- Clinch, Jon (fl. 1980s-2000s) (stories)
- See www.jonclinch.com
- Cline, Eric (fl. 2010s) (stories)
- See cruelcline.blogspot.com
- Cline, Ernest (1972- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cline_ernest
- Cline, Leonard (Lanson, Jr.) (1893-1929) (stories)
- Born in Bay City, Michigan; died in New York City; reporter for the Detroit Times and Baltimore Sun; playwright and poet; wrote the novel listed while serving a year in prison for manslaughter; published pulp magazine stories under the pseudonym Alan Forsyth.
- Clines, Peter (fl. 2000s-2010s) (stories) (assoc.)
- See permutedpress.wikia.com/wiki/Peter_Clines
- Clingerman, Mildred (née McElroy) (1918- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clingerman_mildred
- Clink, Carolyn (fl. 1990s-2010s) (stories)
- See sfwriter.com/carolyn.htm
- Clink, David (fl. 1990s-2010s) (stories)
- See poetrymachine.com
- Clinton, Ed(win) M., Jr. (1926-2006) (stories)
- Born in Los Angeles, CA; died in Livingston, Wyoming.
- Clitheroe, Heather (fl. 2000s-2010s) (stories) (assoc.)
- See www.lectio.ca
- Clough, B(renda) W(ang) (1955- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clough_brenda_w
- Cloukey, Charles; pseudonym of Charles Cloutier (1912-1931) (stories)
- See www.sf-encyclopedia.com/entry/cloukey_charles
- Clowes, Carolyn (MacDonald) (1946- ) (stories)
- See www.sf-encyclopedia.com/entry/clowes_carolyn
- Cluley, Ray (fl. 2000s-2010s) (stories) (assoc.)
- See probablymonsters.wordpress.com
- Clute, John (Frederick) (1940- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clute_john
- Clute, Judith (1942- ) (stories) (art) (assoc.)
- See www.judithclute.co.uk
- Coate, Steve (fl. 2010s) (stories)
- See coaterack.blogspot.co.uk
- Coates, Deborah (fl. 1990s-2010s) (stories)
- See en.wikipedia.org/wiki/Deborah_Coates
- Coates, Robert M(yron) (1897-1973) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/coates_robert_m
- Cobb, Irvin S(hrewsbury) (1876-1944) (stories) (assoc.)
- See en.wikipedia.org/wiki/Irvin_S._Cobb
- Cobb, Ron (1937- ) (stories) (art)
- See en.wikipedia.org/wiki/Ron_Cobb
- Coble, David ({c}1977- ) (stories)
- See www.writers.net/writers/24567
- Coblentz, Stanton A(rthur) (1896-1982) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/coblentz_stanton_a
- Cobley, Michael (1959- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cobley_michael
- Cochran, Joshua Daniel (fl. 2010s) (stories)
- See www.goodreads.com/author/show/931540.Joshua_Daniel_Cochran
- Cochran, Molly (1949- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cochran_molly
- Cochrane, William E(ugene) (1926-1993) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cochrane_william_e
- Cockburn, (Francis) Claud (1904-1981) (stories)
- Father of Sarah Cockburn.
- Cockburn, D. J. (fl. 2000s-2010s) (stories)
- See cockburndj.wordpress.com
- Cockburn, Paul F. (fl. 1980s-2010s) (stories)
- See www.paulfcockburnjournalist.com
- Cockburn, Sarah (Caudwell) (1939-2000) (stories)
- Lawyer who worked for Lloyds Bank in London; daughter of (Francis) Claud Cockburn.
- Cockrell, (Nancy) Amanda (1948- ) (stories)
- Daughter of Frank and Marian Cockrell.
- Cockrell, Frank [i.e., Francis M. Cockrell, III] (1906-1987) (stories)
- Father of Amanda Cockrell.
- Cockrell, Marian (née Brown) (1909-1999) (stories)
- Mother of Amanda Cockrell.
- Cockroft, W(ilfred) P. (1909-1992) (stories)
- See www.sf-encyclopedia.com/entry/cockroft_w_p
- Codjoe, Ama (fl. 2010s) (stories)
- See thefeministwire.com/2011/10/featured-poet-ama-cudjoe
- Coe, David B. (1963- ) (stories)
- See en.wikipedia.org/wiki/David_B._Coe
- Coelho, Mário de Seabra (1990- ) (stories)
- See divergencia.pt/autores-mario-de-seabra-coelho
- Coggan, Helena (fl. 2010s) (stories) (assoc.)
- See www.goodreads.com/author/show/9884756.Helena_Coggan
- Coggins, Jack (Banham) (1911- ) (stories) (art) (assoc.)
- Born in London, England; lives in Pennsylvania.
- Cogman, Genevieve (fl. 2000s-2010s) (stories) (assoc.)
- See www.grcogman.com
- Cognet-Ponomareff, Pierre (fl. 2010s) (art)
- See peeshan.deviantart.com
- Cogswell, Theodore R(ose) (1918-1987) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cogswell_theodore_r
- Cohen, David X. [i.e., David Samuel Cohen] (1966- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/David_X._Cohen
- Cohen, Douglas (Elliott) (fl. 2000s-2010s) (stories)
- See douglascohen.livejournal.com
- Cohen, Jack (1933-2019) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cohen_jack
- Cohen, Larry [i.e., Lawrence G. Cohen] (1941-2019) (stories) (assoc.)
- See www.imdb.com/name/nm0169540/bio
- Cohen, Michael Harris (fl. 2010s) (stories)
- See www.indigoinkpress.org/authors/michael-harris-cohen/
- Cohen, Morton N(orton) (1921-2017) (stories) (assoc.)
- See en.wikipedia.org/wiki/Morton_N._Cohen
- Cohn, Edith (fl. 2010s) (stories)
- See edithcohn.wordpress.com
- Cohn, Victor (1919-2000) (stories) (assoc.)
- See paleofuture.gizmodo.com/victor-cohn-1919-2000-512626538
- Coila, Bridget (fl. 2000s-2010s) (stories)
- See www.bridgetcoila.com
- Cokinos, Christopher (1963- ) (stories)
- See en.wikipedia.org/wiki/Christopher_Cokinos
- Colander, Valerie Nieman (1955- ) (stories)
- See www.sf-encyclopedia.com/entry/colander_valerie_nieman
- Colangelo, Michael R. (fl. 2000s-2010s) (stories)
- See michaelrcolangelo.wordpress.com
- Colborn, Matt (fl. 2000s-2010s) (stories) (art)
- See mattcolbornwriter.blogspot.co.uk
- Colbron, Grace Isabel (1869-1948) (stories)
- Born in New York City; stage actress; reader of European language books for New York publishers, theatrical managers and play-brokers; lecturer on economic and literary subjects; translator from German and Scandinavian languages.
- Coldiron, Katharine (fl. 2000s-2010s) (stories)
- See www.kcoldiron.com
- Cole, Adrian (Christopher Synnot) (1949- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cole_adrian
- Cole, Allan (1943-2019) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cole_allan
- Cole, Burt; pseudonym of Thomas Dixon (1930- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cole_burt
- Cole, Cyrus (fl. 1890s) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cole_cyrus
- Cole, Everett B. (1910-2001) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cole_everett_b
- Cole, Geoffrey W. (fl. 2000s-2010s) (stories)
- See www.geoffreywcole.com
- Cole, Ira A. (1883-1973) (stories)
- See www.sf-encyclopedia.com/entry/cole_ira_a
- Cole, Isabel F(argo) (fl. 1980s-2010s) (stories)
- See pen.org/user/isabel-fargo-cole/
- Cole, James (fl. 1980s-2000s) (stories) (assoc.)
- See www.stephenkingshortmovies.com/interviews/james-cole-january-22-2005/
- Cole, Jay (fl. 2010s) (stories)
- See cils.wvu.edu/faculty-staff/adjunct/jay-cole
- Cole, Jedd (fl. 2010s) (stories)
- See electricdidact.weebly.com
- Cole, Leonard B(randt) (1918-1995) (stories) (assoc.)
- See en.wikipedia.org/wiki/L._B._Cole
- Cole, Myke (fl. 2000s-2010s) (stories) (assoc.)
- See mykecole.com
- Cole, Scott (fl. 2010s) (stories)
- See www.13visions.com
- Cole, Stephen (1971- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Stephen_Cole_(writer)
- Colebatch, Hal (Gibson Pateshall) (1945- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/colebatch_hal
- Coleman, David (fl. 2010s) (stories)
- See davidcolemanwords.wordpress.com
- Coleman, Emma (fl. 2010s) (stories)
- See www.smashwords.com/profile/view/EmmaColeman
- Coleman, James Nelson (1940-1997) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/coleman_james_nelson
- Coleman, Keith (fl. 1990s-2010s) (stories)
- See angusfolklore.blogspot.co.uk
- Coleman, Liz (fl. 2010s) (stories)
- See www.beneath-ceaseless-skies.com/authors/page/17/
- Coleridge, Samuel Taylor (1772-1834) (stories)
- See en.wikipedia.org/wiki/Samuel_Taylor_Coleridge
- Coles, Rachel (fl. 2010s) (stories)
- See rachelcoles.wordpress.com
- Colfer, Eoin (1965- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/colfer_eoin
- Colin, Galen C(yril) (1890-1973) (stories)
- See tellersofweirdtales.blogspot.co.uk/2014/10/galen-c-colin-1890-1973.html
- Colladay, Morrison F. (fl. 1920s-1950s) (stories)
- See www.sf-encyclopedia.com/entry/colladay_morrison
- Collas, Phil [i.e., Felix Edward Collas] (1907-1989) (stories)
- See www.sf-encyclopedia.com/entry/collas_phil
- Collier, John (Henry Noyes) (1901-1980) (stories) (assoc.)
- See en.wikipedia.org/wiki/John_Collier_(writer)
- Collier, (Edward) Tarleton (1888?-1970) (stories)
- See tellersofweirdtales.blogspot.co.uk/2014/04/tarleton-collier-1888-or-1889-1970.html
- Collings, Michael R(obert) (1947- ) (stories)
- See www.sf-encyclopedia.com/entry/collings_michael_r
- Collins, Andrew (fl. 1990s-2010s) (stories) (assoc.)
- See www.andrewcollins.com
- Collins, Brigid [i.e., Brigid Collins Kendall] (fl. 2010s) (stories)
- See backwrites.wordpress.com
- Collins, Erroll; pseudonym of E. E. Redknap (1906-1991) (stories)
- See www.sf-encyclopedia.com/entry/collins_erroll
- Collins, Gilbert (Henry) (1890-1960) (stories)
- See www.sf-encyclopedia.com/entry/collins_gilbert
- Collins, Logan Thrasher (fl. 2010s) (stories)
- See logancollinsblog.com
- Collins, Max Allan (Jr.) (1948- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/collins_max_allan
- Collins, Paul (A.) (1954- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/collins_paul
- Collins, Robert L. (1965- ) (stories)
- See robertlcollins.blogspot.co.uk
- Collins, Ron (fl. 1990s-2010s) (stories) (assoc.)
- See typosphere.com
- Collins, Ryder (fl. 2000s-2010s) (stories)
- See bignortherngirlgoes.blogspot.co.uk
- Collins, Suzanne (1962- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/collins_suzanne
- Collins, Wenmimareba Klobah ({c}1998- ) (stories)
- See thedarkmagazine.com/authors/wenmimareba-klobah-collins/
- Collins, (William) Wilkie (1824-1889) (stories)
- See en.wikipedia.org/wiki/Wilkie_Collins