The Private Lives of Elizabeth and Essex, for a time also entitled Elizabeth the Queen, is a 1939 American historical romantic drama film directed by Michael Curtiz and starring Bette Davis, Errol Flynn, and Olivia de Havilland. Based on the play Elizabeth the Queen by Maxwell Anderson—which had a successful run on Broadway with Lynn Fontanne and Alfred Lunt in the lead roles—the film fictionalizes the historical relationship between Queen Elizabeth I and Robert Devereux, 2nd Earl of Essex. The screenplay was written by Norman Reilly Raine and Aeneas MacKenzie.

Michael Curtiz was a Hungarian-American film director, recognized as one of the most prolific directors in history. He directed classic films from the silent era and numerous others during Hollywood's Golden Age, when the studio system was prevalent.