Tajigawa Dam (Japanese: 多治川ダム) is a gravity dam located in Kagawa Prefecture in Japan.

The dam is used for flood control.

The catchment area of the dam is 5.5 km2.

The dam impounds about 2 ha of land when full and can store 200 thousand cubic meters of water.

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