The second season of the American cable television series Legion is based on the Marvel Comics character David Haller / Legion, a mutant diagnosed with schizophrenia at a young age. The season is produced by FX Productions in association with Marvel Television. Noah Hawley serves as showrunner.

Legion is an American superhero television series created by Noah Hawley for FX, based on the Marvel Comics character David Haller / Legion. Set in an alternate timeline of the X-Men film series, it was produced by FX Productions in association with Marvel Television, and ran for three seasons from 2017 to 2019, with Hawley serving as showrunner.