Bizarro is a super villain who appears in comic books published by DC Comics. The character was created by writer Otto Binderand artist George Papp as a "mirror image" of Superman and first appeared in Superboy #68 (1958). Since then, various iterations of Bizarro have appeared in which he frequently portrayed as an antagonist to Superman.

Debuting in the Silver Age of Comic Books (1956 - c. 1970), the character has appeared in both comic books and graphic novels, and other DC Comics-related products such as animated and live-action television series, trading cards, toys, and video games.

Bizarro was Ranked #25 on IGN's List of 100 Top Comic Book Villains, and the term itself has entered the lexicon beyond pop culture.