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

| Name_ | Lifetime | Nationality | Notable_as | Notes_ |
|---|---|---|---|---|
| Paul Iacono | b. 1988 | American | Actor | G |
| Janis Ian | b. 1951 | American | Folk musician | L |
| Witi Ihimaera | b. 1944 | New Zealand | Author | G |
| William Inge | 1913–1973 | American | Playwright, novelist | G |
| Per Imerslund | 1912–1943 | Norwegian | Nazi socialist soldier, writer | G |
| John Inman | 1935–2007 | English | Actor | G |
| Daniela Iraschko-Stolz | b. 1983 | Austrian | Ski jumper | L |
| Doug Ireland | b. 1946 | American | Journalist, blogger | G |
| Jim Ireton | b. ? | American | Politician | G |
| Evelyn Irons | 1900–2000 | Scottish | Journalist | L |
| Håkan Isacson | 1958–2002 | Swedish | Intelligence agent | G |
| Richard Isay | b. 1934 | American | Author, psychiatrist | G |
| Sharon Isbin | b. 1956 | American | Classical musician | L |