Authors
- Sharon Gosling
- James Goss
- Kim Gottlieb-Walker
- Amanda Gowin
- Kevin Grace
- Heather Graham
- Seth Grahame-Smith
- Alan Grant
- Helen Grant
- Mira Grant
- Muriel Gray
- Mick Gray
- Danny Graydon
- Robert Graysmith
- Simon R. Green
- Louis Greenberg
- Robert Greenberger
- Daryl Gregory
- Lois H. Gresh
- Scott Tracy Griffin
- Sarah Maria Griffin
- Susan Griffith
- Clay Griffith
- David Grigg
- Paul Grist
- Matt Groening
- Michael Gross
- Jeff Grubb
- Simon Guerrier
- Marc Guggenheim
- Allan Guthrie
- Karen Haber
- Joe Haldeman
- Philip Haldeman
- Kelly Hale
- Oakley Hall
- Steven Hall
- Dane Hallett
- Mags L Halliday
- Brett Halliday
- David Hambling
- Barbara Hambly
- Pete Hamill
- Donald Hamilton
- Edmond Hamilton
- Frank Hampson
- Scott Handcock
- Rich Handley
- Edward B. Hanna
- James R. Hansen
- Jimmy Hansen
- Don Harley
- Joanne Harris
- John Harris
- Johnny Hart
- Andy Hartnell
- Antoinette Haselhorst
- Dean Haspiel
- Henry Hasse
- Matt Hatton
- Maria Dahvana Headley
- Marcus Hearn
- Drew Heatley
- Michael Heatley
- Alan Hebden
- John G. Hemry
- Douglas Henderson
- Randy Henderson
- Alice Henderson
- Christina Henry
- Brian Herbert
- Anthony Hern
- Jaime Hernandez
- Gilbert Hernandez
- Mario Hernandez
- Jamie Hewlett
- Stephen Hickman
- Pablo Hidalgo
- John Higgins
- Russell Hill
- M. T. Hill
- Joe Hill
- James Hilton
- Jim C. Hines
- Bryan Hitch
- Mark Hodder
- Brian Hodge
- Craig Hodgetts
- William Hope Hodgson
- Burne Hogarth
- Jim Holdaway
- Nancy Holder
- Jesse J. Holland
- Richard Holliss
- Tetsuya Honda
- Yaroslav Horak
- Kyle Hotz
- Jason M. Hough
- Dan Houser
- Zach Howard
- Paul Howes
- Hugh Howey
- Bryan Howie
- Rachel Howzell Hall
- Noela Hueso
- Tanya Huff
- Matthew Hughes
- David Hughes
- Rian Hughes
- Charlie Human
- Christian Humberg
- E. Howard Hunt
- Matt Hurwitz
- Christopher Husberg
- Jacky Ickx
- Debra Jo Immergut
- Simon Ings
- Justina Ireland
- Alex Irvine
- John Jackson Miller
- S. Jae-Jones
- Jaime
- John Jakes
- Lynne Jamneck
- Klaus Janson
- N. K. Jemisin
- Maureen Jennings
- Jock
- William Johnson
- Jean Johnson
- Stuart Johnson
- Paul Johnson
- Mike Johnson
- Staz Johnson
- Antony Johnston
- Carole Johnstone
- Tyler Jones
- Stephen Jones
- Mark Howard Jones
- Gwyneth Jones
- Tim Jones
- Sydney Jordan
- S. T. Joshi
- Phil Jourdan
- William Joyce
- Jr
- Richard Kadrey
- Paul Kane
- Drew Karpyshyn
- Kirsten Kaschock