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

The dam is used for flood control and irrigation.

The catchment area of the dam is 4.1 km2.

The dam impounds about 26 ha of land when full and can store 1450 thousand cubic meters of water.

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