Bazarnosyzgansky District (Russian: Базарносызганский райо́н) is an administrative[1] and municipal[6] district (raion), one of the twenty-one in Ulyanovsk Oblast, Russia.

It is located in the west of the oblast.

The area of the district is 825.2 square kilometers (318.6 sq mi).

[citation needed] Its administrative center is the urban locality (a work settlement) of Bazarny Syzgan.

[2] In 1956, it was merged into Inzensky District.