Authors
- Lynne Jamneck
- Klaus Janson
- N. K. Jemisin
- Maureen Jennings
- Louise Jensen
- Jock
- William Johnson
- Stuart Johnson
- Staz Johnson
- Jean Johnson
- Paul Johnson
- Mike Johnson
- Antony Johnston
- Carole Johnstone
- Stephen Jones
- Tyler Jones
- Gwyneth Jones
- Tim Jones
- Mark Howard Jones
- Sydney Jordan
- S. T. Joshi
- Phil Jourdan
- William Joyce
- Jr
- Richard Kadrey
- Paul Kane
- Drew Karpyshyn
- Kirsten Kaschock
- Heather Kassner
- David Kaufman
- Nicholas Kaufmann
- Paul Kearney
- Day Keene
- Brian Keene
- Keffy R. M. Kehrli
- David H. Keller, M.D.
- James Patrick Kelly
- Gary Kemble
- Paul S. Kemp
- Cam Kennedy
- Steven L Kent
- Mike Kenwood
- Sherrilyn Kenyon McQueen
- Jake Kerr
- Greg Keyes
- Rajan Khanna
- Chip Kidd
- Caitlin R. Kiernan
- Nancy Kilpatrick
- Laurie R King
- J. Robert King
- Stephen King
- William King
- Jack Kirby
- Barry Kitson
- Michael Klastorin
- Neil Kleid
- Leslie Klinger
- Leslie S Klinger
- Richard Knaak
- Nicholas Knight
- Sam Knight
- Chris Knowles
- J. C. Koch
- Joseph Koenig
- David Koepp
- Dean R Koontz
- Susan Korman
- Ted Kosmatka
- Mary Robinette Kowal
- David J. Kowalski
- Nancy Kress
- Eric Kripke
- Neil Krolicki
- Paul Kupperberg
- Michael Kurland
- Sergey Kuznetsov
- Nick Kyme
- Mercedes Lackey
- Fabio Laguna
- Sam Lake
- Andrew Lane
- John Langan
- John Lange
- David Langford
- Graham Langridge
- Kasey Lansdale
- Joe R Lansdale
- Alice LaPlante
- Tanya Lapointe
- Jesse Lasky
- Mark A. Latham
- Jim Lawrence
- James Lawrence
- Stephen Laws
- Thang Le
- Tim Lebbon
- Ang Lee
- Tony Lee
- Jim Lee
- Stan Lee
- Dennis Lehane
- Steve Leialoha
- Stephen Leigh
- Richard Lemmer
- V. H. Leslie
- Barbra Leslie
- Jonathan Lethem
- David D. Levine
- David Levy
- Roger Levy
- Kate Lewis
- D. F. Lewis
- Steve Lieber
- Tony Liebhard
- Brian Lillie
- Evangeline Lilly
- Damon Lindelof
- Maureen Lindley
- Laura Lipmman
- David Liss
- Alison Littlewood
- Ken Liu
- Wayne Lo
- Morgan Lockhart
- Steve Lockley
- Inverna Lockpez
- John Logan
- Andrew Loomis
- Solano Lopez
- Marina J. Lostetter
- H.P. Lovecraft
- Charles Lovecraft
- James Lovegrove
- Tim Lucas
- George Lucas
- Rory Lucey
- José Luis García-López
- Brian Lumley
- Richard Lupoff
- Lisa Lutz
- Scott Lynch
- Tom Lynch
- Gayle Lynds
- Christine Lynn Herman
- Jonathan Maberry
- Ralph Macchio
- Carmen Maria Machado
- Helen MacInnes
- David Mack