- Livingston, Florence Bingham (1877-1956) (stories)
- Born in Burlington, Vermont; died in Napa, California; educated at Columbia University.
- Livingston, Harold (1924- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/livingston_harold
- Livingston, Leon Ray (1872-1944) (stories) (assoc.)
- See en.wikipedia.org/wiki/Leon_Ray_Livingston
- Livingston, Michael (fl. 2000s-2010s) (stories)
- See www.michaellivingston.com
- Livingstone, David (1813-1873) (stories) (assoc.)
- See en.wikipedia.org/wiki/David_Livingstone
- Livingstone, Ian (1949- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/livingstone_ian
- Livoni, Cathy (Ann) (1956- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/livoni_cathy
- Liyuan, Jia (fl. 2010s) (stories)
- See www.sf-encyclopedia.com/entry/fei_dao
- Ljeskovac, Sara (fl. 2010s) (art)
- See www.saraljart.com
- Llamas, Florent (fl. 2010s) (art)
- See florentllamas.deviantart.com
- Llewellyn, (David William) Alun (1903-1988) (stories)
- See www.sf-encyclopedia.com/entry/llewellyn_alun
- Llewellyn, David (1978- ) (stories)
- See en.wikipedia.org/wiki/David_Llewellyn_(author)
- Llewellyn, Edward; pseudonym of Edward Llewellyn-Thomas (1917-1984) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/llewellyn_edward
- Llewellyn, Livia (fl. 2000s-2010s) (stories) (assoc.)
- See liviallewellyn.com
- Llewellyn, [Sir] (Samuel Henry) William (1858-1941) (stories) (art) (assoc.)
- See en.wikipedia.org/wiki/William_Llewellyn
- Lloyd George, David (1863-1945) (stories) (assoc.)
- See en.wikipedia.org/wiki/David_Lloyd_George
- Lloyd, Beatrix Demarest [Mrs. Atherton Brownell] (1880-?) (stories)
- Perhaps some relation to journalist Demarest Lloyd (1847-1903) or Demarest Lloyd Jr. (1883-1937), but apparently neither spouse nor child of either.
- Lloyd, Dawn (fl. 2010s) (stories)
- See dawnlloyd.wikispaces.com
- Lloyd, George (Ambrose, 1st Baron Lloyd) (1879-1941) (stories) (assoc.)
- See en.wikipedia.org/wiki/George_Lloyd,_1st_Baron_Lloyd
- Lloyd, John Uri (1849-1936) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/lloyd_john_uri
- Lloyd, Nelson (McAllister) (1873-1933) (stories)
- Born in Philadelphia.
- Lloyd, Rebecca (fl. 1990s-2010s) (stories)
- See anakimwriter.blogspot.co.uk
- Lloyd, Rebecca (fl. 1990s-2010s) (stories)
- See www.beccalloyd.org
- Lloyd, Stanley (1880-1954?) (art)
- Born in Liverpool, England; well known book illustrator.
- Lmrabet, Ali (1959- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Ali_Lmrabet
- Loban, Ethel H(arris) (1892-1985) (stories)
- Born in Toledo, OH; lived in California.
- Lobato, Monteiro (1882-1948) (stories)
- See www.sf-encyclopedia.com/entry/lobato_monteiro
- Lobaugh, Elma K(linedorf) (1907-1997) (stories)
- Born in Pennsylvania; had Ph.D. in economics from Univ. of Chicago; labor market analyst for Indiana Employment Security Division.
- LoBello, Nino (1921-1997) (stories) (art)
- Foreign correspondent, journalist, author of books about the Vatican. Born in Brooklyn, New York. Note: His last name is also spelled Lo Bello.
- Lobert, John B(ernard) (1881-1968) (stories)
- See en.wikipedia.org/wiki/Hans_Lobert
- Lobo, D. (fl. 2010s) (art)
- See onelobo.com
- Lobo, George Edmund (1894-1971) (stories)
- A minor Irish poet under his own name, and founder and editor of the Dublin Art Monthly 1927-1928; lived in Dublin.
- LoBrutto, Patrick (1948- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Pat_LoBrutto
- Locicero, Thomas (fl. 2010s) (stories)
- See www.goodreads.com/author/show/6469595.Thomas_Locicero
- Locke, Bobby [i.e., Arthur DArcy Locke] (1917-1987) (stories) (assoc.)
- See en.wikipedia.org/wiki/Bobby_Locke
- Locke, George (Walter) (1936-2019) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/locke_george
- Locke, Richard Adams (1800-1871) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/locke_richard_adams
- Locke, Sumner (1881-1917) (stories)
- See en.wikipedia.org/wiki/Sumner_Locke
- Locke, William J(ohn) (1863-1930) (stories) (assoc.)
- Born in British Guiana of English parents; educated in Trinidad and Cambridge; novelist and playwright; was a teacher in early career; in later life lived on the continent, especially on the Riviera.
- Lockemann, Georg (1871-1959) (stories) (assoc.)
- See en.wikipedia.org/wiki/Georg_Lockemann
- Locker, Arthur (1828-1893) (stories)
- See en.wikipedia.org/wiki/Arthur_Locker
- Locker-Lampson, Frederick (1821-1895) (stories) (assoc.)
- See en.wikipedia.org/wiki/Frederick_Locker-Lampson
- Locker-Lampson, [Commander] Oliver (Stillingfleet) (1880-1954) (stories)
- See en.wikipedia.org/wiki/Oliver_Locker-Lampson
- Lockhart, Caroline (Cameron) (1871-1962) (stories)
- Born in Eagle Point, Illinois; raised in Kansas; reporter for newspapers in Boston, Philadelphia and Denver; owned a newspaper in Cody, Wyoming; bought a ranch in Dryhead, Montana, in 1926 and lived there until 1950; died in Cody.
- Lockhart, John G(ilbert) (1891-1960) (stories) (assoc.)
- Born in Wimbledon; educated at Oxford; publisher; director, Philip Allan & Co.; literary advisor and later director of Geoffrey Bles Ltd.
- Lockhart, June (1925- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/June_Lockhart
- Lockhart, W(illiam) E(wart) (1846-1900) (art)
- See en.wikipedia.org/wiki/William_Ewart_Lockhart
- Lockwood, Amelius (Richard), 1st Baron Lambourne (1847-1928) (stories)
- See en.wikipedia.org/wiki/Amelius_Lockwood,_1st_Baron_Lambourne
- Lockwood, Ethel K(iefer) (1887-1973) (stories)
- Died in Sarasota, Florida.
- Lockwood, Myna [born Minnie Myna Stebbins] (1888-1987) (stories)
- Born in Rome, Iowa; married fiction author Walter S. Lockwood; an artist; died in Port Washington, New York.
- Lockwood, Samuel (fl. 1910s) (stories)
- Probably no relation to violinist Samuel Lockwood (?-1948).
- Lockwood, (Walter) Scammon ({c}1878-1955) (stories)
- Born in Brooklyn, circulation manager of Current Opinion, advertising manager, died in Manhattan.
- Lockwood, W(illiam) Lewis (1867-?) (stories)
- Born in Rhode Island; a newspaperman for some years on the Brooklyn Daily Eagle; later editor of the Daily Saratogan, Saratoga, New York; a playwright.
- Lockyer, [Sir] (Joseph) Norman (1836-1920) (stories)
- See en.wikipedia.org/wiki/Norman_Lockyer
- Loder, John [born William John Muir Lowe] (1898-1988) (stories)
- See en.wikipedia.org/wiki/John_Loder_(actor)
- Lodge, Henry Cabot (1850-1924) (stories)
- See en.wikipedia.org/wiki/Henry_Cabot_Lodge
- Lodge, Henry Cabot, Jr. (1902-1985) (stories)
- See en.wikipedia.org/wiki/Henry_Cabot_Lodge,_Jr.
- Lodge, [Sir] Oliver (Joseph) (1851-1940) (stories) (assoc.)
- Principal of the University of Birmingham.
- Lodi, Edward (fl. 1980s-2000s) (stories)
- See www.pw.org/content/edward_lodi_1
- Lodwick, John (Alan Patrick) (1916-1959) (stories)
- See bearalley.blogspot.co.uk/2010/02/john-lodwick.html
- Loeb, Sophie Irene [born Sophie Irene Simon] (1876-1929) (stories)
- See en.wikipedia.org/wiki/Sophie_Irene_Loeb
- Loehfelm, Bill (fl. 2000s-2010s) (stories)
- See billloehfelm.tumblr.com/authorbio
- Loenen-Ruiz, Rochita (fl. 2000s-2010s) (stories)
- See rcloenenruiz.com
- Loening, Grover (Cleveland) (1888-1976) (stories) (assoc.)
- See en.wikipedia.org/wiki/Grover_Loening
- Loeser, Katinka (1913-1991) (stories)
- See collguides.lib.uiowa.edu/?MSC0649
- Loew, Marcus (1870-1927) (stories) (assoc.)
- See en.wikipedia.org/wiki/Marcus_Loew
- Loewen, (Craig) Alan (1954- ) (stories)
- See literary-equine.livejournal.com
- Loewengard, Heidi Huberta Freybe [born Heidi Huberta Freybe] (1910-1981) (stories)
- Born in Germany; married Joseph Loewengard in England in 1934; married Hubert H. Griffith in 1936; married Sydney J. Lamon in 1957; adopted Katrin as her first name, perhaps in the 1940s; death registered as Katrin Lamon.
- Lofficier, Jean-Marc (1954- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/lofficier_jean-marc
- Lofficier, Randy (1953- ) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jean-Marc_Lofficier
- Lofquest, Charles C. (1882?-?) (stories)
- Writer, traveller. Born in Copenhagen, Denmark; lived in Rockford, Illinois.
- Lofting, Hugh (John) (1886-1947) (stories)
- See en.wikipedia.org/wiki/Hugh_Lofting
- Lofts, Norah (Ethel, née Robinson) (1904-1983) (stories)
- Note: Lofts was the name of her first husband; after he died and she married Robert Jorisch she continued to write as Lofts which then became a sort of pseudonym.
- Loftus, Peter (C.) (fl. 2000s-2010s) (stories)
- See irishcomics.wikia.com/wiki/Peter_C._Loftus
- Logan, Charles (1930- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/logan_charles
- Logan, John (David) (1961- ) (stories)
- See en.wikipedia.org/wiki/John_Logan_(writer)
- Logan, Margaret (1936- ) (stories)
- Living in Boston.
- Logan, Mary (Simmerson Cunningham) (1838-1923) (stories)
- See www.lib.niu.edu/1996/ihy960242.html
- Logan, Sean (fl. 1990s-2010s) (stories)
- See www.cometpress.us/authors/#slogan
- Loggia, Robert [born Salvatore Loggia] (1930-2015) (stories) (assoc.)
- See en.wikipedia.org/wiki/Robert_Loggia
- Login, [Lady] Lena (Campbell) (1820-1904) (stories) (assoc.)
- See sites.google.com/site/wateringburylocalhistory/blue-plaque-scheme/ladylenacampbelllogin1881-1904
- Logsdon, Syd (1950?- ) (stories)
- See www.sf-encyclopedia.com/entry/logsdon_syd
- Logue, Mary (Louise) (1952- ) (stories) (assoc.)
- See www.sf-encyclopedia.com/entry/logue_mary
- Lohr, Marie (1890-1975) (stories) (assoc.)
- See en.wikipedia.org/wiki/Marie_Lohr
- Lohrman, Paul; house pseudonym (fl. 1950s) (stories)
- See www.sf-encyclopedia.com/entry/lohrman_paul
- Lomas, Robert (1871-1939) (stories) (assoc.)
- See www.quarlton.co.uk/pender/
- Lomax, John A(very) (1867-1948) (stories) (assoc.)
- See en.wikipedia.org/wiki/John_Lomax
- Lomax, W(illiam) J(oseph) (1863-1929) (stories)
- Born in Hereford, England; died in Richmond; had B.A. from St. John College, Cambridge.
- Lombard, Carole [born Jane Alice Peters] (1908-1942) (stories) (assoc.)
- See en.wikipedia.org/wiki/Carole_Lombard
- Lombard, Louis (1861-1927) (stories)
- See www.sf-encyclopedia.com/entry/lombard_louis
- Lombardi, Nicola (fl. 2010s) (stories)
- See www.nicolalombardi.com
- Lombroso, Cesare [born Ezechia Marco Lombroso] (1835-1909) (stories)
- See en.wikipedia.org/wiki/Cesare_Lombroso
- London, Charmian (Kittredge) (1871-1955) (stories)
- See en.wikipedia.org/wiki/Charmian_London
- London, Jack [born John Griffith Chaney] (1876-1916) (stories) (assoc.)
- See en.wikipedia.org/wiki/Jack_London
- London, Joan (1901-1971) (stories)
- Daughter of Jack London, wife of Barney Mayes.
- London, Jordan Hamessley (fl. 2010s) (stories)
- See www.publishingcrawl.com/team-member/jordan-hamessley-london/