Miloslavsky District is an administrative and municipal district (raion), one of the twenty-five in Ryazan Oblast, Russia. It is located in the southwest of the oblast. The area of the district is 1,397 square kilometers (539 sq mi). Its administrative center is the urban locality of Miloslavskoye. Population: 13,455 ; 16,564 (2002 census); 20,808 (1989 Soviet census). The population of Miloslavskoye accounts for 33.3% of the district's total population.