Bruno "Ugly" Mannheim is a supervillain appearing American comic books published by DC Comics. He is an Intergang crime boss who is the son of Moxie Mannheim and one of Superman's enemies.

Chad L. Coleman portrayed Mannheim in the third and fourth seasons of Superman & Lois. Additionally, Bruce Weitz, Kevin Michael Richardson, and Trevor Devall have voiced the character in animation.

The character first appeared in Superman's Pal Jimmy Olsen #139 (July 1971) and was created by Jack Kirby.

Bruno Mannheim is a member of Intergang working under the clone of Morgan Edge. He is also the son of Moxie "Boss" Mannheim. Mannheim and his minions kidnap Guardian, Goody Rickels, and the Newsboy Legion and have them eat a meal laced with pyro-granulate, an Apokoliptian mineral that will kill them within 24 hours. Guardian forces Mannheim to give up the antidote for the pyro-granulate, enabling him to save himself, Jimmy Olsen, Rickels, and the Newsboy Legion.

In post-Crisis continuity, Bruno Mannheim is a member of Intergang. While Superman is dealing with a storm, Mannheim calls a meeting with the Intergang council of war to find a way to discredit Clark Kent, Lois Lane, and Cat Grant before Morgan Edge's trial.

Mannheim and Intergang collaborate with Toyman in his revenge on Lex Luthor. When Mannheim complains that Toyman is going to attract attention to him, Toyman urges Mannheim to stay out of his affairs.

During the Infinite Crisis storyline, Mannheim becomes one of Metropolis' most powerful gangsters and the leader of Intergang.

Bruno Mannheim returns in 52, where he claims to have been "reborn" thanks to the New God Darkseid, and to have become a psychopath. In Issue #25, Mannheim has Intergang follow the Crime Bible, a religious text that venerates Cain as the first murderer. He is also shown to now be a cannibal, killing and then eating those whom do not submit to (or simply do not immediately join) Intergang.