Hanakawa Dam (Japanese: 花川ダム) is a gravity dam located in Miyagi Prefecture in Japan.

The catchment area of the dam is 52 square kilometres (20 sq mi).

The dam impounds about 4 hectares (9.9 acres) of land when full and can store 233,000 cubic metres (8,200,000 cu ft) of water.

The construction of the dam was completed in 1964.

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