War is the name of three fictional characters, who are supervillains appearing in American comic books published by Marvel Comics. Two are discussed here: both members of the Four Horsemen of Apocalypse. The first War and Abraham Kieros. The title was also held by the mutant Gazer and, briefly, by Bruce Banner, the Hulk.

Warren Kenneth Worthington III is a superhero appearing in American comic books published by Marvel Comics. Created by writer Stan Lee and artist Jack Kirby, the character first appeared in The X-Men #1. Warren is a founding member of the X-Men, having used the moniker Angel. Later stories would reveal that prior to joining the team, he had acted as a vigilante under the moniker Avenging Angel.