Kotogawa Dam is a gravity dam located in Yamanashi Prefecture in Japan.

The dam is used for flood control, water supply and power production.

The dam impounds about 30 ha of land when full and can store 5150 thousand cubic meters of water.

The construction of the dam was started on 1985 and completed in 2007.

This article about a dam or floodgate in Chūbu region of Honshu, Japan is a stub.