- Minnion, Keith (fl. 1970s-2010s) (items) (chron.)
- See www.keithminnion.com
- Minton, D. Thomas (fl. 2000s-2020s) (items) (chron.)
- See dthomasminton.com/about
- Mintz, Catherine (fl. 1980s-2010s) (items) (chron.)
- See catherine-mintz.com
- Mireault, Bernie; [i.e., Bernard Edward Mireault] (1961-2024) (items) (chron.)
- See en.wikipedia.org/wiki/Bernie_Mireault
- Miro, J. M.; probably a pseudonym of Steven Price (fl. 2000s-2020s) (items) (chron.)
- See www.shelf-awareness.com/max-issue.html?issue=458#m957
- Mirolla, Michael (1948- ) (items) (chron.)
- See en.wikipedia.org/wiki/Michael_Mirolla
- Mirov, Lev (fl. 2010s-2020s) (items) (chron.)
- See levmirov.wordpress.com
- Misery (fl. 2020s) (items) (chron.)
- See sites.google.com/a/newmyths.com/nmwebsite/contributors/misery
- Misha; pseudonym of Misha Nogha (1955- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/misha
- Miska, Amanda (fl. 2010s) (items) (chron.)
- See www.xojane.com/author/amanda-miska
- Miske, Jack Chapman (1920-2003) (items) (chron.)
- See fancyclopedia.org/Jack_Chapman_Miske
- Mistah Pete; pseudonym of Pete Barnstrom (fl. 2010s-2020s) (items) (chron.)
- See www.deviantart.com/mistahpete
- Misuraca, Baron (fl. 2000s-2010s) (items)
- See www.imdb.com/name/nm4751063
- Mitchell, Betsy (fl. 1980s-2010s) (items) (chron.)
- See betsymitchelleditorial.com
- Mitchell, Biff (1947- ) (items) (chron.)
- See en.wikipedia.org/wiki/Biff_Mitchell
- Mitchell, Clyde (fl. 1950s); house pseudonym used by Harlan Ellison (1934-2018), Randall Garrett (1927-1987), Robert Silverberg (1935- ) & Henry Slesar (1927-2002) (items) (chron.)
- See www.sf-encyclopedia.com/entry/mitchell_clyde
- Mitchell, David (1969- ) (items)
- See www.sf-encyclopedia.com/entry/mitchell_david
- Mitchell, Edgar (Dean) (1930-2016) (items)
- See en.wikipedia.org/wiki/Edgar_Mitchell
- Mitchell, Edward Page (1852-1927) (items) (chron.)
- See www.sf-encyclopedia.com/entry/mitchell_edward_page
- Mitchell, J(ohn) A(mes) (1845-1918) (items) (chron.)
- See www.sf-encyclopedia.com/entry/mitchell_j_a
- Mitchell, J(ames) Leslie (1901-1935); used pseudonym Lewis Grassic Gibbon (items) (chron.)
- See www.sf-encyclopedia.com/entry/mitchell_j_leslie
- Mitchell, Karen Anne (fl. 2000s-2010s) (items) (chron.)
- See www.sf-encyclopedia.com/entry/mitchell_karen_anne
- Mitchell, Kirk (John) (1950- ) (items)
- See www.sf-encyclopedia.com/entry/mitchell_kirk
- Mitchell, Lia Swope (fl. 2010s-2020s) (items) (chron.)
- See liaswopemitchell.com
- Mitchell, Maida; pseudonym (fl. 1930s) (items) (chron.)
- used by a Yale Record writer/staffer for Real Spicy Horror Tales.
- Mitchell, Michael, Jr. (fl. 2010s) (items) (chron.)
- See www.michaelmitchelljr.com
- Mitchell, Regina Garza (fl. 2000s-2020s) (items) (chron.)
- See wmich.edu/leadership/directory/garza-mitchell
- Mitchell, Ruth (fl. 2020s) (items) (chron.)
- See www.literallyruth.com
- Mitchell, S(ilas) Weir, M.D. (1829-1914) (items) (chron.)
- See en.wikipedia.org/wiki/Silas_Weir_Mitchell
- Mitchell, Saundra (1973- ) (items) (chron.)
- See saundramitchell.com
- Mitchell, Syne (1970- ) (items) (chron.)
- See en.wikipedia.org/wiki/Syne_Mitchell
- Mitchell, V. E.; [i.e., Victoria Estelle Mitchell Gustafson] (1954- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/mitchell_v_e
- Mitchison, Naomi (Margaret) (1897-1999) (items) (chron.)
- See en.wikipedia.org/wiki/Naomi_Mitchison
- Mitra, Debkanya (fl. 2020s) (items) (chron.)
- See sites.google.com/a/newmyths.com/nmwebsite/contributors/debkanya-mitra
- Mitzuk, Christine (fl. 2010s) (items) (chron.)
- See www.christinemitzuk.com
- Mixon, Laura J.; [i.e., Laura J. Mixon-Gould] (1957- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/mixon_laura_j
- Miyazaki, Hayao (1941- ) (items)
- See en.wikipedia.org/wiki/Hayao_Miyazaki
- Miyazawa, Kenji (1896-1933) (items) (chron.)
- See en.wikipedia.org/wiki/Kenji_Miyazawa
- Mlalazi, Christopher (fl. 2000s-2020s) (items) (chron.)
- See icorn.org/writer/christopher-mlalazi
- Mocabee, Leslyn; married name of Leslyn MacDonald (1904-1981) (items) (chron.)
- See tellersofweirdtales.blogspot.co.uk/2016/05/leslyn-macdonald-1904-1981.html
- Mocikat, Anna (fl. 2010s-2020s) (items) (chron.)
- See www.annamocikat.com
- Modes, Wes (fl. 2010s) (items) (chron.)
- See modes.io
- Modesitt, L(eland) E(xton, Jr.) (1943- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/modesitt_l_e
- Moeller, Christopher (1963- ) (items) (chron.)
- See en.wikipedia.org/wiki/Christopher_Moeller
- Moeller, Jonathan (fl. 2000s-2010s) (items) (chron.)
- See www.jonathanmoeller.com
- Moench, Doug (1948- ) (items) (chron.)
- See en.wikipedia.org/wiki/Doug_Moench
- Moers, Walter (1957- ) (items)
- See www.sf-encyclopedia.com/entry/moers_walter
- Moesta, Rebecca (1956- ); also known as Rebecca Moesta Anderson (items) (chron.)
- See www.sf-encyclopedia.com/entry/moesta_rebecca
- Moffatt, June (1926-2018) (items) (chron.)
- See file770.com/?p=42520
- Moffett, Cleveland (Langston) (1863-1926) (items) (chron.)
- See www.sf-encyclopedia.com/entry/moffett_cleveland
- Moffett, Judith (1942- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/moffett_judith
- Moffitt, Donald (C.) (1931-2014) (items) (chron.)
- See www.sf-encyclopedia.com/entry/moffitt_donald
- Mohamed, Premee (1981- ) (items) (chron.)
- See sf-encyclopedia.com/entry/mohamed_premee
- Mohan, David (fl. 2010s) (items) (chron.)
- See davidmohan.wordpress.com
- Mohan, Kim (Rudolph) (1949-2022) (items) (chron.)
- See www.sf-encyclopedia.com/entry/mohan_kim
- Mohan, Steven D., Jr. (1967-2024) (items) (chron.)
- See bg.battletech.com/news/passing-of-steven-mohan-jr
- Moher, Aidan (fl. 2010s-2020s) (items) (chron.)
- See aidanmoher.com
- Mohlere, Virginia M. (fl. 2000s-2020s) (items) (chron.)
- See www.virginiamohlere.com
- Mohrbacher, Peter (fl. 2010s-2020s) (items) (chron.)
- See www.vandalhigh.com
- Møinichen, Claus (c1660-c1726) (items) (chron.)
- See en.wikipedia.org/wiki/Claus_Møinichen
- Mojica, Jose (fl. 2000s) (items) (chron.)
- See www.intergalacticmedicineshow.com/Data/bios/mojica_jose.html
- Mojzes, Bernie (fl. 2000s-2010s) (items) (chron.)
- See www.kappamaki.com
- Mok, D. K. (fl. 2010s-2020s) (items) (chron.)
- See www.dkmok.com
- Molendijk, Paul (c1968- ) (items) (chron.)
- See www.modelmayhem.com/panlannen
- Moles, David (fl. 2000s-2020s) (items) (chron.)
- See chrononaut.org
- Moleski, Christine (fl. 2010s) (items) (chron.)
- See www.christinemoleski.com
- Molesworth, Vol(taire) (1924-1965) (items) (chron.)
- See www.sf-encyclopedia.com/entry/molesworth_vol