Oshino Tameike is an earthfill dam located in Yamanashi Prefecture in Japan.

The catchment area of the dam is 1.7 km2.

The dam impounds about 2 ha of land when full and can store 141 thousand cubic meters of water.

The construction of the dam was completed in 1933.

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