Earthworm Jim is the first installment of the Earthworm Jim video game series. The game was developed by Shiny Entertainment in association with Playmates Toys. The main designer was Doug TenNapel, who also voiced the eponymous character in the game.

Earthworm Jim was first released for the Sega Mega Drive/Genesis on August 2, 1994. The game was subsequently ported to Windows 95, the Sega Master System, Sega Game Gear, and the Nintendo SNES, Game Boy, and years later, the Game Boy Advance and mobile devices.

Earthworm Jim is a "run and gun" platform video game, with some exceptions, starring an earthworm named Jim in a robotic suit who battles evil using his mutated worm head as a whip, his Plasma Blaster and Pocket Rocket. It became known for its Hitchhiker's-like bizarre absurdity, and its horror comedy.

The game was critically acclaimed upon its original release. To tie in with the game there was an introductory comic from Shiny, a comic book mini-series from Marvel, an artwork book, and the Playmates Toys toy-line. The most significant legacy of the game was perhaps the animated television series which lasted for two seasons.