Dengeki G's Magazine (電撃G's magazine) is a Japanese magazine published by ASCII Media Works (formerly MediaWorks) and sold monthly on the thirtieth that primarily contains information on bishōjo games, but also includes an entire section on anime based on bishōjo games, and serializes manga and light novels based on such games. The "G's" in the title stands for "Gals" and "Games". The magazine is known for hosting reader participation games whose outcome is directly influenced by the people who read the magazine; such games include Sister Princess, and Strawberry Panic!. Dengeki G's Magazine first went on sale on 26 December 1992 with the February 1993 issue under the title Dengeki PC Engine, which changed to the current title in 2002. A special edition spin-off version called Dengeki G's Festival! is published in irregular intervals and each issue focuses on a specific bishōjo game. Four other special edition versions under the Festival! name are Dengeki G's Festival! Comic, Dengeki G's Festival! Deluxe, Dengeki G's Festival! Anime, and Dengeki Festival! Heaven. Dengeki G's Magazine's sister magazine is Dengeki Girl's Style, which publishes information on otome games, targeted towards females.

Despite the self-describing "magazine" description, the publication has over 350 pages an issue. About half of the magazine pages are colored and contain information about games or anime; the remaining pages, placed at the end of the magazine, are serialized manga series. Unlike typical Japanese publications, pages are turned from right to left for the first half of the magazine, but this is switched to the traditional left to right configuration when reading the manga series. Dengeki G's Magazine celebrated its fifteenth year of publication in 2007 and its 200th release with the October 2007 issue.