is a Tendai Buddhist temple in Kunisaki, à Âita Prefecture, Japan. It is located on the slopes of Mount Futago (, Futagosan), the highest mountain on the Kunisaki Peninsula. The temple is said to have been established in 718 by Ninmon (), a legendary monk, and became the central temple of the Rokugà  Manzan (å ÂéÂᾼÂå±±) temples. The Rokugà  Manzan culture is said to be the origin of Shinbutsu-shà «gà Â, or the syncretism of Buddhism and Shinto. As such, both Shinto and Buddhist elements can be seen at Futago-ji.
The temple precincts are a Prefectural Historic Site included within a Special Zone of the Setonaikai National Park.