There have been several fictional groups of mutants who have used the name Hellions, appearing in American comic books published by Marvel Comics. The Hellions have always been portrayed as rivals of various teams of younger mutant heroes in the X-Men franchise, initially as actual villains and later on a team that was more of a school rival than actual enemies of the X-Men. Two later groups known as the Hellions or New Hellions both fought against various X groups such as Generation X and X-Force.