Celia S. Friedman (born January 12, 1957) is an American fiction author.
To date she has published ten novels, several short stories, and the sourcebook The Erciyes Fragments for White Wolf's Vampire: The Masquerade. Originally a costume designer by trade, Friedman began her publishing career in 1986, and quit costuming in 1996 to write full-time. She was nominated for the John W. Campbell award for Best New Writer in 1988, her novel This Alien Shore was a New York Times Notable Book of the Year in 1998, and The Coldfire Trilogy was a finalist for NPR's Science Fiction and Fantasy Vote.