List of gay, lesbian or bisexual people: I–J I I

| Name_ | Lifetime | Nationality | Notable_as | Notes_ |
|---|---|---|---|---|
| Taiga Ishikawa | b. 1974 | Japanese | Politician, activist | G |
| Sam Irvin | b. 1956 | American | Director | G |
| Elisabeth Irwin | 1880–1942 | American | Educator, psychologist, reformer | L |
| Christopher Isherwood | 1904–1986 | English | Author | G |
| Arturo Islas | 1938–1991 | American | Academic | G |
| Maja Ivarsson | b. 1979 | Swedish | Rock musician (The Sounds) | B |
| George Cecil Ives | 1867–1950 | British | Poet, writer, penal reformer, gay rights campaigner | G |
| James Ivory | b. 1928 | American | Filmmaker | G |
| Boris Izaguirre | b. 1965 | Venezuelan | Writer | G |