- Isherwood, Christopher (1904-1986) (stories) (assoc.)
- See en.wikipedia.org/wiki/Christopher_Isherwood
- Ishiguro, Kazuo (1954- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Kazuo_Ishiguro
- Isip, (Pagsilang) Rey (1911-1979) (art)
- See pulpartists.com/Isip.html
- Iskowitz, Joel (1946- ) (art)
- See en.wikipedia.org/wiki/Joel_Iskowitz
- Islam, Nazifa (fl. 2010s) (stories)
- See www.nazifaislam.com
- Isle, Alex (1963- ) (stories)
- See en.wikipedia.org/wiki/Sue_Isle
- Islington, James (fl. 2010s) (stories)
- See www.jamesislington.com
- Ison, Donna (fl. 2010s) (stories)
- See www.thebourbonista.com
- Ison, Tara (fl. 1990s-2010s) (stories)
- See en.wikipedia.org/wiki/Tara_Ison
- Israel, Jeremiah (fl. 2010s) (stories)
- See jdotis.com
- Isvandi, Mehrdad (fl. 2010s) (stories) (art) (assoc.)
- See mehrdadisvandi.blogspot.co.uk
- Ito, Norio (1942- ) (stories)
- See www.sf-encyclopedia.com/entry/ito_norio
- Iversen-Ejve, Jonatan (fl. 2000s) (art)
- See iversenejve.blogspot.co.uk
- Ivie, Larry (1937-2014) (art)
- See en.wikipedia.org/wiki/Larry_Ivie
- Ivkovich, Larry (fl. 2000s-2010s) (stories)
- See larryivkovichauthor.wordpress.com
- Ivy, Anne; pseudonym (fl. 2010s) (stories) (assoc.)
- See www.beneath-ceaseless-skies.com/authors/anne-ivy/
- Ivy, Maggie (fl. 2010s) (stories) (art) (assoc.)
- See www.maggieivy.com
- Izzard, Ralph (William Burdick) (1910-1992) (stories) (assoc.)
- See en.wikipedia.org/wiki/Ralph_Izzard
- Izzard, Raoul (1976- ) (stories)
- See excelsizeus.wordpress.com
- Jääskeläinen, Pasi Ilmari (1966- ) (stories) (assoc.)
- See pushkinpress.com/author/pasi-ilmari-jaaskelainen
- Jablokov, Alexander (1956- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jablokov_alexander
- Jablonsky, William (fl. 2000s-2010s) (stories)
- See siyahi.in/2011/06/william-jablonsky
- Jacinto, Jorge (fl. 2010s) (art)
- See www.jorgejacinto.com
- Jackman, Terry (fl. 2000s-2010s) (stories)
- See www.terryjackman.co.uk
- Jackson, C(aary) Paul (1902-1991) (stories)
- See findagrave.com/cgi-bin/fg.cgi/www.oocities.com/wildstar.family/fg.cgi?page=gr&GRid=14584100
- Jackson, Jay (Paul) (1905-1954) (stories)
- See pulpflakes.blogspot.co.uk/2017/09/jay-paul-jackson-artist-1905-1954.html
- Jackson, Jennifer Ruth (fl. 2010s) (stories)
- See everythingitntales.blogspot.co.uk
- Jackson, Jessi Cole (fl. 2010s) (stories) (assoc.)
- See jessicolejackson.com
- Jackson, [Sir] Peter (Robert) (1961- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Peter_Jackson
- Jackson, Robert (fl. 1970s-2000s) (stories) (art)
- See fancyclopedia.org/rob-jackson
- Jackson, Shirley (Hardie) (1919-1965) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jackson_shirley
- Jackson, Steve(n Gary) (1953- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jackson_steve_2
- Jackson, Stuart (?-2006) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jackson_stuart
- Jackson, Tim W. (fl. 2010s) (stories)
- See www.timwjackson.com
- Jacob, Charlee (1952-2019) (stories) (assoc.)
- See en.wikipedia.org/wiki/Charlee_Jacob
- Jacob, Max (1876-1944) (stories)
- See en.wikipedia.org/wiki/Max_Jacob
- Jacobi, Carl (Richard) (1908-1997) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jacobi_carl
- Jacobs, David Michael (1942- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/David_M._Jacobs
- Jacobs, Frank (1929- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Frank_Jacobs
- Jacobs, Harvey (Jay) (1930-2017) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jacobs_harvey
- Jacobs, J. Richard (1940- ) (stories)
- See www.goodreads.com/author/show/1392397.J_Richard_Jacobs
- Jacobs, John Hornor (fl. 2010s) (stories) (assoc.)
- See www.johnhornorjacobs.com
- Jacobs, Levi (fl. 2010s) (stories)
- See www.levijacobs.com
- Jacobs, Simon (fl. 2010s) (stories)
- See simonajacobs.blogspot.co.uk
- Jacques, Hillary (fl. 2010s) (stories)
- See hillaryjacques.blogspot.co.uk
- Jaffe, Bernard (1896-1986) (stories) (assoc.)
- See de.wikipedia.org/wiki/Bernard_Jaffe
- Jaffery, Sheldon R(onald) (1934-2003) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jaffery_sheldon
- Jahn, Mike [i.e., Joseph Michael Jahn] (1943- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jahn_mike
- Jainschigg, Nicholas (fl. 1980s-2010s) (stories) (art) (assoc.)
- See www.nicholasjainschigg.com
- Jakes, John (William) (1932- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jakes_john
- Jakober, Marie (1941-2017) (stories)
- See www.sf-encyclopedia.com/entry/jakober_marie
- Jakubowski, Maxim (1944- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jakubowski_maxim
- Jalon, Aimé (fl. 2010s) (art)
- See aimejalon.free.fr
- James, D(aniel) L(ewis) (1911-1988) (stories)
- See en.wikipedia.org/wiki/Daniel_Lewis_James
- James, Edward (Frederick) (1947- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/james_edward
- James, Henry (1843-1916) (stories) (assoc.)
- See en.wikipedia.org/wiki/Henry_James
- James, (David) John (1923-1993) (stories) (assoc.)
- See www.orionbooks.co.uk/authors/detail.page?id=vgLd8syiJxWh187/4ehBOeINfDS1uGXtM4GVz6adHPYd3rE6jfh379g_
- James, Kasia (fl. 2010s) (stories)
- See kasiajames.wordpress.com
- James, Laurence (William) (1942-2000) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/james_laurence
- James, M(ontague) R(hodes) (1862-1936) (stories) (assoc.)
- See en.wikipedia.org/wiki/M._R._James
- James, Margaret Helen (1858-1938) (stories) (assoc.)
- Cousin of M. R. James.
- James, Mary; pseudonym of Marijane Meaker (1927- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Marijane_Meaker
- James, Roby; pseudonym of Rhoda Blecker (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/james_roby
- James, Russell (1942- ) (stories)
- See russelljamesbooks.wordpress.com
- James, Vic (fl. 2010s) (stories) (assoc.)
- See www.vicjames.co.uk
- Jameson, A. D. (fl. 2010s) (stories) (assoc.)
- See adjameson.wordpress.com
- Jameson, Joelle (fl. 2010s) (stories)
- See joellejameson.com
- Jameson, Malcolm (Routh) (1891-1945) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jameson_malcolm
- Jamhour, Caroline (fl. 2010s) (stories) (art) (assoc.)
- See www.carolinejamhour.com
- Jamieson-Lucy, Allison (fl. 2010s) (stories)
- See www.beneath-ceaseless-skies.com/authors/allison-jamieson-lucy
- Jamison, Susan (1965- ) (art)
- See www.susanjamison.com
- Jancewicz, Anna Lea (fl. 2010s) (stories)
- See annajancewicz.wordpress.com
- Janes, Andrea (fl. 2010s) (stories)
- See andreajanes.com
- Jani, Seth (fl. 2010s) (stories)
- See www.sethjani.com
- Janifer, Laurence M(ark) (1933-2002) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/janifer_laurence_m
- Jansen, Mike (fl. 2010s) (stories) (assoc.)
- See www.meznir.com
- Janson, H(orst) W(aldemar) (1913-1982) (stories)
- See en.wikipedia.org/wiki/H._W._Janson
- Janson, Klaus (1952- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Klaus_Janson
- Janssens, Ken (fl. 2010s) (stories)
- See prose-press.com/new-page-3
- Jansson, Mathias (fl. 2010s) (stories)
- See mathiasjansson72.blogspot.co.uk
- Janz, Kristin (fl. 2010s) (stories)
- See www.kristinjanz.com
- Jaram, Milan (fl. 1990s-2010s) (stories) (art) (assoc.)
- See www.milanjaram.com
- Jarossi, Robin (fl. 2010s) (stories)
- See robinjarossi.com
- Jarre, Jean-Michel (André) (1948- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jean-Michel_Jarre
- Jarry, Alfred (1873-1907) (stories) (art)
- See www.sf-encyclopedia.com/entry/jarry_alfred
- Jarvis, E. K.; house pseudonym (fl. 1940s-1950s) (stories)
- See www.sf-encyclopedia.com/entry/jarvis_e_k
- Jarvis, Sharon (Sylvia) (1943- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jarvis_sharon
- Jarvis, Timothy J. (fl. 2000s-2010s) (stories)
- See timothyjjarvis.wordpress.com
- Jasiczak, Dariusz (1964- ) (art)
- See pl.wikipedia.org/wiki/Dariusz_Jasiczak
- Jastrow, Robert (1925-2008) (stories) (assoc.)
- See en.wikipedia.org/wiki/Robert_Jastrow
- Jaszak, Łukasz (1977- ) (art)
- See www.metal-archives.com/artists/%C5%81ukasz_Jaszak/87493
- Javor, Frank A.; pseudonym of Francis Anthony Jaworski (1916-2003) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/javor_frank_a
- Javor, Rado (fl. 2010s) (art)
- See radojavor.deviantart.com
- Jeannerat, Pierre (1896-1967) (stories) (assoc.)
- See en.wikipedia.org/wiki/Pierre_Jeanneret
- Jeapes, Ben (1965- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jeapes_ben
- Jeffers, Alex (fl. 1980s-2010s) (stories) (assoc.)
- See en.wikipedia.org/wiki/Alex_Jeffers
- Jeffers, Jordan (fl. 2010s) (stories)
- See www.jordanjeffers.com
- Jeffery, [Mrs.] C(hristiana) E(lizabeth Rufford) (1846-1936) (stories)
- Born in Sheldon, Warwickshire; died in Hove, Sussex; daughter of a rector in Thorne Coffin, Somerset.
- Jeffrey, Siri (1955- ) (stories)
- Former policewoman living in Texas.
- Jeffreys, Tim (fl. 2010s) (stories)
- See timjeffreyswriter.webs.com
- Jemielniak, Ula ({c}1989- ) (art)
- See www.sadir89.deviantart.com
- Jenike, Elizabeth (fl. 2010s) (stories)
- See elizabethjenike.wordpress.com
- Jenkins, Betty [i.e., Elizabeth Madden Jenkins DeHardit] (1925-2013) (stories)
- See www.legacy.com/obituaries/dailypress/obituary.aspx?pid=168251928
- Jenkins, Charles C(hristopher) (1882-1943) (stories)
- See tellersofweirdtales.blogspot.co.uk/2014/04/charles-christopher-jenkins-1882-1943.html
- Jenkins, Mark (1948- ) (stories)
- English teacher at Monterey Peninsular College.