Hatter's Castle is a 1942 British film noir based on the 1931 novel Hatter's Castle by A. J. Cronin, which dramatizes the ruin that befalls a Scottish hatter set on recapturing his imagined lost nobility. The film was made by Paramount British Pictures and stars Robert Newton, Deborah Kerr, James Mason, and Emlyn Williams. It is believed to be the only film that depicts the Tay Bridge disaster.

Hatter's Castle (1931) is the first novel of author A. J. Cronin. The story is set in 1879, in the fictional town of Levenford, on the Firth of Clyde. The plot revolves around many characters and has many subplots, all of which relate to the life of the hatter, James Brodie, whose narcissism and cruelty gradually destroy his family and life. The book was made into a successful film in 1942 starring Robert Newton, Deborah Kerr, and James Mason.