Osyozu-ike Dam is an earthfill dam located in Fukuoka Prefecture in Japan.

The catchment area of the dam is 3.6 km2.

The dam impounds about 10 ha of land when full and can store 712 thousand cubic meters of water.

The construction of the dam was completed in 1969.

This article about a dam or floodgate on Kyushu, Japan is a stub.