A class action is a form of lawsuit.

Class Action may also refer to:

• Class Action (film), 1991, starring Gene Hackman and Mary Elizabeth Mastrantonio

• Class Action (band), a garage house band

• "Class Action" (Teenage Robot), a 2002 episode of My Life as a Teenage Robot

• Class Action, a play by Brad Slaight

• Class Action, a 2002 book that was the basis for the film North Country

• Cla$$ Action, a 2005 novel by Henry Denker