Scatterbrain was an American funk metal band from Long Island, New York, founded in 1989 by Tommy Christ and Glen Cummings after their hardcore group Ludichrist broke up. The band plays hard rock, heavy metal, thrash metal, and funk metal with humorous, ironic lyrics.

They performed distinctive live shows which might combine a Mozart medley, a Motörhead cover, cross-dressing, and a chicken costume.

Their most popular song, "Don't Call Me Dude", was a top-twenty hit in Australia. Its video, directed by George Seminara, received regular rotation on MTV's Headbangers Ball with Riki Rachtman, and is featured in Beavis and Butt-Head's "Blood Drive" episode.

The band contributed a rendition of LL Cool J's "Mama Said Knock You Out" to the soundtrack of the 1992 film Encino Man.

In 1992, Cummings parted ways with the others, moved to Nashville, and founded the rap rock group Stone Deep with members of The Hard Corps. Christ, Neider, Brogna and Boyko wrote and recorded the band's third release, a seven-song EP titled Mundus Intellectualis (1994). The band stopped writing, recording, and touring in 1994.

In 2007, Christ, Neider, Brogna and Ludichrist drummer Dave Miranda reunited to perform several Scatterbrain / Ludichrist reunion shows. Cummings did not participate.

In a Nov. 2024 interview with Blasted By Britton, Cummings revealed that there's a third, unreleased Scatterbrain album titled Hot Garbage that was recorded for --and rejected by-- Elektra Records.