S
- Steve Saffel, USA, freelance editor, formerly at Del Rey Books and Marvel Comics
- Arthur W. Saha (1923–1999), US anthologist closely associated with Donald A. Wollheim
- Karl-Herbert Scheer (1928–1991), Germany, shared editorial direction of the Perry Rhodan series with Walter Ernsting
- Liz Scheier, editor formerly for Roc and Del Rey
- Christopher Schelling, USA, literary agent, former editor for Roc Books and HarperPrism
- Chris Schluep, USA, editor at Del Rey Books
- Stanley Schmidt (born 1944), USA, award-winning editor of Analog Science Fiction and Fact since 1977
- George H. Scithers (born 1929), USA, first editor of Isaac Asimov's Science Fiction Magazine 1976–1981; editor Amazing Stories, mid-1980s
- Shelly Shapiro, USA, acquisitions editor, Ballantine Del Rey
- Larry Shaw (1924–1985), editor of Infinity Science Fiction, If magazine and Lancer Books
- Mike Shohl, freelance editor, formerly with HarperCollins
- John Silbersack, USA, literary agent, Trident Media Group. Former publishing director or editor at HarperCollins, Warner Books, Roc and Berkley
- Steven H Silver, American anthologist with Martin H. Greenberg; critic; editor at ISFiC Press
- Robert Silverberg (born 1935), important American writer and editor of original anthologies and a "The Best of" line from 2001–2002.
- Melissa Ann Singer, USA, editor, Tor/Forge; primarily known as a horror editor
- Jason Sizemore, American founder and former editor of Apex Digest, anthologist, managing editor of Apex Publications
- T. O'Conor Sloane (1851–1940), USA, editor of Amazing Stories (1929–1938)
- George E. Slusser, (born 1938), USA, editor of Eaton anthologies of SF studies
- Anne Sowards, USA, acquisitions editor, Roc Books and Ace Books
- Simon Spanton, UK, co-editorial director of Orion Gollancz, UK
- Cat Sparks, Australia, founding editor of Agog! Press
- Lou Stathis (1952–1997), editor of Heavy Metal magazine and of DC Comics' Vertigo line
- Paul Stevens, USA, editor at Tor/Forge Books
- Jonathan Strahan (born 1964 Northern Ireland), Australia, anthologist, editor, publisher and critic
Read more about this topic: List Of Science Fiction Editors