Fanboy & Chum Chum is an American animated comedy television series created by Eric Robles for Nickelodeon. It is based on Fanboy, an animated short created by Robles for Nickelodeon Animation Studio and Frederator Studios, that was broadcast on Random! Cartoons. The series was first broadcast on October 12, 2009, on Nickelodeon as a preview, then officially premiered on November 6, 2009, after SpongeBob's Truth or Square. In the show, two slow-witted would-be superheroes attempt to rid their town of Galaxy Hills of evil, while annoying everyone around them.

The series premiere drew 5.8 million viewers. The second episode was watched by 5.4 million viewers. The series won a Daytime Emmy Award for Outstanding Special Class Animated Program at the 38th Daytime Emmy Awards.

The series' initial release on Nickelodeon finished on November 2, 2012. One episode, "Brain Freeze", was released on DVD in 2011 instead of being broadcast on television. It finally aired on July 12, 2014.

Fanboy & Chum Chum aired in reruns on Nicktoons from October 23, 2009, to December 25, 2016.

The theme song was written by Brad Joseph Breeck and performed by an experimental punk band, The Mae Shi.