G-Fan, often typeset as G-FAN, is a quarterly fanzine devoted to the Godzilla film franchise and other kaijū franchises such as Gamera and the Ultra Series. G-FAN is published by Daikaiju Enterprises Ltd. It was founded in 1993 by Canadian J.D. Lees, who has continued as its publisher and editor to the present day. At 115 issues over nearly 24 years, G-Fan is believed to be the longest running continuously published monster/sci-fi-related fanzine of all time.
G-Fan typically features film retrospectives and analyses, interviews with actors and creators in the kaiju genre, current news relating to the kaiju genre, fan artwork, fiction, and product news and reviews. Issues usually run from 70 to 80 pages in length.