Key Largo is a 1948 crime film starring Humphrey Bogart, Edward G. Robinson, Lauren Bacall, Lionel Barrymore, and Claire Trevor. This was the fourth and final film pairing of married actors Bogart and Bacall. Trevor won the 1948 Academy Award for Best Actress in a Supporting Role for her performance.

The movie was supposedly adapted from Maxwell Anderson's 1939 play, but in reality has very little to do with it, although Anderson's name still appears in the credits. The director was John Huston.