Ohtsubogawa Dam (Japanese: 大坪川ダム) is an earthfill dam located in Ishikawa Prefecture in Japan.

The catchment area of the dam is 0.9 km2.

The dam impounds about 93 ha of land when full and can store 490 thousand cubic meters of water.

The construction of the dam was started on 1986 and completed in 1992.

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