Hōnen'ike Dam (豊稔池ダム, Hōnen'ike damu) is a multiple-arch dam in the Sanuki Mountain range at Kan'onji, Kagawa Prefecture, Japan. The reservoir it creates is used for irrigation. Construction began in 1926 and was completed in 1930. The dam is 32 m high and has a crest length of 158 m. It is supported by six arched buttresses.