- Jones, Matthew (David) (1968- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Matt_Jones_(writer)
- Jones, Mervyn (1922-2010) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jones_mervyn
- Jones, Nard [i.e., Maynard Benedict Jones] (1904-1972) (stories)
- Novelist. Born in Seattle, Washington.
- Jones, Neil R(onald) (1909-1988) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jones_neil_r
- Jones, Philip (Mitchell) (1919- ) (stories)
- Born and living in Australia.
- Jones, Rachael K. (fl. 2010s) (stories)
- See rckjones.wordpress.com
- Jones, Raymond F. (1915-1994) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jones_raymond_f
- Jones, Robert Gibson (1889-1969) (stories) (art)
- See pulpartists.com/Jones.html
- Jones, Rodney (fl. 2010s) (stories) (assoc.)
- See rodneyjonesauthor.com
- Jones, Russell (fl. 2000s-2010s) (stories)
- See poetrusselljones.blogspot.co.uk
- Jones, Stephen (Gregory) (1953- ) (stories) (art) (assoc.)
- See en.wikipedia.org/wiki/Stephen_Jones_(author)
- Jones, Stephen Graham (1972- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Stephen_Graham_Jones
- Jones, Thom (1945-2016) (stories)
- See en.wikipedia.org/wiki/Thom_Jones
- Jones-Howe, Rebecca (fl. 2010s) (stories)
- See rebeccajoneshowe.com
- Jonez, Kate (fl. 2010s) (stories) (assoc.)
- See katejonez.com
- Jong, Erica (Mann) (1942- ) (stories)
- See en.wikipedia.org/wiki/Erica_Jong
- Jordan, J(ames) A. (fl. 1930s-1950s) (stories)
- See bearalley.blogspot.co.uk/2009/12/j-jordan.html
- Jordan, Michaele (fl. 2000s-2010s) (stories)
- See www.michaelejordan.com
- Jordan, Paula S. (fl. 2000s-2010s) (stories)
- See paulasjwriter.homestead.com
- Jordan, Rebecca Ann (fl. 2010s) (stories) (art)
- See www.rebeccaannjordan.com
- Jordan, Steve (fl. 2010s) (stories)
- See thestevejordan.blogspot.co.uk
- Jordyn, Ace; pseudonym of Ann Cooney (fl. 2010s) (stories)
- See www.fictorians.com/the-fictorians/ann-cooney/
- Jørgensen, Dag ({c}1971- ) (art)
- See dajono.deviantart.com
- Jorgensen, Ivar; house pseudonym (fl. 1950s) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/jorgensen_ivar
- Jorgensen, Jeana (fl. 2010s) (stories)
- See jeanajorgensen.com/wordpress
- Joron, Andrew (fl. 1970s-2000s) (stories) (art) (assoc.)
- See www.sf-encyclopedia.com/entry/joron_andrew
- Joscelyn, Archie (Lynn) (1899-1986) (stories)
- See helenair.com/lifestyles/western-wonder/article_db7b9bfc-313d-56d9-8776-d503d679b9b6.html
- Joseph-Renaud, Jean [also given as Jean-Joseph Renaud] (1873-1953) (stories)
- Born in Paris; retired undefeated as champion fencer in France; novelist, playwright and journalist.
- Joshi, S(unand) T(ryambak) (1958- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/joshi_s_t
- Joss, Sharon (fl. 2010s) (stories)
- See www.sharonjoss.com
- Josselyn, Talbert (1885?-1961) (stories)
- Widely-published author of magazine sports stories. Served with the Office of War Information in San Francisco during WWII, died in Carmel, CA.
- Joukhadar, Jennifer Zeynab (fl. 2010s) (stories) (assoc.)
- See www.jenniferjoukhadar.com
- Jouty, Sylvain (1949- ) (stories)
- See www.jouty.com
- Jouve, Pierre-Jean (1887-1976) (stories)
- See fr.wikipedia.org/wiki/Pierre_Jean_Jouve
- Judd, Cyril; pseudonym of C. M. Kornbluth (1923-1958) & Judith Merril (1923-1997) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/judd_cyril
- Judy, Andrea (fl. 2010s) (stories)
- See judyblackcloud.wordpress.com
- Juergensen, Anneliese (fl. 2010s) (stories) (art) (assoc.)
- See anneliesejuergensen.com
- Julian, Kodiak (fl. 2010s) (stories)
- See kodiakjulian.tumblr.com
- Julian, Rod (fl. 2010s) (art)
- See rodjulian.com
- Jun, Daniel Chua Kok (1987- ) (stories) (art) (assoc.)
- See chuaster.deviantart.com
- Juneau, Eric (fl. 2010s) (stories)
- See author-quest.blogspot.co.uk
- Jung, Leah (fl. 2010s) (stories) (assoc.)
- See leahjung.com
- Jungk, Robert [born Robert Baum] (1913-1994) (stories) (assoc.)
- See en.wikipedia.org/wiki/Robert_Jungk
- Junker, Reynold (Joseph Paul) (fl. 1960s-2010s) (stories)
- See www.amazon.com/Reynold-Junker/e/B007EICJQE
- Jurado, Cristina (fl. 2010s) (stories)
- See masficcionqueciencia.com
- Justice, Daniel Heath (fl. 2010s) (stories)
- See en.wikipedia.org/wiki/Daniel_Heath_Justice
- Justus, Brian (fl. 2010s) (stories)
- See www.brianjustus.com
- Jutla, Amandeep (fl. 2010s) (stories)
- See www.amandeepjutla.com
- K, Artyv (fl. 2010s) (stories)
- See artotart.wordpress.com
- Kabir, Naim (fl. 2010s) (stories) (assoc.)
- See kabircreates.com
- Kabza, K(assidy) J(ack) (fl. 2000s-2010s) (stories) (assoc.)
- See kjkabza.com/about.html
- Kaczyński, Jacek (fl. 2010s) (art)
- See wuwejo.cgsociety.org
- Kadrey, Richard (Albert) (1957- ) (stories) (art) (assoc.)
- See www.sf-encyclopedia.com/entry/kadrey_richard
- Kael, Pauline (1919-2001) (stories) (assoc.)
- See en.wikipedia.org/wiki/Pauline_Kael
- Kafka, Franz (1883-1924) (stories) (assoc.)
- See en.wikipedia.org/wiki/Kafka
- Kagan, Janet (Megson) (1946-2008) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/kagan_janet
- Kagan, Norman (1943- ) (stories) (art)
- See www.sf-encyclopedia.com/entry/kagan_norman
- Kagmi, C. L. (fl. 2010s) (stories)
- See clkagmi.com
- Kahan, Jeffrey (fl. 2000s-2010s) (stories)
- See faculty.laverne.edu/kahanj
- Kahiu, Wanuri (fl. 2010s) (stories)
- See en.wikipedia.org/wiki/Wanuri_Kahiu
- Kahler, Hugh (Torbert) MacNair (1883-1969) (stories)
- Born in Philadelphia; educated at Princeton University; contributed fiction to numerous magazines.
- Kahn, James (1947- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/kahn_james
- Kahn, Jason (fl. 2000s-2010s) (stories)
- See jasonkahn.blogspot.co.uk
- Kahn, Rachel (fl. 2010s) (stories) (art) (assoc.)
- See www.portablecity.net
- Kail, Andrea (fl. 2000s-2010s) (stories) (assoc.)
- See www.writertopia.com/profiles/AndreaKail
- Kain, Amanda (fl. 2010s) (art)
- See www.amandakain.com
- Kaldera, Raven B. (fl. 1990s-2000s) (stories) (assoc.)
- See www.ravenkaldera.org
- Kaledin, [Colonel] Victor K(onstantine Cecil Luke de Mordowtzeff) (1887-?) (stories)
- Born in Russia; lived in England and in the U.S., where he applied for citizenship; later (in 1956) living in Norway.
- Kalez, Jay J. (1895-1982) (stories)
- Writer. Born in Spokane, Washington.
- Kalin, Deborah (fl. 2000s-2010s) (stories)
- See www.deborahkalin.com
- Kalorkoti, Eleni (fl. 2010s) (art)
- See www.elenikalorkoti.com
- Kalu, Peter (fl. 1990s) (stories) (assoc.)
- Translator, glass collector and street busker turned poet, novelist, playwright and script writer; has a degree in law and further qualifications in software programming; living in Hulme, England.
- Kamel, Babo (fl. 2010s) (stories)
- See rustandmoth.com/artists/babo-kamel
- Kamin, Nick; pseudonym of Robert J. Antonick (1939-2011) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/kamin_nick
- Kammerud, Chris (fl. 2000s-2010s) (stories)
- See chriskammerud.com
- Kamsika, Georgina (Rachael) (fl. 2010s) (stories)
- See en.wikipedia.org/wiki/Georgina_Kamsika
- Kanakia, Rahul (1985- ) (stories)
- See blotter-paper.com
- Kanas, Nick, M.D. (fl. 2000s-2010s) (stories) (assoc.)
- See lppiweb.ucsf.edu/faculty.aspx?id=578
- Kandel, Michael (1941- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/kandel_michael
- Kane, Wilson; house pseudonym (stories)
- See www.sf-encyclopedia.com/entry/kane_wilson
- Kang, Minsoo (1967- ) (stories)
- See en.wikipedia.org/wiki/Minsoo_Kang
- Kanke, Jennifer Schomburg (fl. 2000s-2010s) (stories)
- See www.jenniferschomburgkanke.com
- Kantner, Paul (1941-2016) (stories) (assoc.)
- See en.wikipedia.org/wiki/Paul_Kantner
- Kantor, MacKinlay (1904-1977) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/kantor_mackinlay
- Kapetansky, Seymour (1919-2001) (stories)
- See variety.com/2001/scene/people-news/seymour-kapetansky-1117794271
- Kaplan, A. L. (fl. 2010s) (stories) (assoc.)
- See alkaplan.daportfolio.com
- Kaplan, Martha (fl. 2010s) (stories)
- See www.marthakaplanpoet.com
- Kapp, Colin (1928-2007) (stories) (art) (assoc.)
- See www.sf-encyclopedia.com/entry/kapp_colin
- Kapp, Reginald O(tto) (1885-1966) (stories) (assoc.)
- See www.reginaldkapp.org/AboutROK/About_biography.htm
- Karagiannis, George S. (1984- ) (stories) (art)
- See karagiannis-sci-fi.blogspot.co.uk
- Karl, Jean E(dna) (1927-2000) (stories)
- See www.sf-encyclopedia.com/entry/karl_jean_e
- Karlak, David (fl. 2010s) (stories) (assoc.)
- See www.davidkarlak.com
- Karlin, Nurit (1940-2019) (stories)
- See www.nytimes.com/2019/05/07/obituaries/nurit-karlin-dead.html
- Karloff, Boris; pseudonym of William Henry Pratt (1887-1969) (stories) (assoc.)
- See en.wikipedia.org/wiki/Karloff
- Karlson, Hans; pseudonym (stories)
- See www.sf-encyclopedia.com/entry/karlson_hans
- Karlsson, Janne (1973- ) (stories)
- See www.svenskapache.se
- Karp, David (1922-1999) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/karp_david
- Karpyshyn, Drew (1971- ) (stories)
- See www.sf-encyclopedia.com/entry/karpyshyn_drew
- Karunakaran, Sandeep (fl. 2010s) (art)
- See sanskarans.deviantart.com
- Kasai, Kirsten Imani (fl. 2000s-2010s) (stories) (assoc.)
- See www.icesong.com
- Kashina, Anna (fl. 2000s-2010s) (stories) (assoc.)
- See en.wikipedia.org/wiki/Anna_Kashina
- Kassel, Mel (fl. 2010s) (stories)
- See melkassel.com
- Kastel, Warren; house pseudonym (fl. 1940s-1950s) (stories)
- See www.sf-encyclopedia.com/entry/kastel_warren
- Kastensmidt, Christopher (fl. 2000s-2010s) (stories)
- See www.eamb.org/the-author