C
- Pat Cadigan, (born 1953), USA, author; editor of Shayol #1-7 (1977–1985); co-editor of Chacal (1977)
- John W. Campbell, Jr. (1910–1971), USA, Golden Age editor of Astounding Science Fiction (later Analog) magazine, considered the single most important and influential editor in the history of science fiction
- E.J. "Ted" Carnell (1912–1972), UK, editor of New Worlds magazine (1949–1963); anthologist
- Terry Carr (1937–1987), USA, editor at Ace Books, founder of Ace Science Fiction Specials line
- Lin Carter (1930–1988), USA, editor of the Ballantine Adult Fantasy series
- Neil Clarke (born 1966), USA, editor of Clarkesworld Magazine, publisher (Wyrm Publishing)
- Keith Clayton, USA, editor at Del Rey Books
- Groff Conklin (1904–1968), USA, anthologist and critic
- Kathryn Cramer (born 1962), USA, editor and anthologist
- Edmund Crispin (1921–1978), UK, author and composer, editor of seven volumes of Best Science Fiction
- Peter Crowther (born 1949), UK, editor, publisher (PS Publishing) and anthologist
Read more about this topic: List Of Science Fiction Editors