- Sinstadt, Gerald (1930- ) (stories)
- Noted British sportscaster.
- Sinyavsky, Andrey (Donatovich) (1925-1997) (stories)
- See www.sf-encyclopedia.com/entry/sinyavsky_andrey
- Siodmak, Curt (1902-2000) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/siodmak_curt
- Siple, Paul A(llman) (1908-1968) (stories) (assoc.)
- See en.wikipedia.org/wiki/Paul_Siple
- Sira, Ben [fl. 180-175 BC] (stories)
- See en.wikipedia.org/wiki/Ben_Sira
- Siren, Sofia (fl. 2010s) (stories)
- See sofiasiren.tumblr.com
- Siringo, Charles A(ngelo) (1855-1928) (stories)
- See en.wikipedia.org/wiki/Charlie_Siringo
- Sirius, R. U. [born Ken Goffman] (1952- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/R._U._Sirius
- Sirois, Al L. (fl. 1970s-2010s) (stories) (art)
- See www.alsirois.com
- Sirois, Douglas A. (fl. 2000s-2010s) (stories) (art) (assoc.)
- See www.dougsirois.com
- Sisler, George H(arold) (1893-1973) (stories)
- See en.wikipedia.org/wiki/George_Sisler
- Sisley, Raymond G(eorge) (1892-1963) (art)
- See pulpartists.com/Sisley.html
- Sisson, Amy (fl. 2000s-2010s) (stories)
- See amysreviews.blogspot.co.uk
- Sistla, Amber D. (fl. 2000s-2010s) (stories)
- See www.ambersistla.com
- Sisty, Alice (May) (1906-1953) (stories) (assoc.)
- See freepages.genealogy.rootsweb.ancestry.com/sistydescendents/Alice%20Sisty.htm
- Sittenfeld, (Elizabeth) Curtis (1975- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Curtis_Sittenfeld
- Sitwell, [Sir] (Francis) Osbert (Sacheverell), Bart. (1892-1969) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/sitwell_osbert
- Siverling, Michael (fl. 2000s) (stories)
- See us.macmillan.com/author/michaelsiverling
- Siviter, William Henry (1858-1939) (stories)
- See prabook.com/web/person-view.html?profileId=1090003
- Sjolander, John P(eter) [born Jonas Petter Sjölander] (1851-1939) (stories)
- See collections.carli.illinois.edu/cdm/ref/collection/npu_sahq/id/3946
- Sjunneson-Henry, Elsa (fl. 2010s) (stories)
- See feministsonar.com
- Skaftun, Emily C. (fl. 2000s-2010s) (stories)
- See www.eskaftun.com
- Skal, David J(ohn) (1952- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/skal_david_j
- Skallagrimson, Eigill ({c}910-{c}990) (stories)
- See en.wikipedia.org/wiki/Egill_Skallagr%C3%ADmsson
- Skank, Nathan (fl. 2000s) (art)
- See www.creativeshake.com/profile.html?MyUrl=NathanSkank
- Skeats, Leonard (Frank) (1874-1943) (art)
- See bearalley.blogspot.com/2018/08/leonard-skeats.html
- Skelton, Betty (1926-2011) (stories) (assoc.)
- See en.wikipedia.org/wiki/Betty_Skelton_Erde
- Skelton, J(oseph) R(atcliffe) (1865-1927) (art)
- See www.lookandlearn.com/blog/10143/joseph-ratcliffe-skelton-artist/
- Skelton, John ({c}1463-1529) (stories)
- See en.wikipedia.org/wiki/John_Skelton
- Skelton, Paul (fl. 1970s-2010s) (stories) (art)
- See fancyclopedia.org/paul-skelton
- Skelton, Robin (1925-1977) (stories) (assoc.)
- See en.wikipedia.org/wiki/Robin_Skelton
- Skerry, Cory (fl. 2010s) (stories) (art)
- See plunderpuss.net/skerry/faq.html
- Sketchley, Martin (fl. 1990s-2010s) (stories) (assoc.)
- See www.martinsketchley.co.uk
- Skibsrud, Johanna (Shively) (1980- ) (stories)
- See en.wikipedia.org/wiki/Johanna_Skibsrud
- Skidelsky, Berenice C. (1887-1984) (stories)
- See archives.nypl.org/mss/2768
- Skidmore, Joseph William (1890-1938) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/skidmore_joseph_w
- Skidmore, Thornton D. (fl. 1910s-1940s) (art)
- Born in Brooklyn, New York.
- Skinner, Alanson (Buck) (1886-1925) (stories)
- Noted anthropologist. Born in Buffalo, New York; died near Tokio, North Dakota.
- Skinner, B(urrhus) F(rederick) (1904-1990) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/skinner_b_f
- Skinner, Constance Lindsay (1877-1939) (stories)
- Born in British Columbia.
- Skinner, Cortney (fl. 1980s-2000s) (stories) (art)
- See www.cortneyskinner.com
- Skinner, Henrietta (Channing) Dana (fl. 1890s-1900s) (stories)
- See www.patheos.com/blogs/mcnamarasblog/2013/11/forgotten-19th-century-catholic-authors-henrietta-dana-skinner.html
- Skinner, Otis (A.) (1858-1942) (stories)
- See en.wikipedia.org/wiki/Otis_Skinner
- Skirrow, (John) Desmond (1922-1976)
- Born in Wales; painter, designer, journalist, creative director for advertising agency.
- Sklar, David (fl. 2000s-2010s) (stories)
- See davidwriting.com
- Skoggard, Bruno (1921-1978) (stories)
- Born in Sweden and came to the U.S. as a young boy; joined the Royal Canadian Air Force in 1941; after the war flew missions all over China for the Civil Air Transport; then settled on Long Island to become an ad agency executive and short story writer.
- Skolnik, Fred (fl. 2010s) (stories)
- See en.wikipedia.org/wiki/Fred_Skolnik
- Skolsky, Sidney (1905-1983) (stories) (art)
- See en.wikipedia.org/wiki/Sidney_Skolsky
- Skovron, Jon (fl. 2000s-2010s) (stories)
- See jonskovron.com
- Sky, Kathleen (stories)
- See en.wikipedia.org/wiki/Kathleen_Sky
- Skye, Mav (fl. 2010s) (stories)
- See www.mavskye.com
- Skye, Obert (1970- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Obert_Skye
- Slade, Mary B(ridges) C(anedy) (1826-1882) (stories)
- See www.whatsoproudlywehail.org/authors/mary-b-c-slade
- Sladek, John (Thomas) (1937-2000) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/sladek_john_t
- Sladen, Douglas B(rooke) W(heelton) (1856-1947) (stories)
- See en.wikipedia.org/wiki/Douglas_Sladen
- Slaney, George Wilson (1884-1978) (stories)
- Born in Wednesbury, England; educated in England, France and Germany; schoolmaster; lived in Glasgow.
- Slater, H(elen) D(ick) (1889-1950) (stories)
- Born in Edmonton, England; died in Woolwich.
- Slater, Henry J. (1879-1963) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/slater_henry_j
- Slater, Maggie (fl. 2000s-2010s) (stories)
- See maggiedot.wordpress.com
- Slater, (Charles) Montagu (1902-1956) (stories)
- Born in Cumberland; educated at Oxford; writer, scriptwriter, editor and critic; lived in London.
- Slater, Robert L. (fl. 1990s-2010s) (stories) (assoc.)
- See desertedlands.com
- Slatter, Angela (Gaye) (1967- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Angela_Slatter
- Slattery, Bill (fl. 1970s-1990s) (stories)
- Former reporter for the New York Post who died before 2003; Jesse was his grandfathers first name.
- Slattery, Brian Francis (1975- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/slattery_brian_francis
- Slattum, J. R. (fl. 2010s) (art)
- See www.jrslattum.com
- Slauson, Harold Whiting (1883-1953) (stories)
- See www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=13420711
- Sleath, Frederick (James) (1889-1966) (stories)
- Born in Boness, West Lothian, Scotland; served as a sniper officer in the 51st Highland Division in France in WWI.
- Sleator, William (Warner, III) (1945-2011) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/sleator_william
- Slesar, Henry (1927-2002) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/slesar_henry
- Slesinger, Tess [born Theresa Slesinger] (1905-1945) (stories)
- See en.wikipedia.org/wiki/Tess_Slesinger
- Slimani, Leïla (1981- ) (stories)
- See en.wikipedia.org/wiki/Le%C3%AFla_Slimani
- Slipher, Earl C(harles) (1883-1964) (stories) (assoc.)
- See en.wikipedia.org/wiki/Earl_C._Slipher
- Sloan, John (French) (1871-1951) (stories) (art) (assoc.)
- See en.wikipedia.org/wiki/John_French_Sloan
- Sloan, Norman R(ose) (1902-1977) (stories)
- See ila.ilsl.br/pdfs/v45n3a14.pdf
- Sloboda, Noel (fl. 2000s-2010s) (stories)
- See www2.yk.psu.edu/sites/njs16
- Slocombe, Edwin M. (1881-1947) (stories)
- No additional information available.
- Slocombe, George (Edward) (1894-1963) (stories)
- See www.sf-encyclopedia.com/entry/slocombe_george
- Slocombe, Herbert (fl. 1910s-1920s) (stories)
- Born in New Haven, Connecticut.
- Slocum, Joshua (1844-1909) (stories) (assoc.)
- See en.wikipedia.org/wiki/Joshua_Slocum
- Slonczewski, Joan (Lyn) (1956- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/slonczewski_joan
- Sloss, Radha (Rajagopal) (1931- ) (stories)
- Indian writer.
- Slosson, Annie Trumbull (1838-1926) (stories)
- See en.wikipedia.org/wiki/Annie_Trumbull_Slosson
- Slote, Alfred (H.) (1926- ) (stories)
- See en.wikipedia.org/wiki/Alfred_Slote
- Slouka, Mark (1958- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Mark_Slouka
- Sluckin, W(ladyslaw) (1919-1985) (stories) (assoc.)
- See www2.le.ac.uk/departments/npb/news-1/sluckin-lecture
- Small, Austin J(ames) (1894-1929) (stories)
- See www.sf-encyclopedia.com/entry/small_austin_j
- Small, Fred(erick Charles William) (1881-1960) (art)
- See pulpartists.com/Small.html
- Small, James M.; probably a pseudonym of Dennis Small (1922-1993) (stories)
- See bearalley.blogspot.co.uk/2014/11/james-m-small.html
- Small, Joe Austell (1914-1994) (stories)
- Writer, publisher, editor. Born in Burleson County, Texas.
- Small, Sam(uel) W. (1851-1931) (stories)
- See en.wikipedia.org/wiki/Samuel_W._Small
- Small, Sidney Herschel (1893-1958) (stories) (assoc.)
- See pulpflakes.blogspot.co.uk/2015/03/sidney-herschel-small-author-traveller.html
- Smalley, George W(ashburn) (1833-1916) (stories)
- See www.whistler.arts.gla.ac.uk/correspondence/people/biog/?bid=Smal_GW
- Smallshaw, Kay (1905-1996) (stories)
- See www.persephonebooks.co.uk/kay-smallshaw/
- Smaridge, Norah (1903-1994) (stories)
- See www.lib.usm.edu/legacy/degrum/public_html/html/research/findaids/smaridge.htm
- Smart, A. C. (fl. 2000s-2010s) (stories)
- See www.beneath-ceaseless-skies.com/authors/a-c-smart-quinn-braver/
- Smart, Christopher (1722-1771) (stories) (assoc.)
- See en.wikipedia.org/wiki/Christopher_Smart
- Smart, David A(rchibald) (1892-1952) (stories)
- See en.wikipedia.org/wiki/David_A._Smart
- Smart, (Henry) Hawley (1833-1893) (stories)
- Born in Dover, Kent, son of an army major; joined army in 1849 and served in the Crimean War, in India, and in Canada; eventually supported himself as a novelist with emphasis on military and sporting life; died in Devon.
- Smart, W(illiam) M(arshall) (1889-1975) (stories) (assoc.)
- See en.wikipedia.org/wiki/William_Marshall_Smart