Baron Blood is a 1972 horror film directed by Mario Bava. An international co-production of Italy and West Germany, the film stars Joseph Cotten as Baron Otto Von Kleist, a murderous noble who is resurrected from the dead by his descendant, Peter, and a college student named Eva.

Mario Bava was an Italian filmmaker who worked variously as a director, cinematographer, special effects artist and screenwriter. His low-budget genre films, known for their distinctive visual flair and stylish technical ingenuity, feature recurring themes and imagery concerning the conflict between illusion and reality, as well as the destructive capacity of human nature. Widely regarded as a pioneer of Italian genre cinema and one of the most influential auteurs of the horror film genre, he is popularly referred to as the "Master of Italian Horror" and the "Master of the Macabre".