Ryūfuku-ji (龍福寺) is a Buddhist temple, formally known as Sentakisan Ryūfuku-ji (仙滝山龍福寺) located in the Iwai district of the city of Asahi in Chiba Prefecture, Japan. The temple is also known as the Iwai no Taki Fudō (岩井の滝不動), a reference to a Fudō-myōō statue located under a waterfall on the site.