Little Red Monkey is a 1955 British thriller film directed by Ken Hughes and starring Richard Conte, Rona Anderson and Russell Napier. Detectives from Scotland Yard investigate a series of murders of leading nuclear scientists, and are intrigued by strange reports received about the crimes. The film was released in the United States by Allied Artists as The Case of the Red Monkey.

The film was an international hit, and along with Confession (1955) proved a breakthrough for Anglo-Amalgamated. After its success the company began making more expensive productions, often hiring American stars for international appeal.