- Kotsybar, James Ph(ilip) (fl. 1980s-2020s) (items) (chron.)
- See 86logic.com/pages/jamesphkotsybar
- Kotzky, Alex (1923-1996) (items) (chron.)
- See en.wikipedia.org/wiki/Alex_Kotzky
- Kotzwinkle, William E. (1938- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/kotzwinkle_william
- Koukol, Brian (fl. 2010s-2020s) (items) (chron.)
- See www.briankoukol.com
- Kovic, Peter (fl. 2010s) (items) (chron.)
- See www.beneath-ceaseless-skies.com/authors/page/21/
- Kow, Shih-Li (1968- ) (items) (chron.)
- See en.wikipedia.org/wiki/Shih-Li_Kow
- Kowal, Mary Robinette (née Harrison) (1969- ) (items) (chron.)
- See sf-encyclopedia.com/entry/kowal_mary_robinette
- Kowal, Michael (fl. 2010s) (items) (chron.)
- See kowalkowal.com
- Kowalik, Nelli (fl. 2010s) (items)
- See nellisfamousblends.com
- Koza, Martin (fl. 2010s) (items) (chron.)
- See www.mk01.deviantart.com
- Kozachenko, Alexei (1988- ) (items) (chron.)
- See nameless-designer.deviantart.com
- Kozeniewski, Stephen (fl. 2010s-2020s) (items) (chron.)
- See manuscriptsburn.blogspot.co.uk
- Kozloff, Sarah (1956- ) (items) (chron.)
- See sarahkozloff.com
- Kozlowski, Jan (fl. 2010s) (items)
- See www.jankozlowski.com
- Kraft, David Anthony (1952-2021) (items) (chron.)
- See en.wikipedia.org/wiki/David_Anthony_Kraft
- Kral, Tomas (fl. 2010s) (items) (chron.)
- See tomaskral.cz
- Kramer, Edgar Daniel (1887-1966) (items) (chron.)
- Perhaps from Philadelphia.
- Kramer, Edward E. (1961- ) (items)
- See en.wikipedia.org/wiki/Edward_E._Kramer
- Kramer, Frank (1909-1993) (items) (chron.)
- See pulpartists.com/Kramer.html
- Kramer-Rolls, Dana (1940- ); previously known as Dana Kramer (items) (chron.)
- See www.sf-encyclopedia.com/entry/kramer-rolls_dana
- Kramhøft, Lars (1984- ) (items) (chron.)
- See tegneseriecentralen.dk/project/lars-kramhoeft/
- Krasiński, Count (Napoleon Stanisław Adam Ludwig Zygmunt) (1812-1859) (items)
- See en.wikipedia.org/wiki/Count_Zygmunt_Krasinski
- Krasnostein, Alisa (fl. 2000s-2010s) (items) (chron.)
- See champagneandsocks.com
- Kraus, Daniel (1975- ) (items) (chron.)
- See en.wikipedia.org/wiki/Daniel_Kraus_(author)
- Krauss, Lawrence M(axwell) (1954- ) (items) (chron.)
- See en.wikipedia.org/wiki/Lawrence_M._Krauss
- Kreighbaum, Mark A. (1957?- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/kreighbaum_mark
- Kremer, Warren (1921-2003) (items) (chron.)
- See www.pulpartists.com/Kremer.html
- Krenkel, Roy G(erald, Jr.) (1918-1983) (items) (chron.)
- See pulpartists.com/Krenkel.html
- Krepps, Robert W(ilson) (1919-1980) (items) (chron.)
- See www.sf-encyclopedia.com/entry/krepps_robert_w
- Kress, Nancy (Anne) (1948- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/kress_nancy
- Kressel, Matthew (fl. 2000s-2020s) (items) (chron.)
- See www.matthewkressel.net
- Krick, Irving P. (1906-1966) (items)
- See en.wikipedia.org/wiki/Irving_P._Krick
- Kriesel, Michael (c1963- ) (items) (chron.)
- See www.bookthatpoet.com/poets/krieselm.html
- Krigstein, Bernard (1919-1990) (items) (chron.)
- See en.wikipedia.org/wiki/Bernard_Krigstein
- Krinard, Susan (fl. 1980s-2010s) (items)
- See en.wikipedia.org/wiki/Susan_Krinard
- Kring, Michael K. (1952- ) (items)
- See www.sf-encyclopedia.com/entry/kring_michael_k
- Krinov, E. L.; [i.e., Yevgeny Leonidovich Krinov] (1906-1984) (items)
- See en.wikipedia.org/wiki/Yevgeny_Krinov
- Krisch, Glen R. (fl. 2000s-2010s) (items) (chron.)
- See glenkrisch.wordpress.com
- Krishnan, M. L. (fl. 2020s) (items) (chron.)
- See www.mlkrishnan.com
- Kristjansson, Snorri (1974- ) (items)
- See snorrikristjansson.com
- Kristoff, Jay (1973- ) (items)
- See en.wikipedia.org/wiki/Jay_Kristoff
- Kritzer, Naomi (1973- ) (items) (chron.)
- See sf-encyclopedia.com/entry/kritzer_naomi
- Krizan, Vladimir (fl. 2010s) (items) (chron.)
- See sketchboook.deviantart.com
- Krog, Robert J. (fl. 2010s) (items) (chron.)
- See krogfiction.yolasite.com
- Kröger, Lisa (fl. 2020s) (items)
- See www.lisakroger.com
- Krohn, Jennifer Lynn (fl. 2010s) (items) (chron.)
- See outsideofparnassus.wordpress.com
- Krohn, Leena (1947- ) (items) (chron.)
- See en.wikipedia.org/wiki/Leena_Krohn
- Krolicki, Neil (1976- ) (items) (chron.)
- See www.neilkrolicki.com
- Kroll, Harry Harrison (1888-1967) (items) (chron.)
- Lived as a child in Dyersburg, Tennessee, and teens and young adult in Alabama; school teacher in Alabama though without formal education, then obtained degrees from Peabody College for Teachers in Nashville; taught English composition and literature at University of Tennessee and Lincoln Memorial University; published over 900 pieces of short fiction and essays and 27 novels.
- Krosinsky, Sari (fl. 2010s) (items) (chron.)
- See outerchildpoetry.com
- Krsteski, Damien (fl. 2010s-2020s) (items) (chron.)
- See monochromewish.blogspot.co.uk
- Krusz, Arthur (J.) (1926-2014) (items) (chron.)
- See www.grossepointenews.com/Obituary-41209.114135-Arthur-J-Krusz.html
- Krylov, Ivan A(ndreyevich) (1769-1844) (items) (chron.)
- See en.wikipedia.org/wiki/Ivan_Krylov
- Kube-McDowell, Michael P(aul) (1954- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/kube-mcdowell_michael_p
- Kubert, Adam (1959- ) (items)
- See en.wikipedia.org/wiki/Adam_Kubert
- Kubilius, Walter (1918-1993) (items) (chron.)
- See www.sf-encyclopedia.com/entry/kubilius_walter
- Kubuitsile, Lauri (fl. 2000s-2010s) (items) (chron.)
- See thoughtsfrombotswana.blogspot.com
- Kuhl, Jackson (fl. 1990s-2020s) (items) (chron.)
- See jacksonkuhl.com
- Kuhlhoff, Pete (1903-1972) (items) (chron.)
- See pulpartists.com/Kuhlhoff.html
- Kuhn, Sarah (fl. 2010s-2020s) (items) (chron.)
- See www.alertnerd.com/?page_id=3607
- Kuilboer, Leigh (fl. 2010s) (items) (chron.)
- See www.malicious.com.au
- Kuiper, Gerard P(eter) (1905-1973) (items)
- See en.wikipedia.org/wiki/Gerard_Kuiper
- Kukalis, Romas B(randt) (1956- ) (items)
- See en.wikipedia.org/wiki/Romas_Kukalis
- Kuksi, Kris (1973- ) (items)
- See en.wikipedia.org/wiki/Kris_Kuksi
- Kulkarni, Venkatesh Srinivas (1945-1998) (items) (chron.)
- See en.wikipedia.org/wiki/Venkatesh_Kulkarni
- Kull, George F(rederick?) (1911-1963) (items) (chron.)
- Born in Buffalo, New York; died in Riverside, California.
- Kullis, Zack (fl. 2010s-2020s) (items) (chron.)
- See www.zackkullis.com