Okawa Dam (Japanese: 大川ダム) is a gravity dam located in Kagawa Prefecture in Japan.

The dam is used for flood control.

The dam impounds about 8 ha of land when full and can store 760 thousand cubic meters of water.

The construction of the dam was started on 1959 and completed in 1963.

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