One Night in Lisbon is a 1941 American thriller film directed by Edward H. Griffith and starring Fred MacMurray, Madeleine Carroll and Patricia Morison. It was one of a cycle of pro-British films produced in Hollywood before the United States' entry into the war in December 1941. The film is based on John Van Druten's 1931 British play There's Always Juliet, updated to include the current wartime situation.