Chamzinsky District (Russian: Ча́мзинский райо́н; Erzya: Чаунзабуе, Čaunzabuje; Moksha: Чамзинкань аймак, Čamzinkań ajmak) is an administrative[1] and municipal[6] district (raion), one of the twenty-two in the Republic of Mordovia, Russia.

The area of the district is 1,009.5 square kilometers (389.8 sq mi).

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

[4] Within the framework of administrative divisions, Chamzinsky District is one of the twenty-two in the republic.

[1] It is divided into two work settlements (administrative divisions with the administrative centers in the work settlements (inhabited localities) of Chamzinka and Komsomolsky) and twelve selsoviets, all of which comprise fifty-one rural localities.