Negasonic Teenage Warhead is a superheroine appearing in American comic books published by Marvel Comics. Created by Grant Morrison and Frank Quitely, the character first appeared in New X-Men #115 (2001). She is named after the song "Negasonic Teenage Warhead" by Monster Magnet. She belongs to a subspecies of humans called mutants, who are born with superhuman abilities. Negasonic Teenage Warhead's appearance and powers were eventually altered in the comics to match her appearance in the Deadpool films, in which she is portrayed by Brianna Hildebrand.

"Negasonic Teenage Warhead" is the second track on Monster Magnet's 1995 album, Dopes to Infinity. It became the band's first successful single.