- Lathwell, Alan (fl. 1990s-2010s) (items) (chron.)
- See alanlathwell.deviantart.com
- Latimer, Rebecca M. (fl. 2010s) (items) (chron.)
- See www.rebeccamlatimer.com
- Latner, Alexis Glynn (fl. 1990s-2000s) (items) (chron.)
- See www.alexisglynnlatner.com
- La Tourette, Aileen (1946- ) (items)
- See www.sf-encyclopedia.com/entry/la_tourette_aileen
- Latter, Albert L. (1920-1997) (items)
- See www.nytimes.com/1997/06/27/us/albert-l-latter-76-physicist-and-expert-on-nuclear-arms.html?_r=0
- Lauden, S. W. (fl. 2010s) (items) (chron.)
- See badcitizencorporation.com
- Lauderdale, Kevin (fl. 2000s-2010s) (items) (chron.)
- See en.wikipedia.org/wiki/Kevin_Lauderdale
- Laufenberg, Keith G. (fl. 2010s) (items) (chron.)
- See www.kglaufenberg.com
- Laughlin, Clarence John (1905-1985) (items) (chron.)
- See en.wikipedia.org/wiki/Clarence_John_Laughlin
- Laumer, (John) Keith (1925-1993) (items) (chron.)
- See www.sf-encyclopedia.com/entry/laumer_keith
- Laurel, Karissa (fl. 2010s) (items) (chron.)
- See www.karissalaurel.com
- Laurence, Ashley (1966- ) (items)
- See en.wikipedia.org/wiki/Ashley_Laurence
- Laurie, Roberta (fl. 2000s-2020s) (items) (chron.)
- See www.creativewhispers.ca
- Lauriston, Victor; [born William Edward Park] (1881-1973) (items) (chron.)
- Born in Fletcher, Ontario.
- Lautréamont, Comte de; pseudonym of Isidore Ducasse (1846-1870) (items) (chron.)
- See en.wikipedia.org/wiki/Comte_de_Lautréamont
- LaValle, Victor (1972- ) (items) (chron.)
- See en.wikipedia.org/wiki/Victor_LaValle
- Laven, Karen Julig (fl. 1990s-2000s) (items) (chron.)
- See prabook.com/web/karen_julig.laven/635794
- Lavender, David (Sievert) (1910-2003) (items) (chron.)
- See www.encyclopedia.com/arts/educational-magazines/lavender-david-sievert-1910-2003
- Lavender, Isiah, III (fl. 2010s) (items)
- See www.english.lsu.edu/English_People/item62685.html
- Laverty, Donald; pseudonym of James Blish & Damon Knight (fl. 1940s) (items) (chron.)
- See www.sf-encyclopedia.com/entry/laverty_donald
- Lavrova, Nadia; [born Nadia Lavrova Shapiro] (1897-1989) (items) (chron.)
- See tellersofweirdtales.blogspot.com/2023/09/weird-tales-september-1923.html
- Law, Stephanie Pui-Mun (1976- ) (items) (chron.)
- See en.wikipedia.org/wiki/Stephanie_Pui-Mun_Law
- Lawhead, Stephen R. (1950- ) (items)
- See www.sf-encyclopedia.com/entry/lawhead_stephen_r
- Lawless, Shauna (fl. 2020s) (items)
- See shaunalawless.com
- Lawlor, Harold (1910-1992) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lawlor_harold
- Lawlor, Layla (fl. 2000s-2020s) (items) (chron.)
- See laylalawlor.com
- Lawrence, Casey (fl. 2020s) (items) (chron.)
- See clawrenc.medium.com
- Lawrence, David (fl. 2000s) (items) (chron.)
- See www.infinitedot.com
- Lawrence, Don(ald Southam) (1928-2003) (items)
- See ukcomics.wikia.com/wiki/Don_Lawrence_(1928-2003)
- Lawrence, Francis (1971- ) (items)
- See en.wikipedia.org/wiki/Francis_Lawrence
- Lawrence, George A(lfred) (1827-1876) (items)
- See en.wikipedia.org/wiki/George_Alfred_Lawrence
- Lawrence, John Shelton (1938- ) (items)
- See en.wikipedia.org/wiki/John_Shelton_Lawrence
- Lawrence, Judith Ann (1940- ); also known as Judith Ann Lawrence Blish (items) (chron.)
- See en.wikipedia.org/wiki/J._A._Lawrence
- Lawrence, Louise; pseudonym of Elizabeth Holden (1943-2013) (items)
- See www.sf-encyclopedia.com/entry/lawrence_louise
- Lawrence, Shannon (fl. 2010s) (items) (chron.)
- See thewarriormuse.blogspot.co.uk
- Laws, Robin D. (1964- ) (items) (chron.)
- See en.wikipedia.org/wiki/Robin_Laws
- Lawson, Anthea; pseudonym of Anthea Lawrence & Lawson Dumbeck (fl. 2010s) (items) (chron.)
- See anthealawson.com
- Lawson, Chris (1966- ) (items) (chron.)
- See en.wikipedia.org/wiki/Chris_Lawson
- Lawson, John (Arthur) (1969- ) (items) (chron.)
- See witchember.com
- Lawton, R. T. (fl. 1990s-2020s) (items) (chron.)
- See www.smashwords.com/profile/view/RTLawton
- Lay, Anaea (fl. 2010s-2020s) (items) (chron.)
- See www.anaealay.com
- Lay, Cam Rhys (fl. 2010s) (items) (chron.)
- See www.camrhyslay.com
- Lay, Kathryn (fl. 1990s-2000s) (items) (chron.)
- See www.kathrynlay.com/
- Laycraft, Adria (fl. 2010s) (items) (chron.)
- See www.adrialaycraft.com
- Layng, Charles (1895-1970) (items) (chron.)
- See desturmobed.blogspot.co.uk/2012/02/charles-layng.html
- Lazarev, Andrey (fl. 2010s) (items) (chron.)
- See ardenrey.deviantart.com
- Lazcano, Ignacio Bazán (fl. 2010s-2020s) (items) (chron.)
- See neisbeis.deviantart.com
- LaZebnik, Philip (1953- ) (items)
- See en.wikipedia.org/wiki/Philip_LaZebnik
- Lazenby, Norman (Austin) (1914-2003); used pseudonym Hamilton Donne (items) (chron.)
- See www.sf-encyclopedia.com/entry/lazenby_norman_a
- Lê, Jenna (fl. 2010s-2020s) (items) (chron.)
- See en.wikipedia.org/wiki/Jenna_Lê
- Le, Khoa (fl. 2000s) (items) (chron.)
- See khoale.daportfolio.com
- Lea, George Daniel (fl. 2010s-2020s) (items) (chron.)
- See www.strangeplaygrounds.com
- Lea, Trisha (fl. 2010s) (items) (chron.)
- See www.authortrishalea.wordpress.com
- Leach, (Leonard) Douglas (1898-1987) (items) (chron.)
- See bearalley.blogspot.co.uk/2008/01/douglas-leach.html
- Leacock, Dina (fl. 1990s-2020s); used pseudonym Diane Arrelle (items) (chron.)
- See dinaleacock.com
- Leacock, Stephen (Butler) (1869-1944) (items) (chron.)
- See en.wikipedia.org/wiki/Stephen_Leacock
- Leahy, John (fl. 2010s-2020s) (items) (chron.)
- See www.smashwords.com/profile/view/johnleahy
- Leahy, John Martin (1886-1967) (items) (chron.)
- See www.sf-encyclopedia.com/entry/leahy_john_martin
- Learned, Walter (1847-1915) (items)
- See www.bartleby.com/library/bios/3731.html
- Leary, Linda (fl. 2010s) (items) (chron.)
- See sites.google.com/a/newmyths.com/nmwebsite/contributors/linda-leary
- Lebak, Jane; [née Hamilton] (fl. 1990s-2010s); previously known as Jane Hamilton (items) (chron.)
- See janelebak.com
- Lebbon, Tim (1969- ) (items) (chron.)
- See www.sf-encyclopedia.com/entry/lebbon_tim
- Le Berthon, Theodore (1892-1960) (items) (chron.)
- See tellersofweirdtales.blogspot.co.uk/2016/02/theodore-le-berthon-1892-1960-part-one.html
- LeBlanc, Deborah (1957- ) (items) (chron.)
- See en.wikipedia.org/wiki/Deborah_LeBlanc
- LeBoeuf, Nicole J. (fl. 2010s-2020s) (items) (chron.)
- See www.nicolejleboeuf.com
- Lecard, Marc (fl. 2000s-2010s) (items) (chron.)
- See www.marclecard.com
- le Carré, John; pseudonym of David Cornwell (1931- ) (items)
- See en.wikipedia.org/wiki/John_le_Carré