There are 136 modern Summer Olympic athletes, who made their Olympic debut up to and including 2000, who have identified or been identified as lesbian, gay, bisexual, transgender, pansexual, non-binary, queer, or who have openly been in a same-sex relationship, including one who has also competed at the Winter Olympic Games. The first Olympic Games in which an athlete now known to be LGBT+ competed was the 1900 Summer Olympics, also the first LGBT+ Olympic medalist and first contemporaneously out Olympian.

The most decorated able-bodied LGBT+ Summer Olympian is Australian swimmer Ian Thorpe, with 9 medals including 5 golds. At least 79 LGBT+ Summer Olympians who debuted up to and including 2000 are medalists (58.09%), of which 38 have at least one gold medal (27.94%).

Overview

Summer Olympic athletes and coaches (1900–2000)

Tables are default sorted by first Games appearance chronologically, then current surname or common nickname alphabetically, then first name alphabetically. They can be sorted by current surname (where used) or common nickname alphabetically; by country and sport alphabetically; by Games chronologically; and by medals as organised in Olympics medals tables.