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

The area of the district is 2,353.1 square kilometers (908.5 sq mi).

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

[1] The Altsevo peat narrow gauge railway is located in the work settlement of Pizhma, closed in 2015.

The Pizhemskaya narrow gauge railway is located in the work settlement of Pizhma.