Mutant X is a superhero television series created under a Marvel Comics license, but with no connection to the Mutant X comic book series. It debuted in first-run syndication on October 6, 2001. The show was created by Avi Arad, and it centers on Mutant X, a team of "new mutants" who possess extraordinary powers as a result of genetic engineering. The members of Mutant X were used as test subjects in a series of covert government experiments. The mission of Mutant X is to seek out and protect their fellow new mutants. The series was filmed in Toronto, Ontario, Canada.

The series was abruptly cancelled in 2004 after the dismantling of Fireworks Entertainment, one of the show's production companies, ending the show with an unresolved cliffhanger.