Aoshita No.3 Dam (Japanese: 青下第３ダム) is a gravity dam located in Miyagi Prefecture in Japan.

The dam is used for water supply.

The dam impounds about 3 ha of land when full and can store 264 thousand cubic meters of water.

The construction of the dam was started on 1931 and completed in 1933.

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