- G. K. Chesterton
- Gabby Frost
- Gabby Zapata
- Gabe Cole Novoa
- Gabe Henry
- Gabi Jones
- Gabi Swiatkowska
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- Gabriel Byrne
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- Gabrielle K. Byrne
- Gabrielle Korn
- Gabrielle Rifkind
- Gabrielle Vézina
- Gabrielle Zevin
- Gabrielle-Suzanne de Villeneuve
- Gaby Morgan
- Gaby Triana
- Gae Polisner
- Gael Hannan
- Gagne, Patric
- Gaia Cornwall
- Gail Collins
- Gail Tsukiyama
- Galia Bernstein
- Gamalai Ken Passi
- Gangaji
- Gardner Dozois
- Gareth L. Powell
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- Garima Srivastava
- Garrett Carr
- Garry Parsons
- Garth Greenwell
- Garth Jennings
- Garth Williams
- Gary Renard
- Gary Blythe
- Gary Busey
- Gary Crumpler
- Gary Gach
- Gary Gibson
- Gary J. Bass
- Gary Janetti
- Gary Paulsen
- Gary Swift
- Gaston Leroux
- Gatapanga Rangingu
- Gaur Gopal Das
- Gaurav Suri
- Gavin Aung Than
- Gavin Cullen
- Gavin Jackson
- Gavin Knight
- Gavin Presman
- Gavin Smith
- Gay Hendricks
- Geetanjali Behera
- Gemma Cairney
- Gemma Hogg
- Gemma Merino
- Gemma Morr
- Gemma Williams
- Gen Davidson
- Gen Muir
- Gena Cox
- Gene Baretta
- Gene Luen Yang
- Gene Luen Yang
- Gene Luen Yang; color by Lark Pien
- Gene Natali
- Gene Stone
- Gene Wolfe
- Genevieve Cogman
- Genevieve James-Martin
- Genevieve Ko
- Genevieve Kote
- Genevieve Muir
- Genevieve Webster
- Genevieve Wheeler
- Genie Espinosa
- Genki Kawamura
- Genna Tatu
- Gennady Spirin
- Genoveva Dimova
- Geoff Armstrong
- Geoff Barker
- Geoff Engelstein
- Geoff Kingston
- Geoff Lemon
- Geoff Manaugh
- Geoff Shreeves
- Geoffrey Blainey
- Geordie Williamson
- George Bernard Shaw
- George Brewington
- George Christie
