Two Thousand Maniacs! is a 1964 American horror film written and directed by Herschell Gordon Lewis and starring 1963 Playboy Playmate Connie Mason. It follows a group of Northern tourists who are savagely tortured and murdered during a Confederate celebration of a small Southern community's centennial.

The film has been noted by critics as an early example of hicksploitation in grindhouse films, as well as for its sensationalizing of national perceptions between the North and South. The film was remade in 2005 as 2001 Maniacs. The story of the film was inspired by the 1947 Lerner and Loewe musical Brigadoon.