Ostrovsky District (Russian: О́стровский райо́н) is an administrative and municipal district (raion), one of the twenty-four in Pskov Oblast, Russia. It is located in the west of the oblast and borders with Pskovsky District in the north, Porkhovsky District in the northeast, Novorzhevsky District in the southeast, Pushkinogorsky and Krasnogorodsky Districts in the south, Pytalovsky District in the west, and with Palkinsky District in the northwest. The area of the district is 2,400 square kilometers (930 sq mi). Its administrative center is the town of Ostrov. Population: 31,096 (2010 Census); 36,685 (2002 Census); 14,199 (1989 Census). The population of Ostrov accounts for 69.7% of the district's total population.