The Avuta (Belarusian: Авута Avuta; Russian: Аута Auta) is a river that flows through Belarus into the Dysna near the village of Bychinshchina. The river flows from Lake Povvuto on the outskirts of the Sventsyan ridges, then flows along the Polotsk Lowland. The main tributaries: Nekhrist and Istyanka (right), Ulinets (left). It flows into the Dysna 3 km south-west of the city of Dzisna shortly before the confluence of the Dysna itself to the Western Dvina.