Nizhnedevitsky District (Russian: Нижнеде́вицкий райо́н) is an administrative[1] and municipal[4] district (raion), one of the thirty-two in Voronezh Oblast, Russia.

It is located in the northwest of the oblast.

The area of the district is 1,196 square kilometers (462 sq mi).

[2] Its administrative center is the rural locality (a selo) of Nizhnedevitsk.

[8] The population of the administrative center accounts for 30.4% of the district's total population.