Mount Sanbe, also known as Sanbesan, is an active stratovolcano in Ōda, Shimane Prefecture.

The highest peak, Osanbe, has an elevation of 1,126 m (3,694 ft).

At the center of the volcano is a caldera 1 km (0.62 mi) across.

Volcanic activity was believed to have started 100 thousand years ago.

The Holocene eruption triggered pyroclastic flows down the northeastern and southeastern flanks, reaching the Hayamizu River in the south.