Tarzan's Magic Fountain is a 1949 Tarzan film directed by Lee Sholem and starring Lex Barker as Tarzan and Brenda Joyce as his companion Jane. The thirteenth film of the Tarzan film series that began with 1932's Tarzan the Ape Man, the film also features Albert Dekker and Evelyn Ankers. It was co-written by Curt Siodmak.

This was Barker's first appearance as Edgar Rice Burroughs' ape-man, while Joyce had played Jane opposite Johnny Weissmuller as Tarzan in four previous films. She was one of only two actresses to portray Jane in movies with two different actors as Tarzan. (The other was Karla Schramm in the silent era.) Tarzan's Magic Fountain was Joyce's final turn in the role, and different actresses played Jane in each of Barker's four subsequent Tarzan movies: (Vanessa Brown, Virginia Huston, Dorothy Hart, and Joyce MacKenzie). Elmo Lincoln, who had been the first screen Tarzan three decades earlier, appears uncredited as a fisherman repairing his nets. The film was followed by Tarzan and the Slave Girl in 1950.