- Lynn, Diana (Marie) [born Dolores Eartha Loehr] (1926-1971) (stories) (assoc.)
- See en.wikipedia.org/wiki/Diana_Lynn
- Lynn, Elizabeth A(nne) (1946- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/lynn_elizabeth_a
- Lynn, [Sir] Robert (John) (1873-1945) (stories)
- See en.wikipedia.org/wiki/Robert_Lynn_(politician)
- Lynx, J(oachim) J(ohannes) (1898-1969) (stories)
- Born in Germany; died in Richmond upon Thames, London, England.
- Lyon, Carl (1903-1982) (art)
- See www.austlit.edu.au/austlit/page/A43044
- Lyon, (Mabel) Dana (1897-1982) (stories)
- Californian; born in Germany.
- Lyon, Ernest Neal (1873-1907) (stories)
- See books.google.com/books?id=Cn_PAAAAMAAJ&pg=PA310&lpg=PA310&dq=Lyon,+Ernest+Neal&source=bl&ots=3eDBeBdq5r&sig=Dg033eAxq8oakeqgan7M2SzxeYE&hl=en&sa=X&ved=0ahUKEwjGlMf4lcTXAhVnqlQKHZFaAF0Q6AEIJjAA#v=onepage&q=Lyon%2C%20Ernest%20Neal&f=false
- Lyon, Hillary (fl. 1990s-2010s) (stories)
- See hillarylyon.wordpress.com
- Lyon, Leverett Samuel (1885-1959) (stories)
- See en.wikipedia.org/wiki/Leverett_S._Lyon
- Lyon, Nelson (1939-2012) (stories)
- See articles.latimes.com/2012/jul/20/local/la-me-nelson-lyon-20120720
- Lyon, Richard (Elmer) (1913-2002) (art)
- See pulpartists.com/Lyon.html
- Lyons, Daniel (1960- ) (stories)
- See en.wikipedia.org/wiki/Daniel_Lyons
- Lyons, David (fl. 1970s-2010s) (stories)
- See www.davidlyonsauthor.com
- Lyons, Leonard (1906-1976) (stories)
- See en.wikipedia.org/wiki/Leonard_Lyons
- Lyons, Lynda (1949- ) (stories)
- See www.sf-encyclopedia.com/entry/lyons_lynda
- Lyons, P. Howard (1928-1987) (stories)
- See fancyclopedia.org/p-howard-lyons
- Lyons, Peter L(aurence) (stories)
- Born in Adelaide, Australia.
- Lyons, Steve (fl. 1990s-2010s) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/lyons_steve
- Lyris, Sonia Orin (fl. 1980s-2010s) (stories)
- See en.wikipedia.org/wiki/Sonia_Orin_Lyris
- Lyte, Henry Francis (1793-1847) (stories) (assoc.)
- See en.wikipedia.org/wiki/Henry_Francis_Lyte
- Lyte, Henry (Churchill) Maxwell (1848-1940) (stories)
- See en.wikipedia.org/wiki/Henry_Maxwell_Lyte
- Lytle, William Haines (1826-1863) (stories)
- See en.wikipedia.org/wiki/William_Haines_Lytle
- Lyttelton, Alfred (1857-1913) (stories) (assoc.)
- See en.wikipedia.org/wiki/Alfred_Lyttelton
- Lyttelton, Edith (Sophy, née Balfour) (1865-1948) (stories) (assoc.)
- See en.wikipedia.org/wiki/Edith_Balfour_Lyttelton
- Lyttelton, Edward (1855-1942) (stories) (assoc.)
- See en.wikipedia.org/wiki/Edward_Lyttelton
- Lyttelton, Lord [i.e., George William Lyttelton, 4th Baron Lyttelton] (1815-1879) (stories)
- See en.wikipedia.org/wiki/George_Lyttelton,_4th_Baron_Lyttelton
- Lyttelton, [Sir] Neville G(erald) (1845-1931) (stories)
- See en.wikipedia.org/wiki/Neville_Lyttelton
- Lyttelton, Oliver (, 1st Viscount Chandos) (1893-1972) (stories) (assoc.)
- See en.wikipedia.org/wiki/Oliver_Lyttelton,_1st_Viscount_Chandos
- Lyttelton, Robert (Henry) (1854-1939) (stories)
- See en.wikipedia.org/wiki/Robert_Lyttelton
- Lyttelton, [Lady] Sarah (née Spencer) (1787-1870) (stories) (assoc.)
- See www.lordbyron.org/persRec.php?&selectPerson=LyLytte3
- Lyttleton, Edith Joan (1874-1945) (stories)
- See en.wikipedia.org/wiki/Edith_Joan_Lyttleton
- Lyttleton, Raymond A(rthur) (1911-1995) (stories) (assoc.)
- See en.wikipedia.org/wiki/Raymond_Lyttleton
- M., J. W.; pseudonym (fl. 1870s-1880s) (stories)
- See www.sf-encyclopedia.com/entry/j_w_m
- Ma, Ling (fl. 2010s) (stories)
- See creativewriting.uchicago.edu/faculty/ma
- Maartens, Maarten; pseudonym of Joost M. W. Schwartz (1858-1915) (stories)
- See en.wikipedia.org/wiki/Maarten_Maartens
- Mabanckou, Alain (1966- ) (stories)
- See en.wikipedia.org/wiki/Alain_Mabanckou
- Mabbs, Keith (L.) (fl. 2010s) (stories)
- See klmabbs.com
- Maberry, Jonathan (1958- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jonathan_Maberry
- Mabie, Mary Louise (1904-1972) (stories)
- See speccoll.library.arizona.edu/collections/mary-louise-mabie-papers
- Mac Adam, Alfred (fl. 2010s) (stories)
- See www.rtbevent.com/alfred-macadam
- Macalister, Molly (Morell) (1920-1979) (stories) (assoc.)
- See www.teara.govt.nz/en/biographies/5m2/macalister-molly-morell
- MacAllister, Dean (fl. 2010s) (stories)
- See www.goodreads.com/author/show/6864554.Dean_MacAllister
- MacApp, C. C.; pseudonym of Carroll M. Capps (1913-1971) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/macapp_c_c
- Macardle, Dorothy (Marguerite Callan) (1889-1958) (stories) (assoc.)
- See en.wikipedia.org/wiki/Dorothy_Macardle
- MacArthur, Charles C. (1895-1956) (stories)
- Born in Scranton, Pennsylvania; journalist, then playwright and screenwriter.
- MacArthur, Douglas (1880-1964) (stories) (assoc.)
- See en.wikipedia.org/wiki/Douglas_MacArthur
- MacArthur, Jodi (fl. 2000s-2010s) (stories)
- See www.jodimacarthur.blogspot.co.uk
- Macaulay, (Emilie) Rose (1881-1958) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/macaulay_rose
- Macaulay, Thomas Babington (, 1st Baron Macaulay) (1800-1859) (stories)
- See en.wikipedia.org/wiki/Thomas_Babington_Macaulay
- Macauley, Wayne (fl. 1990s-2010s) (stories)
- See waynemacauley.com
- MacAvoy, R(oberta) A(nn) (1949- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/macavoy_r_a
- MacBain-Stephens, Jennifer (fl. 2010s) (stories)
- See jennifermacbainstephens.wordpress.com
- MacBeth, George (Mann) (1932-1992) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/macbeth_george
- Macbeth, M(adge Hamilton Lyons) (1878-1965) (stories)
- Born in Philadelphia and died in Ottawa, Canada. Writer, traveler, and charming Ottawa hostess.
- MacBird, Bonnie (1951- ) (stories)
- See en.wikipedia.org/wiki/Bonnie_MacBird
- MacBride, Stuart (1969- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Stuart_MacBride
- MacCaig, Norman (1910-1996) (stories) (assoc.)
- See en.wikipedia.org/wiki/Norman_MacCaig
- MacCallum, Mungo William (1854-1942) (stories)
- See en.wikipedia.org/wiki/Mungo_William_MacCallum
- MacCarthy, Denis Florence (1817-1882) (stories)
- See en.wikipedia.org/wiki/Denis_Florence_MacCarthy
- MacCarthy, J(ohn) Bernard (1888-1979) (stories)
- Born and died in Crosshaven, County Cork, Ireland; playwright, poet, novelist and short story writer; postman in Crosshaven most of his life.
- MacCath, C(eallaigh) S. (fl. 2000s-2010s) (stories)
- See csmaccath.com
- MacCloud, Malcolm (fl. 1980s) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/maccloud_malcolm
- MacClure, Victor; pseudonym of Thom MacWalter (1887-1963) (stories)
- See www.sf-encyclopedia.com/entry/macclure_victor
- MacCreagh, Gordon (1886-1953) (stories) (assoc.)
- See pulpflakes.blogspot.com/2012/08/gordon-maccreagh-adventurer-explorer.html
- MacCulloch, (Robert?) Campbell (fl. 1900s-1930s) (stories)
- Dramatist. Involved in the history of the New York branch of the Church of Christ, Science.
- MacDermott, Robert (1908-1964) (stories)
- See www.imdb.com/name/nm1062640/
- MacDiarmid, Hugh; pseudonym of Christopher Murray Grieve (1892-1978) (stories)
- See en.wikipedia.org/wiki/Hugh_MacDiarmid
- MacDonagh, Michael (1862-1946) (stories)
- See www.ricorso.net/rx/az-data/authors/Mac/M-Donagh_M/life.htm
- MacDonald, A(lexander) B(lack) (1871-1942) (stories)
- See www.revolvy.com/page/A.-B.-MacDonald
- MacDonald, Alexander (1908-2000) (stories) (assoc.)
- See articles.latimes.com/2000/may/26/local/me-34302
- MacDonald, Betty [born Anne Elizabeth Campbell Bard] (1908-1958) (stories)
- See en.wikipedia.org/wiki/Betty_MacDonald
- MacDonald, Donald J(ohn) (1908-1997) (stories)
- See www.nytimes.com/1997/02/10/us/donald-j-macdonald-88-naval-admiral.html
- Macdonald, Dwight (1906-1982) (stories)
- See en.wikipedia.org/wiki/Dwight_Macdonald
- Macdonald, Frederika Richardson (1845?-1923) (stories)
- See pennyspoetry.wikia.com/wiki/Frederika_Richardson_Macdonald
- MacDonald, George (1824-1905) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/macdonald_george
- Macdonald, J(ohn) A(rchibald) Murray (1854-1939) (stories)
- See en.wikipedia.org/wiki/John_Macdonald_(British_politician)
- Macdonald, [Sir] J(ohn) H(ay) A(thole, Lord Kingsburgh) (1836-1919) (stories)
- See en.wikipedia.org/wiki/John_Macdonald,_Lord_Kingsburgh
- Macdonald, James D(ouglas) (1954- ) (stories)
- See www.sf-encyclopedia.com/entry/macdonald_james_d
- Macdonald, [Sir] John Alexander (1815-1891) (stories) (assoc.)
- See en.wikipedia.org/wiki/John_A._Macdonald
- MacDonald, John D(ann) (1916-1986) (stories) (assoc.)
- See en.wikipedia.org/wiki/John_D._MacDonald
- MacDonald, Leslyn (1904-1981) (stories)
- See tellersofweirdtales.blogspot.co.uk/2016/05/leslyn-macdonald-1904-1981.html
- Macdonald, Malcolm (John Ross) (1932- ) (stories)
- Name changed legally to Malcolm John Ross-Macdonald in 1947.
- MacDonald, Philip (1900-1980) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/macdonald_philip
- MacDonald, (James) Ramsay (1866-1937) (stories) (assoc.)
- See en.wikipedia.org/wiki/Ramsay_MacDonald
- Macdonald, Robert M(aclachlan) (1874-1942) (stories)
- Born and died in Scotland, but lived in Australia for some time.
- MacDonald, Ronald (1860-1933) (stories)
- Born in London; educated at Oxford Unviersity; came to the U.S. as a schoolmaster but returned to England in 1895 to devote himself to literary work.
- Macdonald, Susan Agnes (, 1st Baroness Macdonald of Earnscliffe, née Bernard) (1836-1920) (stories)
- See en.wikipedia.org/wiki/Agnes_Macdonald,_1st_Baroness_Macdonald_of_Earnscliffe
- MacDonald, Taral Wayne (1951- ) (stories) (art)
- See fancyclopedia.org/taral-wayne
- Macdonald, W. A. (fl. 1910s-1930s) (stories)
- Newspaperman; editor of the Boston Evening Transcript.
- MacDonald, (Allan) William Colt (1891-1968) (stories)
- Born in Michigan; lived most of his life in the West; prolific author of westerns.
- Macdonell, A(rchibald) G(ordon) (1895-1941) (stories)
- See www.sf-encyclopedia.com/entry/macdonell_a_g
- MacDonnell, J(ames) E(dmond) (1917-2002) (stories)
- Writer. Born in MacKay, Queensland, Australia; lived in Australia.
- Macdonnell, John (1845-1921) (stories)
- See tombwithaview.org.uk/abg-people/sir-john-macdonnell/
- MacDonogh, Patrick (1902-1961) (stories)
- See en.wikipedia.org/wiki/Patrick_MacDonogh
- MacDougal, John; pseudonym of James Blish (1921-1975) & Robert A. W. Lowndes (1916-1998) (stories)
- See www.sf-encyclopedia.com/entry/macdougal_john