Krazy Ivan is a mecha first-person shooter video game developed and published by Psygnosis. It was released for Windows, Sega Saturn and PlayStation in 1996.

The player takes the role of Ivan Popovich, a Russian soldier controlling a giant mechanical suit, defending the Earth from robotic aliens. The game consists of five zones: Russia, Saudi Arabia, France, USA and Japan. The game has an interface at the end of each zone allowing the player to spend the game's form of experience points (power cores) on upgrades and weapons.

The game uses full motion video for its intro movie and a cut-scene between each level. The in-game soundtrack was written and produced by Mike Clarke and Tim Wright.