Ryūfuku-ji, Buddhist temple in Asahi, Japan

Ryūfuku-ji, formally Sentakisan Ryūfuku-ji, is a Shingon Chizan sect temple in the Iwai district of Asahi, Chiba Prefecture. Its grounds hold a Niōmon gate, a Hondō main hall, a Dainichiden chapel, a Kannon-dō chapel and a Daishi-dō chapel, with waterfalls flowing from the surrounding slopes.

According to temple tradition, Ryūfuku-ji was founded in 788 by Kūkai, who by legend also carved the Fudō-myōō statue kept in the Hondō. In the Sengoku period the Shimada clan, lords of Mibiro Castle south of the temple, patronised the site; the castle and temple were then destroyed by fire in local fighting.

The temple's name combines the kanji for dragon (龍) and blessing (福). Its Fudō-myōō statue, carved by Kūkai according to tradition, is venerated by local residents and by fishermen of the Kujukuri Coast.

Ryūfuku-ji stands in the Iwai district of Asahi, about 4 km north of Iioka Station on the JR East Sōbu Main Line, and buses run from the station to the temple. The grounds hold the Niōmon gate, Hondō, Dainichiden, Kannon-dō and Daishi-dō, with waterfalls flowing from the surrounding slopes. Paths link the buildings through dense vegetation.

The temple's forest is a Chiba Prefectural Natural Monument, protecting plants such as the otakarakō ligularia and the asukainode fern around the halls and waterfalls. The name Ryūfuku-ji combines the kanji for dragon (龍) and blessing (福).