The Beyonder is a fictional cosmic entity appearing in American comic books published by Marvel Comics. Created by writer Jim Shooter and artist Mike Zeck, the Beyonder first appeared in Secret Wars #1 as an unseen, nigh-omnipotent being from outside the multiverse who kidnapped the heroes and villains of the Marvel Universe to have them do battle on Battleworld, a fictional planet created by the Beyonder. The character plays a more antagonistic role in the 1985 sequel, Secret Wars II, in which he takes human form to learn about desire but threatens to destroy the multiverse out of increasing frustration.

Marvel Super Heroes Secret Wars, commonly known as Secret Wars, is a 12-issue American comic book crossover limited series published from May 1984 to April 1985 by Marvel Comics. The series was written by Jim Shooter, with art by Mike Zeck and Bob Layton. It was tied in with a similarly-named toy line from Mattel and a role-playing game of the same name from TSR, Inc.