Konaka-ike is an earthfill dam located in Chiba Prefecture in Japan.

The catchment area of the dam is 2.8 km2.

The dam impounds about 11 ha of land when full and can store 1025 thousand cubic meters of water.

The construction of the dam was completed in 1947.

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