Sosnovsky District (Russian: Сосно́вский райо́н) is an administrative district (raion), one of the forty in Nizhny Novgorod Oblast, Russia.

[4] It is located in the southwest of the oblast.

The area of the district is 1,170.6 square kilometers (452.0 sq mi).

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

[7] The population of Sosnovskoye accounts for 44.7% of the district's total population.