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- Fred Saberhagen, (1930–2007)
- Michelle Sagara West
- Angie Sage, author of the Septimus Heap series
- R.A. Salvatore, (born 1959) author of the Drizzt novels
- Brandon Sanderson
- Andrzej Sapkowski, (born 1948)
- Charles R. Saunders, (born 1946)
- Martin Scott, (born 1959), author of "Thraxas"
- Darren Shan, author of The Saga of Darren Shan, The Demonata and short stories
- Robert Sheckley, (born 1928)
- Mary Shelley, (1797–1851) author of Frankenstein and short stories
- Will Shetterly
- Tony Shillitoe (born 1955) author of The Andrakis Trilogy
- Sharon Shinn
- Gary Shipman, (born 1966) author of Pakkins' Land
- Rhoda Shipman, (born 1968) author of Pakkins' Land
- Robert Silverberg, (born 1935)
- William Mark Simmons (Wm. Mark Simmons), (born 1953)
- Johanna Sinisalo, (born 1958)
- Isaac Bashevis Singer, (1902–1991)
- Clark Ashton Smith, (1893–1961)
- Guy Smith (writer), (born 1957)
- Mark Andrew Smith, author of The New Brighton Archeological Society
- Sherwood Smith
- Thorne Smith, (1892–1934)
- S.P. Somtow, pseudonym of Somtow Sucharitkul
- Alison Spedding
- Wen Spencer, (born 1963)
- Nancy Springer, (b.1948)
- Michael A. Stackpole, (born 1957)
- Christopher Stasheff, (born 1944)
- Brooke Stevens, author of The Circus of the Earth and the Air
- Mary Stewart, (born 1916)
- Paul Stewart, author of The Edge Chronicles
- Caroline Stevermer
- Frank R. Stockton, (1834–1902)
- James Stoddard
- David Lee Stone, author of The Illmoor Chronicles
- Jonathan Stroud, author of The Bartimaeus Trilogy
- Tricia Sullivan, (born 1968) writes as Valery Leith
- Michael J. Sullivan, (born 1961) author of The Riyria Revelations
- Thomas Burnett Swann, (1928–1976)
- Jonathan Swift, (1667–1745)
- Mitzi Szereto, author of In Sleeping Beauty's Bed: Erotic Fairy Tales and editor of Thrones of Desire: Erotic Tales of Swords, Mist and Fire
Read more about this topic: List Of Fantasy Authors