Maryovsky District is an administrative and municipal district (raion), one of the twenty-one in Novgorod Oblast, Russia. It is located in the south of the oblast and borders with Demyansky District in the north, Ostashkovsky and Penovsky Districts of Tver Oblast in the southeast, Andreapolsky District of Tver Oblast and Kholmsky District in the southwest, Poddorsky District in the west, and with Starorussky District in the northwest. The area of the district is . Its administrative center is the rural locality (a selo) of Maryovo. District's population: 5,711 (2002 Census); The population of Maryovo accounts for 49.2% of the district's total population.