C
- Truman Capote (1924–1984), American writer, wrote Breakfast at Tiffany's (1958) and In Cold Blood (1966)
- Edward Carpenter (1844–1929), English writer
- Nancy Cárdenas (1934-), Mexican author
- Julián del Casal (1863–1893), Cuban poet
- Clint Catalyst (b. 1971), American writer
- Willa Cather (1873–1947), American author
- Catullus (ca 85-ca 55 B.C.), Roman poet
- Constantine P. Cavafy (1863–1933), Greek-language poet born in Alexandria (Egypt)
- Luis Cernuda (1902–1963), Spanish poet
- Jane Chambers (1937–1983), American author
- Jessie Chandler (1968– ), American author, writes the Shay O'Hanlon Caper Series
- John Cheever (1912–1982), American author
- Hélène Cixous (b. 1937), French writer
- John Cleland (1710–1789), English author
- Jean Cocteau (1889–1963), French author
- Colette (1873–1954), French author, wrote Claudine s'en va (1903)
- Ivy Compton-Burnett (1884–1969), English author
- Timothy Conigrave (1959–1994), Australian writer, wrote Holding the Man (1995)
- Copi (pseudonym of Raúl Damonte, 1941–1987), Argentine author, wrote in French in France
- Marie Corelli (1855–1924), Scottish author
- Noël Coward (1899–1973), English playwright
- Hart Crane (1899–1933), American author
- Countee Cullen (1903–1946), African American poet of Harlem Renaissance
- Michael Cunningham (1952- ), American author, wrote The Hours (1998)
Read more about this topic: List Of LGBT Writers