Miloslavsky District (Russian: Милосла́вский райо́н) is an administrative[1] and municipal[6] 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).

[3] Its administrative center is the urban locality (a work settlement) of Miloslavskoye.

[9] The population of Miloslavskoye accounts for 33.3% of the district's total population.