Kuvshinovsky District is an administrative and municipal district (raion), one of the thirty-six in Tver Oblast, Russia. It is located in the center of the oblast and borders with Vyshnevolotsky District in the north, Torzhoksky District in the east, Staritsky District in the south, Selizharovsky District in the southwest, Ostashkovsky District in the west, and with Firovsky District in the northwest. The area of the district is . Its administrative center is the town of Kuvshinovo. Population: 15,386 (2010 Census); The population of Kuvshinovo accounts for 65.0% of the district's total population.