Justice League is een Amerikaanse animatieserie van de zender Cartoon Network. De serie ging in première op 17 november 2001.
Animatieserie over een team van DC Comics superhelden gebaseerd op de Justice League comic reeks. Na het tweede seizoen, werd de titel Justice League Unlimited, en liep nog eens drie seizoenen.
The League expands their operations, enlisting new recruits across the globe. The newest of these is Green Arrow, who has repeatedly refused to respond to invitations to join the League. He is therefore pulled to the rebuilt, and much larger, Watchtower by teleport. Opting against joining, he hitches a ride back to Earth with the team of Green Lantern, Captain Atom and Supergirl, who have been sent on a mission to stop a giant, uncontrolled, nuclear-powered defense robot in an unnamed Asian country existing in self-imposed international isolation.