Futatsuishi Dam (Japanese: 二ツ石ダム) is a rockfill dam located in Miyagi Prefecture in Japan.

The catchment area of the dam is 19 km2.

The dam impounds about 52 ha of land when full and can store 10600 thousand cubic meters of water.

The construction of the dam was started on 1988 and completed in 2009.

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