- Methley, Violet M(ary) (1882-1953) (items) (chron.)
- See tellersofweirdtales.blogspot.co.uk/2016/05/violet-m-methley-1882-1953.html
- Métraux, Alfred (1902-1963) (items)
- See en.wikipedia.org/wiki/Alfred_Métraux
- Metz, Makena (fl. 2020s) (items) (chron.)
- See www.makenametz.com
- Metzger, Arthur (1952- ) (items) (chron.)
- See fancyclopedia.org/Arthur_Metzger
- Metzger, Darragh (fl. 1990s-2000s) (items) (chron.)
- See www.darraghmetzger.com
- Metzger, Lois (fl. 1970s-2010s) (items) (chron.)
- See www.loismetzger.com
- Metzger, Robert A(lan) (1956- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/metzger_robert_a
- Metzger, Thom(as Richard) (1956- ); used pseudonym Leander Watts (items) (chron.)
- See zigguratlounge.blogspot.com
- Meurer, Lyra (fl. 2020s) (items) (chron.)
- See lyrameurer.blogspot.com
- Meyer, Adam (fl. 1990s-2020s) (items) (chron.)
- See www.goodreads.com/author/show/7367.Adam_Meyer
- Meyer, Angela (fl. 2010s) (items) (chron.)
- See literaryminded.com.au
- Meyer, J(acqueline) M(oran) (fl. 2010s) (items) (chron.)
- See jmoranmeyer.net
- Meyer, Kai (1969- ) (items)
- See de.wikipedia.org/wiki/Kai_Meyer
- Meyer, Karlyn Ruth (1984- ) (items) (chron.)
- See www.uncannymagazine.com/authors/karlyn-ruth-meyer
- Meyerhofer, Michael (1977- ) (items) (chron.)
- See en.wikipedia.org/wiki/Michael_Meyerhofer
- Meyers, Brandon (fl. 2000s) (items) (chron.)
- See www.goodreads.com/author/show/5409602.Brandon_Meyers
- Meyers, Ric(hard Sam) (1953- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/meyers_richard_s
- Meyers, Robert (William) (1919-1970) (items) (chron.)
- Born in New York City; murdered in Cody, Wyoming.
- Meynell, Viola (1885-1956) (items) (chron.)
- See en.wikipedia.org/wiki/Viola_Meynell
- Meyrink, Gustav; [originally Gustav Meyer] (1868-1932) (items) (chron.)
- See en.wikipedia.org/wiki/Gustav_Meyrink
- Mézières, Jean-Claude (1938-2022) (items) (chron.)
- See en.wikipedia.org/wiki/Jean-Claude_Mézières
- Michaels, Alan Vincent (fl. 2000s-2020s) (items) (chron.)
- See www.alanmichaels.com
- Michaels, Cara (fl. 2010s) (items) (chron.)
- See caramichaels.com
- Michaels, Damian (fl. 2010s) (items) (chron.)
- See www.flickr.com/photos/damianmichaels
- Michaels, Melisa C. (1946-2019) (items) (chron.)
- See www.sf-encyclopedia.com/entry/michaels_melisa_c
- Michals, Nils (fl. 2010s) (items) (chron.)
- See www.nilsmichals.com
- Michaud, Anne (fl. 2010s) (items) (chron.)
- See annecmichaud.wordpress.com/about/
- Michel, Aimé (1919-1992) (items)
- See en.wikipedia.org/wiki/Aimé_Michel
- Michel, John B(lythe) (1917-1968); used pseudonym Arthur Cooke (items) (chron.)
- See en.wikipedia.org/wiki/John_B._Michel
- Michel, Lincoln (1982- ) (items) (chron.)
- See en.wikipedia.org/wiki/Lincoln_Michel
- Michell, Fi (fl. 2010s) (items) (chron.)
- See fimichell.wordpress.com/about
- Michelle, Lori (fl. 2010s-2020s); also known as Lori Michelle Booth (items) (chron.)
- See www.lorimichelleauthor.com
- Michelmann, Jeff (1988- ) (items) (chron.)
- See gucken.deviantart.com
- Michelmore, Reg(inald?) (1879?-?) (items) (chron.)
- See www.sf-encyclopedia.com/entry/michelmore_reg
- Michener, Carroll K(insey) (1885-1970) (items) (chron.)
- See tellersofweirdtales.blogspot.com/2023/07/weird-tales-april-1923-part-three.html
- Michener, George H(ayworth) (1903-1982) (items) (chron.)
- Born in Pennsylvania, worked as lumberjack, rancher, steel worker and writer.
- Michener, James A(lbert) (1907-1997) (items) (chron.)
- See en.wikipedia.org/wiki/James_A._Michener
- Micklem, Sarah (1955- ) (items) (chron.)
- See en.wikipedia.org/wiki/Sarah_Micklem
- Middleton, Christopher (1926-2015) (items)
- See en.wikipedia.org/wiki/Christopher_Middleton_(poet)
- Middleton, Frances Bragg (fl. 1920s-1940s) (items) (chron.); there are suggestions that some of the stories under the Middleton name may have been written by, or with the assistance of, Frank Richardson Pierce, but no clear evidence has been found to support this.
- Possibly Estelle Frances Bragg Middleton (1886-1951), born in Kentucky and lived in Texas.
- Middleton, Richard (Barham) (1882-1911) (items) (chron.)
- See en.wikipedia.org/wiki/Richard_Barham_Middleton
- Middleton, Selena (fl. 2010s-2020s); used pseudonym Eileen Gunnell Lee (items) (chron.)
- See specfic.vaults.ca
- Miesel, Sandra (Louise) (1941- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/miesel_sandra
- Miéville, China (Tom) (1972- ) (items) (chron.)
- See en.wikipedia.org/wiki/China_Miéville
- Miguel, Rudolfo San (fl. 2020s) (items) (chron.)
- See www.rudolfosanmiguel.com
- Miike, Takashi (1960- ) (items)
- See en.wikipedia.org/wiki/Takashi_Miike
- Mikels, Ted V.; [born Theodore Mikacevich] (1929-2016) (items)
- See en.wikipedia.org/wiki/Ted_V._Mikels
- Mikesell, Chris (fl. 2000s) (items) (chron.)
- See mikesell.blogspot.co.uk
- Mikhaël, Ephraïm; [born Georges Michel] (1866-1890) (items) (chron.)
- See www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/mikhael-ephraim
- Milán, Victor (Woodward) (1954-2018) (items) (chron.)
- See www.sf-encyclopedia.com/entry/milan_victor
- Milas, John (fl. 2020s) (items)
- See www.johnmilas.com
- Milbrodt, Teresa (fl. 2000s-2020s) (items) (chron.)
- See teresamilbrodt.com
- Milder, Scott (1977- ) (items) (chron.)
- See www.imdb.com/name/nm2271703
- Miles, C. J. (fl. 2010s) (items) (chron.)
- See cjmilespoet.wordpress.com
- Miles, Lawrence (1972- ) (items) (chron.)
- See en.wikipedia.org/wiki/Lawrence_Miles
- Mill, Margaret Forrest (1896-1974) (items) (chron.)
- Born in Middlesex in 1896; spent most of her life in Montrose, Scotland, where she died in 1974.
- Millais, [Sir] John Everett (1829-1896) (items) (chron.)
- See en.wikipedia.org/wiki/John_Everett_Millais
- Millar, Alastair (fl. 2020s) (items) (chron.)
- See linktr.ee/alastairmillar
- Millar, Kenneth (1915-1983) (items) (chron.)
- Detective story writer; his later mysteries featured detective Lew Archer. Born in Los Gatos, California; died in Santa Barbara, California.
- Millard, Adam (1980- ) (items) (chron.)
- See www.adammillard.co.uk
- Millard, Joseph J(ohn) (1908-1989) (items) (chron.)
- See bearalley.blogspot.co.uk/2010/09/joe-millard.html
- Millay, Edna St. Vincent (1892-1950) (items) (chron.)
- See en.wikipedia.org/wiki/Edna_St._Vincent_Millay
- Mille, Pierre (1864-1941) (items) (chron.)
- Short story writer and journalist. Born in Choisy-le-Roi, near Paris; died in Paris, France.
- Millenson, Roy H. (1921-2017) (items) (chron.)
- See www.legacy.com/obituaries/washingtonpost/obituary.aspx?pid=185054459
- Miller, Chris (1968- ) (items)
- See en.wikipedia.org/wiki/Chris_Miller_(animator)
- Miller, Devin (fl. 2000s-2020s) (items) (chron.)
- See devinmillerwriting.blogspot.co.uk
- Miller, Eric (fl. 1990s-2020s) (items) (chron.)
- See www.ericmillerwrites.com