Iga no Kagemaru (Japanese: 伊賀の影丸, "Kagemaru of the Iga Clan"), is a Japanese manga series written and illustrated by Mitsuteru Yokoyama. It was serialized in Shogakukan's Weekly Shōnen Sunday from 1961 to 1966. The series was collected into fifteen tankōbon volumes released between 1969 and 1976. The manga was adapted into a live action movie by the Toei Company in 1963.