- McCauley, Harold W(illiam) (1913-1977) (stories) (art)
- See pulpartists.com/McCauley.html
- McCharles, Randy (fl. 2000s-2010s) (stories)
- See randymccharles.weebly.com
- McClary, Thomas Calvert (1909-1972) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcclary_thomas_calvert
- McClellan, Brian (fl. 2000s-2010s) (stories) (assoc.)
- See www.brianmcclellan.com
- McCloy, Helen (Worrell Clarkson) (1904-1992) (stories)
- See www.sf-encyclopedia.com/entry/mccloy_helen
- McCluskey, Gary (fl. 1980s-2010s) (stories) (art)
- See garymccluskey.carbonmade.com
- McClusky, Thorp (1906-1975) (stories)
- Free-lance writer, former editor of Motor magazine; also wrote juveniles and a book on chiropractics. Studied music at Syracuse University. During the 1960s he lived in Atlantic Highlands, New Jersey. Probably died in Eatontown, Monmouth, New Jersey.
- McCollum, Michael A(llen) (1946- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mccollum_michael_a
- McComas, J(esse) Francis (1911-1978) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mccomas_j_francis
- McCombs, Theodore (fl. 2010s) (stories)
- See www.beneath-ceaseless-skies.com/authors/theodore-mccombs
- McConnell, James V. (1925-1990) (stories)
- See www.sf-encyclopedia.com/entry/mcconnell_james_v
- McCord, Joseph (1880-1943) (stories)
- Born in Moline, Illinois.
- McCormack, Una (fl. 2000s-2010s) (stories)
- See www.sf-encyclopedia.com/entry/mccormack_una
- McCormick, James Austin (fl. 2000s-2010s) (stories)
- See jimbostories.wordpress.com
- McCormick, William Burton (fl. 2010s) (stories)
- See www.goodreads.com/author/show/5447401.William_Burton_McCormick
- McCosh, Emily (fl. 2010s) (stories) (art)
- See www.oceansinthesky.com
- McCoy, Chanté (fl. 2010s) (stories)
- See chantemccoy.com
- McCoy, Max (1958- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mccoy_max
- McCoy, R. Scott (fl. 2000s-2010s) (stories)
- See www.rscottmccoy.com
- McCoy, Shaun O. (fl. 2010s) (stories)
- See hellsongseries.com
- McCoy, Tod (fl. 2010s) (stories)
- See todmccoy.com
- McCrady, Kelly (fl. 2010s) (stories)
- See www.kellymccrady.com
- McCranie, Tex (fl. 2010s) (art)
- See texmccranie.deviantart.com
- McCrea, [Sir] W(illiam) H(unter) (1904-1999) (stories) (assoc.)
- See en.wikipedia.org/wiki/William_McCrea_(astronomer)
- McCrorie, Edward (1936- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Edward_McCrorie
- McCullough, Kelly (David) (fl. 1990s-2010s) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mccullough_kelly
- McCullough, Laura (M.) (1960- ) (stories)
- See en.wikipedia.org/wiki/Laura_McCullough
- McCutchen, D. K. (fl. 2010s) (stories)
- See blogs.umass.edu/dkmcc2
- McDaniel, David (Edward) (1939-1977) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcdaniel_david
- McDaniel, Kent (fl. 1960s-2010s) (stories)
- See dumbfoundingstories.com
- McDaris, Catfish (1953- ) (stories)
- See theliteraryunderground.org/wiki/index.php?title=Catfish_McDaris
- McDermott, J(oe) M. (fl. 2000s-2010s) (stories) (assoc.)
- See jmmcdermott.wordpress.com
- McDermott, Kirstyn (1973- ) (stories)
- See en.wikipedia.org/wiki/Kirstyn_McDermott
- McDermott, Kristen (fl. 2000s) (stories)
- See www.cmich.edu/colleges/chsbs/English/FacultyandStaff/Pages/Kristen-McDermott.aspx
- McDevitt, Jack [i.e., John Charles McDevitt] (1935- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcdevitt_jack
- McDonald, Ed (fl. 2010s) (stories) (assoc.)
- See edmcdonaldwriting.com
- McDonald, Ian (Neil) (1960- ) (stories) (art) (assoc.)
- See www.sf-encyclopedia.com/entry/mcdonald_ian
- McDonald, Sandra (1966- ) (stories)
- See www.sf-encyclopedia.com/entry/mcdonald_sandra
- McDonald, Siobhan (fl. 2010s) (art)
- See www.siobhanmcdonald.com
- McDonald, Steven Edward (1956- ) (stories)
- See www.sf-encyclopedia.com/entry/mcdonald_steven_e
- McDonell, M. Luke (fl. 2010s) (stories)
- See mlukemcdonell.wordpress.com
- McDonnell, Carole (fl. 2000s-2010s) (stories) (assoc.)
- See carolemcdonnell.blogspot.co.uk
- McDonough, Thomas R(edmond) (1945- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcdonough_thomas_r
- McDougal, Heather (fl. 2000s-2010s) (stories)
- See www.heathermcdougal.com
- McDowell, (Robert) Emmett (1914-1975) (stories)
- See desturmobed.blogspot.co.uk/2011/12/robert-emmett-mcdowell.html
- McElroy, Soraya Jean-Louis (fl. 2010s) (stories) (art) (assoc.)
- See strangehorizons.com/non-fiction/articles/artist-interview-soraya-jean-louis-mcelroy
- McEnroe, Richard S(ean) (1956- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcenroe_richard_s
- McEvoy, Seth (1948- ) (stories)
- See www.sf-encyclopedia.com/entry/mcevoy_seth
- McEwan, Ian (Russell) (1948- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcewan_ian
- McFadden, Edward J., III (fl. 1990s-2010s) (stories)
- See www.edwardmcfadden.com
- McFadzean, Dakota (fl. 2010s) (stories)
- See www.dakota-mcfadzean.com
- McFarlane, (Charles) Leslie (1902-1977) (stories)
- Newspaperman; prolific hack; also author of Hardy Boys stories under name of Franklin W. Dixon. Born in Carleton Place, Ontario, Canada; died in Whitby, Ontario, Canada.
- McFetridge, G. D. (fl. 2000s-2010s) (stories)
- See www.writefortomorrow.org/publications/when-it-comes-to-his-wife/g-d-mcfetridge
- McGachey, Daniel (fl. 2000s-2010s) (stories) (art) (assoc.)
- See www.darkregions.com/daniel-mcgachey
- McGarry, Mark J. (1958- ) (stories)
- See www.sf-encyclopedia.com/entry/mcgarry_mark_j
- McGee, Kathryn E. (fl. 2010s) (stories)
- See www.kathrynemcgee.com
- McGhee, Mord (fl. 2010s) (stories)
- See www.mordmcghee.com
- McGillivray, Erica (fl. 2010s) (stories)
- See uncannymagazine.com/authors/erica-mcgillivray
- McGillivray, Ray (fl. 1920s-1940s) (stories)
- Traveller and sportsman. Lived in Citronelle, Alabama.
- McGinnis, Erika (fl. 2000s-2010s) (art)
- See www.erikamcginnisart.com
- McGivern, William P(eter) (1922-1982) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcgivern_william_p
- McGivney, Timothy (fl. 2010s) (stories)
- See timothymcgivney.com
- McGowan, David C. (fl. 1940s) (stories)
- possibly a pseudonym.
- McGowan, Jennifer A. (fl. 2010s) (stories)
- See www.jenniferamcgowan.com
- McGowan, Kieran (fl. 2010s) (art)
- See snidefield.deviantart.com
- McGrath, Martin (fl. 2000s-2010s) (stories)
- See www.mmcgrath.co.uk
- McGrath, Patrick (M.) (1950- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Patrick_McGrath_(novelist)
- McGraw, Charles G. (fl. 1980s-2000s) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcgraw_charles_g
- McGregor, Rafe (1973- ) (stories)
- See philpapers.org/profile/32092
- McGrew, Donald Francis (1886-1955) (stories)
- See pulpflakes.blogspot.com/2019/07/donald-francis-mcgrew-author-journalist.html
- McGugan, Libby (1972- ) (stories) (assoc.)
- See libbymcgugan.com
- McGuire, John J(oseph) (1917-1981) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcguire_john_j
- McGuire, Patrick L(lewellyn) (1949- ) (stories)
- See www.sf-encyclopedia.com/entry/mcguire_patrick_l
- McHugh, Ian (fl. 2000s-2010s) (stories)
- See en.wikipedia.org/wiki/Ian_McHugh
- McHugh, Jessica (1982- ) (stories)
- See en.wikipedia.org/wiki/Jessica_McHugh
- McHugh, Maura (fl. 2000s-2010s) (stories)
- See splinister.com
- McHugh, Maureen F. (1959- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mchugh_maureen_f
- McHugh, Vincent (1904-1983) (stories) (assoc.)
- See desturmobed.blogspot.com/2019/01/vincent-mchugh.html
- McIlveen, John M. (fl. 1990s-2010s) (stories)
- See johnmcilveen.com
- McInnes, Graham (Campbell) (1912-1970) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcinnes_graham
- McIntosh, J. T.; pseudonym of James Murdoch MacGregor (1925-2008) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcintosh_j_t
- McIntosh, Will (fl. 2000s-2010s) (stories) (assoc.)
- See willmcintosh.net
- McIntyre, T. J. (fl. 2000s-2010s) (stories)
- See southernweirdo.wordpress.com
- McIntyre, Vonda N(eel) (1948-2019) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mcintyre_vonda_n
- McKain, Janelle (fl. 2010s) (art)
- See janellemckain.deviantart.com
- McKeag, Ernest L(ionel) (1896-1976) (stories)
- See bearalley.blogspot.co.uk/2006/08/ernest-mckeag_17.html
- McKee, David (John) (1935- ) (stories)
- See en.wikipedia.org/wiki/David_McKee
- McKee, Erin (fl. 1970s-2010s) (art)
- See www.valleycon.com/emckee.html
- McKee, Jo (fl. 2010s) (stories)
- See www.jomckee.com
- McKee, (Edward) Lucky (1975- ) (stories)
- See en.wikipedia.org/wiki/Lucky_McKee
- McKenna, Edward L(awrence) (1893-1953) (stories)
- Author, columnist, assistant professor of insurance at the University of Pennsylvania. Born in Brooklyn, New York; died in Baltimore, Pennsylvania.
- McKenna, Juliet E. (1965- ) (stories) (assoc.)
- See www.julietemckenna.com
- McKenna, Lesley (fl. 2010s) (stories)
- See www.beds.ac.uk/howtoapply/departments/culture-and-communications/staff/lesley-mckenna
- McKenna, Marti (fl. 1990s-2010s) (stories) (art)
- See www.martimckenna.com
- McKenna, Martin (fl. 1980s-2010s) (art)
- See www.martinmckenna.net
- McKenna, Richard M(ilton) (1913-1964) (stories) (art) (assoc.)
- See www.sf-encyclopedia.com/entry/mckenna_richard_m
- McKenzie, Keira (fl. 1990s-2010s) (stories) (art)
- See keiramck.deviantart.com
- McKiernan, Andrew J. (1970- ) (stories) (art)
- See en.wikipedia.org/wiki/Andrew_J_McKiernan
- McKillip, Patricia A(nne) (1948- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/mckillip_patricia_a
- McKimm, Dafydd (fl. 2010s) (stories)
- See dafyddmckimm.com