Slantsevsky District (Russian: Сла́нцевский райо́н) is an administrative and municipal district (raion), one of the seventeen in Leningrad Oblast, Russia. It is located in the southwest of the oblast and borders with Ida-Viru County of Estonia in the west, Kingiseppsky District in the north, Volosovsky District in the northeast, Luzhsky District in the east, Plyussky District of Pskov Oblast in the south, and Gdovsky District, also of Pskov Oblast, in the southwest. The area of the district is 2,191.1 square kilometers (846.0 sq mi). Its administrative center is the town of Slantsy. Population (excluding the administrative center): 10,038 (2010 Census); 10,480 (2002 Census); 10,974 (1989 Census).