Teenage Mutant Ninja Turtles is an American comic book published by Mirage Studios since 1984. Originally conceived by Kevin Eastman and Peter Laird as a one-off parody, the comic's popularity has gone on to inspire three television series, numerous video games, four feature films, and a wide range of toys and merchandise.

Over the years, the Turtles have appeared in numerous cross-overs with other successful independent comics characters, including Dave Sim's Cerebus, Erik Larsen's Savage Dragon, Bob Burden's Flaming Carrot, and Stan Sakai's Usagi Yojimbo.