The Treasure of the Aztecs is a 1965 western adventure film directed by Robert Siodmak and starring Lex Barker, Gérard Barray and Michèle Girardon. It was made as a co-production between France, Italy and West Germany. It was based on a novel by Karl May, part of a boom in adaptations of the author's works during the decade. It was followed by a second part The Pyramid of the Sun God (1965).