Michelangelo, nicknamed Mike or Mikey, is a superhero and one of the four main characters of the Teenage Mutant Ninja Turtles comics and all related media. Michelangelo is characterized as the most naturally gifted of the four brothers but prefers to have more leisure rather than train. The most jocular and energetic of the team, he is shown to be rather immature; he is known for his wisecracks, quick-wit, optimism, and love of skateboarding and pizza. He is usually depicted wearing an orange eye mask. His signature weapons are a single or dual nunchaku, though he has also been portrayed using other weapons, such as a grappling hook, manriki-gusari, kusarigama, tonfa, and a three-section staff. He is commonly portrayed in media as speaking with a California accent and is most associated with the "Cowabunga" expression that became a pop culture phenomenon.

Teenage Mutant Ninja Turtles, commonly abbreviated as TMNT, is a media franchise created by the comic book artists Kevin Eastman and Peter Laird. It follows Leonardo, Donatello, Raphael and Michelangelo, four anthropomorphic turtle brothers trained in ninjutsu who fight evil in New York City. Supporting characters include the turtles' sensei, a rat called Splinter, their human friends April O'Neil and Casey Jones, and enemies such as Baxter Stockman, Krang, and their archenemy, the Shredder.