Taiji Tonoyama (殿山 泰司, Tonoyama Taiji, 1915–1989) was a Japanese character actor who made many appearances in films and on television from 1939 to 1989. He was a close friend of Kaneto Shindo and one of his regular cast members. He was also an essayist. In 1950 he helped form the film company Kindai Eiga Kyokai with Shindo and Kōzaburō Yoshimura.