Mike Lorenzen is a game designer and programmer, most known in the 1980's. He started at Atari, but defected over to Activision not too long after Activision was founded. He also participated in the founding of Accolade.

He was the lead engineer involved in the Accolade re-engineering of the Sega Genesis game console, so the company would be able to bypass the Genesis localizing chips so they would be able to manufacture their games without paying Sega's licensing fees.