Heat Lightning is a 1934 pre-Code drama film starring Aline MacMahon, Ann Dvorak, and Preston Foster. It is based on the play of the same name by Leon Abrams and George Abbott.

The movie was one of the latter to be released before the Motion Picture Production Code was rigorously enforced. According to Robert Osborne of Turner Classic Movies, two months after its release, it was condemned by the Catholic Legion of Decency. A print is held at the Library of Congress.