- Lafia, John (1957-2020) (items)
- See en.wikipedia.org/wiki/John_Lafia
- Lagor, Kelly (fl. 2010s-2020s) (items) (chron.)
- See www.lagoraphobia.com
- Lahor, Jean; pseudonym of Henry Cazalis (1840-1909) (items) (chron.)
- See en.wikipedia.org/wiki/Henri_Cazalis
- Lahti, Eric (fl. 2010s) (items) (chron.)
- See ericlahti.com
- Lai, Larissa (1967- ) (items) (chron.)
- Born in California; long resident in Canada.
- Laidlaw, Marc (1960- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/laidlaw_marc
- Laidlow, Jonathan (fl. 1990s-2020s) (items) (chron.)
- See jonlaidlow.com
- Laik, Vincent (fl. 2010s) (items) (chron.)
- See www.vincentlaik.com
- Laine, Christopher (fl. 2020s) (items)
- See www.christopherlaine.net
- Laing, Alexander (Kinnan) (1903-1976) (items)
- See www.sf-encyclopedia.com/entry/laing_alexander
- Laing, R(onald) D(avid) (1927-1989) (items)
- See en.wikipedia.org/wiki/R._D._Laing
- Lairamore, Dawn (fl. 2010s) (items)
- See www.dawnbooks.com
- Lairis, Mya (fl. 2010s) (items) (chron.)
- See www.myalairis.com
- Laish, Llanwyre (fl. 2010s) (items) (chron.)
- See stuff4nonsense.wordpress.com
- Lait, Jack; [i.e., Jacquin Leonard Lait] (1881-1954) (items) (chron.)
- Birth name probably Jacob Lait. Born in New York City; died in Beverly Hills, California; reporter, editor and executive with Hearst newspapers for more than 50 years.
- Laity, K(ate) A. (fl. 1990s-2010s) (items) (chron.)
- See kalaity.com
- Lake, David J(ohn) (1929-2016) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lake_david_j
- Lake, Jay; [i.e., Joseph Edward Lake, Jr.] (1964-2014) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lake_jay
- Lake, Lissanne (fl. 1990s-2010s) (items) (chron.)
- See mythicdelirium.com/about-the-artist-4
- Lake, Nick (1979- ) (items)
- See www.unitedagents.co.uk/nick-lake
- Lake, Paul (1951- ) (items) (chron.)
- Professor of English and creative writing at Arkansas Tech University; poet and essayist.
- Lakofka, Lenard (1944-2020) (items) (chron.)
- See en.wikipedia.org/wiki/Len_Lakofka
- Lale, Erin (fl. 1980s-2010s) (items) (chron.)
- See sites.google.com/site/erinlaleauthorpage
- Laliberte, Mark (fl. 2020s); used pseudonym MA|DE (items) (chron.)
- See www.marklaliberte.com
- Lalumière, Claude (1966- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lalumiere_claude
- Lam, Laura (R.) (fl. 2010s-2020s) (items) (chron.)
- See lrlam.co.uk
- LaMalfa, Tony (fl. 2020s) (items) (chron.)
- See tonylamalfa.com
- LaManna, Vincent (fl. 2010s) (items) (chron.)
- See madnessridesthestarwind.tumblr.com
- Lamb, Alexander (fl. 2000s-2010s) (items) (chron.)
- See alexlamb.com
- Lamb, Harold A(lbert) (1892-1962) (items)
- See pulpflakes.blogspot.com/2012/05/harold-lamb-adventure-short-story.html
- Lamb, Hugh (Charles) (1946-2019) (items) (chron.)
- See hughlamb.com
- Lambdin, George Cochran (1830-1896) (items) (chron.)
- See en.wikipedia.org/wiki/George_Cochran_Lambdin
- Lambe, [Dr.] Dean R(odney) (1943- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lambe_dean_r
- Lamberson, Gregory (1964- ) (items) (chron.)
- See www.goodreads.com/author/show/497788.Gregory_Lamberson
- Lambert, Verity (1935-2007) (items)
- See en.wikipedia.org/wiki/Verity_Lambert
- Lamming, R(oberta) M. (1948- ) (items) (chron.)
- See en.wikipedia.org/wiki/R._M._Lamming
- Lamont, Duncan (fl. 1950s) (items) (chron.)
- possibly a pseudonym.
- Lamothe, Lori (fl. 2020s) (items) (chron.)
- See www.pw.org/directory/writers/lori_lamothe
- L’Amour, Louis (Dearborn) (1908-1988); previously known as Louis Dearborn LaMoore (items) (chron.)
- See en.wikipedia.org/wiki/Louis_L'Amour
- Lampert, Godfrey (1898-1968) (items) (chron.)
- See tellersofweirdtales.blogspot.com/2012/05/walter-f-mccanless-1876-1965.html
- Lamplighter, L. Jagi (fl. 1990s-2010s) (items) (chron.)
- See en.wikipedia.org/wiki/L._Jagi_Lamplighter
- Lampton, Chris(topher F.) (1950- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lampton_chris
- Lamsley, Terry (1941- ) (items) (chron.)
- See tartarus.com/l14.htm
- Lanagan, Margo (1960- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lanagan_margo
- Lancaster, R(obert) Linwood (, Jr.) (1904-1978) (items) (chron.)
- See tellersofweirdtales.blogspot.com/2023/09/the-eyrie-september-1923.html
- Lance, John M. (fl. 2000s-2010s) (items) (chron.)
- See www.johnmlance.com
- Lance, Kathryn (1943- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lance_kathryn
- Lancour, Gene; pseudonym of Gene Louis Fisher (1947- ) (items)
- See www.sf-encyclopedia.com/entry/lancour_gene
- Landale, Zoë (1952- ) (items) (chron.)
- See www.zoelandalewriter.com
- Landau, Jacob (1917-2001) (items) (chron.)
- See en.wikipedia.org/wiki/Jacob_Landau_(artist)
- Landgraf, Ken (1950- ) (items) (chron.)
- See en.wikipedia.org/wiki/Ken_Landgraf
- Landis, Arthur H(arold) (1917-1986) (items) (chron.)
- See www.sf-encyclopedia.com/entry/landis_arthur_h
- Landis, Geoffrey A(lan) (1955- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/landis_geoffrey_a
- Landis, John (David) (1950- ) (items)
- See en.wikipedia.org/wiki/John_Landis
- Landman, Jan Bee (1948- ) (items) (chron.)
- See www.jlandman.org
- Landon, Kristin (Paulson) (1958-2019) (items)
- See www.sf-encyclopedia.com/entry/landon_kristin
- Landry, Jessica (fl. 2010s-2020s) (items) (chron.)
- See jesslandry.com
- Landry, Shane (fl. 2010s) (items) (chron.)
- See www.shanelandrybooks.com
- Landsborough, Gordon Holmes (1913-1983) (items) (chron.)
- See en.wikipedia.org/wiki/Gordon_Landsborough
- Lane, Andy; [i.e., Andrew Lane] (1963- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lane_andy
- Lane, C. S. (fl. 2010s) (items) (chron.)
- See cslanefantasyauthor.webs.com
- Lane, M(illicent) Travis (1934- ) (items) (chron.)
- See en.wikipedia.org/wiki/M._Travis_Lane
- Lane, Mary E. Bradley (items)
- See www.sf-encyclopedia.com/entry/lane_mary_e_bradley
- Lane, Tina Marie (fl. 2010s) (items) (chron.)
- See www.beneath-ceaseless-skies.com/artwork/page/4/
- Lanford, Mickey; [i.e., M. A. Lanford] (fl. 1970s-1980s) (items) (chron.)
- Retired registered physical therapist in Texas.
- Lang, Allen Kim (1928- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lang_allen_kim
- Lang, Amanda Cecelia (fl. 2010s-2020s) (items) (chron.)
- See www.amandacecelialang.com