- Mercier, Louis-Sébastien (1740-1814) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mercier_louis-sebastien
- Meredith, George (1828-1909) (stories) (assoc.)
- See en.wikipedia.org/wiki/George_Meredith
- Meredith, Richard C(arlton) (1937-1979) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/meredith_richard_c
- Merle, Robert (Jean Georges) (1908-2004) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/merle_robert
- Merril, Judith [originally Josephine Juliet Grossman] (1923-1997) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/merril_judith
- Merritt, A(braham Grace) (1884-1943) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/merritt_a
- Mertz, Barbara (Louise) G(ross) (1927-2013) (stories)
- See en.wikipedia.org/wiki/Barbara_Mertz
- Merwin, Sam(uel Kimball), Jr. (1910-1996) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/merwin_sam_jr
- Merwin, Samuel (Kimball) (1874-1936) (stories) (assoc.)
- Born in Evanston, Illinois, died in New York City; educated at Northwestern University; contributed many short stories and serials to magazines. Father of Sam Merwin, Jr..
- Meskys, Ed(mund R.) (1936- ) (stories) (assoc.)
- See fancyclopedia.org/ed-meskys
- Metcalf, Norm(an C.) (1937- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/metcalf_norm
- Métraux, Alfred (1902-1963) (stories) (assoc.)
- See en.wikipedia.org/wiki/Alfred_M%C3%A9traux
- Metzger, Robert A(lan) (1956- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/metzger_robert_a
- Meyer, Kai (1969- ) (stories) (assoc.)
- See de.wikipedia.org/wiki/Kai_Meyer
- Meyers, Ric(hard Sam) (1953- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/meyers_richard_s
- Meyers, Walter E(arl) (1939- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/meyers_walter_e
- Meyrink, Gustav [originally Gustav Meyer] (1868-1932) (stories) (assoc.)
- See en.wikipedia.org/wiki/Gustav_Meyrink
- Mezrich, Ben (1969- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mezrich_ben
- Michaels, Melisa C. (1946- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/michaels_melisa_c
- Michel, Aimé (1919-1992) (stories) (assoc.)
- See en.wikipedia.org/wiki/Aimé_Michel
- Michener, James A(lbert) (1907-1997) (stories) (assoc.)
- See en.wikipedia.org/wiki/James_A._Michener
- Micklem, Sarah (1955- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Sarah_Micklem
- Middleton, Richard (Barham) (1882-1911) (stories)
- Born in Staines, Middlesex; insurance clerk turned unsuccessful writer.
- Miesel, Sandra (Louise) (1941- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miesel_sandra
- Miklowitz, Gloria D(ubov) (1927- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miklowitz_gloria_d
- Milán, Victor (Woodward) (1954-2018) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/milan_victor
- Millar, Kenneth (1915-1983) (stories)
- Detective story writer; his later mysteries featured detective Lew Archer. Born in Los Gatos, California; died in Santa Barbara, California.
- Miller, Frank (1957- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miller_frank
- Miller, G(eorge) Wayne (1954- ) (stories) (assoc.)
- Staff writer for Providence, R.I. newspaper.
- Miller, Ian (1946- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Ian_Miller_(illustrator)
- Miller, J(ames) P(inckney) (1919-2001) (stories) (assoc.)
- See en.wikipedia.org/wiki/JP_Miller
- Miller, John J(oseph) (1954- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miller_john_j
- Miller, Karl (Fergus Connor) (1931-2014) (stories) (assoc.)
- See www.telegraph.co.uk/news/obituaries/11131129/Karl-Miller-obituary.html
- Miller, Miranda (Hyman) (1950- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miller_miranda
- Miller, P(eter) Schuyler (1912-1974) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miller_p_schuyler
- Miller, R(ichard) DeWitt (1910-1958) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miller_r_dewitt
- Miller, Richard (Connelly) (1925- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miller_richard
- Miller, Russell ({c}1938- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Russell_Miller
- Miller, Steve(n R.) (1950- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miller_steve
- Miller, Walter M(ichael, Jr.) (1922-1996) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miller_walter_m
- Miller, Warren (1921-1966) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/miller_warren
- Millet, Lydia (1968- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Lydia_Millet
- Mills, C(arla) J(ohnson) (1944- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mills_c_j
- Mills, Robert E. (1938?- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mills_robert_e
- Milne, A(lan) A(lexander) (1882-1956) (stories) (assoc.)
- See en.wikipedia.org/wiki/A._A._Milne
- Mines, Samuel (1909-1986) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mines_samuel
- Misha; pseudonym of Misha Nogha (1955- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/misha
- Mistry, Nilesh (fl. 1990s-2000s) (stories) (assoc.)
- See www.nileshmistryart.com
- Mitchell, David (1969- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mitchell_david
- Mitchell, Edward Page (1852-1927) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mitchell_edward_page
- Mitchell, J(ohn) A(mes) (1845-1918) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mitchell_j_a
- Mitchell, J(ames) Leslie (1901-1935) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mitchell_j_leslie
- Mitchell, Kirk (John) (1950- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mitchell_kirk
- Mitchell, Saundra (1973- ) (stories) (assoc.)
- See saundramitchell.com
- Mitchell, V. E. [i.e., Victoria Estelle Mitchell Gustafson] (1954- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mitchell_v_e
- Mitchison, Naomi (Margaret, née Haldane) (1897-1999) (stories) (assoc.)
- See en.wikipedia.org/wiki/Naomi_Mitchison
- Mixon, Laura J. [i.e., Laura J. Mixon-Gould] (1957- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mixon_laura_j
- Modesitt, L(eland) E(xton, Jr.) (1943- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/modesitt_l_e
- Moench, Doug (1948- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Doug_Moench
- Moffett, Judith (1942- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moffett_judith
- Moffitt, Donald (C.) (1931-2014) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moffitt_donald
- Mohan, Kim (Rudolph) (1949- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mohan_kim
- Molesworth, Vol(taire) (1924-1965) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/molesworth_vol
- Moloney, Susie (1962- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Susie_Moloney
- Monk, Devon (fl. 1990s-2010s) (stories) (assoc.)
- See en.wikipedia.org/wiki/Devon_Monk
- Monsarrat, Nicholas (John Turney) (1910-1979) (stories) (assoc.)
- See en.wikipedia.org/wiki/Nicholas_Monsarrat
- Monteleone, Thomas F(rancis, Jr.) (1946- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/monteleone_thomas_f
- Montgomery, R(aymond) A(lmira, Jr.) (1936-2014) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/montgomery_r_a
- Montgomery, Ruth (1912-2001) (stories) (assoc.)
- See en.wikipedia.org/wiki/Ruth_Montgomery
- Moon, (Susan) Elizabeth N(orris) (1945- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moon_elizabeth
- Mooney, Ted [i.e., Edward Mooney] (1951- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mooney_ted
- Moorcock, Michael (John) (1939- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Michael_Moorcock
- Moore, Alan (1953- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Alan_Moore
- Moore, Brian (1921-1999) (stories) (assoc.)
- See en.wikipedia.org/wiki/Brian_Moore_(novelist)
- Moore, C(atherine) L(ucille) (1911-1987) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moore_c_l
- Moore, Catherine (fl. 2010s) (stories) (assoc.)
- See about.me/catherinemoore
- Moore, Christopher (1957- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Christopher_Moore_(author)
- Moore, Harris; joint pseudonym of Alfred Harris (1928-1998) & Arthur Moore (1914-2005) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moore_harris
- Moore, Miriam Ann (Rogow) (1964- ) (stories)
- Corporate travel specialist in San Francisco. Daughter of Roberta Rogow.
- Moore, [Sir] Patrick (Alfred Caldwell) (1923-2012) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moore_patrick
- Moore, Raylyn (née Crabb) (1928-2005) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moore_raylyn
- Moore, Robin [i.e., Robert Lowell Moore, Jr.] (1925-2008) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moore_robin
- Moore, Roger E(lwood) (1955- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Roger_E._Moore
- Moore, (Joseph) Ward (1903-1978) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moore_ward
- Mooser, Stephen (1941- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mooser_stephen
- Mór, Caiseal (1961- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Caiseal_M%C3%B3r
- Moran, Daniel Keys (1962- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moran_daniel_keys
- Moran, Richard (Jerome) (1942-2009) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moran_richard
- Morgan, Chris (1946- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/morgan_chris
- Morgan, Dan (1925-2011) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/morgan_dan
- Morgan, J(ill) M(eredith) (1946- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/morgan_j_m
- Morgan, Richard K(ingsley) (1965- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/morgan_richard
- Moriarty, Chris (1968- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moriarty_chris
- Morley, Felix (Muskett) (1894-1982) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/morley_felix
- Moroz, Anne (Freeman) (1953- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/moroz_anne
- Morrell, David (Bernard) (1943- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/David_Morrell
- Morressy, John (1930-2006) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/morressy_john
- Morris, Chris(topher Crosby) (1946- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/morris_chris
- Morris, Janet E(llen) (1946- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/morris_janet_e
- Morris, (Margaret) Jean (1924-1996) (stories) (assoc.)
- Radio and TV scriptwriter; radio, film and TV director.