Duvansky District (Russian: Дува́нский райо́н; Bashkir: Дыуан районы, Dıwan rayonı) is an administrative[1] and municipal[6] district (raion), one of the fifty-four in the Republic of Bashkortostan, Russia.

The area of the district is 3,243 square kilometers (1,252 sq mi).

[2] Its administrative center is the rural locality (a selo) of Mesyagutovo.

[2] Within the framework of administrative divisions, Duvansky District is one of the fifty-four in the Republic of Bashkortostan.

[1] The district is divided into thirteen selsoviets, comprising forty-seven rural localities.