Uryu-ko is an earthfill dam located in Chiba Prefecture in Japan.

The catchment area of the dam is 0.3 km2.

The dam impounds about 4 ha of land when full and can store 264 thousand cubic meters of water.

The construction of the dam was completed in 1951.

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