey | 1968 Winter | |
| Vyacheslav Ionov | Canoe sprint | 1964 Summer | |
| Adalbert Iordache | Romania | Water polo | 1952 Summer | |
| Eugen Iordache | Football | 1952 Summer | |
| Larisa Iordache | Artistic gymnastics | 2012 Summer, 2020 Summer | |
| Viorica Iordache | Canoe sprint | 1992 Summer, 1996 Summer | |
| Sofia Iordanidou | Greece | Volleyball | 2004 Summer | |
| Dominic Iorfa | Nigeria | Football | 1988 Summer | |
| Vasile Iorga | Romania | Wrestling | 1972 Summer, 1976 Summer | |
| Diana Iorgova | Bulgaria | Shooting | 1992 Summer, 1996 Summer, 2000 Summer | |
| Nicolae Iorgu | Romania | Fencing | 1972 Summer, 1976 Summer | |
| Cristina Ioriatti | Italy | Archery | 2000 Summer | |
| Ermanno Ioriatti | Speed skating | 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter | |
| Elisa Iorio | Artistic gymnastics | 2024 Summer | |
| Maurizio Iorio | Football | 1984 Summer | |
| David Iornos | Nicaragua | Road cycling | 1976 Summer | |
| Martin Iosefo | United States | Rugby sevens | 2016 Summer, 2020 Summer | |
| Andrei Iosep | Romania | Water polo | 2012 Summer | |
| Kyriakos Iosifidis | Greece | 1968 Summer, 1972 Summer | |
| Sofia Iosifidou | 2008 Summer | |
| Octavian Iosim | Romania | 1952 Summer | |
| Petru Iosub | Rowing | 1980 Summer, 1984 Summer | |
| Sonia Iovan | Artistic gymnastics | 1956 Summer, 1960 Summer, 1964 Summer | |
| Emilio Iovio | Italy | Ice hockey | 1992 Winter, 1994 Winter | |
| Cristina Iovu | Moldova | Weightlifting | 2012 Summer | |
| Ip Pui Yi | Hong Kong | Shooting | 2012 Summer | |
| György Ipacs | Hungary | Swimming | 1952 Summer | |
| László Ipacs | Judo | 1972 Summer, 1976 Summer | |
| Dimitry Ipatov | Russia | Ski jumping | 2006 Winter, 2010 Winter | |
| Fatih Arda İpcioğlu | Turkey | 2018 Winter, 2022 Winter | |
| Assiya İpek | Weightlifting | 2016 Summer | |
| Bep Ipenburg | Netherlands | Artistic gymnastics | 1960 Summer | |
| Lynch Ipera | Papua New Guinea | Boxing | 1996 Summer | |
| Max Ippen | Czechoslovakia | Bobsleigh | 1948 Winter | |
| Anton Ipsen | Denmark | Swimming | 2016 Summer, 2020 Summer | |
| Kristian Ipsen | United States | Diving | 2012 Summer, 2016 Summer | |
| Manzar Iqbal | Field hockey | 1984 Summer | |
| Muhammad Iqbal | Pakistan | Athletics | 1952 Summer, 1956 Summer, 1960 Summer | |
| Muhammad Iqbal | Shooting | 1960 Summer | |
| Nadeem Iqbal | India | Cross country skiing | 2014 Winter | |
| Zafar Iqbal | Field hockey | 1980 Summer, 1984 Summer | |
| West Iqiebor | Nigeria | Judo | 1988 Summer | |
| Lawrence Iquaibom | Weightlifting | 1984 Summer, 1988 Summer | |
| Olivier Irabaruta | Burundi | Athletics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Borja Iradier | Spain | Swimming | 2008 Summer | |
| Jesús Iradier | Basketball | 1972 Summer | |
| Billy-Scott Irakose | Burundi | Swimming | 2016 Summer | |
| Safar Iranpak | Iran | Football | 1972 Summer | |
| Soumiya Iraoui | Morocco | Judo | 2020 Summer, 2024 Summer | |
| Anita Irarrázabal | Chile | Alpine skiing | 2002 Winter | |
| Daniela Iraschko-Stolz | Austria | Ski jumping | 2014 Winter, 2018 Winter, 2022 Winter | |
| Eko Yuli Irawan | Indonesia | Weightlifting | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Fernando Irayzoz | Spain | Modern pentathlon | 1960 Summer | |
| Artūrs Irbe | Latvia | Ice hockey | 2002 Winter, 2006 Winter | |
| Lynna Irby | United States | Athletics | 2020 Summer | |
| Fiona Iredale | New Zealand | Judo | 2000 Summer | |
| Richard Iredale | Great Britain | Swimming | 1976 Summer | |
| Atsushi Irei | Japan | Weightlifting | 1992 Summer | |
| Alexander Ireland | Great Britain | Boxing | 1920 Summer | |
| Anne Ireland | Canada | Volleyball | 1976 Summer | |
| Kym Ireland | Australia | Field hockey | 1984 Summer | |
| Mike Ireland | Canada | Speed skating | 1994 Winter, 2002 Winter, 2006 Winter, 2010 Winter | |
| Sean Ireland | 1992 Winter, 1994 Winter | |
| Walter Ireland | Ireland | Tennis | 1924 Summer | |
| James Iremonger | Great Britain | Bobsleigh | 1948 Winter | |
| Albert Ireton | Boxing, Tug of war | 1908 Summer | |
| K. T. Irfan | India | Athletics | 2012 Summer, 2020 Summer | |
| Kadir Irfan | Iraq | Basketball | 1948 Summer | |
| Muhammad Irfan | Pakistan | Field hockey | 2012 Summer | |
| Rifda Irfanaluthfi | Indonesia | Artistic gymnastics | 2024 Summer | |
| Akmal Irgashev | Uzbekistan | Taekwondo | 2008 Summer, 2012 Summer | |
| Emil Irgens | Norway | Rowing | 1908 Summer | |
| Brígido Iriarte | Venezuela | Athletics | 1952 Summer | |
| Jan Iriarte | Guam | Sailing | 1988 Summer, 1992 Summer, 1996 Summer | |
| Yoandry Iriarte | Cuba | Fencing | 2016 Summer | |
| Atsuo Irie | Japan | Ice hockey | 1960 Winter, 1964 Winter | |
| Gouna Irie | Ivory Coast | Handball | 1988 Summer | |
| Ryosuke Irie | Japan | Swimming | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Sena Irie | Boxing | 2020 Summer | |
| Takashi Irie | Wrestling | 1984 Summer | |
| Toshio Irie | Swimming | 1928 Summer, 1932 Summer | |
| Carlos Irigoyen | Argentina | Sailing | 1984 Summer, 1988 Summer | |
| Elsa Irigoyen | Fencing | 1948 Summer, 1952 Summer | |
| Dan Irimiciuc | Romania | 1972 Summer, 1976 Summer | |
| Lois Eliora Irishura [ Wikidata ] | Burundi | Swimming | 2024 Summer | |
| Seppo Irjala | Finland | Shooting | 1972 Summer | |
| Markus Irle | Austria | Rowing | 1992 Summer | |
| Karl-Heinz Irmer | Germany | Field hockey | 1928 Summer | |
| Harald Irmscher | East Germany | Football | 1972 Summer | |
| Kamola Irnazarova | Uzbekistan | Rhythmic gymnastics | 2020 Summer | |
| Marianne Irniger | Switzerland | Cross country skiing | 1988 Winter | |
| Edgar Iro | Solomon Islands | Swimming | 2020 Summer | |
| Frank Irons | United States | Athletics | 1908 Summer, 1912 Summer | |
| Abigail Irozuru | Great Britain | 2020 Summer | |
| Brian Irr | United States | Karate | 2020 Summer | |
| Sergio Irredento | Italy | Swimming | 1972 Summer | |
| Alfonso de Iruarrizaga | Chile | Shooting | 1984 Summer, 1988 Summer, 1992 Summer | |
| Geovana Irusta | Bolivia | Athletics | 1996 Summer, 2000 Summer, 2004 Summer | |
| Brendan Irvine | Ireland | Boxing | 2016 Summer, 2020 Summer | |
| Don Irvine | Great Britain | Wrestling | 1948 Summer, 1952 Summer | |
| Don Irvine | Canada | Canoe sprint | 1984 Summer | |
| Francis Irvine | South Africa | Athletics | 1920 Summer | |
| Grant Irvine | Australia | Swimming | 2016 Summer | |
| Jim Irvine | Field hockey | 1976 Summer, 1984 Summer | |
| Kaylin Irvine | Canada | Speed skating | 2014 Winter, 2018 Winter | |
| Ken Irvine | Great Britain | Wrestling | 1948 Summer, 1952 Summer | |
| Martyn Irvine | Ireland | Track cycling | 2012 Summer | |
| Anne-Marie Irving | New Zealand | Field hockey | 2000 Summer | |
| Birk Irving | United States | Freestyle skiing | 2022 Winter | |
| Kyrie Irving | Basketball | 2016 Summer | |
| Lewis Irving | Canada | Freestyle skiing | 2018 Winter, 2022 Winter | |
| Max Irving | United States | Water polo | 2020 Summer, 2024 Summer | |
| Stuart Irving | Ice hockey | 1972 Winter | |
| Albert Irwin | Canada | Alpine skiing | 1948 Winter | |
| Bill Irwin | Alpine skiing, Cross country skiing, Nordic combined, Ski jumping | 1948 Winter | |
| Billy Irwin | Boxing | 1992 Summer | |
| Calynn Irwin | Snowboarding | 2018 Winter | |
| Cathy Lee Irwin | Figure skating | 1972 Winter | |
| Dave Irwin | Alpine skiing | 1976 Winter, 1980 Winter | |
| Deedra Irwin | United States | Biathlon | 2022 Winter | |
| Haley Irwin | Canada | Ice hockey | 2010 Winter, 2014 Winter, 2018 Winter | |
| Herbert Carmichael Irwin | Great Britain | Athletics | 1920 Summer | |
| Lauren Irwin | Rowing | 2024 Summer | |
| Tim Irwin | Canada | Sailing | 1968 Summer | |
| Muhammad Isa Ahmad | Brunei | Swimming | 2020 Summer | |
| Hidenori Isa | Japan | Biathlon | 2002 Winter, 2006 Winter, 2010 Winter, 2014 Winter | |
| Alberto Isaac | Mexico | Swimming | 1948 Summer, 1952 Summer | |
| Carlos Isaack | Argentina | Athletics | 1948 Summer | |
| Chloé Isaac | Canada | Artistic swimming | 2012 Summer | |
| Leo Isaac | Great Britain | Weightlifting | 1980 Summer | |
| Mateus Isaac | Brazil | Sailing | 2024 Summer | |
| Rey Isaac | Cuba | Baseball | 1996 Summer | |
| Gardeo Isaacs | South Africa | Athletics | 2024 Summer | |
| Harry Isaacs | Boxing | 1928 Summer | |
| Paris-Gail Isaacs | Field hockey | 2024 Summer | |
| William Isaacs | Great Britain | Track cycling | 1908 Summer | |
| Jeff Isaacson | United States | Curling | 2010 Winter, 2014 Winter | |
| Fotios Isaakidis | Greece | Shooting | 1964 Summer | |
| Jennifer Isacco | Italy | Bobsleigh | 2006 Winter | |
| Boris Isachenko | Soviet Union | Archery | 1980 Summer | |
| Natalya Issachenko | Kazakhstan | Cross country skiing | 2002 Winter, 2006 Winter | |
| Ali Isaev | Azerbaijan | Wrestling | 2008 Summer | |
| Hasan Isaev | Bulgaria | 1976 Summer | |
| Mansur Isaev | Russia | Judo | 2012 Summer | |
| Youssef Omar Isahak | Djibouti | 1992 Summer | |
| Vladimir Isaichev | Russia | Road cycling | 2012 Summer | |
| Abdi Isak | Somalia | Athletics | 1996 Summer | |
| Ilualoma Isako | Democratic Republic of the Congo | Judo | 1992 Summer | |
| Elbrus Isakov | Azerbaijan | Alpine skiing | 2002 Winter | |
| Erkinjon Isakov | Uzbekistan | Athletics | 2000 Summer, 2004 Summer | |
| Oleksandr Isakov | Ukraine | Swimming | 2008 Summer, 2012 Summer | |
| Vladimir Isakov | Russia | Shooting | 1996 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Yury Isakov | Soviet Union | Athletics | 1976 Summer | |
| Inna Isakova | Uzbekistan | Canoe sprint | 1996 Summer | |
| Natalya Isakova | Unified Team | Short track speed skating | 1992 Winter | |
| Svetlana Isakova | Soviet Union | Alpine skiing | 1972 Winter | |
| Svetlana Isakova | Swimming | 1988 Summer | |
| Mile Isaković | Yugoslavia | Handball | 1980 Summer, 1984 Summer | |
| Sara Isaković | Slovenia | Swimming | 2004 Summer, 2008 Summer, 2012 Summer | |
| Isabella Isaksen | United States | Modern pentathlon | 2016 Summer | |
| Magnar Isaksen | Norway | Football | 1936 Summer | |
| Margaux Isaksen | United States | Modern pentathlon | 2008 Summer, 2012 Summer, 2016 Summer | |
| Jane Isakson | Canada | Biathlon | 1992 Winter, 1994 Winter | |
| Kjell Isaksson | Sweden | Athletics | 1968 Summer, 1972 Summer, 1976 Summer | |
| Patrik Isaksson | Swimming | 2000 Summer | |
| Preben Isaksson | Denmark | Track cycling | 1964 Summer | |
| Luis Isamat | Spain | Field hockey | 1928 Summer | |
| Makoye Isangula | Tanzania | Boxing | 1992 Summer | |
| William Isangura | 1980 Summer, 1984 Summer | |
| Ryoji Isaoka | Japan | Weightlifting | 1984 Summer, 1988 Summer, 1992 Summer | |
| Bodin Isara | Thailand | Badminton | 2012 Summer, 2016 Summer | |
| Andreea Isărescu | Romania | Artistic gymnastics | 2000 Summer | |
| Xavier Isasa | Spain | Track cycling | 1988 Summer | |
| Ana Laura Portuondo Isasi | Canada | Judo | 2024 Summer | |
| Joel Isasi | Cuba | Athletics | 1992 Summer, 1996 Summer | |
| Róbert Isaszegi | Hungary | Boxing | 1988 Summer | |
| Anatoli Isayev | Soviet Union | Football | 1956 Summer | |
| Ivan Isayev | Shooting | 1952 Summer | |
| Radik Isayev | Azerbaijan | Taekwondo | 2016 Summer | |
| Aida İsayeva | Athletics | 2000 Summer | |
| José Isaza | Panama | Swimming | 1996 Summer | |
| Verónica Isbej | Chile | Biathlon | 2006 Winter | |
| Kerstin Isberg | Sweden | Swimming | 1936 Summer | |
| Paul Isberg | Sailing | 1912 Summer | |
| Sixten Isberg | Alpine skiing | 1948 Winter, 1952 Winter | |
| Torunn Isberg | Norway | Artistic gymnastics | 1968 Summer | |
| Isco | Spain | Football | 2012 Summer | |
| Masayoshi Ise | Japan | Art competitions | 1936 Summer | |
| Takemi Ise | Swimming | 1984 Summer | |
| Megumi Iseda | Sailing | 2016 Summer | |
| Vladimir Iselidze | Soviet Union | Water polo | 1976 Summer | |
| Marc Iselin | Switzerland | Snowboarding | 2010 Winter | |
| Ola Stunes Isene | Norway | Athletics | 2020 Summer | |
| Chairon Isenia | Netherlands | Baseball | 2000 Summer, 2004 Summer | |
| Percy Isenia | 2000 Summer, 2008 Summer | |
| Kurt Harald Isenstein | Germany | Art competitions | 1928 Summer | |
| Gino Iseppi | Italy | Rowing | 1976 Summer, 1984 Summer | |
| Valentina Iseppi | 2020 Summer | |
| Rodrigo Isgró | Argentina | Rugby sevens | 2020 Summer, 2024 Summer | |
| Hussein Ishaish | Jordan | Boxing | 2016 Summer, 2020 Summer, 2024 Summer | |
| Zeyad Ishaish | 2020 Summer, 2024 Summer | |
| Mikael Ishak | Sweden | Football | 2016 Summer | |
| Ivan Ishchenko | Ukraine | Wrestling | 2008 Summer | |
| Mykhaylo Ishchenko | Soviet Union | Handball | 1972 Summer, 1976 Summer, 1980 Summer | |
| Natalia Ishchenko | Russia | Artistic swimming | 2008 Summer, 2012 Summer, 2016 Summer | |
| Pavlo Ishchenko | Ukraine | Boxing | 2012 Summer | |
| Akira Ishibashi | Japan | Sailing | 2008 Summer | |
| Chiaki Ishibashi | Swimming | 2012 Summer | |
| Paula Ishibashi | Brazil | Rugby sevens | 2016 Summer | |
| Hidekatsu Ishida | Japan | Diving | 1932 Summer | |
| Kazuharu Ishida | Wrestling | 1972 Summer | |
| Kippei Ishida | Rugby sevens | 2020 Summer, 2024 Summer | |
| Kiyomi Ishida | Table tennis | 1988 Summer | |
| Kyoko Ishida | Volleyball | 1984 Summer | |
| Masako Ishida | Cross country skiing | 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Rika Ishida | Field hockey | 2004 Summer | |
| Shigeko Ishida [ Wikidata ] | Art competitions | 1936 Summer | |
| Taiga Ishida | Rugby sevens | 2024 Summer | |
| Tsunenobu Ishida | Swimming | 1924 Summer | |
| Yoshihisa Ishida | Athletics | 1968 Summer, 1972 Summer | |
| Hitoshi Ishigaki | Boxing | 1976 Summer | |
| Toshiyasu Ishige | Shooting | 1964 Summer, 1976 Summer | |
| Hayato Ishiguro | Wrestling | 2024 Summer | |
| Kaoru Ishiguro | 1960 Summer | |
| Kenkichi Ishiguro | Equestrian eventing | 1976 Summer | |
| Noboru Ishiguro | Athletics | 1964 Summer | |
| Shuichi Ishiguro | Wrestling | 1968 Summer | |
| Yumiko Ishiguro | Artistic swimming | 2008 Summer | |
| Katsuki Ishihara | Swimming | 1960 Summer, 1964 Summer | |
| Kenji Ishihara | Art competitions | 1932 Summer | |
| Naoko Ishihara | Shooting | 2016 Summer, 2020 Summer | |
| Shozo Ishihara | Speed skating | 1932 Winter, 1936 Winter | |
| Tatsuyoshi Ishihara | Short track speed skating | 1992 Winter, 1994 Winter | |
| Sunao Ishiharada | Swimming | 1932 Summer, 1936 Summer | |
| Tadao Ishihata | Speed skating | 1968 Winter | |
| Chiaki Ishii | Brazil | Judo | 1972 Summer | |
| Hiroshi Ishii | Japan | Swimming | 1960 Summer | |
| Hirotoshi Ishii | Baseball | 2004 Summer | |
| Kikuyo Ishii | Swimming | 1972 Summer | |
| Kinichiro Ishii | Rowing | 1928 Summer | |
| Masayuki Ishii | Sailing | 1960 Summer, 1964 Summer | |
| Miki Ishii | Beach volleyball | 2020 Summer, 2024 Summer | |
| Satoshi Ishii | Judo | 2008 Summer | |
| Shohachi Ishii | Wrestling | 1952 Summer | |
| Takao Ishii | Shooting | 1960 Summer, 1964 Summer | |
| Tânia Ishii | Brazil | Judo | 1992 Summer | |
| Tetsunosuke Ishii | Japan | Water polo | 1968 Summer | |
| Tomoya Ishii | Alpine skiing | 2018 Winter | |
| Tsuruzo Ishii | Art competitions | 1936 Summer | |
| Vânia Ishii | Brazil | Judo | 2000 Summer, 2004 Summer | |
| Yuki Ishii | Japan | Volleyball | 2016 Summer, 2020 Summer | |
| Yusuke Ishijima | Volleyball, Beach volleyball | 2008 Summer, 2020 Summer | |
| Michiyo Ishikake | Volleyball | 1992 Summer | |
| Emerick Ishikawa | United States | Weightlifting | 1948 Summer | |
| Hajime Ishikawa | Japan | Rowing | 1964 Summer | |
| Haruna Ishikawa | Alpine skiing | 2018 Winter | |
| Junichiro Ishikawa | Art competitions | 1936 Summer | |
| Kasumi Ishikawa | Table tennis | 2012 Summer, 2016 Summer, 2020 Summer | |
| Kenji Ishikawa | Swimming | 1964 Summer | |
| Masanori Ishikawa | Baseball | 2000 Summer | |
| Mayu Ishikawa | Volleyball | 2020 Summer, 2024 Summer | |
| Naohiro Ishikawa | Football | 2004 Summer | |
| Rion Ishikawa | 2024 Summer | |
| Suehiro Ishikawa | Athletics | 2016 Summer | |
| Taeko Ishikawa | Softball | 2000 Summer | |
| Yūki Ishikawa | Volleyball | 2020 Summer, 2024 Summer | |
| Yukio Ishikawa | Athletics | 1956 Summer | |
| Yukiyasu Ishikawa | Rowing | 1988 Summer | |
| Shunta Ishikura | Wrestling | 1960 Summer | |
| Hajime Ishimaru | Art competitions | 1936 Summer | |
| Toshihito Ishimaru | Boxing | 1952 Summer, 1956 Summer | |
| Haley Ishimatsu | United States | Diving | 2008 Summer | |
| Koichi Ishimori | Japan | Wrestling | 1984 Summer | |
| Takashi Ishimoto | Swimming | 1956 Summer | |
| Korinna Ishimtseva | Kazakhstan | Volleyball | 2008 Summer | |
| Eriko Ishino | Japan | Speed skating | 2006 Winter | |
| Chiaki Ishioka | Alpine skiing | 1988 Winter | |
| Takuya Ishioka | 1992 Winter, 1994 Winter, 1998 Winter | |
| Mayuko Ishitate | Handball | 2020 Summer | |
| Vitor Ishiy | Brazil | Table tennis | 2020 Summer, 2024 Summer | |
| Manami Ishizaka | Japan | Artistic gymnastics | 2004 Summer | |
| Yukiko Ishizaka | Beach volleyball | 1996 Summer, 2000 Summer | |
| Kotomi Ishizaki | Curling | 2010 Winter | |
| Shiho Ishizawa | Speed skating | 2010 Winter, 2014 Winter | |
| Hiroko Ishizu | Archery | 1984 Summer | |
| Mitsue Ishizu | Athletics | 1932 Summer | |
| Yu Ishizu | Archery | 2012 Summer | |
| Svetlana Ishkova | Argentina | Diving | 2000 Summer | |
| Svetlana Ishmouratova | Russia | Biathlon | 2002 Winter, 2006 Winter | |
| Tawa Ishola | Nigeria | Football | 2008 Summer | |
| Igor Ishutko | Ukraine | Freestyle skiing | 2006 Winter | |
| Patrick Ishyaka | Rwanda | Athletics | 1996 Summer | |
| Alain Maxime Isiah | Saint Kitts and Nevis | 1996 Summer | |
| Fernando San Isidro | Spain | Wrestling | 1980 Summer | |
| Pedro Isidro | Portugal | Athletics | 2012 Summer, 2016 Summer | |
| Blanka Isielonis | Poland | Snowboarding | 2006 Winter | |
| Okey Isima | Nigeria | Football | 1980 Summer | |
| Yelena Isinbayeva | Russia | Athletics | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Félix Isisola | Peru | Wrestling | 1996 Summer | |
| Gulzira Iskakova | Kazakhstan | Handball | 2008 Summer | |
| Rufina Iskakova [ Wikidata ] | Canoe sprint | 2024 Summer | |
| Rustam Iskandari | Tajikistan | Wrestling | 2012 Summer | |
| Saida Iskandarova | Uzbekistan | Swimming | 2000 Summer, 2004 Summer | |
| Mnatsakan Iskandaryan | Unified Team, Russia | Wrestling | 1992 Summer, 1996 Summer | |
| Mumtozabonu Iskhokzoda | Uzbekistan | Rhythmic gymnastics | 2024 Summer | |
| Justyna Iskrzycka | Poland | Canoe sprint | 2020 Summer | |
| Andrzej Iskrzycki | Ice hockey | 1976 Winter | |
| Mandy Islacker | Germany | Football | 2016 Summer | |
| Akhtarul Islam | Pakistan | Field hockey | 1972 Summer | |
| Hazrat Islam | Rowing | 2000 Summer | |
| Islam Islam | Tanzania | Field hockey | 1980 Summer | |
| Kanat Islam | China | Boxing | 2004 Summer, 2008 Summer | |
| Karar Samedul Islam | Bangladesh | Swimming | 2000 Summer | |
| Mitchell Islam | Canada | Figure skating | 2014 Winter | |
| Mohammed Ariful Islam | Bangladesh | Swimming | 2020 Summer | |
| Muhammad Robiul Islam [ Wikidata ] | Shooting | 2024 Summer | |
| Sagor Islam | Archery | 2024 Summer | |
| Drita Islami | North Macedonia | Athletics | 2016 Summer | |
| Rafayel Islamov | Uzbekistan | Canoe sprint | 1996 Summer | |
| Ramil Islamov | Wrestling | 1996 Summer, 2000 Summer | |
| Valentina Islamova | Kazakhstan | 2020 Summer | |
| Daniel Islas Arroyo | Mexico | Diving | 2012 Summer | |
| Therese Islas Helgesson | Sweden | Handball | 2008 Summer, 2012 Summer | |
| Idulio Islas | Mexico | Taekwondo | 2008 Summer | |
| Luis Islas | Argentina | Football | 1988 Summer | |
| Sabino Islas | Mexico | Boxing | 1936 Summer | |
| Dimitri Isler | Switzerland | Freestyle skiing | 2018 Winter | |
| Heinz Isler | Track cycling | 1980 Summer, 1984 Summer | |
| J. J. Isler | United States | Sailing | 1992 Summer, 2000 Summer | |
| Ueli Isler | Switzerland | Rowing | 1972 Summer | |
| Carlin Isles | United States | Rugby sevens | 2016 Summer, 2020 Summer | |
| Troy Isley | Boxing | 2020 Summer | |
| Mehmet Ali Islioğlu | Turkey | Wrestling | 1952 Summer | |
| Abdel Rahman Hafez Ismail | Egypt | Basketball | 1948 Summer, 1952 Summer | |
| Abdul Ismail | Mozambique | Athletics | 1980 Summer | |
| Adel Ibrahim Ismail | Egypt | Basketball | 1972 Summer | |
| Afa Ismail | Maldives | Athletics | 2012 Summer, 2016 Summer | |
| Ahmed Mohamed Ismail | Somalia | 1984 Summer, 1988 Summer | |
| Dhurgham Ismail | Iraq | Football | 2016 Summer | |
| El-Desoky Ismail | Egypt | Wrestling | 2012 Summer | |
| Ismail Ahmed Ismail | Sudan | Athletics | 2004 Summer, 2008 Summer, 2012 Summer | |
| Malak Ismail | Egypt | Modern pentathlon | 2024 Summer | |
| Mohamed Ismail | Basketball | 1988 Summer | |
| Naseer Ismail | Maldives | Athletics | 1996 Summer, 2000 Summer | |
| Salama Ismail | Egypt | Swimming | 2004 Summer | |
| Taha Ismail | Football | 1964 Summer | |
| Halimat Ismaila | Nigeria | Athletics | 2004 Summer, 2008 Summer | |
| Simion Ismailciuc | Romania | Canoe sprint | 1956 Summer | |
| Meliha İsmailoğlu | Turkey | Volleyball | 2020 Summer, 2024 Summer | |
| Amantur Ismailov | Kyrgyzstan | Wrestling | 2024 Summer | |
| Mamadzhan Ismailov | Soviet Union | Equestrian eventing | 1972 Summer | |
| Ruslan Ismailov | Kyrgyzstan | Swimming | 2004 Summer | |
| Ruslan Ismailov | Shooting | 2008 Summer, 2012 Summer | |
| Rıza Maksut İşman | Turkey | Athletics | 1948 Summer | |
| Ali Ismayilov | Azerbaijan | Boxing | 2000 Summer, 2004 Summer | |
| Daniyar İsmayilov | Turkmenistan, Turkey | Weightlifting | 2012 Summer, 2016 Summer | |
| Elchin Ismayilov | Azerbaijan | Judo | 2000 Summer, 2004 Summer | |
| Olga Ismayilova | Belarus, Azerbaijan | Track cycling | 2012 Summer, 2016 Summer | |
| Rudolf Ismayr | Germany | Weightlifting | 1932 Summer, 1936 Summer | |
| Camillo Isnardi | Italy | Shooting | 1920 Summer, 1924 Summer | |
| John Isner | United States | Tennis | 2012 Summer | |
| Tomiaki Iso | Japan | Rowing | 1976 Summer | |
| Olli Isoaho | Finland | Football | 1980 Summer | |
| Sata Isobe | Japan | Volleyball | 1964 Summer | |
| Junko Isoda | Swimming | 2000 Summer | |
| Yoko Isoda | Artistic swimming | 2000 Summer | |
| Yorihide Isogai | Wrestling | 1968 Summer, 1972 Summer, 1976 Summer | |
| Volmari Iso-Hollo | Finland | Athletics | 1932 Summer, 1936 Summer | |
| Takao Isokawa | Japan | Wrestling | 2012 Summer | |
| Amédée Isola | France | Athletics | 1924 Summer | |
| Andrés Isola | Uruguay | Sailing | 1996 Summer | |
| Federica Isola | Italy | Fencing | 2020 Summer | |
| Francisco Isoldi | Brazil | Sailing | 1952 Summer | |
| Jari Isometsä | Finland | Cross country skiing | 1992 Winter, 1994 Winter, 1998 Winter | |
| Pentti Isotalo | Ice hockey | 1952 Winter | |
| Livio Isotti | Italy | Road cycling | 1948 Summer | |
| Andreas Isoz | Switzerland | Freestyle skiing | 2010 Winter | |
| Horia Ispaș | Romania | Sailing | 1996 Summer | |
| Jan van Ispelen | Netherlands | Boxing | 1968 Summer | |
| Julie Isphording | United States | Athletics | 1984 Summer | |
| Märt Israel | Estonia | 2008 Summer, 2012 Summer | |
| Or Israelov | Israel | Football | 2024 Summer | |
| Isaac Israëls | Netherlands | Art competitions | 1924 Summer, 1928 Summer, 1932 Summer | |
| Sven Israelsson | Sweden | Cross country skiing, Nordic combined | 1948 Winter | |
| Karl-Erik Israelsson | Athletics | 1952 Summer | |
| Leopold Israelsson | Wrestling | 1960 Summer | |
| Sven-Olof Israelsson | Nordic combined | 1972 Winter | |
| Ahmed Issa | Chad | Athletics | 1964 Summer, 1968 Summer | |
| Mohamed Moustafa Issa [ Wikidata ] | Egypt | Volleyball | 2024 Summer | |
| George Issabeg | Iran | Boxing | 1948 Summer, 1952 Summer | |
| Vladimir Issachenko | Kazakhstan | Shooting | 2004 Summer, 2016 Summer | |
| Geraldi Issaick | Tanzania | Boxing | 1980 Summer | |
| Nouridine Issaka | Niger | Taekwondo | 2024 Summer | |
| Mohamed Issangar | Morocco | Athletics | 1992 Summer | |
| Gulzhan Issanova | Kazakhstan | Judo | 2008 Summer, 2012 Summer | |
| Koos Issard | Netherlands | Water polo | 1992 Summer, 1996 Summer | |
| Fernand Isselé | Belgium | 1936 Summer, 1948 Summer | |
| Franz Isser | Austria | Bobsleigh | 1964 Winter | |
| Heinrich Isser | 1956 Winter | |
| Vahdettin İşsever | Turkey | Boxing | 1996 Summer | |
| Abdoul Razak Issoufou | Niger | Taekwondo | 2016 Summer, 2020 Summer, 2024 Summer | |
| Ernest Ista | Belgium | Shooting | 1908 Summer | |
| Gro Marit Istad Kristiansen | Norway | Biathlon | 2002 Winter, 2006 Winter, 2010 Winter | |
| Jon Istad | 1960 Winter, 1964 Winter, 1968 Winter | |
| Sverre Istad | 1988 Winter | |
| Rado Istenič | Yugoslavia | Nordic combined | 1936 Winter | |
| Denis Istomin | Uzbekistan | Tennis | 2012 Summer, 2016 Summer, 2020 Summer | |
| Sergey Istomin | Kazakhstan | Weightlifting | 2008 Summer | |
| Yuriy Istomin | Soviet Union | Football | 1972 Summer | |
| Mariya Istomina [ Wikidata ] | Russian Olympic Committee | Cross country skiing | 2022 Winter | |
| Alexandru Istrate | Romania | Fencing | 1972 Summer | |
| Nicolae Istrate | Bobsleigh | 2006 Winter, 2010 Winter, 2014 Winter | |
| Damian Istria | Australia | Artistic gymnastics | 2000 Summer | |
| Carlos Isturiz | Venezuela | Diving | 1984 Summer | |
| Tōru Itabashi | Japan | Ice hockey | 1968 Winter | |
| Hiroshi Itagaki | Nordic combined, Ski jumping | 1968 Winter, 1972 Winter, 1976 Winter | |
| Minami Itahashi | Diving | 2016 Summer, 2020 Summer | |
| Ko Itakura | Football | 2020 Summer | |
| Miki Itakura | Athletics | 1992 Summer | |
| Mikio Itakura | Shooting | 1984 Summer | |
| Piero Italiani | Italy | Diving | 1984 Summer, 1988 Summer | |
| Minami Itano | Japan | Handball | 2020 Summer | |
| Patience Itanyi | Nigeria | Athletics | 2000 Summer | |
| Vicente Ithier | Puerto Rico | Basketball | 1988 Summer | |
| Nick Itkin | United States | Fencing | 2020 Summer, 2024 Summer | |
| Maria Itkina | Soviet Union | Athletics | 1956 Summer, 1960 Summer, 1964 Summer | |
| Moisei Itkis | Shooting | 1960 Summer | |
| Jaime Itlman | Chile | Athletics | 1948 Summer | |
| Atsushi Ito | Japan | Wrestling | 1988 Summer, 1992 Summer | |
| Ayuko Ito | Short track speed skating | 2010 Winter, 2014 Winter, 2018 Winter | |
| Chieko Ito | Speed skating | 1976 Winter | |
| Daiki Ito | Ski jumping | 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter | |
| Fujio Ito | Track cycling | 1964 Summer | |
| Fumiko Ito | Athletics | 1960 Summer | |
| Hanae Ito | Swimming | 2008 Summer, 2012 Summer | |
| Hidetada Ito | Handball | 1984 Summer, 1988 Summer | |
| Hiroki Ito | Diving | 2020 Summer | |
| Hiromichi Ito | Wrestling | 1988 Summer | |
| Katsuji Ito | Swimming | 1968 Summer | |
| Kazue Ito | Softball | 2000 Summer, 2004 Summer | |
| Keisuke Ito | Swimming | 1964 Summer | |
| Kiyomi Ito | Speed skating | 1972 Winter | |
| Koji Ito | Athletics | 1996 Summer, 2000 Summer | |
| Mai Ito | 2016 Summer | |
| Masaki Ito | Trampolining | 2012 Summer, 2016 Summer | |
| Megumi Itō | Artistic swimming | 1988 Summer | |
| Michihiro Ito | Field hockey | 1936 Summer | |
| Midori Ito | Figure skating | 1988 Winter, 1992 Winter | |
| Miki Itō | Freestyle skiing | 2006 Winter, 2010 Winter | |
| Mima Ito | Table tennis | 2016 Summer, 2020 Summer | |
| Minoru Ito | Ice hockey | 1968 Winter, 1972 Winter, 1976 Winter | |
| Minoru Ito | Shooting | 1972 Summer | |
| Noboru Ito | Art competitions | 1936 Summer | |
| Norio Ito | Ice hockey | 1980 Winter | |
| Rikuya Itō | Athletics | 2020 Summer | |
| Saburo Ito | Swimming | 1936 Summer | |
| Sachiko Ito | Softball | 2008 Summer | |
| Shigenobu Ito | Art competitions | 1936 Summer | |
| Shinji Ito | Swimming | 1984 Summer | |
| Shunsuke Ito | 1996 Summer | |
| Soichiro Ito | Shooting | 1992 Summer, 1996 Summer | |
| Suzuko Ito [ Wikidata ] | Art competitions | 1936 Summer | |
| Takao Ito | Ski jumping | 1976 Winter | |
| Takeo Ito | Field hockey | 1936 Summer | |
| Tatsuhiko Ito | Athletics | 2020 Summer | |
| Tatsuma Ito | Tennis | 2012 Summer | |
| Teruyoshi Itō | Football | 1996 Summer | |
| Tomohiro Ito | Athletics | 2004 Summer | |
| Tomohito Ito | Baseball | 1992 Summer | |
| Toru Ito | Luge | 1988 Winter | |
| Tsugio Ito | Rowing | 1964 Summer, 1968 Summer, 1972 Summer | |
| Yasuyuki Ito | Boxing | 1960 Summer | |
| Yoshiko Ito | Shooting | 1988 Summer | |
| Yuki Ito | Ski jumping | 2014 Winter, 2018 Winter, 2022 Winter | |
| Hiromi Itoh | Baseball | 2020 Summer | |
| Hajime Itoi | Swimming | 1992 Summer, 1996 Summer | |
| Teruo Itokawa | Athletics | 1964 Summer | |
| Toshihiko Itokawa | Speed skating | 1992 Winter, 1994 Winter, 2002 Winter | |
| Yoichi Itokazu | Weightlifting | 2016 Summer, 2020 Summer | |
| Juliet Itoya | Spain | Athletics | 2016 Summer | |
| Mayo Itoyama | Japan | Artistic swimming | 2012 Summer | |
| Takashi Itoyama | Basketball | 1956 Summer, 1960 Summer | |
| Usheoritse Itsekiri | Nigeria | Athletics | 2020 Summer, 2024 Summer | |
| Hironori Itsuki | Japan | Rowing | 1960 Summer | |
| Edgar Itt | West Germany | Athletics | 1988 Summer | |
| Grete Ittlinger | Austria | Swimming | 1936 Summer | |
| Eva-Maria Ittner | Germany | Fencing | 1996 Summer | |
| Andoni Ituarte | Venezuela | Track cycling | 1952 Summer | |
| Alejandro Iturbe | Spain | Football | 2024 Summer | |
| Iker Iturbe | Basketball | 2004 Summer | |
| Lucílo Iturbe | Mexico | Athletics | 1928 Summer, 1932 Summer | |
| Justo Iturralde | Argentina | Equestrian dressage | 1948 Summer | |
| Renato Iturrate | Chile | Road cycling | 1948 Summer | |
| Carlos Iturri | Peru | Fencing | 1948 Summer | |
| Eneritz Iturriaga | Spain | Road cycling | 2004 Summer | |
| Sergio Iturriaga | Chile | Equestrian eventing | 2008 Summer | |
| Lázaro Iturrieta | Argentina | Rowing | 1928 Summer | |
| Victor Iturriza | Portugal | Handball | 2020 Summer | |
| Ana Carolina Itzaina [ Wikidata ] | Uruguay | Diving | 1996 Summer | |
| Gilbert Itzicsohn | France | Ice hockey | 1968 Winter | |
| Francesco Iudean [ Wikidata ] | Romania | Water polo | 2024 Summer | |
| Amalie Iuel | Norway | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Dan Iuga | Romania | Shooting | 1972 Summer, 1976 Summer, 1980 Summer | |
| André Iuncker | France | Boxing | 1960 Summer | |
| Chris Ius | Canada | 1972 Summer, 1976 Summer | |
| Florentina Iusco | Romania | Athletics | 2020 Summer | |
| Daria Iushko | Ukraine | Artistic swimming | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Faafetai Iutana | Samoa | Wrestling | 2000 Summer | |
| Uati Iutana | 1988 Summer | |
| Sándor Ivády | Hungary | Water polo | 1928 Summer, 1932 Summer | |
| Georgy Ivakin | Soviet Union | Athletics | 1952 Summer | |
| Yekaterina Ivakina | Russia | 2000 Summer, 2004 Summer | |
| Francesco Ivaldi | Italy | Sailing | 2000 Summer | |
| Matteo Ivaldi | 1996 Summer, 2000 Summer | |
| Michele Ivaldi | 1996 Summer | |
| Raffaello Ivaldi | Canoe slalom | 2024 Summer | |
| Dumitru Ivan | Romania | Football | 1964 Summer | |
| Július Ivan | Czechoslovakia | Athletics | 1980 Summer | |
| Nicolae Ivan | Romania | Swimming | 1996 Summer | |
| Paula Ivan | Athletics | 1988 Summer | |
| Radu Ivan | Judo | 1992 Summer, 1996 Summer, 2000 Summer | |
| Irene Ivancan | Germany | Table tennis | 2012 Summer | |
| Andrea Ivančević | Croatia | Athletics | 2016 Summer | |
| Alena Ivanchenko | Independent Olympians | Road cycling | 2024 Summer | |
| Milush Ivanchev | Bulgaria | Cross country skiing | 1984 Winter | |
| Ivan Ivančić | Yugoslavia | Athletics | 1972 Summer, 1976 Summer | |
| Mirko Ivančić | Rowing | 1984 Summer | |
| Gergő Iváncsik | Hungary | Handball | 2004 Summer, 2012 Summer | |
| Mihály Iváncsik | 1988 Summer, 1992 Summer | |
| Vilmos Iváncsó | Volleyball | 1964 Summer | |
| Marija Ivandekić | Yugoslavia | Artistic gymnastics | 1952 Summer | |
| Vyacheslav Ivanenko | Soviet Union | Athletics | 1988 Summer | |
| Doina Ivănescu | Romania | Volleyball | 1964 Summer | |
| Martine Ivangine | France | Speed skating | 1968 Winter | |
| Aleksandr Ivanik | Russia | Canoe sprint | 1996 Summer, 2000 Summer | |
| Ivo Ivaniš | Croatia | Water polo | 2000 Summer | |
| Goran Ivanišević | Yugoslavia, Croatia | Tennis | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Aleksandr Ivanitsky | Soviet Union | Wrestling | 1964 Summer | |
| György Ivánkai | Hungary | Speed skating | 1964 Winter, 1968 Winter | |
| Ivan Ivankov | Belarus | Artistic gymnastics | 2000 Summer, 2004 Summer | |
| Anastasia Ivankova | Rhythmic gymnastics | 2008 Summer, 2012 Summer | |
| Olha Ivankova | Ukraine | Athletics | 2008 Summer | |
| Antun Ivanković | Yugoslavia | Rowing | 1960 Summer | |
| Luca Ivanković | Croatia | Basketball | 2012 Summer | |
| Aleksandr Ivannikov | Soviet Union | Ski jumping | 1964 Winter | |
| Valery Ivannikov | Russia | Ice hockey | 1994 Winter | |
| Aliaksei Ivanou | Belarus | Cross country skiing | 2010 Winter, 2014 Winter | |
| Albert Ivanov | Soviet Union | Athletics | 1956 Summer | |
| Aleksandr Ivanov | Wrestling | 1976 Summer | |
| Aleksandr Ivanov | Russia | Weightlifting | 2012 Summer | |
| Aleksandr Ivanov | Athletics | 2004 Summer, 2008 Summer | |
| Anatoly Ivanov | Soviet Union | Rowing | 1976 Summer | |
| Andrey Ivanov | Unified Team, Russia | Freestyle skiing | 1992 Winter, 1998 Winter | |
| Andrey Ivanov | Russia | Swimming | 1996 Summer | |
| Antani Ivanov | Bulgaria | 2020 Summer | |
| Anton Ivanov | Athletics | 1996 Summer | |
| Artem Ivanov | Ukraine | Weightlifting | 2008 Summer | |
| Bogdan Ivanov | Bulgaria | Canoe sprint | 1960 Summer, 1964 Summer | |
| Boris Ivanov | Soviet Union | Athletics | 1972 Summer | |
| Bozhidar Ivanov | Bulgaria | Artistic gymnastics | 1968 Summer | |
| Bozhidar Ivanov | Boxing | 1980 Summer | |
| Dimitar Ivanov | Canoe sprint | 2000 Summer | |
| Dimitrie Ivanov | Romania | 1968 Summer | |
| Dobri Ivanov | Bulgaria | Wrestling | 1992 Summer | |
| Dragán Ivanov | Hungary | Athletics | 1968 Summer | |
| Dumitru Ivanov | Romania | Rowing | 1968 Summer | |
| Eduard Ivanov | Soviet Union | Ice hockey | 1964 Winter | |
| Edvin Ivanov | Unified Team | Athletics | 1992 Summer | |
| Evgeni Ivanov | Bulgaria | Volleyball | 1996 Summer, 2008 Summer | |
| Georgi Ivanov | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Georgi Ivanov | Wrestling | 2016 Summer | |
| Haralambie Ivanov | Romania | Canoe sprint | 1964 Summer, 1968 Summer | |
| Igor Ivanov | Soviet Union | Rowing | 1956 Summer | |
| Igor Ivanov | Russia | Ice hockey | 1994 Winter | |
| Ion Ivanov | Romania | Wrestling | 1980 Summer | |
| Ivan Ivanov | Bulgaria | Shooting | 1952 Summer | |
| Ivan Ivanov | Wrestling | 1964 Summer | |
| Ivan Ivanov | Soviet Union | Athletics | 1972 Summer | |
| Ivan Ivanov | Bulgaria | Volleyball | 1972 Summer | |
| Ivan Ivanov | Archery | 1992 Summer | |
| Ivan Ivanov | Badminton | 1992 Summer | |
| Ivan Ivanov | Weightlifting | 1992 Summer, 1996 Summer, 2000 Summer | |
| Ivan Ivanov | Artistic gymnastics | 1996 Summer | |
| Ivan Ivanov | Wrestling | 1996 Summer | |
| Ivan Ivanov | Kyrgyzstan | Swimming | 2000 Summer | |
| Ivan Ivanov | Bulgaria | Wrestling | 2008 Summer | |
| Ivan Ivanov | Kazakhstan | Athletics | 2016 Summer | |
| Ivan Ivanov | Ukraine | Triathlon | 2016 Summer | |
| Ivaylo Ivanov | Bulgaria | Judo | 2016 Summer, 2020 Summer, 2024 Summer | |
| Khristian Ivanov | Artistic gymnastics | 2000 Summer | |
| Kiril Ivanov | Volleyball | 1964 Summer | |
| Kirill Ivanov | Soviet Union, Unified Team | Shooting | 1988 Summer, 1992 Summer | |
| Leonid Ivanov | Soviet Union | Football | 1952 Summer | |
| Leonid Ivanov | Rowing | 1960 Summer | |
| Leonid Ivanov | Athletics | 1964 Summer | |
| Lyubomir Ivanov | Bulgaria | 1988 Summer | |
| Marin Ivanov [ Wikidata ] | Fencing | 1980 Summer | |
| Martin Ivanov | Judo | 2012 Summer | |
| Mercurie Ivanov | Romania | Canoe sprint | 1960 Summer | |
| Mikhail Ivanov | Soviet Union | Water polo | 1980 Summer, 1988 Summer | |
| Mikhail Ivanov | Russia | Cross country skiing | 2002 Winter | |
| Nikolay Ivanov | Soviet Union | Athletics | 1968 Summer | |
| Nikolay Ivanov | Rowing | 1972 Summer, 1976 Summer | |
| Nikolay Ivanov | Kazakhstan | Cross country skiing | 1994 Winter | |
| Nikolay Ivanov | Bulgaria | Volleyball | 1996 Summer | |
| Petar Ivanov | Football | 1924 Summer | |
| Petar Ivanov | Italy | Rowing | 1924 Summer | |
| Petar Ivanov | Bulgaria | Wrestling | 1980 Summer | |
| Ruslan Ivanov | Moldova | Road cycling | 1996 Summer, 2004 Summer | |
| Sergei Ivanov | Russia | 2000 Summer, 2008 Summer | |
| Sergey Ivanov | Athletics | 2008 Summer | |
| Svetoslav Ivanov | Bulgaria | Equestrian dressage | 1980 Summer | |
| Tihomir Ivanov | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Vadim Ivanov | Unified Team | 1992 Summer | |
| Valentin Ivanov | Bulgaria | Wrestling | 1988 Summer | |
| Valentin Ivanov | Soviet Union | Football | 1956 Summer | |
| Valeriy Ivanov | Kazakhstan | Biathlon | 1998 Winter | |
| Vasily Ivanov | Unified Team | Swimming | 1992 Summer | |
| Viktor Ivanov | Soviet Union | Rowing | 1956 Summer | |
| Viktor Ivanov | Boxing | 1976 Summer | |
| Vitali Ivanov | Russia | Handball | 2004 Summer, 2008 Summer | |
| Vladimir Ivanov | Soviet Union | Speed skating | 1976 Winter | |
| Vladimir Ivanov | Bulgaria | Athletics | 1980 Summer | |
| Vladimir Ivanov | Russia, Russian Olympic Committee | Badminton | 2012 Summer, 2016 Summer, 2020 Summer | |
| Volodymyr Ivanov | Soviet Union | Volleyball | 1968 Summer | |
| Volodymyr Ivanov | Boxing | 1972 Summer | |
| Vyacheslav Ivanov | Rowing | 1956 Summer, 1960 Summer, 1964 Summer | |
| Yavor Ivanov | Bulgaria | Figure skating | 1984 Winter | |
| Yordan Ivanov | Equestrian eventing | 1972 Summer | |
| Yordan Ivanov | Bobsleigh | 1992 Winter | |
| Yury Ivanov | Soviet Union | Fencing | 1956 Summer | |
| Yury Ivanov | Ski jumping | 1980 Winter | |
| Alina Ivanova | Unified Team | Athletics | 1992 Summer | |
| Antonina Ivanova | Soviet Union | 1972 Summer | |
| Borislava Ivanova | Bulgaria | Canoe sprint | 1988 Summer | |
| Evgeniya Ivanova | Russia, Russian Olympic Committee | Water polo | 2012 Summer, 2016 Summer, 2020 Summer | |
| Kira Ivanova | Soviet Union | Figure skating | 1980 Winter, 1984 Winter, 1988 Winter | |
| Lidiya Ivanova | Artistic gymnastics | 1956 Summer, 1960 Summer | |
| Lyudmyla Ivanova | Ukraine | Figure skating | 1994 Winter | |
| Nastassia Ivanova | Belarus | Athletics | 2012 Summer, 2016 Summer | |
| Natalia Ivanova | Russia | Taekwondo | 2000 Summer | |
| Natalia Ivanova | Sailing | 2004 Summer, 2008 Summer | |
| Natalia Ivanova | Tajikistan | Wrestling | 2004 Summer | |
| Natalya Ivanova | Russia | Athletics | 2004 Summer | |
| Nevyana Ivanova | Bulgaria | Rowing | 1988 Summer | |
| Olga Ivanova | Russia | Athletics | 2008 Summer | |
| Olimpiada Ivanova | 2004 Summer | |
| Sofia Ivanova | Bulgaria | Rhythmic gymnastics | 2024 Summer | |
| Tatiana Ivanova | Russia, Russian Olympic Committee | Luge | 2010 Winter, 2014 Winter, 2022 Winter | |
| Valentina Ivanova | Russia | Athletics | 1996 Summer | |
| Yelena Ivanova | Soviet Union | Swimming | 1980 Summer | |
| Yelena Ivanova | Kazakhstan | Diving | 1996 Summer | |
| Yordanka Ivanova | Bulgaria | Athletics | 1976 Summer | |
| Yuliya Ivanova | Russia | Rhythmic gymnastics | 1996 Summer | |
| Yuliya Ivanova | Cross country skiing | 2014 Winter | |
| Zoya Ivanova | Soviet Union | Athletics | 1988 Summer | |
| Ana Ivanovic | Serbia | Tennis | 2012 Summer, 2016 Summer | |
| Vane Ivanović | Yugoslavia | Athletics | 1936 Summer | |
| Zoran Ivanović | Artistic gymnastics | 1972 Summer | |
| Ivan Ivanovitch [ Wikidata ] | France | Fencing | 1900 Summer | |
| Dario Ivanovski | North Macedonia | Athletics | 2024 Summer | |
| Viacheslav Ivanovski | Israel | Weightlifting | 1996 Summer | |
| Roman Ivanovsky | Russia | Swimming | 1996 Summer | |
| Mike Ivanow | United States | Football | 1972 Summer | |
| Dmytro Ivanusa | Ukraine | Swimming | 1996 Summer | |
| Gyula Iványi | Hungary | Fencing | 1900 Summer | |
| Oleksandr Ivanyshyn | Ukraine | Bobsleigh | 2002 Winter | |
| Ilya Ivanyuk | Russian Olympic Committee | Athletics | 2020 Summer | |
| Tetyana Ivanyushkyna | Ukraine | Volleyball | 1996 Summer | |
| Morten Ivarsen | Norway | Canoe sprint | 1988 Summer, 1996 Summer | |
| Lars Ivarsson | Ice hockey | 1988 Winter | |
| Elena Ivashchenko | Russia | Judo | 2012 Summer | |
| Igor Ivashintsov | Belarus | Sailing | 2000 Summer | |
| Ilya Ivashka | Tennis | 2020 Summer | |
| Markiyan Ivashko | Ukraine | Archery | 2008 Summer, 2012 Summer | |
| Veronika Ivasiuk | Weightlifting | 2016 Summer | |
| Ivana Ivčevska | North Macedonia | Alpine skiing | 2006 Winter | |
| Yevgeniy Ivchenko | Soviet Union | Athletics | 1972 Summer, 1980 Summer | |
| Şaziye İvegin | Turkey | Basketball | 2012 Summer, 2016 Summer | |
| Adrienne Iven | Cameroon | Football | 2012 Summer | |
| Luis da Costa Ivens Ferraz | Portugal | Equestrian jumping | 1928 Summer | |
| Robert Ivers | Australia | Judo | 2000 Summer | |
| Anne Iversen | Denmark | Athletics | 1948 Summer | |
| Bjarne Iversen | Norway | Cross country skiing | 1936 Winter | |
| Bolette Nyvang Iversen | Denmark | Canoe sprint | 2020 Summer | |
| Emil Iversen | Norway | Cross country skiing | 2018 Winter, 2022 Winter | |
| Ivar Iversen | Canoe sprint | 1936 Summer | |
| Jan Georg Iversen | Track cycling | 1976 Summer | |
| Ole Iversen | Artistic gymnastics | 1908 Summer | |
| Ole Christian Iversen | Speed skating | 1972 Winter | |
| Rikke Iversen | Denmark | Handball | 2024 Summer | |
| Sarah Iversen | 2024 Summer | |
| Svend Iversen | Sailing | 1948 Summer | |
| Trond Iversen | Norway | Cross country skiing | 2002 Winter, 2006 Winter | |
| Allen Iverson | United States | Basketball | 2004 Summer | |
| Dennis Iverson | Australia | Judo | 2008 Summer | |
| Håkon Iversøn | Norway | Swimming | 1976 Summer | |
| Clay Ives | Canada, United States | Luge | 1994 Winter, 1998 Winter, 2002 Winter | |
| Edward Ives | United States | Rowing | 1984 Summer, 1988 Summer | |
| Harold Ives | Great Britain | 1928 Summer | |
| Tom Iveson | Short track speed skating | 2010 Winter | |
| Mitch Ivey | United States | Swimming | 1968 Summer, 1972 Summer | |
| Jelena Ivezić | Croatia | Basketball | 2012 Summer | |
| Bryan Ivie | United States | Volleyball | 1992 Summer, 1996 Summer | |
| Tatyana Ivinskaya | Soviet Union | Basketball | 1980 Summer | |
| Kiril Ivkov | Bulgaria | Football | 1968 Summer | |
| Milutin Ivković | Yugoslavia | 1928 Summer | |
| Tomislav Ivković | 1980 Summer, 1984 Summer | |
| Vladimir Ivković | Water polo | 1952 Summer, 1956 Summer | |
| Alexandru Ivlev | Moldova | Swimming | 2000 Summer, 2004 Summer | |
| Sergey Ivlev | Russia | Water polo | 1996 Summer | |
| Konstantin Ivliev | Russian Olympic Committee | Short track speed skating | 2022 Winter | |
| Natalya Ivoninskaya | Kazakhstan | Athletics | 2008 Summer, 2012 Summer | |
| Jorge Ivorra | Argentina | Field hockey | 1976 Summer | |
| Aleksandra Ivošev | Independent Olympians, Serbia and Montenegro | Shooting | 1992 Summer, 1996 Summer, 2000 Summer | |
| Pajo Ivošević | Independent Olympians | Wrestling | 1992 Summer | |
| Aleksandar Ivović | Montenegro | Water polo | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Marko Ivović | Serbia | Volleyball | 2024 Summer | |
| Amit Ivry | Israel | Swimming | 2012 Summer, 2016 Summer | |
| Patrick Ivuti | Kenya | Athletics | 2000 Summer | |
| Sjors van Iwaarden | Netherlands | Rowing | 1992 Summer, 1996 Summer | |
| Hoka Iwabuchi | Japan | Art competitions | 1936 Summer | |
| Isao Iwabuchi | Football | 1956 Summer | |
| Kaori Iwabuchi | Ski jumping | 2018 Winter, 2022 Winter | |
| Mana Iwabuchi | Football | 2012 Summer, 2020 Summer | |
| Reira Iwabuchi | Snowboarding | 2018 Winter, 2022 Winter | |
| Satoshi Iwabuchi | Tennis | 1996 Summer, 2000 Summer | |
| Yumi Iwabuchi | Softball | 2004 Summer | |
| Michinori Iwaguro | Rowing | 1992 Summer, 1996 Summer | |
| Tomomi Iwahara | Ice hockey | 2018 Winter | |
| Toyoko Iwahara | Volleyball | 1968 Summer, 1972 Summer | |
| Kunio Iwahashi | Field hockey | 1960 Summer, 1964 Summer | |
| Manabu Iwahashi | Equestrian jumping, Equestrian eventing | 1936 Summer | |
| Norimasa Iwai | Artistic gymnastics | 2000 Summer | |
| Masami Iwaki | Shooting | 1996 Summer | |
| Hisashi Iwakuma | Baseball | 2004 Summer | |
| Yoshiomi Iwama | Athletics | 1976 Summer | |
| Yoshitaka Iwamizu | 2004 Summer, 2008 Summer | |
| Akiko Iwamoto | Rowing | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Kazuyuki Iwamoto | Swimming | 1964 Summer | |
| Koji Iwamoto | Ice hockey | 1964 Winter, 1968 Winter, 1972 Winter | |
| Shohei Iwamoto | Modern pentathlon | 2016 Summer, 2020 Summer | |
| Takeshi Iwamoto | Ice hockey | 1980 Winter | |
| Shunichi Iwamura | Canoe sprint | 1964 Summer | |
| Beata Iwanek | Poland | Archery | 1988 Summer | |
| Stanisław Iwaniak | Volleyball | 1972 Summer | |
| Kaho Iwano | Japan | Water polo | 2020 Summer | |
| Sachimi Iwao | Field hockey | 2004 Summer, 2008 Summer, 2012 Summer | |
| Joji Iwaoka | Ice hockey | 1960 Winter | |
| Kaori Iwasaki | Swimming | 1984 Summer | |
| Kunihiro Iwasaki | 1964 Summer, 1968 Summer | |
| Kyoko Iwasaki | 1992 Summer, 1996 Summer | |
| Margaret Iwasaki | Canada | 1960 Summer | |
| Saburo Iwasaki | Japan | Cross country skiing | 1932 Winter | |
| Shinichi Iwasaki | Ice hockey | 1998 Winter | |
| Tomás Iwasaki | Peru | Football | 1960 Summer | |
| Toshihiko Iwasaki | Japan | Athletics | 1992 Summer | |
| Yozo Iwasaki | Rowing | 1956 Summer | |
| Hitoki Iwase | Baseball | 2004 Summer, 2008 Summer | |
| Akihiro Iwashima | Volleyball | 1984 Summer, 1988 Summer | |
| Azusa Iwashimizu | Football | 2008 Summer, 2012 Summer | |
| Satsuo Iwashita | Athletics | 1964 Summer | |
| Yuta Iwashita | Handball | 2020 Summer | |
| Jarosław Iwaszkiewicz | Poland | Art competitions | 1948 Summer | |
| Minoru Iwata | Japan | Volleyball | 1984 Summer | |
| Tokusaburo Iwata | Shooting | 1956 Summer | |
| Yoshiko Iwata | Badminton | 2000 Summer | |
| Kazuhiro Iwatani | Equestrian eventing | 1988 Summer, 1992 Summer, 1996 Summer | |
| Takatoshi Iwatsuki | Rowing | 1992 Summer | |
| Naomine Iwaya | Alpine skiing | 1984 Winter | |
| Suguru Iwazaki | Baseball | 2020 Summer | |
| Takanobu Iwazaki | Weightlifting | 2004 Summer | |
| Andrzej Iwiński | Poland | Sailing | 1968 Summer, 1980 Summer | |
| Furo Iyenemi | Nigeria | Football | 2000 Summer | |
| Nguveren Iyorhe | Basketball | 2004 Summer | |
| Claire Izacard | France | Diving | 1984 Summer | |
| Gorka Izagirre | Spain | Road cycling | 2020 Summer | |
| Ion Izagirre | 2016 Summer, 2020 Summer | |
| Ignacio Izaguirre | Athletics | 1920 Summer | |
| Júnior Izaguirre | Honduras | Football | 2000 Summer | |
| Silverio Izaguirre | Spain | 1920 Summer | |
| Abdullah Al-Izani | Yemen | Wrestling | 1996 Summer | |
| Shannon Izar | France | Rugby sevens | 2016 Summer, 2020 Summer | |
| Gabriel Izard | Bobsleigh | 1924 Winter | |
| Jean-Michel Izart | Rowing | 1976 Summer | |
| Makiko Izawa | Japan | Athletics | 1964 Summer | |
| Sandra Izbașa | Romania | Artistic gymnastics | 2008 Summer, 2012 Summer | |
| Raymundo Izcoa | Mexico | Fencing | 1932 Summer | |
| Brahim Izdag | Morocco | Alpine skiing | 1992 Winter | |
| Július Iždinský | Czechoslovakia | Water polo | 1992 Summer | |
| Michal Izdinsky | France | 2016 Summer | |
| Hafida Izem | Morocco | Athletics | 2004 Summer | |
| Katerina Izmailova | Tajikistan | Swimming | 2000 Summer, 2008 Summer, 2012 Summer | |
| Sergey Izmaylov | Ukraine | Athletics | 2000 Summer | |
| Dauda Izobo | Nigeria | Boxing | 2008 Summer | |
| David Izonritei | 1992 Summer | |
| Emmanuel Izonritei | 2004 Summer | |
| Nikoloz Izoria | Georgia | 2004 Summer, 2008 Summer | |
| Danila Izotov | Russia | Swimming | 2008 Summer, 2012 Summer, 2016 Summer | |
| Bernabé Izquierdo | Cuba | Field hockey | 1980 Summer | |
| Carlos Izquierdo | Colombia | Wrestling | 2016 Summer, 2020 Summer | |
| Ilana Izquierdo | Football | 2024 Summer | |
| José Luis Izquierdo | Spain | Weightlifting | 1960 Summer | |
| Lilia Izquierdo | Cuba | Volleyball | 1992 Summer, 1996 Summer | |
| Luis Izquierdo | Colombia | Wrestling | 2004 Summer | |
| Miguel Izquierdo | Cuba | Handball | 1980 Summer | |
| Éva Izsák | Hungary | Road cycling | 1992 Summer | |
| Szabolcs Izsák | Sailing | 1968 Summer, 1972 Summer | |
| Hiroshi Izumi | Japan | Judo | 2004 Summer, 2008 Summer | |
| Hiroyuki Izumi | Canoe sprint | 1984 Summer, 1988 Summer | |
| Miyuki Izumi | Football | 1996 Summer | |
| Hiroaki Izumikawa | Modern pentathlon | 1988 Summer | |
| Masayuki Izumikawa | Volleyball | 1992 Summer | |
| Shunsuke Izumiya | Athletics | 2020 Summer, 2024 Summer | |
| Ana María Izurieta | Spain | Artistic gymnastics | 2012 Summer | |
| Kenzo Izutsu | Japan | Swimming | 1960 Summer | |
| Hasli Izwan | Malaysia | Shooting | 2008 Summer | |
| Alex Izykowski | United States | Short track speed skating | 2006 Winter | |