Lovat River
The whole area of the district lies in the basin of the Lovat River and thus in the basin of the Neva. The Lovat crosses the eastern part of the district; its largest tributaries within the district are the Loknya River (left) and the Kunya River (right), the short stretch of the latter forming the border with Tver Oblast. There is a lake region in the west of Loknyansky District, with the largest lakes being Loknovo, Uzho, and Ale. Another lake of considerable size, Lake Dulovo, is located in the east of the district.