Authors
- Karen Haber
- Ammar Habib
- A. J. Hackwith
- Joe Haldeman
- Philip Haldeman
- Kelly Hale
- Sebastian Haley
- Steven Hall
- Oakley Hall
- Polly Hall
- Caroline Hall
- Dane Hallett
- Mags L Halliday
- Brett Halliday
- Dale Halvorsen
- David Hambling
- Barbara Hambly
- Pete Hamill
- Shaun Hamill
- Edmond Hamilton
- Donald Hamilton
- Frank Hampson
- Elizabeth Hand
- Scott Handcock
- Rich Handley
- Edward B. Hanna
- Sophie Hannah
- James R. Hansen
- Jimmy Hansen
- Richard Hansom
- Lucie McKnight Hardy
- Don Harley
- Joanne Harris
- John Harris
- Rachel Harrison
- Alix Harrow
- Debbie Harry
- Johnny Hart
- Andy Hartnell
- John Harvey
- Aaron Harvey
- Antoinette Haselhorst
- Dean Haspiel
- Henry Hasse
- Jessie Hassett
- David Hasteda
- Christopher Hastings
- Matt Hatton
- Scott Hawkins
- Samantha Hayes
- Gar Anthony Haywood
- Joan He
- Maria Dahvana Headley
- Marcus Hearn
- Lisa Heathfield
- Michael Heatley
- Drew Heatley
- Alan Hebden
- Heidi Heilig
- Liz Lee Heinecke
- Robert Heinlein
- Jenna Helland
- John G. Hemry
- Randy Henderson
- Lauren Henderson
- Alice Henderson
- Douglas Henderson
- Grady Hendrix
- Darryl Henley
- Caroline Hennessy
- Christina Henry
- Brian Herbert
- Anthony Hern
- Mario Hernandez
- Gilbert Hernandez
- Jaime Hernandez
- Adriana Herrera
- Karen Heuler
- Jamie Hewlett
- Spencer Hickman
- Stephen Hickman
- Pablo Hidalgo
- John Higgins
- Charlie Higson
- Tomás Hijo
- Sarah Hilary
- M.T. Hill
- Russell Hill
- Joe Hill
- James Tate Hill
- James Hilton
- Jim C. Hines
- Glen Hirshberg
- Bryan Hitch
- John C. Hocking
- Mark Hodder
- Brian Hodge
- Craig Hodgetts
- William Hope Hodgson
- Mary Hoffman
- Angie Hoffmeister
- Burne Hogarth
- Stark Holborn
- Jim Holdaway
- Nancy Holder
- Jesse J. Holland
- Erika Hollice
- Susi Holliday
- Richard Holliss
- Verity M. Holloway
- Robert Holtom
- Tetsuya Honda
- Andrew Hook
- Yaroslav Horak
- Cole Horton
- Kyle Hotz
- Jason M. Hough
- Dan Houser
- Kat Howard
- Zach Howard
- Samantha Lee Howe
- Paul Howes
- Hugh Howey
- Bryan Howie
- Rachel Howzell Hall
- Polly Ho-Yen
- Sam Hudecki
- Noela Hueso
- Tanya Huff
- David Hughes
- Rian Hughes
- Matthew Hughes
- Rhys Hughes
- Simon Hugo
- Charlie Human
- Christian Humberg
- E. Howard Hunt
- June Hur
- Kameron Hurley
- Matt Hurwitz
- Christopher Husberg