| Name | Nation | Sport | Games | Notes |
|---|
| Amosa Gbadamosi | Ghana | Football | 1968 Summer | |
| Nureni Gbadamosi | Nigeria | Boxing | 1980 Summer | |
| Stanley Gbagbeke | Athletics | 2012 Summer | |
| Ruth Gbagbi | Ivory Coast | Taekwondo | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Jessika Gbai | Athletics | 2024 Summer | |
| Seydou Gbané | Taekwondo | 2020 Summer | |
| Tommy Gbay | Liberia | Boxing | 1988 Summer | |
| Michael Gbinije | Nigeria | Basketball | 2016 Summer | |
| Franca Gbodo | Weightlifting | 2000 Summer, 2004 Summer | |
| Étienne Loco Gbodolle | Benin | Boxing | 1980 Summer | |
| Bertrand Gbongou Liango | Central African Republic | Taekwondo | 2004 Summer | |
| Viera Gbúrová | Slovakia | Luge | 2014 Winter | |
| Lukáš Gdula | Czech Republic | Athletics | 2016 Summer, 2020 Summer | |
| Ge Cheng | China | Badminton | 1996 Summer | |
| Ge Fei | 1996 Summer, 2000 Summer | |
| Ge Jianqing | Water polo | 1988 Summer | |
| Ge Manqi | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Misha Ge | Uzbekistan | Figure skating | 2014 Winter, 2018 Winter | |
| Rong Ge [ Wikidata ] | China | Snowboarding | 2022 Winter | |
| Ge Weiqing | Water polo | 2008 Summer | |
| David de Gea | Spain | Football | 2012 Summer | |
| Ibrahim Geagea | Lebanon | Alpine skiing | 1948 Winter, 1952 Winter, 1956 Winter, 1960 Winter | |
| Nazih Geagea [ Wikidata ] | 1960 Winter, 1964 Winter | |
| Fahad Al-Geaid | Saudi Arabia | Equestrian jumping | 2000 Summer | |
| Daniel Geale | Australia | Boxing | 2000 Summer | |
| Ion Geantă | Romania | Canoe sprint | 1980 Summer, 1984 Summer | |
| Donald Geary | United States | Ice hockey | 1948 Winter | |
| Guillermo Geary | Argentina | Athletics | 1948 Summer | |
| Lisa Geary | Canada | Swimming | 1976 Summer | |
| Gabriel Geay | Tanzania | Athletics | 2020 Summer, 2024 Summer | |
| Katarzyna Gębala | Poland | Cross country skiing | 1998 Winter | |
| Wiesław Gębala | 1976 Winter | |
| Anna Gębala-Duraj | 1968 Winter, 1972 Winter, 1976 Winter | |
| Dalia El-Gebaly | Egypt | Artistic swimming | 2008 Summer, 2012 Summer | |
| Vítězslav Gebas | Czech Republic | Canoe slalom | 2016 Summer | |
| Gabriele Gebauer | Austria | Handball | 1984 Summer | |
| Paul Gebauer [ Wikidata ] | Germany | Water polo | 1900 Summer | |
| Luke Gebbie | Philippines | Swimming | 2020 Summer | |
| Ernst Gebendinger | Switzerland | Artistic gymnastics | 1952 Summer | |
| Houry Gebeshian | Armenia | 2016 Summer | |
| Max Gebhardt | Germany | Athletics | 1936 Summer | |
| Melanie Gebhardt | Canoe sprint | 2020 Summer | |
| Mike Gebhardt | United States | Sailing | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Steffen Gebhardt | Germany | Modern pentathlon | 2004 Summer, 2008 Summer, 2012 Summer | |
| Trihas Gebre | Spain | Athletics | 2016 Summer | |
| Egzi Gebre-Gebre | Ethiopia | 1972 Summer | |
| Tadesse Gebregiorgis | Boxing | 1964 Summer, 1968 Summer | |
| Zeragaber Gebrehiwot [ Wikidata ] | Road cycling | 1980 Summer | |
| Ahmed Gebrel | Palestine | Swimming | 2012 Summer, 2016 Summer | |
| Gebregziabher Gebremariam | Ethiopia | Athletics | 2004 Summer, 2012 Summer | |
| Mekonnen Gebremedhin | 2012 Summer, 2016 Summer | |
| Dejen Gebremeskel | 2012 Summer, 2016 Summer | |
| Tsigie Gebreselama | 2020 Summer, 2024 Summer | |
| Rahel Gebresilassie [ Wikidata ] | Swimming | 2016 Summer | |
| Hagos Gebrhiwet | Athletics | 2012 Summer, 2016 Summer, 2024 Summer | |
| Eyeru Tesfoam Gebru | Refugee Olympic Team | Road cycling | 2024 Summer | |
| Hansas Gecas | Lithuania | Football | 1924 Summer | |
| Kiril Gechevski | Bulgaria | Shooting | 1980 Summer | |
| Tibor Gécsek | Hungary | Athletics | 1988 Summer, 1992 Summer, 2000 Summer | |
| Erika Géczi | Canoe sprint | 1988 Summer | |
| István Géczi | Football | 1972 Summer | |
| Tibor Géczi | Biathlon | 1992 Winter | |
| Per Gedda | Sweden | Sailing | 1936 Summer, 1952 Summer | |
| Dietmar Gedde | Germany, East Germany | 1964 Summer, 1972 Summer | |
| Caroline Gedde-Dahl | Norway | Alpine skiing | 1994 Winter | |
| John Geddes | Great Britain | Track cycling | 1956 Summer | |
| Jamil Gedeão | Brazil | Basketball | 1956 Summer | |
| Guram Gedekhauri | Soviet Union | Wrestling | 1988 Summer | |
| Ghassan Gedeon-Achi | Lebanon | Alpine skiing | 2010 Winter | |
| Elene Gedevanishvili | Georgia | Figure skating | 2006 Winter, 2010 Winter, 2014 Winter | |
| Edward Gedge | Great Britain | Modern pentathlon | 1920 Summer | |
| Kazim Gedik | Turkey | Wrestling | 1960 Summer | |
| Władysław Gędłek | Poland | Football | 1952 Summer | |
| Jurgis Gedminas | Lithuania | Road cycling | 1928 Summer | |
| György Gedó | Hungary | Boxing | 1968 Summer, 1972 Summer, 1976 Summer, 1980 Summer | |
| Imre Gedővári | Fencing | 1976 Summer, 1980 Summer, 1988 Summer | |
| Aniuar Geduev | Russia | Wrestling | 2016 Summer | |
| Justin Geduld | South Africa | Rugby sevens | 2016 Summer, 2020 Summer | |
| Artūrs Gedvillo | Latvia | Athletics | 1924 Summer | |
| Antonie de Gee [ Wikidata ] | Netherlands | Shooting | 1908 Summer | |
| Derek Gee | Canada | Track cycling, Road cycling | 2020 Summer, 2024 Summer | |
| Diana Gee | United States | Table tennis | 1988 Summer, 1992 Summer | |
| John Gee | Great Britain | Bobsleigh | 1928 Winter | |
| Mark Gee | Biathlon | 1994 Winter, 1998 Winter, 2002 Winter | |
| Nancy Gee | Canada | Alpine skiing | 1988 Winter | |
| Pie Geelen | Netherlands | Swimming | 1996 Summer | |
| Lucienne Geels | Softball | 1996 Summer | |
| Martijn van Geemen | Sailing | 1996 Summer | |
| Alexander van Geen | Modern pentathlon | 1936 Summer | |
| Anna Maria van Geene | Artistic gymnastics | 1948 Summer | |
| Miek van Geenhuizen | Field hockey | 2004 Summer, 2008 Summer | |
| Jelle Geens | Belgium | Triathlon | 2016 Summer, 2020 Summer, 2024 Summer | |
| Joseph Geens [ Wikidata ] | Shooting | 1908 Summer | |
| Charlotte Geer | United States | Rowing | 1984 Summer | |
| Gustaf de Geer | Sweden | Equestrian jumping | 1960 Summer | |
| Judy Geer | United States | Rowing | 1976 Summer, 1984 Summer | |
| René Geeraert | Belgium | Athletics | 1936 Summer | |
| Patrick Geering | Switzerland | Ice hockey | 2018 Winter | |
| Piet-Hein Geeris | Netherlands | Field hockey | 2000 Summer | |
| Ernst Geerling | Germany | Athletics | 1932 Summer | |
| Luz Marina Geerman | Aruba | 2000 Summer | |
| Wilfried Geeroms | Belgium | 1964 Summer, 1968 Summer | |
| Anders Geert Jensen | Denmark | Sailing | 1988 Summer | |
| Andreas Gees | Switzerland | Bobsleigh | 2006 Winter | |
| Werner Geeser | Cross country skiing | 1972 Winter | |
| Anton Geesink | Netherlands | Judo | 1964 Summer | |
| Dennis van der Geest | 2000 Summer, 2004 Summer, 2008 Summer | |
| Elco van der Geest | Netherlands, Belgium | 2004 Summer, 2012 Summer | |
| Sathi Geetha | India | Athletics | 2004 Summer, 2008 Summer | |
| Margot van Geffen | Netherlands | Field hockey | 2012 Summer, 2016 Summer, 2020 Summer | |
| Pavel Geffert | Czech Republic | Ice hockey | 1994 Winter | |
| Luiza Gega | Albania | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Judy Gegan | Great Britain | Swimming | 1964 Summer | |
| Walter Gegan | United States | Athletics | 1928 Summer | |
| Vladimer Gegeshidze | Georgia | Wrestling | 2012 Summer | |
| Levon Geghamyan | Armenia | 1996 Summer, 2000 Summer, 2004 Summer | |
| André Gegout | France | Speed skating | 1924 Winter | |
| Sue Geh | Australia | Basketball | 1984 Summer | |
| Milka Gehani | Sri Lanka | Artistic gymnastics | 2020 Summer | |
| Alexander Gehbauer | Austria | Cycling mountain bike | 2012 Summer, 2016 Summer | |
| Dieter Gehmacher | Bobsleigh | 1976 Winter | |
| Hilary Gehman | United States | Rowing | 2000 Summer, 2004 Summer | |
| Erich Gehmann | West Germany | Shooting | 1968 Summer | |
| Günther Gehmert | Germany | Athletics | 1936 Summer | |
| Hermann Gehri | Switzerland | Wrestling | 1924 Summer | |
| Adelaide Gehrig | United States | Fencing | 1924 Summer | |
| Hans Gehrig | Canada | Bobsleigh | 1968 Winter, 1972 Winter | |
| Georg Gehring | Germany | Wrestling | 1928 Summer, 1932 Summer, 1936 Summer | |
| Gerhard Gehring | West Germany | Biathlon, Cross country skiing | 1968 Winter, 1972 Winter | |
| Hanni Gehring | Germany | Cross country skiing | 1952 Winter | |
| Lana Gehring | United States | Short track speed skating | 2010 Winter, 2018 Winter | |
| Claus Gehrke | West Germany | Biathlon | 1976 Winter | |
| Roland Gehrke | East Germany | Wrestling | 1976 Summer, 1980 Summer | |
| Don Gehrmann | United States | Athletics | 1948 Summer | |
| Heike Gehrmann | West Germany | Field hockey | 1988 Summer | |
| Robert Geib | Luxembourg | Football | 1936 Summer | |
| Hermann Geibel | Germany | Art competitions | 1936 Summer | |
| Oscar Geier | Switzerland | Bobsleigh | 1932 Winter | |
| John Geiger | United States | Rowing | 1900 Summer | |
| Jürgen Geiger | West Germany | Artistic gymnastics | 1984 Summer | |
| Karl Geiger | Austria | Sailing | 1964 Summer, 1968 Summer | |
| Karl Geiger | Germany | Ski jumping | 2018 Winter, 2022 Winter | |
| Melinda Geiger | Romania | Handball | 2016 Summer | |
| Rolf Geiger | Germany | Football | 1956 Summer | |
| Vinzenz Geiger | Nordic combined | 2018 Winter, 2022 Winter | |
| Jonas von Geijer | Sweden | Sailing | 2008 Summer, 2012 Summer | |
| Carry Geijssen | Netherlands | Speed skating | 1968 Winter | |
| Georgina Geikie | Great Britain | Shooting | 2012 Summer | |
| Dietmar Geilich | East Germany | Boxing | 1976 Summer, 1980 Summer | |
| August Geinger | Belgium | Rowing | 1924 Summer | |
| Amro El-Geioushy | Egypt | Handball | 1996 Summer, 2000 Summer | |
| Johan Geirnaert | Belgium | Athletics | 1984 Summer | |
| Oliver Geis | Germany | Shooting | 2016 Summer, 2020 Summer | |
| Paul Geis | United States | Athletics | 1976 Summer | |
| Mohamed Geisa | Egypt | Weightlifting | 1936 Summer | |
| Luisa Geiselsöder | Germany | Basketball | 2024 Summer | |
| Natalie Geisenberger | Luge | 2010 Winter, 2014 Winter, 2018 Winter, 2022 Winter | |
| Robert Geiser | Switzerland | Basketball | 1948 Summer | |
| Leonid Geishtor | Soviet Union | Canoe sprint | 1960 Summer | |
| Donald Geisler | Philippines | Taekwondo | 2000 Summer, 2004 Summer | |
| Hans-Joachim Geisler | West Germany | Swimming | 1972 Summer, 1976 Summer | |
| Ilse Geisler | Germany | Luge | 1964 Winter | |
| Manfred Geisler | Football | 1964 Summer | |
| Manfred Geisler | East Germany | Shooting | 1972 Summer | |
| Marco Geisler | Germany | Rowing | 2000 Summer, 2004 Summer | |
| Moritz Geisreiter | Speed skating | 2014 Winter, 2018 Winter | |
| Hermann Geißler | Austria | Athletics | 1928 Summer | |
| Ines Geissler | East Germany | Swimming | 1980 Summer | |
| Oliver Geissmann | Liechtenstein | Shooting | 2000 Summer, 2004 Summer, 2008 Summer | |
| Kaufman Geist | United States | Athletics | 1920 Summer | |
| Hans Geister | Germany | 1952 Summer | |
| Johann Geiszler | Austria | Rowing | 1952 Summer | |
| Eugen Geiwitz | Germany | Fencing | 1936 Summer | |
| Mickaël Gelabale | France | Basketball | 2012 Summer, 2016 Summer | |
| Francisco Gelaberti | Argentina | Boxing | 1956 Summer | |
| Elroy Gelant | South Africa | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Rusena Gelanteh | Indonesia | Archery | 1992 Summer | |
| Jaba Gelashvili | Georgia | Alpine skiing | 2010 Winter | |
| Miklós Gelbai | Hungary | Boxing | 1928 Summer | |
| Alexandre Gelbert | Switzerland | Sailing | 1936 Summer | |
| Rose Gelbert | France | Golf | 1900 Summer | |
| Nils Gelbjerg-Hansen | Denmark | Alpine skiing | 1992 Winter | |
| Georg Gelbke | Germany | Art competitions | 1928 Summer, 1932 Summer | |
| Alan Geldard | Great Britain | Track cycling | 1948 Summer | |
| Abe Geldenhuys | South Africa | Wrestling | 1956 Summer, 1960 Summer | |
| Gharde Geldenhuys | Namibia | Artistic gymnastics | 2000 Summer | |
| Zenéy Geldenhuys | South Africa | Athletics | 2024 Summer | |
| Cor van Gelder | Netherlands | Swimming | 1928 Summer | |
| Max van Gelder | Water polo | 1952 Summer | |
| Tinus van Gelder | Track cycling | 1948 Summer | |
| Yuri van Gelder | Artistic gymnastics | 2016 Summer | |
| Robert Gelée | France | Rowing | 1900 Summer | |
| József Gelei | Hungary | Football | 1964 Summer | |
| Imre Gelencsér | Judo | 1980 Summer | |
| Nándor Gelénesi | Wrestling | 1996 Summer | |
| Deresa Geleta | Ethiopia | Athletics | 2024 Summer | |
| Ján Geleta | Czechoslovakia | Football | 1964 Summer | |
| Gottfried Gelfort | Germany | Rowing | 1912 Summer | |
| Gaston Gélibert | France | Art competitions | 1928 Summer | |
| Moussa El-Gelidi | United Arab Republic | Boxing | 1960 Summer | |
| Juliette Gelin [ Wikidata ] | France | Volleyball | 2024 Summer | |
| Antoine Gélinas-Beaulieu | Canada | Speed skating | 2022 Winter | |
| Deborah Gelisio | Italy | Shooting | 1996 Summer, 2000 Summer, 2008 Summer | |
| Peter Gelle | Slovakia | Canoe sprint | 2012 Summer, 2016 Summer, 2020 Summer | |
| Pierre Gellé [ Wikidata ] | France | Swimming, Water polo | 1900 Summer | |
| Sándor Gelle | Hungary | Canoe sprint | 1936 Summer | |
| László Gellér | Ski jumping | 1964 Winter, 1968 Winter | |
| Mauricette Geller | Belgium | Artistic gymnastics | 1988 Summer | |
| Max Geller | Israel | Wrestling | 1992 Summer | |
| Mihály Gellér | Hungary | Ski jumping | 1968 Winter | |
| Imre Gellért | Artistic gymnastics | 1908 Summer, 1912 Summer | |
| Antal Gelley | Rowing | 1972 Summer | |
| Patrick Gellineau | Trinidad and Tobago | Road cycling, Track cycling | 1972 Summer | |
| Elżbieta Gellner | Poland | Swimming | 1956 Summer | |
| Beatrice Gelmini | Italy | Figure skating | 1988 Winter | |
| Ivo Gelov | Bulgaria | Rowing | 1988 Summer | |
| Manfred Gelpke | East Germany | 1968 Summer | |
| Jonas Gelsen | Germany | 2024 Summer | |
| Angelo Gelsomini | Italy | Wrestling | 1960 Summer | |
| Laure Gély | France | Artistic gymnastics | 1996 Summer | |
| Jean Gemayel | Lebanon | Shooting | 1984 Summer | |
| Joseph Gemayel | Fencing | 1964 Summer | |
| Tsehay Gemechu | Ethiopia | Athletics | 2020 Summer | |
| Csanád Gémesi | Hungary | Fencing | 2020 Summer, 2024 Summer | |
| Hasan Gemici | Turkey | Wrestling | 1952 Summer | |
| Alexandre Gemignani | Brazil | Basketball | 1948 Summer | |
| Silvia Gemignani | Italy | Triathlon | 2000 Summer, 2004 Summer | |
| Adam Gemili | Great Britain | Athletics | 2012 Summer, 2016 Summer, 2020 Summer | |
| Gilles Gémise-Fareau | France | 1976 Summer | |
| Vincenzo Gemito | Italy | Art competitions | 1924 Summer | |
| Andrew Gemmell | United States | Swimming | 2012 Summer | |
| Donald Gemmell | New Zealand | Rowing | 1956 Summer | |
| Erin Gemmell | United States | Swimming | 2024 Summer | |
| Kris Gemmell | New Zealand | Triathlon | 2008 Summer, 2012 Summer | |
| Elena Gemo | Italy | Swimming | 2012 Summer | |
| Simon Gempeler | Switzerland | Curling | 2014 Winter | |
| Alphonse Gemuseus | Equestrian jumping | 1924 Summer, 1928 Summer | |
| Bruno Génard | France | Modern pentathlon | 1988 Summer | |
| Frankie Genaro | United States | Boxing | 1920 Summer | |
| Tony Genato | Philippines | Basketball | 1952 Summer, 1956 Summer | |
| Carsta Genäuß | East Germany | Canoe sprint | 1980 Summer | |
| Mustafa Genç | Turkey | Boxing | 1984 Summer | |
| Necmi Gençalp | Wrestling | 1988 Summer | |
| Ali Gençay | Football | 1924 Summer | |
| Angel Genchev | Bulgaria | Weightlifting | 1988 Summer | |
| Veselina Gencheva | Artistic gymnastics | 1996 Summer | |
| Jean Genchi | Great Britain | Rowing | 1984 Summer | |
| Sōsuke Genda | Japan | Baseball | 2020 Summer | |
| Peter Genders | Australia | Canoe sprint | 1984 Summer | |
| William Genders | Great Britain | Road cycling | 1920 Summer | |
| Aleksandr Gendrikson | Soviet Union | Diving | 1972 Summer | |
| Dirk-Jan van Gendt | Netherlands | Volleyball | 2004 Summer | |
| Twan van Gendt | Cycling BMX racing | 2012 Summer, 2016 Summer, 2020 Summer | |
| Ahmed El-Gendy | Egypt | Modern pentathlon | 2020 Summer, 2024 Summer | |
| Eslam El-Gendy | Boxing | 2012 Summer | |
| Dagmar Genee | Netherlands | Water polo | 2020 Summer | |
| Ahmed Kadry Genena | Egypt | Shooting | 1964 Summer | |
| Martha Genenger | Germany | Swimming | 1936 Summer | |
| Tania Gener | Spain | Artistic gymnastics | 2004 Summer | |
| Norman General | Canada | Athletics | 1920 Summer | |
| Pietro Generali | Italy | Basketball | 1980 Summer | |
| Olga Generalova | Russia | Triathlon | 2004 Summer | |
| George Genereux | Canada | Shooting | 1952 Summer | |
| Liliana Genes [ Wikidata ] | Romania | Rowing | 1988 Summer | |
| Mercy Genesis | Nigeria | Wrestling | 2016 Summer | |
| Ivar Genesjö | Sweden | Fencing | 1964 Summer | |
| Alex Genest | Canada | Athletics | 2012 Summer | |
| Lauriane Genest | Track cycling | 2020 Summer, 2024 Summer | |
| Patrick Genestier | France | Canoe sprint | 1976 Summer | |
| Paul Genevay | Athletics | 1960 Summer, 1964 Summer | |
| Paul Genève | 1960 Summer | |
| Carlos Geneyro | Argentina | Field hockey | 1988 Summer, 1992 Summer | |
| Geng Hongbin | China | Shooting | 2004 Summer | |
| Geng Lijuan | Canada | Table tennis | 1996 Summer, 2000 Summer | |
| Geng Wenqiang | China | Skeleton | 2018 Winter | |
| Pietro Genga | Italy | Shooting | 2000 Summer | |
| Aurelio Genghini | Athletics | 1936 Summer | |
| Sarah Gengler | United States | Rowing | 1988 Summer, 1992 Summer | |
| Konstantinos Genidounias | Greece | Water polo | 2016 Summer, 2020 Summer, 2024 Summer | |
| Nicole Génier | Canada | Handball | 1976 Summer | |
| Kevin Geniets | Luxembourg | Road cycling | 2020 Summer | |
| Nester Geniwala'a | Solomon Islands | Athletics | 1996 Summer | |
| Alessia Gennari | Italy | Volleyball | 2016 Summer | |
| Paolo Gennari | Rowing | 1928 Summer | |
| Jort van Gennep | Netherlands | 2016 Summer | |
| Carlos Gennero | Argentina | Cycling mountain bike | 2004 Summer | |
| Lorenzo Gennero | Italy | Snowboarding | 2022 Winter | |
| Georgios Gennimatas | Greece | Athletics | 1896 Summer | |
| Yvonne van Gennip | Netherlands | Speed skating | 1984 Winter, 1988 Winter, 1992 Winter | |
| Alfred Genon | Belgium | Boxing | 1924 Summer | |
| Leonardo Genoni | Switzerland | Ice hockey | 2018 Winter, 2022 Winter | |
| Lucien Genot | France | Shooting | 1948 Summer | |
| Armand Genoud | Switzerland | Cross country skiing | 1956 Winter | |
| Dimitar Genov | Bulgaria | Equestrian jumping | 1980 Summer | |
| Bruna Genovese | Italy | Athletics | 2004 Summer, 2008 Summer | |
| Debra Genovese | United States | Luge | 1980 Winter | |
| Frankie Genovese | Canada | Boxing | 1932 Summer | |
| Judi Genovesi | United States | Figure skating | 1976 Winter | |
| Maura Genovesi | Italy | Shooting | 2008 Summer | |
| Pietro Genovesi | Football | 1928 Summer | |
| Chay Genoway | Canada | Ice hockey | 2018 Winter | |
| Denis Genreau | Australia | Football | 2020 Summer | |
| Marta Gens | Spain | Volleyball | 1992 Summer | |
| Josef Genschieder | Austria | Track cycling | 1936 Summer | |
| Richard Genserowski | Germany | Artistic gymnastics | 1900 Summer | |
| Uwe Gensheimer | Handball | 2016 Summer, 2020 Summer | |
| Henk van Gent | Netherlands | Sailing | 1980 Summer | |
| Johnnie van Gent | South Africa | Water polo | 1952 Summer | |
| Roberto Genta | Argentina | Athletics | 1932 Summer | |
| Steve Genter | United States | Swimming | 1972 Summer | |
| Lee Gentil | Puerto Rico | Sailing | 1968 Summer, 1972 Summer, 1976 Summer | |
| Pascal Gentil | France | Taekwondo | 2000 Summer, 2004 Summer | |
| Pierre Gentil | Shooting | 1912 Summer | |
| Giuseppe Gentile | Italy | Athletics | 1968 Summer, 1972 Summer | |
| Giacomo Gentili | Rowing | 2020 Summer, 2024 Summer | |
| Mario Gentili | Track cycling | 1936 Summer | |
| Roberta Gentini | Equestrian eventing | 1996 Summer | |
| Ashleigh Gentle | Australia | Triathlon | 2016 Summer, 2020 Summer | |
| James Gentle | United States | Field hockey | 1932 Summer, 1936 Summer | |
| Randhir Singh Gentle | India | 1948 Summer, 1952 Summer, 1956 Summer | |
| Robert Gentleman | Great Britain | Water polo | 1948 Summer | |
| Cindy Gentry | United States | Shooting | 2000 Summer | |
| Matt Gentry | Canada | Wrestling | 2008 Summer, 2012 Summer | |
| Yanic Gentry | Mexico | Sailing | 2016 Summer | |
| Michael Gentsch | West Germany | Rowing | 1976 Summer | |
| Yann Genty | France | Handball | 2020 Summer | |
| Inga Gentzel | Sweden | Athletics | 1928 Summer | |
| Peter Gentzel | Handball | 2000 Summer | |
| Igor Genua | Spain | Rugby sevens | 2016 Summer | |
| Angelo Genuin | Italy | Cross country skiing | 1964 Winter | |
| Magda Genuin | 2002 Winter, 2006 Winter, 2010 Winter | |
| Edwin Genung | United States | Athletics | 1932 Summer | |
| León Genuth | Argentina | Wrestling | 1952 Summer | |
| Adrian Genziani | Great Britain | Rowing | 1984 Summer | |
| Harald Genzmer | Germany | Art competitions | 1936 Summer | |
| Francesca Genzo | Italy | Canoe sprint | 2020 Summer | |
| Géo-Charles | France | Art competitions | 1924 Summer | |
| Rémy Geoffroy | Athletics | 1988 Summer | |
| Tao Geoghegan Hart | Great Britain | Road cycling | 2020 Summer | |
| Dionysios Georgakopoulos | Greece | Shooting | 2000 Summer, 2004 Summer | |
| Grigorios Georgakopoulos | Athletics | 1936 Summer | |
| Kostas Georgakopoulos | 1984 Summer | |
| Dimitrios Georgalis | Track cycling | 1996 Summer, 2000 Summer, 2004 Summer | |
| Ginny Georgantas | Softball | 2004 Summer | |
| Nikolaos Georgantas | Athletics, Tug of war | 1904 Summer, 1908 Summer | |
| Simeon Georgaras | Water polo | 1996 Summer | |
| Diamantina Georgatou | Diving | 2004 Summer | |
| Maria Georgatou | Rhythmic gymnastics | 2000 Summer | |
| Allison George | Grenada | Athletics | 2008 Summer | |
| Bevan George | Australia | Field hockey | 2004 Summer, 2008 Summer | |
| Cayla George | Basketball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Charles George | United States | Equestrian eventing | 1928 Summer | |
| Chris George | Baseball | 2000 Summer | |
| Christie George | Nigeria | Football | 2008 Summer | |
| Christopher George | Trinidad and Tobago | Judo | 2016 Summer | |
| Courtney George | United States | Curling | 2006 Winter | |
| David George | South Africa | Track cycling, Road cycling | 1996 Summer, 2000 Summer, 2008 Summer | |
| Ed Don George | United States | Wrestling | 1928 Summer | |
| Emma George | Australia | Athletics | 2000 Summer | |
| Henry George | Belgium | Track cycling | 1920 Summer | |
| Howard George | United States | Wrestling | 1960 Summer | |
| Jim George | Weightlifting | 1956 Summer, 1960 Summer | |
| John George | Great Britain | Athletics | 1908 Summer | |
| Jules George | Belgium | Rowing | 1924 Summer | |
| Lesle-Ann George | South Africa | Field hockey | 2008 Summer, 2012 Summer | |
| Maureen George | Zimbabwe | 1980 Summer | |
| Patience Okon George | Nigeria | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Paul George | United States | Basketball | 2016 Summer | |
| Pete George | Weightlifting | 1948 Summer, 1952 Summer, 1956 Summer | |
| Phylicia George | Canada | Athletics, Bobsleigh | 2012 Summer, 2016 Summer, 2018 Winter | |
| Regina George | Nigeria | Athletics | 2012 Summer | |
| Richard George | United States | 1976 Summer | |
| Robert George | France | Ice hockey | 1928 Winter | |
| Robert George | Belgium | Rowing | 1952 Summer | |
| Rowland George | Great Britain | 1932 Summer | |
| Rudolph George | Sierra Leone | Athletics | 1980 Summer | |
| Samantha George | Canada | 2000 Summer | |
| Saude George | Kenya | Field hockey | 1960 Summer, 1964 Summer | |
| Thomas George | Great Britain | Rowing | 2020 Summer, 2024 Summer | |
| Tyler George | United States | Curling | 2018 Winter | |
| Werner George | Germany | Ice hockey | 1936 Winter | |
| Winston George | Guyana | Athletics | 2012 Summer, 2016 Summer | |
| Natasha Sara Georgeos | Saint Lucia | Swimming | 2004 Summer | |
| Chloé Georges | France | Freestyle skiing | 2010 Winter | |
| Gary Georges | Haiti | Athletics | 1972 Summer | |
| Laura Georges | France | Football | 2012 Summer | |
| Aurelian Georgescu | Romania | Artistic gymnastics | 1980 Summer | |
| Crina Georgescu | Volleyball | 1980 Summer | |
| Elena Georgescu | Rowing | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Nicolae Georgescu | Football | 1964 Summer | |
| Ramiro Georgescu | Water polo | 2012 Summer | |
| Victor Georgescu | Road cycling | 1952 Summer | |
| Victoria Georgescu | Volleyball | 1980 Summer | |
| Vlad Georgescu | Water polo | 2024 Summer | |
| Pierre Georget | France | Track cycling | 1936 Summer | |
| Pfeiffer Georgi | Great Britain | Road cycling | 2024 Summer | |
| Georgios Georgiadis | Greece | Athletics | 1972 Summer | |
| Ioannis Georgiadis | Fencing | 1896 Summer, 1924 Summer | |
| Biser Georgiev | Bulgaria | Water polo | 1980 Summer | |
| Biser Georgiev | Wrestling | 1996 Summer | |
| Boris Georgiev | Boxing | 2004 Summer, 2008 Summer | |
| Deyan Georgiev | Canoe sprint | 2008 Summer | |
| Dimitar Georgiev | Sailing | 1980 Summer | |
| Galin Georgiev | Athletics | 1992 Summer, 1996 Summer | |
| Georgi Georgiev | Judo | 1976 Summer | |
| Georgi Georgiev | Rowing | 1976 Summer, 1980 Summer | |
| Georgi Georgiev | Athletics | 1988 Summer | |
| Georgi Georgiev | Judo | 2000 Summer, 2004 Summer | |
| Georgi Georgiev | Alpine skiing | 2014 Winter | |
| Ilia Georgiev | Wrestling | 1988 Summer | |
| Iliya Georgiev | Basketball | 1952 Summer | |
| Ivaylo Georgiev | Football | 1968 Summer | |
| Kiril Georgiev | Weightlifting | 1960 Summer | |
| Kiril Georgiev | Track cycling | 1992 Summer | |
| Konstantin Georgiev | Basketball | 1952 Summer | |
| Mikhail Georgiev | Road cycling | 1924 Summer | |
| Mladen Georgiev | Wrestling | 1964 Summer | |
| Nikolay Georgiev | Canoe sprint | 1992 Summer | |
| Petar Georgiev | Road cycling | 1952 Summer | |
| Petar Georgiev | Swimming | 1976 Summer | |
| Petar Georgiev | Diving | 1980 Summer | |
| Petar Georgiev | Artistic gymnastics | 1988 Summer | |
| Prodan Georgiev | Track cycling | 1924 Summer | |
| Simeon Georgiev | Boxing | 1968 Summer | |
| Stefan Georgiev | Swimming | 1976 Summer | |
| Stefan Georgiev | Alpine skiing | 1998 Winter, 2002 Winter, 2006 Winter, 2010 Winter | |
| Anka Georgieva | Rowing | 1980 Summer | |
| Daniela Georgieva | Athletics | 2000 Summer | |
| Elena Georgieva | Artistic gymnastics | 1972 Summer | |
| Gabriela Georgieva | Swimming | 2024 Summer | |
| Greta Georgieva | Rowing | 1988 Summer | |
| Hristina Georgieva | Athletics | 2000 Summer, 2004 Summer | |
| Ivana Georgieva | Fencing | 1996 Summer | |
| Kapka Georgieva | Rowing | 1976 Summer | |
| Magdalena Georgieva | 1988 Summer | |
| Maya Georgieva | Volleyball | 1980 Summer | |
| Nadezhda Georgieva | Athletics | 1988 Summer | |
| Radoslava Georgieva | Diving | 1996 Summer | |
| Rosa Georgieva | Canoe sprint | 1976 Summer | |
| Stanka Georgieva | Rowing | 1976 Summer, 1980 Summer | |
| Tanya Georgieva | Canoe sprint | 1992 Summer | |
| Valentina Georgieva | Artistic gymnastics | 2024 Summer | |
| Yoana Georgieva [ Wikidata ] | Canoe sprint | 2024 Summer | |
| Zlatka Georgieva | Athletics | 1996 Summer | |
| Marina Georgieva-Nikolova | Short track speed skating | 2002 Winter, 2010 Winter | |
| Blagoja Georgievski | Yugoslavia | Basketball | 1972 Summer, 1976 Summer | |
| Dejan Georgievski | North Macedonia | Taekwondo | 2020 Summer | |
| Georginho | Brazil | Basketball | 2024 Summer | |
| Eleni Georgiou | Greece | Artistic swimming | 2004 Summer | |
| Lakis Georgiou | Shooting | 1972 Summer | |
| Marios Georgiou | Cyprus | Artistic gymnastics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Platon Georgitsis | Greece | Shooting | 1960 Summer | |
| Anastasios Georgopoulos [ Wikidata ] | Tug of war | 1904 Summer | |
| Nikolaos Georgopoulos | Athletics | 1960 Summer | |
| Antonios Georgoulis | Wrestling | 1952 Summer, 1956 Summer | |
| Stelios Georgousopoulos | Sailing | 1984 Summer, 1988 Summer | |
| André Geourjon | France | Biathlon | 1980 Winter | |
| Geovanni | Brazil | Football | 2000 Summer | |
| Denis Geppert | Germany | Luge | 2002 Winter | |
| Eugeniusz Geppert | Poland | Art competitions | 1932 Summer | |
| Imre Géra | Hungary | Road cycling | 1968 Summer, 1972 Summer | |
| Dianne Gerace | Canada | Athletics | 1964 Summer | |
| Andrei Gerachtchenko | Belarus | Shooting | 2008 Summer | |
| Simon Gerada | Australia | Table tennis | 2000 Summer | |
| Mohammadali Geraei | Iran | Wrestling | 2020 Summer | |
| Mohammad Reza Geraei | 2020 Summer | |
| Agnes Geraghty | United States | Swimming | 1924 Summer, 1928 Summer | |
| Kelly Geraghty | Australia | Artistic swimming | 2000 Summer | |
| Evangelos Gerakeris | Greece | Athletics | 1896 Summer | |
| José Augusto Geraldino | Dominican Republic | Judo | 1996 Summer, 2000 Summer | |
| Vicbart Geraldino | 2000 Summer, 2004 Summer | |
| João Geraldo | Portugal | Table tennis | 2024 Summer | |
| Zé Geraldo | Brazil | Basketball | 1968 Summer, 1972 Summer | |
| Aaron Geramipoor | Iran | 2020 Summer | |
| Gerry Geran | United States | Ice hockey | 1920 Summer | |
| Andrés Gerard Jr. | Mexico | Sailing | 1968 Summer | |
| Andrés Gerard Sr. | 1964 Summer | |
| Antoine Gérard | France | Nordic combined | 2018 Winter, 2022 Winter | |
| Esteban Gerard | Mexico | Sailing | 1968 Summer, 1972 Summer | |
| Hélène Gérard [ Wikidata ] | Belgium | Art competitions | 1932 Summer | |
| Marcos Gerard | Mexico | Sailing | 1968 Summer | |
| Ned Gerard | Virgin Islands | Shooting | 2008 Summer | |
| Raymond Gérard | Belgium | Basketball | 1936 Summer | |
| Red Gerard | United States | Snowboarding | 2018 Winter, 2022 Winter | |
| Vincent Gérard | France | Handball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Giulio Gerardi | Italy | Cross country skiing | 1936 Winter | |
| Sylvia Gerasch | Germany | Swimming | 2000 Summer | |
| Fatema Hameed Gerashi | Bahrain | 2000 Summer | |
| Dmitrij Gerasimenko | Serbia | Judo | 2012 Summer | |
| Irina Gerasimenok | Russia | Shooting | 1996 Summer | |
| Aleksandrs Gerasimjonoks | Soviet Union | 1964 Summer | |
| Anna Gerasimou | Greece | Tennis | 2008 Summer | |
| Alexander Gerasimov | Soviet Union | Ice hockey | 1984 Winter | |
| Aleksandr Gerasimov | Russia | Volleyball | 2000 Summer | |
| Egor Gerasimov | Belarus | Tennis | 2020 Summer | |
| Kiril Gerasimov | Bulgaria | Ice hockey | 1976 Winter | |
| Pavel Gerasimov | Russia | Athletics | 2000 Summer, 2004 Summer | |
| Elena Gerasimova | Russian Olympic Committee | Artistic gymnastics | 2020 Summer | |
| Irina Gerasimova | Soviet Union | Swimming | 1980 Summer | |
| Valentina Gerasimova | Athletics | 1976 Summer | |
| Lubomir Geraskov | Bulgaria | Artistic gymnastics | 1988 Summer | |
| Kirill Gerassimenko | Kazakhstan | Table tennis | 2016 Summer, 2020 Summer, 2024 Summer | |
| Jean Gérault | France | Athletics | 1928 Summer | |
| Vida Gerbec | Yugoslavia | Artistic gymnastics | 1948 Summer | |
| Askerbii Gerbekov | Bahrain | Judo | 2024 Summer | |
| Bruno Gerber | Switzerland | Bobsleigh | 1992 Winter | |
| Carl von Gerber | Sweden | Canoe sprint | 1960 Summer, 1964 Summer | |
| Karina Gerber | South Africa | Modern pentathlon | 2000 Summer | |
| Martin Gerber | Switzerland | Ice hockey | 2002 Winter, 2006 Winter | |
| Oskar Gerber | Athletics | 1948 Summer | |
| Peter Gerber | Sailing | 1972 Summer | |
| Roger Gerber | France | Weightlifting | 1956 Summer, 1960 Summer | |
| Rolf Gerber | Switzerland | Bobsleigh | 1956 Winter | |
| Sandra Daniela Gerber | Snowboarding | 2014 Winter | |
| Willy Gerber | Equestrian eventing | 1928 Summer | |
| Yanah Gerber | South Africa | Water polo | 2020 Summer | |
| Giuseppe Gerbi | Italy | Athletics | 1980 Summer | |
| Yarden Gerbi | Israel | Judo | 2016 Summer | |
| Jan Gerbich | Poland | Boxing | 1924 Summer | |
| Thierry Gerbier | France | Biathlon | 1988 Winter, 1992 Winter | |
| Klaus Gerbig | Germany | Athletics | 1960 Summer | |
| Pieter Gerbrands | Netherlands | 1928 Summer | |
| Marie Gerbron | Great Britain | Handball | 2012 Summer | |
| Sava Gerchev | Bulgaria | Track cycling | 1936 Summer | |
| Yanislav Gerchev | Judo | 2016 Summer, 2020 Summer | |
| David Gerchik [ Wikidata ] | Israel | Swimming | 2024 Summer | |
| Balázs Gercsák | Hungary | 2004 Summer, 2008 Summer | |
| Csaba Gercsák | Marathon swimming | 2008 Summer, 2012 Summer | |
| Szabina Gercsák | Judo | 2024 Summer | |
| Willi Gerdau | Germany | Football | 1956 Summer | |
| Oszkár Gerde | Hungary | Fencing | 1908 Summer, 1912 Summer | |
| Alfred Gerdes | Germany | Field hockey | 1936 Summer | |
| Ed Gerdes | Netherlands | Art competitions | 1924 Summer, 1928 Summer, 1936 Summer | |
| Friedrich Gerdes | Germany | Athletics | 1936 Summer | |
| Roswitha Gerdes | West Germany | 1984 Summer | |
| Marcel Gerdil | France | 1952 Summer | |
| Fritz Gerdsmeier | West Germany | Wrestling | 1984 Summer, 1988 Summer | |
| Dimitar Gerdzhikov | Bulgaria | Biathlon | 2018 Winter, 2022 Winter | |
| Olga Gere | Yugoslavia | Athletics | 1960 Summer, 1964 Summer | |
| Roland Gerebics | Hungary | Shooting | 2000 Summer, 2008 Summer | |
| Julie Gerecht | France | Sailing | 2008 Summer | |
| Georges Gereidi | Lebanon | Alpine skiing, Cross country skiing | 1956 Winter | |
| Pär Gerell | Sweden | Table tennis | 2008 Summer, 2012 Summer, 2016 Summer | |
| Geremew Demboba | Ethiopia | Road cycling | 1956 Summer, 1960 Summer | |
| Geremi | Cameroon | Football | 2000 Summer | |
| Conceição Geremias | Brazil | Athletics | 1980 Summer, 1984 Summer, 1988 Summer | |
| Carlos Gerena | Puerto Rico | Boxing | 1992 Summer | |
| Diane Gerencser | Italy | Figure skating | 1998 Winter | |
| György Gerendás | Hungary | Water polo | 1976 Summer, 1980 Summer | |
| Howard Gereo | Papua New Guinea | Boxing | 1996 Summer | |
| Megan Gerety | United States | Alpine skiing | 1994 Winter | |
| Aladár Gerevich | Hungary | Fencing | 1932 Summer, 1936 Summer, 1948 Summer, 1952 Summer, 1956 Summer, 1960 Summer | |
| Pál Gerevich | 1972 Summer, 1980 Summer | |
| Sveva Gerevini | Italy | Athletics | 2024 Summer | |
| Marisa Gerez | Argentina | Football | 2008 Summer | |
| Annemarie Gerg | Germany | Alpine skiing | 2002 Winter, 2006 Winter | |
| Hilde Gerg | 1994 Winter, 1998 Winter, 2002 Winter | |
| Evgeniy Gerganov | Bulgaria | Road cycling | 2008 Summer | |
| András Gergely | Hungary | Ice hockey | 1936 Winter | |
| István Gergely | Slovakia, Hungary | Water polo | 2000 Summer, 2004 Summer, 2008 Summer | |
| László Gergely | Hungary | Ice hockey | 1936 Winter | |
| Tibor Gergely | Art competitions | 1928 Summer | |
| Michaela Gerg-Leitner | West Germany, Germany | Alpine skiing | 1984 Winter, 1988 Winter, 1992 Winter, 1994 Winter | |
| Nikolay Gergov | Bulgaria | Wrestling | 2004 Summer, 2008 Summer | |
| Friedrich Gerhard | Germany | Equestrian dressage | 1936 Summer | |
| Anneliese Gerhards | Germany, West Germany | Athletics | 1960 Summer, 1964 Summer, 1972 Summer | |
| Gilberto Gerhardt | Brazil | Rowing | 1976 Summer | |
| Hans-Jürgen Gerhardt | East Germany | Bobsleigh | 1980 Winter | |
| Jim Gerhardt | United States | Athletics | 1952 Summer | |
| Paul Gerhardt | Germany | 1928 Summer | |
| Peter Clarence Gerhardt | United States | 1912 Summer | |
| Bob Gerhardt | Rowing | 1924 Summer | |
| Janet Gerhauser | Figure skating | 1952 Winter | |
| Andrija Gerić | Serbia and Montenegro, Serbia | Volleyball | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Hermann Gericke | Switzerland | Swimming | 1952 Summer | |
| Lothar Gericke | East Germany | 1968 Summer | |
| César Gérico | Argentina | Sailing | 1924 Summer | |
| Peter Gerig | Switzerland | Biathlon | 1964 Winter | |
| Evald Gering | Canada | Shooting | 1960 Summer | |
| Marco Gerini | Italy | Water polo | 1996 Summer, 2004 Summer | |
| Gilbert Gérintès | France | Rugby | 1924 Summer | |
| Harry Geris | Canada | Wrestling | 1968 Summer, 1972 Summer, 1976 Summer | |
| Andreas Geritzer | Austria | Sailing | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Arturo Gériz | Spain | Road cycling | 1988 Summer | |
| Leonie Gerken Schofield | Great Britain | Freestyle skiing | 2022 Winter | |
| Makayla Gerken Schofield | 2022 Winter | |
| Ágnes Gerlach | Hungary | Diving | 1988 Summer, 1992 Summer | |
| Ernst Gerlach [ Wikidata ] | Germany | Art competitions | 1932 Summer | |
| Ernst Gerlach | East Germany | Handball | 1980 Summer | |
| Helmut Gerlach | West Germany | Cross country skiing | 1968 Winter | |
| József Gerlach | Hungary | Diving | 1956 Summer | |
| Jürgen Gerlach | West Germany | Canoe slalom | 1972 Summer | |
| Wim Gerlach | Netherlands | Boxing | 1960 Summer, 1964 Summer | |
| Umberto Gerli | Italy | Ice hockey | 1948 Winter | |
| Irina Gerlits | Soviet Union, Unified Team | Basketball | 1988 Summer, 1992 Summer | |
| Povl Gerlow | Denmark | Shooting | 1912 Summer, 1920 Summer | |
| Rodrigo Germade | Spain | Canoe sprint | 2016 Summer, 2020 Summer, 2024 Summer | |
| Germain [ Wikidata ] | France | Track cycling | 1900 Summer | |
| Paul Germain [ Wikidata ] | Artistic gymnastics | 1900 Summer | |
| Vyacheslav German | Belarus | Road cycling | 1996 Summer | |
| Jana Germani [ Wikidata ] | Italy | Sailing | 2024 Summer | |
| Sabrina Soledad Germanier | Argentina | Volleyball | 2020 Summer | |
| Juris Ģērmanis | Latvia | Cross country skiing | 1998 Winter, 2002 Winter | |
| Markus Germann | Switzerland | Figure skating | 1964 Winter | |
| Monika Germann | Cross country skiing | 1984 Winter | |
| Vilkhelm Germanov | Bulgaria | Rowing | 1980 Summer | |
| Silviya Germanova | Basketball | 1980 Summer | |
| Svetlana Germanovich | Kazakhstan | Rowing | 2012 Summer, 2016 Summer | |
| Adrian Germanus | East Germany | Fencing | 1980 Summer, 1988 Summer | |
| Manfred Germar | Germany | Athletics | 1956 Summer, 1960 Summer | |
| Bernhard Germeshausen | East Germany | Bobsleigh | 1976 Winter, 1980 Winter | |
| Peter Germer | Wrestling | 1972 Summer | |
| Irene Germini | Italy | Rhythmic gymnastics | 1992 Summer, 1996 Summer | |
| Jean-Richard Germont | France | Shooting | 1972 Summer | |
| Maurice Germot | Tennis | 1908 Summer, 1912 Summer | |
| Anders Gernandt | Sweden | Equestrian jumping | 1956 Summer, 1960 Summer | |
| Martin Gernát | Slovakia | Ice hockey | 2022 Winter | |
| Céline van Gerner | Netherlands | Artistic gymnastics | 2012 Summer, 2016 Summer | |
| Sven Gerner-Mathisen | Norway | Sailing | 1972 Summer | |
| Alix Gerniers | Belgium | Field hockey | 2012 Summer, 2024 Summer | |
| Ferenc Gerő | Hungary | Athletics | 1924 Summer, 1928 Summer | |
| Gábor Gerő | 1936 Summer | |
| Mór Gerő | 1928 Summer | |
| Angeliki Gerolymou | Greece | Water polo | 2008 Summer | |
| Albert Geromini | Switzerland | Ice hockey | 1928 Winter | |
| Mathilde Géron | France | Sailing | 2012 Summer | |
| Vladimir Gerónimo | Angola | Basketball | 2008 Summer | |
| Dimitrios Gerontaris | Greece | Sailing | 1976 Summer | |
| Giannis Gerontas | Weightlifting | 1984 Summer | |
| Augusto Gerosa | Italy | Ice hockey | 1936 Winter | |
| Carlo Gerosa | Alpine skiing | 1988 Winter, 1992 Winter | |
| Gaston Gerosa | Switzerland | Track cycling | 1948 Summer | |
| Tiffany Géroudet | Fencing | 2012 Summer, 2016 Summer | |
| Atanas Gerov | Bulgaria | Football | 1968 Summer | |
| Rangel Gerovski | Wrestling | 1988 Summer, 1992 Summer | |
| Tess Gerrand | Australia | Rowing | 2012 Summer | |
| Simon Gerrans | Road cycling | 2008 Summer, 2012 Summer | |
| David Gerrard | New Zealand | Swimming | 1964 Summer | |
| Laura Gerraughty | United States | Athletics | 2004 Summer | |
| Tim Gerresheim | Germany, West Germany | Fencing | 1960 Summer, 1964 Summer, 1968 Summer | |
| Lenie Gerrietsen | Netherlands | Artistic gymnastics | 1948 Summer, 1952 Summer | |
| Antonie Gerrits | Track cycling | 1908 Summer | |
| Travis Gerrits | Canada | Freestyle skiing | 2014 Winter | |
| Annette Gerritsen | Netherlands | Speed skating | 2006 Winter, 2010 Winter | |
| Mees Gerritsen | Track cycling | 1960 Summer | |
| Gerry [ Wikidata ] | France | Art competitions | 1924 Summer | |
| Elmarie Gerryts | South Africa | Athletics | 2000 Summer | |
| Anette Gersch | West Germany | Alpine skiing | 1988 Winter | |
| Kerstin Gerschau | East Germany | Artistic gymnastics | 1976 Summer | |
| Hans Gerschwiler | Switzerland | Figure skating | 1948 Winter | |
| Adriana Gerši | Czech Republic | Tennis | 2000 Summer | |
| Gérson | Brazil | Football | 1960 Summer | |
| Claus Gerson | United States | Field hockey | 1948 Summer | |
| Mirco Gerson | Switzerland | Beach volleyball | 2020 Summer | |
| Sam Gerson | United States | Wrestling | 1920 Summer | |
| Ernst Gerspach | Switzerland | Athletics | 1920 Summer, 1924 Summer | |
| Georg Gerstäcker | Germany | Wrestling | 1912 Summer | |
| Detlef Gerstenberg | East Germany | Athletics | 1980 Summer | |
| Alfred Gerstenbrand | Austria | Art competitions | 1936 Summer, 1948 Summer | |
| Laurent Gerstmans | Belgium | Wrestling | 1912 Summer | |
| Helmut Gertel | West Germany | Boxing | 1984 Summer | |
| Stefan Gertel | 1984 Summer | |
| Elvire Gertosio | France | Artistic gymnastics | 1972 Summer | |
| Margrit Gertsch | Switzerland | Alpine skiing | 1960 Winter | |
| Thomas Gerull | West Germany | Fencing | 1988 Summer | |
| Witold Gerutto | Poland | Athletics | 1948 Summer | |
| Erik Gervais | Canada | Canoe sprint | 1996 Summer | |
| Jason Gervais | Athletics | 2000 Summer | |
| Pierre Gervais | France | Sailing | 1900 Summer | |
| Marius Gervasoni | Rowing | 1928 Summer | |
| Willy Gervin | Denmark | Track cycling | 1932 Summer | |
| Gervinho | Ivory Coast | Football | 2008 Summer | |
| Yseult Gervy | Belgium | Swimming | 1996 Summer, 2000 Summer | |
| Ans van Gerwen | Netherlands | Artistic gymnastics | 1972 Summer, 1976 Summer | |
| Marcel Gery | Canada | Swimming | 1992 Summer | |
| Ferdinand Gerz | Germany | Sailing | 2012 Summer, 2016 Summer | |
| Wolfgang Gerz | West Germany | 1984 Summer | |
| Yekaterina Gerzanich | Kazakhstan | Water polo | 2000 Summer | |
| Eftim Gerzilov | Bulgaria | Rowing | 1976 Summer | |
| Andrea Gesch | Germany | 1996 Summer | |
| Jürgen Geschke | East Germany | Track cycling | 1968 Summer, 1972 Summer, 1976 Summer | |
| Simon Geschke | Germany | Road cycling | 2016 Summer | |
| Holger Geschwindner | West Germany | Basketball | 1972 Summer | |
| Claudia Gesell | Germany | Athletics | 2000 Summer, 2004 Summer | |
| Eduards Gešels | Latvia | Figure skating | 1936 Winter | |
| Vanja Gesheva-Tsvetkova | Bulgaria | Canoe sprint | 1980 Summer, 1988 Summer | |
| Marian Gęsicki | Poland | Athletics | 1976 Summer | |
| Witold Gesing | Canada | Sailing | 1984 Summer | |
| Robert Gesink | Netherlands | Road cycling | 2008 Summer, 2012 Summer | |
| Giacomo Gesino | Italy | Wrestling | 1948 Summer | |
| Dariusz Gęsior | Poland | Football | 1992 Summer | |
| Morgan Gesmalla | Sudan | Athletics | 1968 Summer | |
| Abebe Gessese | Ethiopia | 1980 Summer | |
| Amaka Gessler | New Zealand | Swimming | 2012 Summer | |
| Christian Gessner | Germany | 1992 Summer | |
| Linn Gestblom | Sweden | Biathlon | 2018 Winter, 2022 Winter | |
| Sophie van Gestel | Netherlands | Beach volleyball | 2012 Summer, 2016 Summer | |
| Tiest van Gestel | Archery | 1920 Summer | |
| Álvaro Gestido | Uruguay | Football | 1928 Summer | |
| Nicolas Gestin | France | Canoe slalom | 2024 Summer | |
| Jacques Gestraut | Road cycling | 1960 Summer | |
| Marjorie Gestring | United States | Diving | 1936 Summer | |
| Juan Gesualdi | Argentina | Equestrian eventing | 1964 Summer | |
| Pasquale Gesuito | Italy | Bobsleigh | 1984 Winter, 1988 Winter, 1992 Winter, 1994 Winter | |
| Birhan Getahun | Ethiopia | Athletics | 2012 Summer | |
| Gete Wami | 1996 Summer, 2000 Summer, 2008 Summer | |
| Tigest Getent | Bahrain | 2016 Summer | |
| Venera Getova | Bulgaria | 2008 Summer | |
| František Getreuer | Czechoslovakia | Water polo | 1928 Summer | |
| Valentin Getsov | Bulgaria | Wrestling | 1992 Summer | |
| Clyde Getty | Argentina | Freestyle skiing | 2002 Winter, 2006 Winter | |
| Getúlio | Brazil | Football | 1968 Summer | |
| Ryan Getzlaf | Canada | Ice hockey | 2010 Winter, 2014 Winter | |
| Andrea Geubelle | United States | Athletics | 2016 Summer | |
| Margarita Geuer | Spain | Basketball | 1992 Summer | |
| Jacob van Geuns | Netherlands | Fencing | 1912 Summer | |
| Anouk Geurts | Belgium | Sailing | 2020 Summer, 2024 Summer | |
| Toon Geurts | Netherlands | Canoe sprint | 1960 Summer, 1964 Summer, 1968 Summer | |
| Carla Geurts | Swimming | 1996 Summer, 2000 Summer | |
| Joseph Geurts | Belgium | Road cycling | 1960 Summer | |
| Rob Geurts | Netherlands | Bobsleigh | 1994 Winter | |
| Jonas de Geus | Field hockey | 2020 Summer, 2024 Summer | |
| Max Geuter | Germany, West Germany | Fencing | 1964 Summer, 1968 Summer, 1972 Summer | |
| Loet Geutjes | Netherlands | Water polo | 1968 Summer | |
| Justin Gevaert | Belgium | Rowing | 2004 Summer | |
| Kim Gevaert | Athletics | 2004 Summer, 2008 Summer | |
| Daniel Gevargiz | Iran | Weightlifting | 1968 Summer | |
| Juliet Geverkof | Athletics | 1964 Summer | |
| Ernest Gevers | Belgium | Fencing | 1920 Summer, 1924 Summer | |
| Robert Gevers | Field hockey | 1920 Summer | |
| Willem Gevers | Netherlands | Bobsleigh | 1936 Winter | |
| Jörn Gevert | Chile | Athletics | 1952 Summer | |
| Aileen Geving | United States | Curling | 2018 Winter | |
| Artur Gevorgjan | Germany | Shooting | 1996 Summer, 2000 Summer, 2004 Summer | |
| Arayik Gevorgyan | Armenia | Wrestling | 1996 Summer, 2000 Summer, 2004 Summer | |
| Arsen Gevorgyan | Judo | 1996 Summer | |
| Artur Gevorgyan | Boxing | 1996 Summer, 2000 Summer | |
| Edgar Gevorgyan | Weightlifting | 2008 Summer | |
| Ute Geweniger | East Germany | Swimming | 1980 Summer | |
| Jesse Gey | United States | Field hockey | 2008 Summer | |
| Matthias Gey | West Germany | Fencing | 1984 Summer, 1988 Summer | |
| Fritz Geyer | Germany | Diving | 1952 Summer | |
| Manfred Geyer | East Germany | Biathlon | 1976 Winter | |
| Robert Geyer | France | Athletics | 1920 Summer | |
| Asmelash Geyesus | Ethiopia | Road cycling | 1992 Summer | |
| Édouard Geynet [ Wikidata ] | France | Shooting | 1900 Summer | |
| Grace Geyoro | Football | 2024 Summer | |
| Arnaud Geyre | Road cycling | 1956 Summer | |
| Geyse | Brazil | Football | 2020 Summer | |
| Hermina Geyser | South Africa | Athletics | 1956 Summer | |
| Rika Geyser | Rowing | 2008 Summer | |
| Hala Gezah | Libya | Athletics | 2012 Summer | |
| Addis Gezahegn | Ethiopia | 1992 Summer | |
| Gezahegne Abera | 2000 Summer | |
| Kalkidan Gezahegne | Bahrain | 2020 Summer | |
| Samvel Gezalian | Belarus, Armenia | Figure skating | 1994 Winter, 1998 Winter | |
| Amro El Geziry | Egypt, United States | Modern pentathlon | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Emad El Geziry | Egypt | 2000 Summer | |
| Omar El Geziry | 2016 Summer | |
| Ayoub Ghadfa | Spain | Boxing | 2024 Summer | |
| Ali Al-Ghadi | North Yemen | Athletics | 1984 Summer | |
| Masoud Ghadimi | Iran | Wrestling | 1988 Summer | |
| Ammaar Ghadiyali | Tanzania | Swimming | 2012 Summer | |
| Behzad Ghaedi | Iran | Boxing | 1976 Summer | |
| Farhad Ghaemi | Volleyball | 2016 Summer | |
| Ali Ghaffari | Wrestling | 1948 Summer | |
| Matt Ghaffari | United States | 1992 Summer, 1996 Summer | |
| Abdul Ghafoor | Afghanistan | Athletics | 1996 Summer | |
| Madiea Ghafoor | Netherlands | 2016 Summer | |
| Abdul Ghafar Ghafoori | Afghanistan | 1960 Summer | |
| Amir Ghafour | Iran | Volleyball | 2016 Summer, 2020 Summer | |
| Hossein Ghafourizadeh | Athletics | 1964 Summer | |
| Ishak Ghaiou [ Wikidata ] | Algeria | Wrestling | 2024 Summer | |
| Kamal Ghalayni | Lebanon | Road cycling | 1980 Summer | |
| Seifollah Ghaleb | Egypt | Shooting | 1952 Summer | |
| Pezhman Ghalehnoei | Iran | Athletics | 2016 Summer | |
| Saud Ghali [ Wikidata ] | Bahrain | Swimming | 2024 Summer | |
| Khaled Ghaloum | Kuwait | Athletics | 1980 Summer | |
| Mohamed Ghaloum | Fencing | 1984 Summer | |
| Khosro Ghamari | Iran | Road cycling | 1992 Summer | |
| Suppiah Suria Ghandi | Malaysia | Field hockey | 1992 Summer | |
| Mohamed Ghandora | Morocco | Road cycling | 1960 Summer | |
| Khaled El Ghandour | Egypt | Football | 1992 Summer | |
| Riadh Ghandri | Tunisia | Volleyball | 1996 Summer | |
| Ahmed Ghanem | Egypt | Athletics | 1984 Summer, 1988 Summer | |
| Abdel Ghani Loukil | Algeria | Handball | 1996 Summer | |
| Kalim Khawaja Ghani | Pakistan | Athletics | 1956 Summer | |
| Sajjad Ghanim [ Wikidata ] | Iraq | Judo | 2024 Summer | |
| Rachid Ghanmouni | Morocco | Athletics | 2004 Summer | |
| Khalid Al-Ghannam | Saudi Arabia | Football | 2020 Summer | |
| Michel Ghaoui | Lebanon | Boxing | 1948 Summer | |
| Ashraf El-Gharably | Egypt | Wrestling | 2004 Summer, 2008 Summer, 2012 Summer | |
| Bassel El-Gharbawy | Judo | 1996 Summer, 2000 Summer, 2004 Summer | |
| Ali Gharbi | Tunisia | Boxing | 1972 Summer | |
| Ali Gharbi | Swimming | 1976 Summer | |
| Hedi Gharbi | Sailing | 2016 Summer | |
| Mahmoud Gharbi | Handball | 2012 Summer | |
| Mehdi Gharbi | Sailing | 2020 Summer | |
| Senda Gharbi | Swimming | 1988 Summer | |
| Samir Gharbo | Egypt | Water polo | 1948 Summer, 1952 Summer | |
| Abdulrahman Ghareeb | Saudi Arabia | Football | 2020 Summer | |
| Tareq Al-Ghareeb | Kuwait | Judo | 1984 Summer | |
| Fethi Ghariani | Tunisia | Volleyball | 1988 Summer | |
| Jaouad Gharib | Morocco | Athletics | 2004 Summer, 2008 Summer | |
| Shawky Gharieb | Egypt | Football | 1984 Summer | |
| Joseph Ghartey | Ghana | 1972 Summer | |
| Mohamed Ibrahim Gharzai | Afghanistan | 1948 Summer | |
| Faycal Gharzouli | Algeria | Volleyball | 1992 Summer | |
| Komeil Ghasemi | Iran | Wrestling | 2012 Summer, 2016 Summer | |
| Reza Ghasemi | Athletics | 2012 Summer, 2016 Summer | |
| Amin Ghasemipour | Boxing | 2012 Summer | |
| Ebrahim Ghasempour | Football | 1976 Summer | |
| Ruqaya Al-Ghasra | Bahrain | Athletics | 2004 Summer, 2008 Summer | |
| Gholamreza Ghassab | Iran | Wrestling | 1976 Summer | |
| Ismael Mahmoud Ghassab | Jordan | Athletics | 1984 Summer | |
| Wael Ghassan | Qatar | Swimming | 2000 Summer | |
| Poulomi Ghatak | India | Table tennis | 2000 Summer | |
| Faten Ghattas | Tunisia | Swimming | 1984 Summer | |
| Majd Eddin Ghazal | Syria | Athletics | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Omar Ahmed El Ghazaly | Egypt | 2004 Summer, 2008 Summer, 2012 Summer | |
| Armen Ghazaryan | Armenia | Weightlifting | 2004 Summer | |
| Arsen Ghazaryan [ Wikidata ] | Road cycling | 1996 Summer | |
| Marine Ghazaryan | Athletics | 2004 Summer | |
| Mekhak Ghazaryan | Soviet Union, Armenia | Boxing | 1988 Summer, 1996 Summer | |
| Ben Assou El Ghazi | Morocco | Athletics | 1964 Summer | |
| Shah Ghazi | Pakistan | Swimming | 1956 Summer | |
| Maouhoub Ghazouani | Morocco | Football | 1972 Summer | |
| Mehdi El Ghazouani | Athletics | 2000 Summer | |
| Houshang Ghazvini | Iran | Shooting | 1976 Summer | |
| Tamim Ghazy [ Wikidata ] | Egypt | Fencing | 2008 Summer | |
| Yohanes Ghebregergis | Eritrea | Athletics | 2020 Summer | |
| Amanuel Ghebreigzabhier | Road cycling | 2020 Summer | |
| Weynay Ghebresilasie | Athletics | 2012 Summer | |
| Ghirmay Ghebreslassie | 2016 Summer | |
| Fisihasion Ghebreyesus | Ethiopia | Road cycling | 1964 Summer, 1968 Summer, 1972 Summer | |
| Bruno Ghedina | Italy | Ice hockey | 1964 Winter | |
| Giuseppe Ghedina | Cross country skiing | 1924 Winter | |
| Guerrino Ghedina | Bobsleigh | 1984 Winter | |
| Guido Ghedina | Alpine skiing | 1956 Winter | |
| Kristian Ghedina | 1992 Winter, 1994 Winter, 1998 Winter, 2002 Winter, 2006 Winter | |
| Mario Ghedina | Art competitions | 1948 Summer | |
| Richard Gheel | Ireland | Swimming | 1988 Summer | |
| Louis Van Gheem | Belgium | Water polo | 1928 Summer | |
| Justine Ghekiere | Road cycling | 2024 Summer | |
| Bianca Ghelber | Romania | Athletics | 2008 Summer, 2012 Summer, 2020 Summer, 2024 Summer | |
| Parviz Ghelichkhani | Iran | Football | 1964 Summer, 1972 Summer, 1976 Summer | |
| Mario Ghella | Italy | Track cycling | 1948 Summer | |
| Frank Ghent | Ireland | Football | 1924 Summer | |
| Andrei Gheorghe | Guatemala | Modern pentathlon | 2012 Summer | |
| Cornel Gheorghe | Romania | Figure skating | 1994 Winter, 1998 Winter | |
| Dumitru Gheorghe | Wrestling | 1956 Summer, 1960 Summer | |
| Ion Gheorghe | Football | 2020 Summer | |
| Ionuț Gheorghe | Boxing | 2004 Summer, 2008 Summer | |
| Marian Gheorghe | Modern pentathlon | 1992 Summer | |
| Marin Gheorghe | Rowing | 1988 Summer, 1992 Summer, 1996 Summer | |
| Valentin Gheorghe | Football | 2020 Summer | |
| Cătălina Gheorghițoaia | Fencing | 2004 Summer | |
| Cătălina Gheorghiu | Athletics | 1996 Summer | |
| Constantin Gheorghiu | Boxing | 1960 Summer | |
| Dan Gheorghiu | Fencing | 1928 Summer | |
| Ioan Gheorghiu | Ice hockey | 1968 Winter, 1976 Winter | |
| Mihaela Gheorghiu | Athletics | 1996 Summer | |
| Mircea Gheorghiu | Artistic gymnastics | 1972 Summer | |
| Dumitru Gheorghiu | Bobsleigh | 1936 Winter | |
| Alina Gherasim | Athletics | 2000 Summer | |
| Rabah Gherbi | Algeria | Handball | 1996 Summer | |
| Ioan Gherghel | Romania | Swimming | 2000 Summer, 2004 Summer, 2008 Summer | |
| Vasily Gherghy | Moldova | Biathlon | 1994 Winter | |
| Magdy Gheriani | Egypt | Artistic gymnastics | 1952 Summer | |
| Leo Ghering | Netherlands | Football | 1928 Summer | |
| Marius Gherman | Romania | Artistic gymnastics | 1988 Summer, 1992 Summer | |
| Simona Gherman | Fencing | 2012 Summer, 2016 Summer | |
| Mohammed Ghermati | France | Athletics | 1924 Summer | |
| Agostino Ghesini | Italy | 1984 Summer | |
| Régis Ghesquière | Belgium | 1972 Summer, 1976 Summer | |
| Chaker Ghezal | Tunisia | Volleyball | 2004 Summer | |
| Khaled Ghezzawi | Libya | Swimming | 2004 Summer | |
| Ivo Ghezze | Italy | Ice hockey | 1964 Winter | |
| Luca Ghezzi | Rowing | 2000 Summer, 2004 Summer | |
| Antonio Ghiardello | 1932 Summer, 1936 Summer | |
| Morteza Ghiasi | Iran | Wrestling | 2020 Summer | |
| Teymour Ghiasi | Athletics | 1972 Summer, 1976 Summer | |
| Sergio Ghiatto | Italy | Rowing | 1952 Summer | |
| Alexandru Ghiban | Romania | Water polo | 2012 Summer | |
| Alberto Ghibellini | Italy | 1996 Summer, 2000 Summer | |
| Alessandro Ghibellini | 1968 Summer, 1972 Summer, 1976 Summer | |
| Gianni Ghidini | Road cycling | 1952 Summer | |
| Alberto Ghidoni | Alpine skiing | 1984 Winter | |
| Alfredo Ghierra | Uruguay | Football | 1924 Summer | |
| Romualdo Ghiglione [ Wikidata ] | Italy | Artistic gymnastics | 1920 Summer | |
| Amalia Ghigoarță | Romania | 2024 Summer | |
| Alberto Ghilardi | Italy | Track cycling | 1932 Summer | |
| Rebecca Ghilardi | Figure skating | 2022 Winter | |
| D. L. Ghilchik | Great Britain | Art competitions | 1928 Summer, 1932 Summer | |
| Alla Ghilenko | Moldova | Biathlon | 2022 Winter | |
| Davide Ghiotto | Italy | Speed skating | 2018 Winter, 2022 Winter | |
| Gheorghe Ghipu | Romania | Athletics | 1972 Summer, 1976 Summer | |
| Aldo Ghira | Italy | Water polo | 1948 Summer | |
| Giovanni Ghiselli | Athletics | 1956 Summer | |
| Arnaud Ghislain | Belgium | 2008 Summer | |
| Nicolae Ghiță | Romania | Wrestling | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Ștefan Ghiță | Alpine skiing | 1952 Winter | |
| Virgil Ghiță | Football | 2020 Summer | |
| Vasile Ghițescu | Shooting | 1924 Summer | |
| Toma Ghițulescu | Bobsleigh | 1928 Winter | |
| Andrea Ghiurghi | Italy | Beach volleyball | 1996 Summer | |
| Omar Ghizlat | Morocco | Athletics | 1968 Summer, 1972 Summer | |
| Mira Ghniem | Jordan | Swimming | 1996 Summer | |
| Kaies Ghodhbane | Tunisia | Football | 1996 Summer | |
| A. B. Ghogale [ Wikidata ] | India | Art competitions | 1948 Summer | |
| Adel Gholami | Iran | Volleyball | 2016 Summer | |
| Kazem Gholami | Wrestling | 1992 Summer | |
| Masoud Gholami | Volleyball | 2020 Summer | |
| Amir Reza Ghomi | Judo | 1996 Summer | |
| Hossein Ghomi | 2008 Summer | |
| Antonio Ghomsi | Cameroon | Football | 2008 Summer | |
| Johan Ghoos | Belgium | Rowing | 1976 Summer | |
| Javad Ghorab | Iran | Football | 1972 Summer | |
| Mehdi Ghorbani | Boxing | 2008 Summer | |
| Mohammad Ghorbani | Wrestling | 1968 Summer, 1972 Summer | |
| Sujay Ghorpade | India | Table tennis | 1988 Summer, 1992 Summer | |
| Nilima Ghose | Athletics | 1952 Summer | |
| Mohon Lal Ghosh | Weightlifting | 1964 Summer, 1968 Summer | |
| Shanta Ghosh | Germany | Athletics | 2000 Summer | |
| Soumyajit Ghosh | India | Table tennis | 2012 Summer, 2016 Summer | |
| Yahya Al-Ghotany | Refugee Olympic Team | Taekwondo | 2024 Summer | |
| Hatem Ghoula | Tunisia | Athletics | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Ali El Ghrari | Libya | Archery | 2016 Summer | |
| Abdullah Al-Ghrbi | North Yemen | Wrestling | 1988 Summer | |
| Mohamed Ouamar Ghrib | Algeria | Football | 1980 Summer | |
| Habiba Ghribi | Tunisia | Athletics | 2008 Summer, 2012 Summer, 2016 Summer | |
| Ghadir Ghrouf | Palestine | 2008 Summer | |
| Abdullah Sabt Ghulam | United Arab Emirates | 1992 Summer | |
| Rabani Ghulam [ Wikidata ] | Afghanistan | Boxing | 1980 Summer | |
| Mokhtar Ghyaza | Tunisia | Basketball | 2012 Summer | |
| Robbe Ghys | Belgium | Track cycling | 2020 Summer | |
| Félix Ghysels [ Wikidata ] | France | Artistic gymnastics | 1900 Summer | |
| Oscar Giacché | Argentina | Track cycling | 1948 Summer, 1952 Summer | |
| Serge Giacchini | France | Bobsleigh | 1956 Winter | |
| Olivia Giaccio | United States | Freestyle skiing | 2022 Winter | |
| Bruno Giacconi | Italy | Shooting | 1936 Summer | |
| Jean-Paul Giachino | France | Biathlon | 1988 Winter | |
| Michal Giacko | Slovakia | Nordic combined | 1994 Winter | |
| Tommaso Giacomel | Italy | Biathlon | 2022 Winter | |
| Francesco Giacomelli | Nordic combined, Ski jumping | 1976 Winter | |
| Flavio de Giacomi | Argentina | Field hockey | 1972 Summer, 1976 Summer | |
| Gianni Giacomini | Italy | Road cycling | 1980 Summer | |
| Giuseppe Giaccone | Football | 1920 Summer | |
| Andrea Giaconi | Athletics | 2000 Summer | |
| Massimo Giacoppo | Water polo | 2012 Summer | |
| Samuel Giacosa | Argentina | Athletics | 1932 Summer | |
| Cristina Giai Pron | Italy | Canoe slalom | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Maria Clara Giai Pron | 2012 Summer | |
| Katerina Giakoumidou | Greece | Sailing | 2004 Summer | |
| André Giamarchi | France | Football | 1960 Summer | |
| Valerio Giambalvo | Italy | Swimming | 1988 Summer | |
| Miranda Giambelli | Australia | Judo | 2016 Summer | |
| Jason Giambi | United States | Baseball | 1992 Summer | |
| Mario Giambielli | Italy | Weightlifting | 1924 Summer | |
| Domenico Giambonini | Switzerland | Shooting | 1920 Summer | |
| Diletta Giampiccolo | Italy | Wrestling | 2004 Summer | |
| Parkash Gian | India | 1960 Summer | |
| Tommaso Gianazza | Italy | Water polo | 2024 Summer | |
| Cathy Giancaspro | Canada | Artistic gymnastics | 1988 Summer | |
| Sandra Giancola | Argentina | Fencing | 1984 Summer, 1992 Summer | |
| Silvana Giancola | 1984 Summer | |
| Pedro Gianella | Peru | Shooting | 1968 Summer | |
| Lautaro Giannetti | Argentina | Football | 2016 Summer | |
| Mauro Gianetti | Switzerland | Road cycling | 2000 Summer | |
| Andrea Giani | Italy | Volleyball | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Dario Giani | Rowing | 1964 Summer | |
| Gastón Giani | Argentina | Volleyball | 2004 Summer | |
| Ito Giani | Italy | Athletics | 1964 Summer | |
| Louis Giani | United States | Wrestling | 1960 Summer | |
| Charilaos Giannakas | Greece | Athletics | 1904 Summer | |
| Panagiotis Giannakis | Basketball | 1996 Summer | |
| Spyridon Giannaros | Rowing | 2016 Summer | |
| Pasquale Giannattasio | Italy | Athletics | 1964 Summer | |
| Georgios Giannelis | Greece | 2000 Summer | |
| Simone Giannelli | Italy | Volleyball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Jorge Giannini | Argentina | Field hockey | 1968 Summer | |
| Spyridon Gianniotis | Greece | Swimming, Marathon swimming | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Salvatore Giannone | Italy | Athletics | 1960 Summer | |
| Athanasios Giannopoulos | Greece | Boxing | 1972 Summer | |
| Kyriakos Giannopoulos | Water polo | 1980 Summer, 1984 Summer, 1988 Summer, 1992 Summer | |
| Stavros Giannopoulos | 1984 Summer | |
| Athina Giannopoulou [ Wikidata ] | 2024 Summer | |
| Kleopas Giannou | Football | 2004 Summer | |
| Antonios Giannoulas | Boxing | 2000 Summer | |
| Ioannis Giannoulis | Swimming | 2008 Summer | |
| Ioannis Giannouris | Water polo | 1980 Summer | |
| Lavinia Gianoni | Italy | Artistic gymnastics | 1928 Summer | |
| Christian Giantomassi | Boxing | 1996 Summer | |
| Stefano Giantorno | Brazil | Rugby sevens | 2016 Summer | |
| Ioannis Giapalakis | Greece | Sailing | 1972 Summer | |
| Gianfranco Giardi | San Marino | Shooting | 1980 Summer, 1984 Summer | |
| Celso Giardini | Italy | 1980 Summer, 1984 Summer, 1988 Summer | |
| Giuliano Giardini | Alpine skiing | 1980 Winter | |
| Amandine Giardino [ Wikidata ] | France | Volleyball | 2024 Summer | |
| Theodora Giareni | Greece | Swimming | 2012 Summer | |
| Willian Giaretton | Brazil | Rowing | 2016 Summer | |
| Emilio Giassetti | Italy | Basketball | 1936 Summer | |
| Benoît Giasson | Canada | Fencing | 1988 Summer, 1992 Summer | |
| Konstantinos Giataganas | Greece | Athletics | 1948 Summer, 1952 Summer | |
| Enrique Giaverini | Chile | Boxing | 1936 Summer | |
| Luigina Giavotti | Italy | Artistic gymnastics | 1928 Summer | |
| Christina Giazitzidou | Greece | Rowing | 2012 Summer | |
| Giba | Brazil | Volleyball | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Jake Gibb | United States | Beach volleyball | 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Cerian Gibbes | Trinidad and Tobago | Swimming | 1996 Summer | |
| Paul Gibbins | Great Britain | Biathlon, Cross country skiing | 1976 Winter, 1980 Winter | |
| Arthur Gibbon | Road cycling | 1912 Summer | |
| Roger Gibbon | Trinidad and Tobago | Track cycling | 1964 Summer, 1968 Summer | |
| Craig Gibbons | Great Britain | Swimming | 2012 Summer | |
| Gemma Gibbons | Judo | 2012 Summer | |
| John Gibbons | New Zealand | Rowing | 1964 Summer, 1968 Summer | |
| O'Brian Gibbons | Canada | Athletics | 1996 Summer | |
| Paul Gibbons | New Zealand | 1992 Summer | |
| Ryan Gibbons | South Africa | Road cycling | 2020 Summer, 2024 Summer | |
| Sarah Gibbins | Great Britain | Shooting | 2004 Summer | |
| Tex Gibbons | United States | Basketball | 1936 Summer | |
| Dora Gibbs | Great Britain | Swimming | 1928 Summer | |
| George Fort Gibbs | United States | Art competitions | 1932 Summer | |
| Josephine Gibbs | Great Britain | Alpine skiing | 1960 Winter | |
| Lauren Gibbs | United States | Bobsleigh | 2018 Winter | |
| Rhanishka Gibbs [ Wikidata ] | Bahamas | Swimming | 2024 Summer | |
| Riley Gibbs | United States | Sailing | 2020 Summer | |
| Rory Gibbs | Great Britain | Rowing | 2020 Summer, 2024 Summer | |
| Bob Gibe | United States | Swimming | 1948 Summer | |
| Frans Gibens | Belgium | Artistic gymnastics | 1920 Summer | |
| Francisco Gibert | Spain | Water polo | 1920 Summer, 1924 Summer | |
| Luis Gibert | 1920 Summer, 1924 Summer | |
| Paul Gibiard | France | Artistic gymnastics | 1900 Summer | |
| István Gibicsár | Hungary | Athletics | 1980 Summer | |
| Giuseppe Gibilisco | Italy | 2000 Summer, 2004 Summer, 2008 Summer | |
| Chantal Gibney | Ireland | Swimming | 2000 Summer | |
| Edmond Gibney | Equestrian eventing | 2004 Summer | |
| Adam Gibson | Australia | Basketball | 2012 Summer | |
| Alison Gibson | United States | Diving | 2020 Summer, 2024 Summer | |
| Allison Gibson | Puerto Rico | Basketball | 2020 Summer, 2024 Summer | |
| Anne Gibson | Great Britain | Badminton | 1996 Summer | |
| Bryan Gibson | Canada | Boxing | 1976 Summer | |
| Cameron Gibson | New Zealand | Swimming | 2004 Summer, 2008 Summer | |
| Carol Gibson | Canada | Cross country skiing | 1988 Winter | |
| Catherine Gibson | Great Britain | Swimming | 1948 Summer | |
| Cheryl Gibson | Canada | 1976 Summer | |
| Doug Gibson | 1948 Summer | |
| Duff Gibson | Skeleton | 2002 Winter, 2006 Winter | |
| Greg Gibson | United States | Wrestling | 1984 Summer | |
| Jackie Gibson | South Africa | Athletics | 1936 Summer | |
| James Gibson | Great Britain | Swimming | 2004 Summer | |
| Jannie Gibson | Zimbabwe | Boxing | 1964 Summer | |
| Jeffery Gibson | Bahamas | Athletics | 2016 Summer | |
| Jock Gibson | Australia | Fencing | 1952 Summer | |
| Johnny Gibson | United States | Athletics | 1928 Summer | |
| Lewis Gibson | Great Britain | Figure skating | 2022 Winter | |
| Lisa Gibson | Water polo | 2012 Summer | |
| Margaret Gibson | Australia | Swimming | 1956 Summer | |
| Margaret Gibson | Zimbabwe | Rowing | 1992 Summer | |
| Michelle Gibson | United States | Equestrian dressage | 1996 Summer | |
| Neil Gibson | New Zealand | Rowing | 1988 Summer | |
| Robert Gibson | Canada | 2012 Summer, 2016 Summer | |
| Sharon Gibson | Great Britain | Athletics | 1984 Summer, 1988 Summer | |
| Sue Gibson | New Zealand | Alpine skiing | 1976 Winter | |
| Ted Gibson | Canada | Rowing | 1984 Summer | |
| Thomas Gibson | Australia | 2008 Summer, 2012 Summer | |
| Tolman Gibson | United States | Boxing | 1964 Summer | |
| W. R. Gibson [ Wikidata ] | Lacrosse | 1904 Summer | |
| William Gibson | Canada | Ice hockey | 1952 Winter | |
| Ciara Gibson-Byrne | Great Britain | Water polo | 2012 Summer | |
| Benson Gicharu | Kenya | Boxing | 2012 Summer, 2016 Summer | |
| Valentin Gichev | Bulgaria | Alpine skiing | 1984 Winter | |
| Lucille Gicquel [ Wikidata ] | France | Volleyball | 2024 Summer | |
| Solène Gicquel | Athletics | 2024 Summer | |
| Thom Gicquel | Badminton | 2020 Summer, 2024 Summer | |
| Csaba Giczy | Hungary | Canoe sprint | 1968 Summer, 1976 Summer | |
| Raymond Gid [ Wikidata ] | France | Art competitions | 1924 Summer | |
| Ahmed Khalil El-Giddawi | Egypt | Artistic gymnastics | 1948 Summer, 1952 Summer | |
| Eric Giddens | United States | Canoe slalom | 1996 Summer | |
| Rebecca Giddens | 2000 Summer, 2004 Summer | |
| Josh Giddey | Australia | Basketball | 2024 Summer | |
| Marcus Fernaldi Gideon | Indonesia | Badminton | 2020 Summer | |
| Letesenbet Gidey | Ethiopia | Athletics | 2020 Summer | |
| Borislav Gidikov | Bulgaria | Weightlifting | 1988 Summer | |
| Dirk Gidney | Canada | Rowing | 1976 Summer | |
| Herbert Gidney | United States | Athletics | 1908 Summer | |
| Teodora Gîdoiu | Romania | Rowing | 2012 Summer | |
| Mathias Gidsel | Denmark | Handball | 2020 Summer, 2024 Summer | |
| Diane Giebel | United States | Swimming | 1968 Summer | |
| Susi Giebisch | Austria | Figure skating | 1948 Winter | |
| Andrius Giedraitis | Lithuania | Basketball | 2000 Summer | |
| Tessa Giele | Netherlands | Swimming | 2024 Summer | |
| Emily Gielnik | Australia | Football | 2020 Summer | |
| Eberhard Gienger | West Germany | Artistic gymnastics | 1972 Summer, 1976 Summer | |
| Markus Gier | Switzerland | Rowing | 1996 Summer, 2000 Summer | |
| Michael Gier | 1996 Summer, 2000 Summer | |
| Bogusław Gierajewski | Poland | Athletics | 1960 Summer, 1964 Summer | |
| Łukasz Gierak | Handball | 2016 Summer | |
| Krzysztof Gierczyński | Volleyball | 2008 Summer | |
| Kristin Gierisch | Germany | Athletics | 2016 Summer, 2020 Summer | |
| Robert Giertsen | Norway | Sailing | 1920 Summer | |
| Hans-Peter Gies | East Germany | Athletics | 1972 Summer, 1976 Summer | |
| Reiner Gies | West Germany | Boxing | 1984 Summer, 1988 Summer | |
| Carmen Giese | Shooting | 1988 Summer | |
| Jocelyn von Giese | Philippines | Swimming | 1956 Summer | |
| Sandra von Giese | 1960 Summer | |
| Dieter Gieseler | Germany | Track cycling | 1960 Summer | |
| Horst Gieseler | Athletics | 1964 Summer | |
| Kurt Gieseler | Track cycling | 1956 Summer | |
| Piet Jan van der Giessen | Netherlands | Sailing | 1952 Summer | |
| Thomas Giessing | West Germany | Athletics | 1984 Summer | |
| Blaise Giezendanner | France | Alpine skiing | 2018 Winter, 2022 Winter | |
| Niels Giffey | Germany | Basketball | 2020 Summer, 2024 Summer | |
| Fred Giffin | Australia | Weightlifting | 1952 Summer | |
| Merritt Giffin | United States | Athletics | 1908 Summer | |
| Chris Gifford | Canada | Field hockey | 1988 Summer, 2000 Summer | |
| Xavier Gigandet | Switzerland | Alpine skiing | 1992 Winter | |
| Mireille Gigandet-Donders | Athletics | 1996 Summer, 2000 Summer | |
| Edmondo Gigante [ Wikidata ] | Ireland | Art competitions | 1948 Summer | |
| Sarah Gigante | Australia | Road cycling | 2020 Summer | |
| Eva Giganti | Italy | Weightlifting | 2000 Summer | |
| Albert Giger | Switzerland | Cross country skiing | 1968 Winter, 1972 Winter, 1976 Winter | |
| Daniel Giger | Fencing | 1972 Summer, 1976 Summer, 1984 Summer | |
| Sophie Giger | Artistic swimming | 2016 Summer | |
| Yasmin Giger | Athletics | 2020 Summer, 2024 Summer | |
| Ryan Giggs | Great Britain | Football | 2012 Summer | |
| Asha Gigi | Ethiopia | Athletics | 2004 Summer | |
| Heiko Gigler | Austria | Swimming | 2020 Summer, 2024 Summer | |
| Elena Gigli | Italy | Water polo | 2004 Summer, 2008 Summer, 2012 Summer | |
| Andreas Giglmayr | Austria | Triathlon | 2012 Summer | |
| André-Pierre Gignac | France | Football | 2020 Summer | |
| Ernest Gignoux | United States | Fencing | 1912 Summer, 1924 Summer | |
| Françoise Gignoux | France | Alpine skiing | 1948 Winter | |
| Marie Laure Gigon | Shooting | 2008 Summer | |
| Nathalie Giguère | Canada | Swimming | 1992 Summer | |
| Sam Giguère | Bobsleigh | 2022 Winter | |
| Juan Giha | Peru | Shooting | 1980 Summer, 1984 Summer, 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Juan Jorge Giha Sr. | 1972 Summer | |
| Álvaro Gijón | Spain | Cross country skiing | 1998 Winter | |
| Edgard Gijsen | Brazil | Rowing | 1968 Summer | |
| Nicolae Gîju | Romania | Boxing | 1968 Summer | |
| Christos Gikas | Greece | Wrestling | 2004 Summer | |
| Joseph Gikonyo | Kenya | Athletics | 1996 Summer | |
| Jessica Gil Ortiz | Colombia | Artistic gymnastics | 2012 Summer | |
| Bryan Gil | Spain | Football | 2020 Summer | |
| Federico Gil | Argentina | Shooting | 2016 Summer, 2020 Summer, 2024 Summer | |
| Hipólito Gil | Sailing | 1936 Summer | |
| Jesús Gil | Cuba | Fencing | 1968 Summer, 1972 Summer | |
| José Miguel Gil | Spain | Diving | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Laura Gil | Basketball | 2016 Summer, 2020 Summer, 2024 Summer | |
| Marcelo Gil | Argentina | Shooting | 1996 Summer | |
| Melisa Gil | 2016 Summer, 2020 Summer | |
| Óscar Gil | Spain | Football | 2020 Summer | |
| Ramón Gil | 1920 Summer | |
| Tomás Gil | Venezuela | Road cycling | 2012 Summer | |
| Tonho Gil | Brazil | Football | 1984 Summer | |
| Gil Young-ah | South Korea | Badminton | 1992 Summer, 1996 Summer | |
| Amos Gilad | Israel | Athletics | 1964 Summer | |
| Enrico Gilardi | Italy | Basketball | 1980 Summer, 1984 Summer | |
| Gianpietro Gilardi | Rowing | 1964 Summer | |
| Juan Ignacio Gilardi | Argentina | Field hockey | 2016 Summer | |
| Luigi Gilardi | Italy | Track cycling | 1920 Summer | |
| Alberto Gilardino | Football | 2004 Summer | |
| Henri Gilardoni | France | Sailing | 1900 Summer | |
| Marina Gilardoni | Switzerland | Skeleton | 2014 Winter, 2018 Winter | |
| Louis Gilavert | France | Athletics | 2020 Summer, 2024 Summer | |
| Marie-Josée Gilbeau-Ouimet | Canada | Canoe sprint | 1996 Summer, 2000 Summer | |
| Adrien Gilbert | Weightlifting | 1956 Summer | |
| Alfred Carlton Gilbert | United States | Athletics | 1908 Summer | |
| Brad Gilbert | Tennis | 1988 Summer | |
| Brian Gilbert | Great Britain | 1924 Summer | |
| Callum Gilbert | New Zealand | Canoe slalom | 2020 Summer | |
| Cindy Gilbert | United States | Athletics | 1972 Summer | |
| Craig Gilbert | Handball | 1984 Summer | |
| David DeGraaf | 1996 Summer | |
| Edicto Gilbert | Cuba | Canoe sprint | 1972 Summer | |
| Edwin Gilbert | United States | Swimming | 1948 Summer | |
| Glenroy Gilbert | Canada | Athletics, Bobsleigh | 1988 Summer, 1992 Summer, 1994 Winter, 1996 Summer, 2000 Summer | |
| Irene Gilbert | Great Britain | Swimming | 1924 Summer | |
| Jean Gilbert | Diving | 1936 Summer | |
| Jennifer Gilbert | Canada | Softball | 2020 Summer | |
| Martin Gilbert | Track cycling | 2008 Summer | |
| Philippe Gilbert | Belgium | Road cycling | 2004 Summer, 2012 Summer, 2016 Summer | |
| Rick Gilbert | United States | Diving | 1968 Summer | |
| Victor Gilbert [ Wikidata ] | Great Britain | Shooting | 1948 Summer | |
| Willy Gilbert | Norway | Sailing | 1920 Summer | |
| Marc Gilbertson | United States | Cross country skiing | 1998 Winter | |
| George Gilbody | Great Britain | Boxing | 1980 Summer | |
| Ray Gilbody | 1980 Summer | |
| Helen Gilby | Canoe sprint | 1996 Summer | |
| Allen Gilchrist | Canada | Swimming | 1948 Summer, 1952 Summer | |
| Jarrod Gilchrist | Australia | Water polo | 2016 Summer | |
| Kaleigh Gilchrist | United States | 2016 Summer, 2020 Summer, 2024 Summer | |
| Kristopher Gilchrist | Great Britain | Swimming | 2008 Summer | |
| Sandy Gilchrist | Canada | 1964 Summer, 1968 Summer | |
| Michael Gilday | Short track speed skating | 2014 Winter | |
| Rita Gildemeister | East Germany | Athletics | 1972 Summer | |
| Virginia Gilder | United States | Rowing | 1984 Summer | |
| Barbara Gilders | Diving | 1956 Summer | |
| Franjo Giler | Yugoslavia | Football | 1928 Summer | |
| Calum Giles | Great Britain | Field hockey | 1996 Summer, 2000 Summer | |
| Chelsie Giles | Judo | 2020 Summer, 2024 Summer | |
| Curt Giles | Canada | Ice hockey | 1992 Winter | |
| David Giles | Australia | Sailing | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Elliot Giles | Great Britain | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| George Giles | New Zealand | Road cycling, Track cycling | 1936 Summer | |
| John Giles | Great Britain | Athletics | 1948 Summer, 1952 Summer | |
| Maureen Giles | Australia | Swimming | 1956 Summer | |
| Peter Giles | Canada | Canoe sprint | 1996 Summer | |
| Stephen Giles | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Alain Giletti | France | Figure skating | 1952 Winter, 1956 Winter, 1960 Winter | |
| Jacek Gilewski | Poland | Archery | 1992 Summer | |
| Józef Gilewski | Boxing | 1996 Summer | |
| Ceris Gilfillan | Great Britain | Road cycling | 2000 Summer | |
| Ruth Gilfillan | Swimming | 1988 Summer | |
| Darren Gilford | Malta | Athletics | 2004 Summer | |
| Candice Gilg | France | Freestyle skiing | 1992 Winter, 1994 Winter, 1998 Winter | |
| Youri Gilg | 1992 Winter | |
| Hans Gilgen | Switzerland | Track cycling | 1928 Summer | |
| Philipp Gilgen | Swimming | 2000 Summer | |
| Charmaine Gilgeous | Antigua and Barbuda | Athletics | 1992 Summer | |
| Shai Gilgeous-Alexander | Canada | Basketball | 2024 Summer | |
| Althea Gilharry | Belize | Athletics | 1996 Summer | |
| James Gilhula | United States | Swimming | 1932 Summer | |
| Ignacio Gili | Argentina | Cycling mountain bike | 2000 Summer | |
| Agamemnon Gilis | Greece | Football | 1920 Summer | |
| Cornelia Gilissen | United States | Diving | 1936 Summer | |
| Rein Gilje | Norway | Canoe sprint | 1984 Summer | |
| James Gilkes | Guyana | Athletics | 1980 Summer | |
| Ajit Singh Gill | Singapore | Field hockey | 1956 Summer | |
| Alison Gill | Great Britain | Rowing | 1988 Summer, 1992 Summer, 1996 Summer | |
| Amrik Singh Gill | Wrestling | 1972 Summer, 1976 Summer, 1980 Summer | |
| Andrew Gill | Diving | 1972 Summer | |
| Avtar Singh Gill | Malaysia | Field hockey | 1976 Summer | |
| Cyril Gill | Great Britain | Athletics | 1928 Summer | |
| Dalbir Singh Gill | India | Road cycling, Track cycling | 1964 Summer | |
| Emery Gill | Belize | Athletics | 1992 Summer | |
| Frederick Agnew Gill | France | Polo | 1900 Summer | |
| Harpreet Gill | India | Field hockey | 1980 Summer | |
| Harry Gill | Great Britain | Artistic gymnastics | 1908 Summer | |
| Jacko Gill | New Zealand | Athletics | 2016 Summer, 2020 Summer, 2024 Summer | |
| Jagdish Gill | Canada | Field hockey | 2016 Summer | |
| Johann Gill | Austria | Weightlifting | 1924 Summer | |
| Kevin Gill | Great Britain | Shooting | 1992 Summer, 1996 Summer | |
| Kylie Gill | New Zealand | Freestyle skiing | 1998 Winter | |
| Liam Gill | Canada | Snowboarding | 2022 Winter | |
| Nicolas Gill | Judo | 1992 Summer, 1996 Summer, 2000 Summer, 2004 Summer | |
| Phoebe Gill | Great Britain | Athletics | 2024 Summer | |
| Raunaq Singh Gill | India | 1936 Summer | |
| Roger Gill | Guyana | 1996 Summer | |
| Shaun Gill | Belize | 2020 Summer, 2024 Summer | |
| Sukhbir Singh Gill | India | Field hockey | 2000 Summer | |
| Tahli Gill | Australia | Curling | 2022 Winter | |
| Peter Gillam | Great Britain | Archery | 1984 Summer | |
| James Angus Gillan | Rowing | 1908 Summer, 1912 Summer | |
| Dave Gillanders | United States | Swimming | 1960 Summer | |
| Barthélemy Gillard | Belgium | Track cycling | 1960 Summer | |
| Patrick Gillard | Field hockey | 1972 Summer | |
| Dino Gillarduzzi | Italy | Speed skating | 2002 Winter | |
| Guido Gillarduzzi | 1968 Winter | |
| Jessica Gillarduzzi | Bobsleigh | 2006 Winter, 2010 Winter | |
| Uberto Gillarduzzi | 1936 Winter, 1952 Winter | |
| Irena Gillarová | Czech Republic | Athletics | 2020 Summer | |
| Bertrand Gille | France | Handball | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Christian Gille | Germany | Canoe sprint | 2000 Summer, 2004 Summer, 2008 Summer | |
| Clas Gille | Sweden | Athletics | 1912 Summer | |
| Guillaume Gille | France | Handball | 2000 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Helmut Gille | East Germany | Equestrian eventing | 1972 Summer | |
| Sander Gillé | Belgium | Tennis | 2020 Summer, 2024 Summer | |
| Sverre Gillebo | Norway | Fencing | 1948 Summer, 1952 Summer | |
| Maurice Gillen | Luxembourg | Track cycling | 1924 Summer | |
| Alfred Gilles | Belgium | Wrestling | 1936 Summer | |
| Graham Gilles | Australia | Canoe sprint | 1976 Summer | |
| Jean-François Gilles | Belgium | Field hockey | 1968 Summer, 1972 Summer, 1976 Summer | |
| Piper Gilles | Canada | Figure skating | 2018 Winter, 2022 Winter | |
| Vanessa Gilles | Football | 2020 Summer, 2024 Summer | |
| Cravon Gillespie | United States | Athletics | 2020 Summer | |
| Lara Gillespie | Ireland | Track cycling | 2024 Summer | |
| Ross Gillespie | New Zealand | Field hockey | 1960 Summer, 1964 Summer | |
| Thomas Gillespie | Great Britain | Rowing | 1912 Summer | |
| Gillet [ Wikidata ] | France | Artistic gymnastics | 1900 Summer | |
| Anthony Gillet | Athletics | 2000 Summer | |
| Antoine Gillet | Belgium | 2012 Summer | |
| Jade Gillet [ Wikidata ] | France | Diving | 2024 Summer | |
| Léon Gillet | Boxing | 1920 Summer | |
| Naïs Gillet [ Wikidata ] | Diving | 2024 Summer | |
| Pierre Gillet | Athletics | 1952 Summer | |
| Amy Gillett | Australia | Rowing | 1996 Summer | |
| Edward Frank Gillett | Great Britain | Art competitions | 1928 Summer | |
| Nicolas Gilliard | Switzerland | Swimming | 1968 Summer | |
| Christina Gilli-Brügger | Cross country skiing | 1984 Winter, 1988 Winter | |
| David Gillick | Ireland | Athletics | 2008 Summer | |
| Louis Gilliéron | Switzerland | Field hockey | 1936 Summer | |
| Eric Gillies | Canada | Figure skating | 1976 Winter | |
| Penny Gillies | Australia | Athletics | 1972 Summer, 1980 Summer | |
| William Gillies | Hong Kong | Shooting | 1960 Summer, 1964 Summer | |
| Joseph Gilligan | Great Britain | Wrestling | 1972 Summer, 1976 Summer | |
| Walter Gillik | West Germany | Bobsleigh | 1972 Winter | |
| Joanie Gillingham | Canada | Rowing | 1984 Summer | |
| Martin Gillingham | Great Britain | Athletics | 1984 Summer | |
| Nick Gillingham | Swimming | 1988 Summer, 1992 Summer, 1996 Summer | |
| Zoe Gillings | Snowboarding | 2006 Winter, 2010 Winter, 2014 Winter, 2018 Winter | |
| Liam Gillion | New Zealand | Football | 2024 Summer | |
| Duncan Gillis | Canada | Athletics | 1912 Summer | |
| Eric Gillis | 2008 Summer, 2012 Summer, 2016 Summer | |
| Maurice Gillis | Belgium | Football | 1924 Summer | |
| Simon Gillis | United States | Athletics | 1908 Summer, 1912 Summer | |
| Lindford Gillitt | Belize | Road cycling | 1984 Summer | |
| Jonathan Gillman | Australia | Shooting | 1976 Summer | |
| Todd Gillman | Canada | Ski jumping | 1988 Winter | |
| Erwin Gillmeister | Germany | Athletics | 1936 Summer | |
| John Gillmore [ Wikidata ] | Fiji | Sailing | 1956 Summer | |
| Daniel Gillois | France | Equestrian dressage | 1936 Summer | |
| Jennifer Gillom | United States | Basketball | 1988 Summer | |
| Peter Gillon | Australia | Rowing | 1960 Summer, 1964 Summer | |
| Antoinette Gillou [ Wikidata ] | France | Tennis | 1900 Summer | |
| David Gillow | Zimbabwe | Road cycling | 1980 Summer | |
| Shara Marche | Australia | 2012 Summer | |
| Raymond Gilloz | France | Speed skating | 1956 Winter, 1960 Winter | |
| Reto Gilly | Switzerland | Luge | 1994 Winter, 1998 Winter, 2002 Winter | |
| David Gilman | United States | Canoe sprint, Luge | 1976 Summer, 1984 Summer, 1984 Winter | |
| Marian Gilman | Swimming | 1928 Summer | |
| Ralph Gilman | 1936 Summer | |
| Thomas Gilman | Wrestling | 2020 Summer | |
| Charlotte Gilmartin | Great Britain | Short track speed skating | 2014 Winter, 2018 Winter | |
| Charles Gilmore | United States | Speed skating | 1972 Winter, 1976 Winter | |
| Crystal Gilmore | Canada | Artistic gymnastics | 2000 Summer | |
| Donna Gilmore | Athletics | 1948 Summer | |
| Frederick Garfield Gilmore | United States | Boxing | 1904 Summer | |
| Matthew Gilmore | Belgium | Track cycling | 2000 Summer, 2004 Summer | |
| Rebecca Gilmore | Australia | Diving | 2000 Summer | |
| Stephanie Gilmore | Surfing | 2020 Summer | |
| William Gilmore | United States | Rowing | 1924 Summer, 1932 Summer | |
| Jim Gilmour | Great Britain | Boxing | 1920 Summer | |
| Kirsty Gilmour | Badminton | 2016 Summer, 2020 Summer, 2024 Summer | |
| Paul Gilmour | Australia | Canoe sprint | 1988 Summer | |
| Ryszard Giło | Poland | Rowing | 1972 Summer | |
| Fabien Gilot | France | Swimming | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Erin Gilreath | United States | Athletics | 2004 Summer | |
| Freddie Gilroy | Ireland | Boxing | 1956 Summer | |
| Matt Gilroy | United States | Ice hockey | 2018 Winter | |
| Roger Gilson | Luxembourg | Road cycling | 1968 Summer | |
| Héðinn Gilsson | Iceland | Handball | 1992 Summer | |
| An Gil-wan | North Korea | Football | 1976 Summer | |
| Nailya Gilyazova | Soviet Union | Fencing | 1976 Summer, 1980 Summer | |
| Gim Bo-eun | South Korea | Handball | 2020 Summer, 2024 Summer | |
| Gim Gyeong-ae | Athletics | 2008 Summer | |
| Gim So-hui | Alpine skiing | 2014 Winter, 2018 Winter, 2022 Winter | |
| Gim Sung-hee | Field hockey | 2008 Summer | |
| Gim Eun-ji | Curling | 2014 Winter | |
| Dinara Gimatova | Azerbaijan | Rhythmic gymnastics | 2008 Summer | |
| Anastasia Gimazetdinova | Uzbekistan | Figure skating | 2006 Winter, 2010 Winter | |
| Rolandas Gimbutis | Lithuania | Swimming | 2000 Summer, 2004 Summer, 2008 Summer | |
| Antonio Giménez | Argentina | Track cycling | 1952 Summer | |
| Estela Giménez | Spain | Rhythmic gymnastics | 1996 Summer | |
| Isis Giménez | Venezuela | Fencing | 2016 Summer | |
| Pablo Giménez | Paraguay | Football | 2004 Summer | |
| Vega Gimeno | Spain | 3x3 basketball | 2024 Summer | |
| Trude Gimle | Norway | Alpine skiing | 1994 Winter, 1998 Winter | |
| Laura Gimmler | Germany | Cross country skiing | 2022 Winter | |
| Aredio Gimona | Italy | Football | 1952 Summer | |
| Felice Gimondi | Road cycling | 1964 Summer | |
| Madonna Gimotea | Canada | Rhythmic gymnastics | 1992 Summer | |
| Harald Gimpel | East Germany | Canoe slalom | 1972 Summer | |
| John Gimson | Great Britain | Sailing | 2020 Summer, 2024 Summer | |
| Antonio Gin | Mexico | Boxing | 1972 Summer | |
| Gin Gang-hwan | South Korea | Athletics | 1948 Summer | |
| Emiliano Ginanneschi [ Wikidata ] | Italy | Baseball | 2000 Summer | |
| Svetlana Gincheva | Bulgaria | Rowing | 1976 Summer | |
| Nan Gindele | United States | Athletics | 1932 Summer | |
| Gervais Gindre | France | Cross country skiing | 1952 Winter | |
| Juan Gindre | Argentina | Shooting | 1956 Summer, 1960 Summer | |
| Robert Gindre | France | Cross country skiing | 1936 Winter | |
| Ahmed El-Gindy | Egypt | Boxing | 1984 Summer | |
| Ashraf Shafik Gindy | Field hockey | 1992 Summer | |
| Xantal Giné | Spain | 2016 Summer, 2020 Summer, 2024 Summer | |
| Salvador Ginel | Argentina | Football | 1960 Summer | |
| Robby Ginepri | United States | Tennis | 2008 Summer | |
| Alberto Ginés | Spain | Sport climbing | 2020 Summer, 2024 Summer | |
| José Ginés | Artistic gymnastics | 1972 Summer | |
| Vidas Ginevičius | Lithuania | Basketball | 2004 Summer | |
| Nicu Gingă | Romania | Wrestling | 1976 Summer, 1980 Summer | |
| Arthur Gingell | Great Britain | 1908 Summer | |
| Léon Gingembre [ Wikidata ] | France | Track cycling | 1900 Summer | |
| Randy Gingera | Canada | Volleyball | 1992 Summer | |
| Maxime Gingras | Freestyle skiing | 2010 Winter | |
| Nathalie Gingras | Swimming | 1984 Summer | |
| Bengt Gingsjö | Sweden | 1972 Summer, 1976 Summer | |
| Marc Gini | Switzerland | Alpine skiing | 2010 Winter | |
| Elphas Ginindza | Eswatini | Athletics | 1992 Summer | |
| Elena Ginko | Belarus | 2004 Summer, 2008 Summer | |
| Viktor Ginko | 1996 Summer, 2000 Summer | |
| Drew Ginn | Australia | Rowing | 1996 Summer, 2004 Summer, 2008 Summer, 2012 Summer | |
| Robert Ginnetti | Italy | Ice hockey | 1992 Winter | |
| Manu Ginóbili | Argentina | Basketball | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer | |
| Guillermo Martínez Ginoris | Cuba | Water polo | 1968 Summer, 1972 Summer | |
| Ivan Ginov | Bulgaria | Wrestling | 1980 Summer | |
| Matthias Ginter | Germany | Football | 2016 Summer | |
| Zygmunt Ginter | Poland | Ice hockey | 1948 Winter | |
| Anthony Sinisuka Ginting | Indonesia | Badminton | 2020 Summer, 2024 Summer | |
| James Ginty | Great Britain | Athletics | 1936 Summer | |
| Paula Ginzo | Spain | Basketball | 2024 Summer | |
| Jason Giobbi | Australia | Bobsleigh | 1998 Winter | |
| Silvio Giobellina | Switzerland | 1984 Winter | |
| Louis Giobergia | Monaco | Rowing | 1928 Summer | |
| Andrea Giocondi | Italy | Athletics | 1996 Summer | |
| Simona Gioli | Volleyball | 2008 Summer, 2012 Summer | |
| Silvio Giolito | United States | Fencing | 1948 Summer, 1952 Summer | |
| Laura Giombini | Italy | Beach volleyball | 2016 Summer | |
| Augusto Giomo | Basketball | 1960 Summer, 1964 Summer | |
| Giorgio Giomo | 1972 Summer | |
| Franco Giongo | Athletics | 1912 Summer | |
| Panagiotis Gionis | Greece | Table tennis | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Brian Gionta | United States | Ice hockey | 2006 Winter, 2018 Winter | |
| Salvatore Gionta | Italy | Water polo | 1952 Summer, 1960 Summer | |
| Claudia Giordani | Alpine skiing | 1976 Winter, 1980 Winter | |
| Gian Matteo Giordani | San Marino | 2002 Winter | |
| Víctor Giordani | Guatemala | Shooting | 1976 Summer | |
| Andrea Giordano | Argentina | Artistic gymnastics | 1992 Summer | |
| Giuseppe Giordano | Italy | Shooting | 2012 Summer, 2016 Summer | |
| Riccardo Giordano | Sailing | 1992 Summer, 2000 Summer, 2004 Summer | |
| Rossella Giordano | Athletics | 1996 Summer, 2004 Summer | |
| Jesmond Giordemaina | Malta | Wrestling | 1984 Summer, 1988 Summer | |
| Ilia Giorgadze | Georgia | Artistic gymnastics | 1996 Summer, 2000 Summer, 2004 Summer, 2008 Summer | |
| Mikheil Giorgadze | Soviet Union | Water polo | 1988 Summer | |
| Mirian Giorgadze | Georgia | Wrestling | 2000 Summer, 2004 Summer | |
| Alex Giorgetti | Italy | Water polo | 2012 Summer | |
| Franco Giorgetti | Track cycling | 1920 Summer | |
| José Giorgetti | Argentina | Boxing | 1956 Summer | |
| Alex Giorgi | Italy | Alpine skiing | 1980 Winter, 1984 Winter | |
| Camila Giorgi | Tennis | 2020 Summer | |
| Carmine Giorgi | Brazil | Athletics | 1932 Summer | |
| Eleonora Giorgi | Italy | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Francesco Giorgi | Judo | 1996 Summer | |
| Giordano De Giorgi | Wrestling | 1952 Summer | |
| Virginia Giorgi | Artistic gymnastics | 1928 Summer | |
| Antonio Giorgio | Argentina | Rowing | 1936 Summer | |
| Mario Gios | Italy | Speed skating | 1960 Winter | |
| Antonios Gioulbas | Greece | Swimming | 2004 Summer | |
| Styliani Gioupi | Handball | 2004 Summer | |
| Marios Giourdas | Volleyball | 2004 Summer | |
| Daniele Giovanardi | Italy | Athletics | 1972 Summer | |
| Mattia Giovanella | Curling | 2022 Winter | |
| Francesco Giovanelli | Sailing | 1928 Summer | |
| Gordy Giovanelli | United States | Rowing | 1948 Summer | |
| Guido Giovanelli | Italy | Sailing | 1928 Summer | |
| Ivo Giovanelli | Yugoslavia | Water polo | 1948 Summer | |
| Renato Giovanelli | Italy | Art competitions | 1948 Summer | |
| Marco Giovannetti | Road cycling | 1984 Summer | |
| André Giovanini | Brazil | Equestrian eventing | 1996 Summer | |
| Luciano Giovannetti | Italy | Shooting | 1980 Summer, 1984 Summer, 1988 Summer | |
| Andrea Giovannini | Speed skating | 2014 Winter, 2018 Winter, 2022 Winter | |
| Carlotta Giovannini | Artistic gymnastics | 2008 Summer | |
| Gaia Giovannini | Volleyball | 2024 Summer | |
| Guglielmo Giovannini | Football | 1948 Summer | |
| Riccardo Giovannini [ Wikidata ] | Diving | 2024 Summer | |
| Achille Giovannoni | France | Rowing | 1952 Summer | |
| Guilherme Giovannoni | Brazil | Basketball | 2012 Summer, 2016 Summer | |
| Dumeng Giovanoli | Switzerland | Alpine skiing | 1964 Winter, 1968 Winter | |
| Emilio Giovanoli | Italy | Athletics | 1908 Summer | |
| Rodolfo Giovenzana | Volleyball | 1976 Summer | |
| Andrea Giovi | 2012 Summer | |
| Girolamo Giovinazzo | Judo | 1996 Summer, 2000 Summer | |
| Sebastian Giovinco | Football | 2008 Summer | |
| Graham Gipson | Australia | Athletics | 1956 Summer | |
| Gerard Giraldo | Colombia | 2016 Summer | |
| Jorge Hugo Giraldo | Artistic gymnastics | 2004 Summer, 2008 Summer, 2012 Summer | |
| Juan Giraldo | Wrestling | 1996 Summer | |
| Óscar Giraldo | Road cycling | 1996 Summer | |
| Santiago Giraldo | Tennis | 2012 Summer | |
| Arnie David Giralt | Cuba | Athletics | 2004 Summer, 2008 Summer, 2012 Summer | |
| David Giralt | 1980 Summer | |
| Jaime Giralt | Spain | Rowing | 1924 Summer | |
| Gaston Giran | France | 1920 Summer | |
| Adam Girard de Langlade Mpali | Gabon | Swimming | 2020 Summer, 2024 Summer | |
| Aya Girard de Langlade Mpali | 2020 Summer | |
| Christine Girard | Canada | Weightlifting | 2008 Summer, 2012 Summer | |
| Daniel Girard | France | Field hockey | 1908 Summer | |
| François Girard | Sailing | 1972 Summer | |
| Lionel Girard | Rowing | 1976 Summer | |
| Patricia Girard | Athletics | 1988 Summer, 1992 Summer, 1996 Summer, 2000 Summer | |
| Pierre Girard | Switzerland | Sailing | 1960 Summer | |
| Samuel Girard | Canada | Short track speed skating | 2018 Winter | |
| Sylvain Girard | France | Ice hockey | 1994 Winter | |
| Xavier Girard | Nordic combined | 1988 Winter, 1992 Winter | |
| Alexandre Girard-Bille | Switzerland | Cross country skiing, Nordic combined, Ski jumping | 1924 Winter | |
| Marc Girardelli | Luxembourg | Alpine skiing | 1988 Winter, 1992 Winter, 1994 Winter | |
| Berthe Girardet | France | Art competitions | 1924 Summer, 1928 Summer | |
| Noémi Girardet | Switzerland | Swimming | 2016 Summer | |
| Robert Girardet | France | Sailing | 1924 Summer | |
| Véronique Girardet | Shooting | 2008 Summer, 2012 Summer | |
| Francesco Girardi | Italy | Equestrian eventing | 1988 Summer, 1992 Summer | |
| Ulrico Girardi | Bobsleigh | 1956 Winter | |
| Wolfgang Girardi | Austria | Artistic gymnastics | 1952 Summer | |
| Maurice Girardot | France | Basketball | 1948 Summer | |
| Aurélien Giraud | Skateboarding | 2020 Summer, 2024 Summer | |
| Marie-Laure Giraudon | Swimming | 1992 Summer | |
| Evann Girault | Niger | Fencing | 2024 Summer | |
| Olivier Girault | France | Handball | 2000 Summer, 2004 Summer, 2008 Summer | |
| Eduard Giray | West Germany | Wrestling | 1976 Summer | |
| Cameron Girdlestone | Australia | Rowing | 2016 Summer, 2020 Summer | |
| Zemgus Girgensons | Latvia | Ice hockey | 2014 Winter | |
| Giovanni Girgenti | Italy | Boxing | 1964 Summer | |
| Ram Bahadur Giri | Nepal | 1988 Summer | |
| André Giriat | France | Rowing | 1932 Summer, 1936 Summer | |
| Guillermo Giribaldi | Netherlands Antilles | Football | 1952 Summer | |
| Pamela Girimbabazi | Rwanda | Swimming | 2000 Summer, 2004 Summer, 2008 Summer | |
| Yaşar Giritli | Turkey | Boxing | 1996 Summer | |
| Nikola Girke | Canada | Sailing | 2004 Summer, 2008 Summer, 2012 Summer, 2016 Summer, 2020 Summer | |
| Werner Girke | West Germany | Athletics | 1968 Summer | |
| Cosmin Gîrleanu | Romania | Boxing | 2020 Summer | |
| Dan Gîrleanu | Volleyball | 1980 Summer | |
| Ion Gîrleșteanu | Rugby | 1924 Summer | |
| Brian Girling | Great Britain | Shooting | 1976 Summer | |
| Ermias Girma | Ethiopia | Athletics | 2024 Summer | |
| Lamecha Girma | 2020 Summer, 2024 Summer | |
| Naomi Girma | United States | Football | 2024 Summer | |
| Mert Girmalegesse | Turkey | Athletics | 2008 Summer | |
| Biniam Girmay | Eritrea | Road cycling | 2024 Summer | |
| Alejandro Giró | Argentina | Biathlon | 1988 Winter | |
| Gustavo Giró | 1988 Winter | |
| José Giro | Spain | Cross country skiing | 1980 Winter, 1984 Winter, 1988 Winter | |
| María Giro | Argentina | Biathlon | 1992 Winter, 1994 Winter | |
| Robert Girod | Switzerland | Water polo | 1924 Summer | |
| Thomas Girod | France | Luge | 2010 Winter | |
| Alfredo Girón | Spain | Rowing | 1996 Summer | |
| Carlos Girón | Mexico | Diving | 1972 Summer, 1976 Summer, 1980 Summer, 1984 Summer | |
| Esperanza Girón | Athletics | 1964 Summer, 1968 Summer | |
| Marco Antonio Girón | Guatemala | Wrestling | 1952 Summer | |
| Marcos Giron | United States | Tennis | 2020 Summer, 2024 Summer | |
| Francisco Gironella | Spain | Rowing | 1952 Summer | |
| Ronald Girones | Cuba | Judo | 2008 Summer | |
| Thibault Giroud | France | Bobsleigh | 2002 Winter | |
| Romain Girouille | Archery | 2008 Summer, 2012 Summer | |
| Auguste Giroux | Rugby | 1900 Summer | |
| Mathieu Giroux | Canada | Speed skating | 2010 Winter, 2014 Winter | |
| Fritz Girr | West Germany | Sailing | 1988 Summer | |
| Joel Girrbach | Switzerland | Golf | 2024 Summer | |
| Carl-Oscar Girsén | Finland | Sailing | 1912 Summer | |
| Karolis Girulis | Lithuania | Shooting | 2020 Summer | |
| Kathy Girvan | Canada | Volleyball | 1976 Summer | |
| Margaret Girvan | Great Britain | Swimming | 1956 Summer | |
| Martin Girvan | Athletics | 1984 Summer | |
| Paula Girven | United States | 1976 Summer | |
| Ivan Giryov | Russian Olympic Committee | Swimming | 2020 Summer | |
| Sylvie Giry-Rousset | France | Cross country skiing | 1992 Winter, 1994 Winter | |
| Benjamin Gischard | Switzerland | Artistic gymnastics | 2016 Summer, 2020 Summer | |
| Dominique Gisin | Alpine skiing | 2010 Winter, 2014 Winter | |
| Marc Gisin | 2018 Winter | |
| Michelle Gisin | 2014 Winter, 2018 Winter, 2022 Winter | |
| Disa Gísladóttir | Iceland | Athletics | 1976 Summer, 1984 Summer | |
| Alfreð Gíslason | Handball | 1984 Summer, 1988 Summer | |
| Guðmundur Gíslason | Swimming | 1960 Summer, 1964 Summer, 1968 Summer, 1972 Summer | |
| Kolbeinn Gíslason | Judo | 1984 Summer | |
| Bianca Gisler [ Wikidata ] | Switzerland | Snowboarding | 2022 Winter | |
| Joel Gisler | Freestyle skiing | 2014 Winter, 2018 Winter | |
| Rolf Gisler | Athletics | 1980 Summer | |
| Amund Gismervik | Norway | Diving | 2012 Summer | |
| Marcelo Gismondi | Argentina | Rowing | 1976 Summer | |
| Lien Gisolf | Netherlands | Athletics | 1928 Summer, 1932 Summer | |
| Martin Gison | Philippines | Shooting | 1936 Summer, 1948 Summer, 1952 Summer, 1956 Summer, 1964 Summer | |
| Xavier Gispert | Spain | Field hockey | 2024 Summer | |
| Børge Gissel | Denmark | Track cycling | 1948 Summer | |
| Leonid Gissen | Soviet Union | Rowing | 1952 Summer, 1956 Summer | |
| Gissing Family | Great Britain | Alpine skiing | 1964 Winter | |
| Julius Gitahi | Kenya | Athletics | 2000 Summer | |
| Kasey Giteau | Australia | Swimming | 2000 Summer | |
| Ibrahim Githaiga | Kenya | Rowing | 2004 Summer | |
| Arsen Gitinov | Russia, Kyrgyzstan | Wrestling | 2000 Summer, 2008 Summer | |
| Vasile Marian Gîtlan [ Wikidata ] | Romania | Luge | 2022 Winter | |
| Charles Gitonga | Kenya | Athletics | 1996 Summer | |
| Adam Gitsham | Australia | Shooting | 2000 Summer | |
| Christian Gitsham | South Africa | Athletics | 1912 Summer, 1920 Summer | |
| Hugo Gittens | Trinidad and Tobago | Weightlifting | 1964 Summer, 1968 Summer | |
| Lancelot Gittens | Guyana | Athletics | 1996 Summer | |
| Ramon Gittens | Barbados | 2012 Summer, 2016 Summer | |
| Tyra Gittens | Trinidad and Tobago | 2020 Summer | |
| Niccolò Gitto | Italy | Water polo | 2012 Summer, 2016 Summer | |
| Jean Giubbini | Switzerland | Field hockey | 1960 Summer | |
| Daniel Giubellini | Artistic gymnastics | 1992 Summer | |
| Luca Giubellini | 2024 Summer | |
| Matteo Giubellini | 2024 Summer | |
| Jean-Pierre Giudicelli | France | Modern pentathlon | 1968 Summer, 1972 Summer | |
| Martin Giuffre | Canada | Badminton | 2016 Summer | |
| Domenico Giuffrida | Italy | Wrestling | 1976 Summer | |
| Odette Giuffrida | Judo | 2016 Summer, 2020 Summer, 2024 Summer | |
| Guglielmo Giuliani [ Wikidata ] | Art competitions | 1936 Summer | |
| Maximillian Giuliani | Australia | Swimming | 2024 Summer | |
| Guillermo Giumelli | Argentina | Alpine skiing | 1980 Winter | |
| Leo Giunchi | Italy | Boxing | 1920 Summer | |
| Vanessa Giunchi | Figure skating | 2002 Winter | |
| Alessandra Giungi | Judo | 1992 Summer, 1996 Summer | |
| Marco Giungi | Athletics | 2004 Summer | |
| Giulio Giunta | Modern pentathlon | 1960 Summer | |
| Giuseppe Giunta | Wrestling | 1996 Summer, 2000 Summer | |
| Matteo Giupponi | Athletics | 2016 Summer | |
| Alexandru Giura | Romania | Canoe sprint | 1980 Summer | |
| Giuseppe Giurato | Italy | Fencing | 1900 Summer | |
| Elena Giurcă | Romania | Rowing | 1976 Summer, 1980 Summer | |
| Marcello Giuria | Italy | Wrestling | 1924 Summer | |
| Nicole Gius | Alpine skiing | 2002 Winter, 2010 Winter | |
| Lucian Giușcă | Romania | Shooting | 1968 Summer | |
| Antônio Giusfredi | Brazil | Athletics | 1932 Summer | |
| Guglielmo Giusti | San Marino | Shooting | 1960 Summer, 1972 Summer | |
| María Elena Giusti | Venezuela | Artistic swimming | 1988 Summer, 1992 Summer | |
| Sofia Giustini [ Wikidata ] | Italy | Water polo | 2024 Summer | |
| Matt Giusto | United States | Athletics | 1996 Summer | |
| Luca Giustolisi | Italy | Water polo | 1996 Summer | |
| Nasser Givehchi | Iran | Wrestling | 1952 Summer, 1956 Summer | |
| Georges Givel | Switzerland | Boxing | 1924 Summer | |
| Randy Givens | United States | Athletics | 1984 Summer | |
| Shakhram Giyasov | Uzbekistan | Boxing | 2016 Summer | |
| Abdul Karim Gizar [ Wikidata ] | Iraq | Weightlifting | 1980 Summer | |
| Bayazit Gizatullin | Soviet Union | Cross country skiing | 1964 Winter | |
| Zerehune Gizaw | Ethiopia | Athletics | 1992 Summer | |
| Georgios Giziotis | Greece | Swimming | 1996 Summer | |
| G.Jagi [ Wikidata ] | Afghanistan | Field hockey | 1948 Summer | |
| Akil Gjakova | Kosovo | Judo | 2020 Summer, 2024 Summer | |
| Nora Gjakova | 2016 Summer, 2020 Summer, 2024 Summer | |
| Kreshnik Gjata | Albania | Swimming | 2004 Summer | |
| Marte Gjefsen | Norway | Freestyle skiing | 2010 Winter, 2014 Winter | |
| Egil Gjelland | Biathlon | 1998 Winter, 2002 Winter | |
| Per Gjelten | Cross country skiing, Nordic combined | 1952 Winter | |
| Tord Asle Gjerdalen | Cross country skiing | 2006 Winter, 2010 Winter, 2014 Winter | |
| Jacob Gjerding | Denmark | Diving | 1952 Summer | |
| Josip Gjergja | Yugoslavia | Basketball | 1960 Summer, 1964 Summer | |
| Ottar Gjermundshaug | Norway | Cross country skiing, Nordic combined | 1952 Winter | |
| Cathrine Gjerpen | Sailing | 2008 Summer | |
| Anne Line Gjersem | Figure skating | 2014 Winter | |
| Andreas Gjersøe | Canoe sprint | 2004 Summer | |
| Doug Gjertsen | United States | Swimming | 1988 Summer, 1992 Summer | |
| Finn Gjertsen | Norway | Artistic gymnastics | 1984 Summer | |
| Alv Gjestvang | Speed skating | 1956 Winter, 1960 Winter, 1964 Winter | |
| Petros Gkaidatzis | Greece | Rowing | 2024 Summer | |
| Konstantinos Gkaripis | Weightlifting | 2008 Summer | |
| Nikolaos Gkillas | Water polo | 2024 Summer | |
| Konstantinos Gkiouvetsis | 2020 Summer | |
| Kristian Gkolomeev | Swimming | 2012 Summer, 2016 Summer, 2020 Summer, 2024 Summer | |
| Theodora Gkountoura | Fencing | 2020 Summer, 2024 Summer | |