Hitler's Reign of Terror is an independently released 1934 film that attacked the activities of Adolf Hitler in Nazi Germany, and is often credited as being the "first-ever American anti-Nazi film."

The film is a combination of newsreel footage, documentary, and reenactment. Despite the fact that the New York State Censor Board refused the film a license, it played for two weeks in New York City theaters which filled to capacity. In Chicago the film was only released after the title was changed to Hitler Reigns to placate the German government. Mordaunt Hall gave the film a negative review in The New York Times when it was released. Film Daily scoffed at the film for its prediction that Hitler's Germany was a future threat to world peace.