- Chiappetta, Michele (fl. 2010s) (stories)
- See thechippermuse.blogspot.co.uk
- Chidwick, Noel (fl. 2010s) (stories)
- See www.noelchidwick.com
- Chien, Diana M. (fl. 2010s) (stories)
- See dianamchien.com
- Chikiamco, Paolo (fl. 2010s) (stories)
- See www.rocketkapre.com
- Child, Alexis (fl. 2000s-2010s) (stories)
- See www.angelfire.com/poetry/alexischild/
- Chilicky, Damian (fl. 2000s) (art)
- See www.artistrising.com/shop/profile/1743/Damian-Chilicky.htm
- Chilson, Rob(ert Dean) (1945- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/chilson_rob
- Chilton, Charles (Frederick William) (1917-2013) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/chilton_charles
- Chimal, Alberto (1970- ) (stories)
- See en.wikipedia.org/wiki/Alberto_Chimal
- Chin, Y. Z. (fl. 2010s) (stories)
- See www.yzchin.com
- Chinn, Noah (fl. 2000s-2010s) (stories)
- See www.noahchinnbooks.com
- Chinthaka, (W. A.) Udara (fl. 2010s) (stories) (art) (assoc.)
- See udarachinthaka.com
- Chipman, De Witt C. (1824-1910) (stories)
- See www.sf-encyclopedia.com/entry/chipman_de_witt_c
- Chiricuzio, Sossity (fl. 2010s) (stories)
- See sossitywrites.tumblr.com
- Chmilenko, Luke (1987- ) (stories) (assoc.)
- See lukechmilenko.com
- Chng, Joyce (fl. 2000s-2010s) (stories) (assoc.)
- See awolfstale.wordpress.com
- Cho, Zen (1986- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Zen_Cho
- Choi, Eric (fl. 1990s-2010s) (stories)
- See www.aerospacewriter.ca
- Chokshi, Roshani (fl. 2010s) (stories) (assoc.)
- See www.roshanichokshi.com
- Cholakov, Yancho (1967- ) (stories)
- See scifiportal.eu/yancho-cholakov-bulgaria
- Cholst, Sheldon, M.D. (1924-2004) (stories) (assoc.)
- See prabook.com/web/person-view.html?profileId=789150
- Chong, Vincent (fl. 2000s-2010s) (stories) (art) (assoc.)
- See www.vincentchong-art.co.uk
- Choo, Waiji (fl. 2010s) (art)
- See www.waijichoo.com
- Chowdhury, Saleha (fl. 2010s) (art)
- See www.salehachowdhury.com
- Chowles, Adam (fl. 2000s) (art)
- See www.artshole.co.uk/adamchowles.htm
- Chown, Marcus (1959- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/chown_marcus
- Christchild, Ravan; pseudonym (1938- ) (stories)
- See www.sf-encyclopedia.com/entry/christchild_ravan
- Christensen, Gitte (1965-2014) (stories)
- See lakesidecircus.com/gchristensen
- Christensen, James (C.) (1942-2017) (stories) (art) (assoc.)
- See en.wikipedia.org/wiki/James_C._Christensen
- Christian, Alexandra (fl. 2010s) (stories)
- See lexxxchristian.wordpress.com
- Christian, Deborah (1956- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/christian_deborah
- Christie, Agatha (Mary Clarissa, née Miller) (1890-1976) (stories)
- See en.wikipedia.org/wiki/Agatha_Christie
- Christopher, Adam (fl. 2010s) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/christopher_adam
- Christopher, John; pseudonym of C. S. Youd (1922-2012) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/christopher_john
- Christopher, Lauryn (fl. 2010s) (stories)
- See www.laurynchristopher.com
- Christy, Ann (fl. 2010s) (stories)
- See www.annchristy.com
- Chrulew, Matthew Nikolai (fl. 2000s-2010s) (stories)
- See www.tabula-rasa.info/Snapshot/MatthewNikolaiChrulew.html
- Chu, Arthur (1984- ) (stories)
- See en.wikipedia.org/wiki/Arthur_Chu
- Chu, John (fl. 2010s) (stories) (assoc.)
- See www.johnchu.net
- Chu, Wesley (1976- ) (stories) (assoc.)
- See www.chuforthought.com
- Chua, Ethan (fl. 2010s) (stories)
- See medium.com/@ezlc327
- Chuma, Thato Angela (fl. 2010s) (stories)
- See badilishapoetry.com/thato-angela-chuma/
- Chun, Mei-Yi (fl. 2010s) (art)
- See meiyichun.blogspot.co.uk
- Churchill, [Sir] Winston (Leonard) S(pencer) (1874-1965) (stories)
- See en.wikipedia.org/wiki/Winston_Churchill
- Chute, Verne (1917-1986) (stories)
- See tellersofweirdtales.blogspot.co.uk/2016/04/verne-chute-1917-1986.html
- Chwedyk, Richard (1955- ) (stories)
- See en.wikipedia.org/wiki/Richard_Chwedyk
- Ciesemier, Kali (fl. 2010s) (art)
- See www.ciesemier.com
- Cigut, Jérôme (fl. 2010s) (stories)
- See jeromecigut.com
- Cilincă, Victor (1958- ) (stories)
- See ratioetrevelatio.com/en/content/18-victor-cilinca
- Cipri, Nino (fl. 2010s) (stories)
- See ninocipri.com
- Ciriello, Dario (fl. 2000s-2010s) (stories) (assoc.)
- See dariospeaks.wordpress.com
- Cisco, Michael (1970- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Michael_Cisco
- Cizak, Alec (fl. 2000s-2010s) (stories)
- See www.nomoralcenter.blogspot.co.uk
- Claesz, Pieter (1597?-1660) (art)
- See en.wikipedia.org/wiki/Pieter_Claesz
- Clagett, John H(enry) (1916- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clagett_john
- Clairval, Gio (fl. 2000s-2010s) (stories)
- See gioclairval.blogspot.co.uk
- Clancy, Doc (fl. 2010s) (stories)
- See docclancy.com
- Clancy, Tom [i.e., Thomas Leo Clancy, Jr.] (1947-2013) (stories) (assoc.)
- See en.wikipedia.org/wiki/Tom_Clancy
- Clarallan, David (Jr.) (1900- ) (stories)
- Traveller. Born in St. Louis, Missouri; lived in Australia.
- Clare, Cassandra; pseudonym of Judith Rumelt (1973- ) (stories)
- See en.wikipedia.org/wiki/Cassandra_Clare
- Clare, Gwendolyn (fl. 2010s) (stories)
- See www.gwendolynclare.com
- Claremont, Chris(topher Simon) (1950- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/claremont_chris
- Clareson, Thomas D(ean) (1926-1993) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clareson_thomas_d
- Claretie, Jules [i.e., Arsène Arnaud Claretie] (1840-1913) (stories)
- See www.sf-encyclopedia.com/entry/claretie_jules
- Clark, Andy (fl. 2000s-2010s) (stories)
- See workshopshed.com
- Clark, C. L. (fl. 2010s) (stories)
- See adarknessrevealed.com
- Clark, Finn(ian) (1990-2015) (stories) (art) (assoc.)
- See www.standard.co.uk/news/london/body-found-in-search-for-vulnerable-missing-londoner-finnian-clark-a3131796.html
- Clark, Lawrence Gordon (fl. 1970s-2010s) (stories)
- See en.wikipedia.org/wiki/Lawrence_Gordon_Clark
- Clark, P(henderson) Djèlí (1971- ) (stories) (assoc.)
- See www.fantasticfiction.com/c/p-djeli-clark/
- Clark, Stuart (fl. 1990s-2010s) (stories)
- See en.wikipedia.org/wiki/Stuart_Clark_(author)
- Clark, Tom (1941-2018) (art)
- See en.wikipedia.org/wiki/Tom_Clark_(poet)
- Clark, Valma (1894-1953) (stories)
- See tellersofweirdtales.blogspot.co.uk/2014/10/valma-clark-1894-1953.html
- Clark, [Sir] W(ilfrid) E(dward) Le Gros (1895-1971) (stories) (assoc.)
- See en.wikipedia.org/wiki/Wilfrid_Le_Gros_Clark
- Clarke, A(ubrey) Vincent (1922-1998) (stories)
- See www.sf-encyclopedia.com/entry/clarke_a_v
- Clarke, Arthur C(harles) (1917-2008) (stories) (assoc.)
- See en.wikipedia.org/wiki/Arthur_C._Clarke
- Clarke, (John) Emery (1911-1990) (art)
- See pulpartists.com/Clarke.html
- Clarke, Finn (fl. 2010s) (stories)
- See www.finnclarke.com
- Clarke, I(gnatius) F(rederic) Ian (1918-2009) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clarke_i_f
- Clarke, J(ames) Brian (1928- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clarke_j_brian
- Clarke, Liz (fl. 2000s) (stories) (art) (assoc.)
- See www.lizclarke.co.uk
- Clarke, Marcus (Andrew Hislop) (1846-1881) (stories) (assoc.)
- See en.wikipedia.org/wiki/Marcus_Clarke
- Clarke, Neil (1966- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Neil_Clarke_(editor)
- Clason, Clyde B(urt) (1903-1987) (stories) (assoc.)
- Born in Denver; an advertising copywriter in Chicago, trade paper editor, and public relations manager.
- Claudy, Carl H(arry) (1879-1957) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/claudy_carl_h
- Clausen, Carl (1885-1954) (stories)
- Born in Denmark; he was a sailor, miner, pearl-fisher, life insurance salesman, window cleaner, lumber jack, copra trader and opera singer before turning to writing; came to the U.S. in 1906 knowing practically no English; died in Delaware Water Gap, Pennsylvania.
- Clausen, Daniel (fl. 2000s-2010s) (stories)
- See ghostsofnagasaki.com/
- Clauser, Grant (fl. 2010s) (stories)
- See uniambic.com
- Clavelli, Tony (fl. 2010s) (stories)
- See www.tonyclavelli.com
- Claxton, Hasani (fl. 2010s) (art)
- See www.hasaniclaxton.com
- Clay, Kat (fl. 2010s) (stories)
- See www.katclay.com
- Claybourne, Z. Z.; pseudonym of C. E. Young (fl. 2010s) (stories)
- See writeonrighton.com
- Clayton, (Patricia) Jo (1939-1998) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clayton_jo
- Cleator, P(hilip) E(llaby) (1908-1994) (stories) (assoc.)
- See www.bis-space.com/what-we-do/the-british-interplanetary-society/history/philip-e-cleator
- Clee, Mona A(nn) (1952- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clee_mona_a
- Clegg, Jaleta (fl. 2000s-2010s) (stories)
- See jaletaclegg.wix.com/jaletacleggauthor
- Clemenceau, Georges (Eugene Benjamin) (1841-1929) (stories)
- See en.wikipedia.org/wiki/Georges_Clemenceau
- Clement, Hal; pseudonym of Harry Clement Stubbs (1922-2003) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clement_hal
- Clements, David L. (fl. 2000s-2010s) (stories)
- See davecl.wordpress.com
- Clemons, Jack (fl. 1980s-2010s) (stories)
- See en.wikipedia.org/wiki/Jack_Clemons
- Cleto, Sara (fl. 2010s) (stories)
- See english.osu.edu/people/cleto.2
- Cleve, John; pseudonym of Andrew J. Offutt (1934-2013) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/cleve_john
- Clickard, C(arrie) L. (fl. 2010s) (stories)
- See www.clclickard.com
- Cliff, Tony (fl. 2010s) (stories)
- See tonycliff.com
- Clifton, Mark (Irvin) (1906-1963) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clifton_mark