The Pyramid of the Sun God (German: Die Pyramide des Sonnengottes is a 1965 West German and Italian western film adventure directed by Robert Siodmak and starring Lex Barker, Gérard Barray and Michèle Girardon. It is based on a book by Karl May, and was part of a boom of Karl May adaptations during the decade. It follows on from The Treasure of the Aztecs (1965), also directed by Siodmak and featuring substantially the same cast.

It was shot at the Spandau Studios in Berlin. The film's sets were designed by the art directors Veljko Despotovic and Hertha Hareiter and Otto Pischinger. Rio Grande