- Clement of Alexandria [i.e., Titus Flavius Clemens] ({c}150-{c}215) (stories)
- See en.wikipedia.org/wiki/Clement_of_Alexandria
- Clement, Benj(amin) (1785-1835) (stories)
- See blog.adkinshistory.com/mansfield-park-200-years
- Clement, Ernest C. (1908-1985) (stories)
- Former lead writer for Modern Romance.
- Clement, Hal; pseudonym of Harry Clement Stubbs (1922-2003) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clement_hal
- Clements, Calvin (Joseph, Sr.) (1915-1997) (stories) (assoc.)
- Writer of screenplays; born in Jersey City, New Jersey; died in Tarzana, California.
- Clements, Colin (Campbell) (1894-1948) (stories)
- Born in Omaha, Nebraska; educated at Harvard University.
- Clements, David L. (fl. 2000s-2010s) (stories)
- See davecl.wordpress.com
- Clements, Jonathan (1971- ) (stories)
- See www.sf-encyclopedia.com/entry/clements_jonathan
- Clemons, Jack (fl. 1980s-2010s) (stories)
- See en.wikipedia.org/wiki/Jack_Clemons
- Clephane, Elizabeth Cecilia (Douglas) (1830-1869) (stories)
- See en.wikipedia.org/wiki/Elizabeth_C._Clephane
- Clerke, E(llen) M(ary) (1840-1906) (stories)
- See en.wikipedia.org/wiki/Ellen_Mary_Clerke
- 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
- Cleveland, Frederick Albert (1865-1946) (stories)
- Born in Sterling, Illinois. Graduated 1891 from DePauw University; 1919 professor of Citizenship at Boston University.
- Clews, Henry (1834-1923) (stories)
- See en.wikipedia.org/wiki/Henry_Clews
- Clews, Henry, Jr. (1876-1937) (stories)
- See en.wikipedia.org/wiki/Henry_Clews_Jr.
- Clickard, C(arrie) L. (fl. 2010s) (stories)
- See www.clclickard.com
- Cliff, Tony (fl. 2010s) (stories)
- See tonycliff.com
- Clifford, Aoife (fl. 2010s) (stories)
- See www.aoifeclifford.com
- Clifford, Charles L(ewis) (1890-1991) (stories) (assoc.)
- Born in Boston in 1890, Clifford rose to the rank of Colonel in the U.S. Army becoming Commanding Officer of the 2nd Filipino Infantry Regiment in 1942. He wrote several books and stories about the Philippines including The Real Glory (1937) which was made into a film starring Gary Cooper & David Niven in 1939. The film seems also to have been based in part on Jungle Patrol (1938) by Vic Hurley which had led some to suggest that Clifford was actually a pseudonym for Hurley. Clifford died in New Jersey in 1991.
- Clifford, [Sir] Hugh (Charles) (1866-1941) (stories)
- See en.wikipedia.org/wiki/Hugh_Clifford
- Clifford, Joe (fl. 2010s) (stories) (assoc.)
- See www.joeclifford.com
- Clifford, John (1836-1923) (stories) (assoc.)
- See en.wikipedia.org/wiki/John_Clifford_(minister)
- Clifford, Sigerson (1913-1985) (stories)
- See en.wikipedia.org/wiki/Sigerson_Clifford
- Clifford, Mrs. W(illiam) K(ingdon) [i.e., Lucy Lane Clifford; born Sophia Lucy Jane Lane] (1846-1929) (stories) (assoc.)
- See en.wikipedia.org/wiki/Lucy_Clifford
- Clift, Denison (Halley) (1885-1961) (stories) (assoc.)
- Born in San Francisco; graduate of Stanford University; Hollywood writer and director; author of novels, ss, and plays.
- Clifton, Mark (Irvin) (1906-1963) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clifton_mark
- Clinch, George (1860-1921) (stories)
- See en.wikisource.org/wiki/The_Times/1921/Obituary/George_Clinch
- Clinch, John (fl. 2010s) (stories)
- Research student in British cinema at Queens University Belfast.
- Clinch, Jon (fl. 1980s-2000s) (stories)
- See www.jonclinch.com
- Cline, C(harles) Terry (Jr.) (1935-2013) (stories)
- See www.sf-encyclopedia.com/entry/cline_c_terry_jr
- Cline, Emma ({c}1989- ) (stories)
- See en.wikipedia.org/wiki/Emma_Cline
- 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) (assoc.)
- 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) (art)
- See sfwriter.com/carolyn.htm
- Clink, David (fl. 1990s-2010s) (stories)
- See poetrymachine.com
- Clinton, Daniel Joseph (1899-1993) (stories)
- Born in Pittsburgh, Pennsylvania; died in Santa Barbara, California.
- 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
- Clive, Caroline (Wigley) [Mrs. Archer Clive] (1801-1873) (stories)
- See www.victoriansecrets.co.uk/victorian-fiction-research-guides/caroline-clive/
- Clodd, Edward (1840-1930) (stories)
- See en.wikipedia.org/wiki/Edward_Clodd
- Cloete, (Edward Fairly) Stuart (Graham) (1897-1976) (stories) (assoc.)
- See en.wikipedia.org/wiki/Stuart_Cloete
- Clor, Chris (fl. 2010s) (art)
- See www.clorimages.com/Artist.asp?ArtistID=38203&Akey=KADJ6V2J
- Close, Robert (Shaw) (1903-1995) (stories)
- Born in Melbourne, Australia.
- Closson, W(illiam) B(axter Palmer) (1848-1926) (stories) (art)
- See en.wikipedia.org/wiki/William_Closson
- Cloud, (C.) Carey (1899-1984) (art)
- See www.askart.com/askart/c/carey_c_carey_cloud/carey_c_carey_cloud.aspx
- Clough, Arthur Hugh (1819-1861) (stories) (assoc.)
- See en.wikipedia.org/wiki/Arthur_Hugh_Clough
- 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
- Clouston, J(oseph) Storer (1870-1944) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/clouston_j_storer
- Clowes, Carolyn (MacDonald) (1946- ) (stories)
- See www.sf-encyclopedia.com/entry/clowes_carolyn
- Clowes, [Sir] W(illiam) Laird (1856-1905) (stories)
- See www.sf-encyclopedia.com/entry/clowes_w_laird
- 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
- Clutton-Brock, A(rthur) (1868-1924) (stories)
- See en.wikipedia.org/wiki/Arthur_Clutton-Brock
- Clymer, John (Ford) (1907-1989) (stories) (art) (assoc.)
- See pulpartists.com/Clymer.html
- Coad, Rich (fl. 1980s-2010s) (stories)
- See fancyclopedia.org/rich-coad
- Coate, Steve (fl. 2010s) (stories)
- See coaterack.blogspot.co.uk
- Coates, Archie Austin (1891-?) (stories)
- Ohio writer.
- Coates, Austin (1922-1997) (stories)
- See en.wikipedia.org/wiki/Austin_Coates
- Coates, Deborah (fl. 1990s-2010s) (stories)
- See en.wikipedia.org/wiki/Deborah_Coates
- Coates, Florence (Van Leer) Earle (Nicholson) (1850-1927) (stories)
- See en.wikipedia.org/wiki/Florence_Earle_Coates
- Coates, Grace Stone [Mrs. Henderson Coates] (1881-1976) (stories)
- See en.wikipedia.org/wiki/Grace_Stone_Coates
- Coates, Robert M(yron) (1897-1973) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/coates_robert_m
- Coates, Ta-Nehisi (Paul) (1975- ) (stories)
- See en.wikipedia.org/wiki/Ta-Nehisi_Coates
- Coatsworth, Elizabeth Jane (1893-1986) (stories) (assoc.)
- Born in Buffalo, N.Y.
- Cobb, (Geoffrey) Belton (1892-1971) (stories)
- Son of Thomas Cobb.
- Cobb, Cleo Frisbie (1925-2011) (stories)
- See www.legacy.com/obituaries/statesman/obituary.aspx?page=lifestory&pid=155413129
- Cobb, Frank Irving (1869-1923) (stories) (assoc.)
- See en.wikipedia.org/wiki/Frank_I._Cobb
- Cobb, Irvin S(hrewsbury) (1876-1944) (stories) (assoc.)
- See en.wikipedia.org/wiki/Irvin_S._Cobb
- Cobb, Ivo Geikie (1887-1953) (stories)
- A doctor.
- Cobb, James H(arvey) (1953- ) (stories)
- See www.sf-encyclopedia.com/entry/cobb_james_h
- Cobb, Ron (1937- ) (stories) (art)
- See en.wikipedia.org/wiki/Ron_Cobb
- Cobb, Russell (fl. 2000s-2010s) (art)
- See russellcobb.com
- Cobb, Sylvanus, Jr. (1823-1887) (stories)
- Born in Waterville, Maine.
- Cobb, Thomas (1854-1932) (stories)
- Born and lived in London; left school at age 12 and worked for some 20 years in his fathers tallowing business; then started writing in 1887; died in Hampstead, London, England. Father of Belton Cobb.
- Cobb, Ty(rus Raymond) (1886-1961) (stories) (assoc.)
- See en.wikipedia.org/wiki/Ty_Cobb
- Cobb, Weldon J. (1849-1922) (stories)
- See www.sf-encyclopedia.com/entry/cobb_weldon_j
- Cobban, J(ames) MacLaren (1849-1903) (stories)
- See www.sf-encyclopedia.com/entry/cobban_j_maclaren
- Cobbett, William (1763-1835) (stories) (assoc.)
- See en.wikipedia.org/wiki/William_Cobbett
- Cobbledick, Gordon (1898-1969) (stories)
- See en.wikipedia.org/wiki/Gordon_Cobbledick
- Cobbold, Richard (1797-1877) (stories)
- See en.wikipedia.org/wiki/Richard_Cobbold
- Cober, Alan E. (1935-1998) (art)
- See en.wikipedia.org/wiki/Alan_E._Cober
- Cobham, [Sir] Alan J(ohn) (1894-1973) (stories)
- See en.wikipedia.org/wiki/Alan_Cobham
- Coble, David ({c}1977- ) (stories)
- See www.writers.net/writers/24567
- Coblentz, Catherine Cate (1897-1951) (stories)
- See en.wikipedia.org/wiki/Catherine_Cate_Coblentz
- 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
- Coburn, Alvin Langdon (1882-1966) (stories) (art) (assoc.)
- See en.wikipedia.org/wiki/Alvin_Langdon_Coburn
- Coburn, Wallace D. (1872-1954) (stories)
- See www.imdb.com/name/nm0168029/bio
- Coburn, Walter J(ohn) (1889-1971) (stories) (assoc.)
- Writer of western novels and short stories. Born in White Sulphur Springs, Montana Territory; lived in Arizona.
- Cochet, Henri (Jean) (1901-1987) (stories) (assoc.)
- See en.wikipedia.org/wiki/Henri_Cochet
- Cochran, Charlie (fl. 2010s) (stories)
- See www.charliecochrane.co.uk
- Cochran, Jacqueline (1906-1980) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jacqueline_Cochran