- L’Amour, Louis
- La Mettrie, Julien Offray de
- Lafferty, R.A.
- Latorre, José María
- Lawrence, Thomas Edward
- Le Fanu, Joseph Sheridan
- Le May, Alan
- Leblanc, Maurice
- Lee, Vernon
- Leonard, Elmore
- Leroux, Gaston
- Lewis, Matthew G.
- Lichtenberg, Georg Christoph
- Ligotti, Thomas
- London, Jack
- López, Guillem
- Lord Dunsany
- Louÿs, Pierre
- Lovecraft, Howard Phillips
- Lupoff, Richard A.
