- Manley, Mark (fl. 2010s) (art)
- See markmanley.co.uk
- Manley, William Ford (1896-1954) (stories)
- Playwright involved in radio and television; died in Madison, New Hampshire.
- Manlove, C(olin) N(icholas) (1942- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/manlove_c_n
- Mann, Catherine (1943- ) (stories)
- See en.wikipedia.org/wiki/Catherine_Mann
- Mann, Cathleen (S.) (1896-1959) (art)
- See www.askart.com/artist/cathleen_s_mann/11051680/cathleen_s_mann.aspx?stm=cathleen
- Mann, [Sir] Donald (Daniel) (1853-1934) (stories) (assoc.)
- See en.wikipedia.org/wiki/Donald_Mann
- Mann, E(dward) B(everly) (1902- ) (stories)
- Author of westerns, editor. Born in Hollis, Kansas.
- Mann, E(rnest) L(eslie) (1900-1989) (stories)
- Born in Banbury, England; died in Ditchling, Sussex, England; served in the Royal Flying Corps in the British Expeditionary Force (WWI); had a 30-year teaching career; wrote short stories for magazines.
- Mann, George (1978- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mann_george
- Mann, Harrington (1864-1937) (art)
- See en.wikipedia.org/wiki/Harrington_Mann
- Mann, Klaus (Heinrich Thomas) (1906-1949) (stories)
- See en.wikipedia.org/wiki/Klaus_Mann
- Mann, Les(lie) (1892-1962) (stories) (assoc.)
- See en.wikipedia.org/wiki/Leslie_Mann_(athlete)
- Mann, Louis (1865-1931) (stories)
- See en.wikipedia.org/wiki/Louis_Mann
- Mann, Mary E(lizabeth Rackham) (1848-1929) (stories)
- Born in Norwich; lived most of her life in Norfolk.
- Mann, Peggy [i.e., Peggy Mann Houlton] (1925-1990) (stories)
- See articles.chicagotribune.com/1990-07-22/news/9003010832_1_drug-prevention-parents-for-drug-free-youth-tobacco-and-marijuana
- Mann, (Anthony) Phillip (1942- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mann_phillip
- Manners, David X. (1912-2007) (stories)
- According to his son Tim he wasnt actually David X. Manners but was David X Manners as the X was his whole name and not an initial.
- Manners, J(ohn) Hartley (1870-1928) (stories) (assoc.)
- See en.wikipedia.org/wiki/J._Hartley_Manners
- Manners, William [born William Rosenberg] (1907-1994) (stories)
- Born in Butler, Pennsylvania.
- Mannes, Marya (1904-1990) (stories)
- See www.sf-encyclopedia.com/entry/mannes_marya
- Mannetti, Lisa (fl. 2000s-2010s) (stories) (assoc.)
- See www.lisamannetti.com/about.htm
- Manning, Arthur (Milton) (1918-2008) (stories)
- Press Secretary to New Zealand Prime Minister Keith Holyoake; New Zealand tourist and publicity man in Sydney.
- Manning, Dan (W.) (fl. 2000s-2010s) (stories)
- See www.danmanning.com
- Manning, [Cardinal] Henry Edward (1808-1892) (stories) (assoc.)
- See en.wikipedia.org/wiki/Henry_Edward_Manning
- Manning, Laurence (Edward) (1899-1972) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/manning_laurence
- Manning, Mary (1906-2000) (stories)
- Born in Dublin.
- Manning, Robert (Joseph) (1919-2012) (stories)
- See en.wikipedia.org/wiki/Robert_Manning_(journalist)
- Manning, Timothy; pseudonym of Tom Moran (fl. 2000s-2010s) (stories)
- See www.filmfodder.com/fearfodder/archives/2008/07/just_who_is_black_ink_horrors.shtml
- Manning-Foster, A. E. (1874-1939) (stories)
- See www.ebu.co.uk/biographies/a-e-manning-foster
- Mannix, Daniel P(ratt, IV) (1911-1997) (stories)
- Author of animal stories for children. Not to be confused with admiral Daniel Mannix (1878-1957) or the Australian archbishop of the same name (1864-1963).
- Mannone, John C. (fl. 2000s-2010s) (stories)
- See jcmannone.wordpress.com
- Manns, [Sir] August (Friedrich) (1825-1907) (stories) (assoc.)
- See en.wikipedia.org/wiki/August_Manns
- Mano, D(avid) Keith (1942-2016) (stories)
- See www.sf-encyclopedia.com/entry/mano_d_keith
- Mansell, Jill (fl. 1990s-2010s) (stories) (assoc.)
- See jillmansell.co.uk
- Manser, Martin (1952- ) (stories) (assoc.)
- See martinmanser.co.uk
- Mansfield, Charles H(erbert) (1864-1930) (stories)
- See bearalley.blogspot.co.uk/2007/08/charles-h-mansfield.html
- Mansfield, Jayne [born Vera Jayne Palmer] (1933-1967) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jayne_Mansfield
- Mansfield, Peter (1942- ) (stories)
- See fancyclopedia.org/peter-mansfield
- Mansford, Charles J(ohn Jodrell) (1863-1943) (stories)
- See www.sf-encyclopedia.com/entry/mansford_charles_j
- Manso, Leo [born Leo Jacob Mansowitz] (1914-1993) (art)
- See www.nytimes.com/1993/02/09/arts/leo-manso-dies-collagist-painter-and-teacher-78.html
- Manson, Charles (Milles) (1934- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Charles_Manson
- Manson, Harold (1918- ) (stories)
- Journalist.
- Mansouri, S(hawn) H. (fl. 2010s) (stories)
- See shmansouriblog.wordpress.com
- Mantchev, Lisa (fl. 2000s-2010s) (stories)
- See en.wikipedia.org/wiki/Lisa_Mantchev
- Mantegazza, Paolo (1831-1910) (stories)
- See en.wikipedia.org/wiki/Paolo_Mantegazza
- Manteufel, M. B.; pseudonym (fl. 2010s) (stories)
- See www.smashwords.com/profile/view/mbmanteufel
- Mantle, Beatrice (A.) ({c}1878-1963) (stories)
- Born in England; died in San Joaquin, California.
- Mantley, John (Truman) (1920-2003) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mantley_john
- Manto, Saadat Hasan (1912-1955) (stories)
- See en.wikipedia.org/wiki/Saadat_Hasan_Manto
- Manuel, Derek (fl. 2010s) (stories) (assoc.)
- See www.dmthewriter.com
- Manukyan, Alexandra (fl. 1990s-2010s) (art)
- See www.alexandramanukyan.com
- Manusos, Lyndsie (fl. 2010s) (stories)
- See lyndsiekay.wordpress.com
- Manvell, (Arnold) Roger (1909-1987) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/manvell_roger
- Manville, Helen A(delia, née Wood) (1839-1912) (stories)
- See en.wikipedia.org/wiki/Helen_Adelia_Manville
- Manwaring, Chick (fl. 1950s) (stories)
- Born in Utah.
- Manyukhin, Vladimir (fl. 2010s) (art)
- See mvn78.artstation.com
- Manzetti, Alessandro (fl. 2010s) (stories)
- See www.alessandromanzetti.net
- Manzieri, Maurizio (fl. 1990s-2010s) (stories) (art) (assoc.)
- See www.manzieri.com
- Manzoni, Alessandro (Francesco Tommaso) (1785-1873) (stories)
- See en.wikipedia.org/wiki/Alessandro_Manzoni
- Mar, Valeria Rodríguez (fl. 2010s) (stories)
- See valeriarodriguezmar.blogspot.co.uk
- Maracotta, Lindsay (1948- ) (stories)
- See en.wikipedia.org/wiki/Lindsay_Maracotta
- Maranville, Rabbit [i.e., Walter James Vincent Maranville] (1891-1954) (stories)
- Record-holding baseball player. Born in Springfield, Massachusetts; died in New York City.
- Marat, Jean-Paul (1743-1793) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jean-Paul_Marat
- Marbais, Amanda (fl. 2010s) (stories)
- See www.joylandmagazine.com/authors/amanda-marbais
- Marbot, Jean Baptiste (Antoine Marcellin) (1782-1854) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jean_Baptiste_Antoine_Marcellin_de_Marbot
- Marceau, Félicien; pseudonym of Louis Carette (1913-2012) (stories) (assoc.)
- See en.wikipedia.org/wiki/F%C3%A9licien_Marceau
- March-Russell, Paul (fl. 2010s) (stories) (assoc.)
- See www.kent.ac.uk/secl/complit/staff/march-russell.html
- Marchand, Joy (fl. 2000s) (stories)
- See www.joymarchand.com
- Marchand, Richard (fl. 2000s) (art)
- See richardmarchand.tumblr.com
- Marchant, Bessie [i.e., Elizabeth Marchant Comfort] (1862-1941) (stories)
- Born in Petham, Kent; educated privately; wrote more than 150 books for young people.
- Marche, Stephen (1976- ) (stories)
- See en.wikipedia.org/wiki/Stephen_Marche
- Marchese, Anthony (fl. 2010s) (stories)
- See alphaverse.blogspot.co.uk
- Marchetti, Lou(is J.) (1920-1992) (art)
- See loumarchetti.com
- Marchioni, Mark [i.e., Marco Enrico Marchioni] (1901-1987) (art)
- See pulpartists.com/Marchioni.html
- Marchmont, Arthur W(illiam) (1852-1923) (stories) (assoc.)
- Born in Middlesex; journalist and editor.
- Marcin, Max [born Max Schlamjack] (1879-1948) (stories)
- See en.wikipedia.org/wiki/Max_Marcin
- Marcinek, Jaroslaw (fl. 2010s) (art)
- See yar0.deviantart.com
- Marco, John (fl. 1990s-2010s) (stories) (assoc.)
- See en.wikipedia.org/wiki/John_Marco
- Marconette, Walter E. (fl. 1930s-1950s) (stories) (art)
- See fancyclopedia.wikidot.com/walter-e-marconette
- Marcus, Carl (Edward) (1921-1998) (stories)
- Born in Cody, Wyoming; served in army military intelligence in WWII; private investigator; died in Hemet, California.
- Marcus, Daniel (L.) (fl. 1990s-2010s) (stories)
- See en.wikipedia.org/wiki/Daniel_Marcus
- Marcus, Daryl (fl. 2010s) (stories)
- See darylmarcus.wordpress.com
- Marcus, Greil (1945- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Greil_Marcus
- Marcus, Ken (1946- ) (stories)
- See en.wikipedia.org/wiki/Ken_Marcus
- Marcus, Ken(neth J.) (1952-2010) (stories)
- See www.legacy.com/obituaries/latimes/obituary.aspx?n=Kenneth-Marcus&pid=149046463
- Marcus, Steven (1928-2018) (stories)
- See en.wikipedia.org/wiki/Steven_Marcus
- Mardon, Allan (1931- ) (art)
- See allanmardon.com
- Mardon, Deirdre (G.) (1942- ) (stories)
- See www.romancewiki.com/Deirdre_Mardon
- Marek, Kurt W(ilhelm) (1915-1972) (stories)
- See en.wikipedia.org/wiki/C._W._Ceram
- Marfield, Dwight (Steele) (1868-1955) (stories)
- Born in Ohio; graduate of General Theological Seminary and rector of Episcopal churches in Dayton and Cincinnati; then graduated from Cincinnati Law School and practiced in that city before moving to New York City in 1929.
- Margaret, Princess [i.e., Margaret Rose, Countess of Snowdon] (1930-2002) (stories) (assoc.)
- See en.wikipedia.org/wiki/Princess_Margaret,_Countess_of_Snowdon
- Margetson, W(illiam) H(enry) (1861-1940) (art)
- See bearalley.blogspot.co.uk/2017/10/w-h-margetson.html
- Margherita of Savoy, Princess [i.e., Margherita Maria Teresa Giovanna] (1851-1926) (stories) (assoc.)
- See en.wikipedia.org/wiki/Margherita_of_Savoy
- Margroff, Robert E(rvien) (1930-2015) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/margroff_robert_e
- Margueritte, Paul (1860-1918) (stories)
- See en.wikipedia.org/wiki/Paul_Margueritte
- Margueritte, Victor (1866-1942) (stories)
- See en.wikipedia.org/wiki/Victor_Margueritte
- Maria, Theresa Mahella (fl. 2010s) (art)
- See unlaceddreams.yolasite.com
- Maric, Karen (1970s- ) (stories)
- See karenmaric.com