Mangan-ji (満願寺) is a Buddhist temple located in the Setagaya Ward of Tokyo, Japan. The temple is also called Todoroki Fudō (等々力不動), after a famous image in one of its chapels. The temple is noteworthy as being the 17th on the Bandō Sanjūroku Fudōson Reijō pilgrimage route of 36 temples in the Kantō region dedicated to Fudō Myōō. The temple currently belongs to the Shingon-shū Chisan-ha school of Japanese Buddhism.
Shingon Buddhism (真言宗, Shingon-shū) is one of the major schools of Buddhism in Japan and one of the few surviving Vajrayana lineages in East Asia, originally spread from India to China through traveling monks such as Vajrabodhi and .