Gruesome Gorilla is a fictional large, beastly and ill-tempered gorilla from the Looney Tunes collection of animated shorts.
He first appeared with Bugs Bunny in the 1948 short Gorilla My Dreams. In the cartoon, Bugs almost became his son. Gruesome's second appearance was in Hurdy-Gurdy Hare. His third and last appearance was in Apes of Wrath (albeit redesigned), with almost the same plot as Gorilla My Dreams (in both cartoons, Gruesome, who hated the idea of becoming a father, behaves in an abusive manner toward Bugs).
Gruesome later appeared as a boss in the video game, Bugs Bunny and Taz: Time Busters.
- All of his cartoon appearances involved Bugs Bunny.