Lesnoy District (Russian: Лесно́й райо́н) is an administrative and municipal district (raion), one of the thirty-six in Tver Oblast, Russia. It is located in the northeast of the oblast and borders with Pestovsky District of Novgorod Oblast in the north, Sandovsky District in the east, Maksatikhinsky District in the south, Udomelsky District in the southwest, and with Moshenskoy District of Novgorod Oblast in the northwest. The area of the district is 1,633 square kilometers (631 sq mi). Its administrative center is the rural locality (a selo) of Lesnoye. Population: 5,252 (2010 Census); 6,833 (2002 Census); 8,177 (1989 Census). The population of Lesnoye accounts for 31.7% of the district's total population.