Ertilsky District (Russian: Эрти́льский райо́н) is an administrative[1] and municipal[5] district (raion), one of the thirty-two in Voronezh Oblast, Russia.

It is located in the north of the oblast.

The area of the district is 1,457.81 square kilometers (562.86 sq mi).

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

[9] The population of Ertil accounts for 48.0% of the district's total population.