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

[3] It is located in the southeast of the oblast.

The area of the district is 866.5 square kilometers (334.6 sq mi).

[1] Its administrative center is the rural locality (a selo) of Bolshoye Boldino.

[6] The population of Bolshoye Boldino accounts for 42.2% of the district's total population.