Godzilla: Unleashed is a 3D fighting video game based on Toho's Godzilla franchise. It was developed by Pipeworks Software and published by Atari. The game was released in North America on November 20, 2007 for PlayStation 2; and on December 5 of the same year for the Wii. A Nintendo DS version, titled Godzilla Unleashed: Double Smash, was also released in North America on December 5, 2007.

Godzilla is a Japanese monster, or kaiju, media franchise consisting of films, television series, novels, comic books, video games, and other merchandise. The franchise is centered on the fictional kaiju Godzilla, a prehistoric reptilian monster awakened and powered by nuclear radiation. The franchise is recognized by the Guinness World Records as the "longest continuously running film franchise", having been in ongoing production since 1954, with several hiatuses of varying lengths. The film franchise consists of 38 films: 33 Japanese films produced and distributed by Toho Co., Ltd.; and five American films, the first of which was produced by TriStar Pictures and the remaining four by Legendary Pictures, with the latest being released in March 2024.