Krasninsky District (Russian: Кра́снинский райо́н) is an administrative and municipal district (raion), one of the twenty-five in Smolensk Oblast, Russia. It is located in the west of the oblast and borders with Rudnyansky District in the north, Smolensky District in the east, Monastyrshchinsky District in the south, Horki District of Mogilev Region of Belarus in the southwest, and with Dubrowna District of Vitebsk Region, also of Belarus, in the west. The area of the district is 1,507.67 square kilometers (582.11 sq mi). Its administrative center is the urban locality (a settlement) of Krasny. Population: 12,895 (2010 Census); 15,537 (2002 Census); 18,758 (1989 Census). The population of Krasny accounts for 33.7% of the district's total population.