Sernursky District (Russian: Се́рнурский райо́н; Meadow Mari: Шернур кундем, Šernur kundem) is an administrative[1] and municipal[6] district (raion), one of the fourteen in the Mari El Republic, Russia.

The area of the district is 1,032 square kilometers (398 sq mi).

[citation needed] Its administrative center is the urban locality (an urban-type settlement) of Sernur.

[4] Within the framework of administrative divisions, Sernursky District is one of the fourteen in the republic.

[1] It is divided into 1 urban-type settlement (an administrative division with the administrative center in the urban-type settlement (inhabited locality) of Sernur) and 8 rural okrugs, all of which comprise 145 rural localities.