Son of Dracula is a 1943 American horror film directed by Robert Siodmak with a screenplay based on an original story by his brother Curt Siodmak. The film stars Lon Chaney Jr., Louise Allbritton, Robert Paige, Evelyn Ankers, and Frank Craven. The film is set in the United States, where Count Alucard has just taken up residence. Katherine Caldwell (Allbritton), a student of the occult, becomes fascinated by Alucard and eventually marries him. Katherine begins to look and act strangely, leading her former romantic partner Frank Stanley (Paige) to suspect that something has happened to her. He gets help from Dr. Brewster (Craven) and psychologist Laszlo who come to the conclusion that Alucard is a vampire.

Robert Siodmak was a German film director who also worked in the United States. He is best remembered as a thriller specialist and for a series of films noir he made in the 1940s, such as The Killers (1946).