Millerovsky District (Russian: Ми́ллеровский райо́н) is an administrative[1] and municipal[4] district (raion), one of the forty-three in Rostov Oblast, Russia.

It is located in the northwest of the oblast.

The area of the district is 3,237 square kilometers (1,250 sq mi).

[2] Its administrative center is the town of Millerovo.

[3] The district contains the Millerovo air base.