Mstino (Russian: Мстино́) is a lake in Tver Oblast, Russia, in the Valdai Hills area. Its main outflow is Msta River. The lake occupies an area of 13.7 square kilometres (5.3 sq mi), its length is 13.8 kilometres (8.6 mi), width 1.8 kilometres (1.1 mi). It lies at an altitude of 154 meters, with maximum depth of 10 meters.

• Akademicheskaya Dacha, an artist base on the Mstino Lake