Mattate Dam is a buttress dam located in Toyama prefecture in Japan.

The dam is used for power production.

The dam impounds about 1 ha of land when full and can store 26 thousand cubic meters of water.

The construction of the dam was started in 1927 and completed in 1929.

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