Sangoro-ike (Japanese: 三五郎池) is an earthfill dam located in Kagawa Prefecture in Japan.

The dam is used for irrigation and water supply.

The dam impounds about 1 ha of land when full and can store 85 thousand cubic meters of water.

The construction of the dam was started on 1916 and completed in 1924.

This article about a dam or floodgate on Shikoku, Japan is a stub.