Nesterovsky District (Russian: Не́стеровский райо́н) is an administrative district (raion), one of the fifteen in Kaliningrad Oblast, Russia. As a municipal division, it is incorporated as Nesterovsky Municipal District. It is located in the southeast of the oblast and borders with Krasnoznamensky District in the north, Lithuania in the east, Poland in the south, and with Gusevsky and Ozyorsky Districts in the west. The area of the district is 1,062 square kilometers (410 sq mi). Its administrative center is the town of Nesterov. Population: 16,213 (2010 Census); 17,250 (2002 Census); 15,181 (1989 Census).