Kadomsky District (Russian: Ка́домский райо́н) is an administrative[1] and municipal[5] district (raion), one of the twenty-five in Ryazan Oblast, Russia.

It is located in the east of the oblast.

The area of the district is 986 square kilometers (381 sq mi).

[citation needed] Its administrative center is the urban locality (a work settlement) of Kadom.

[8] The population of Kadom accounts for 64.5% of the district's total population.