Mozhginsky District (Russian: Можги́нский райо́н; Udmurt: Можга ёрос, Možga joros) is an administrative[1] and municipal[5] district (raion), one of the twenty-five in the Udmurt Republic, Russia.

The area of the district is 1,997 square kilometers (771 sq mi).

Within the framework of administrative divisions, Mozhginsky District is one of the twenty-five in the republic.

[1] The town of Mozhga serves as its administrative center, despite being incorporated separately as a town of republic significance—an administrative unit with the status equal to that of the districts.

[5] The town of republic significance of Mozhga is incorporated separately from the district as Mozhga Urban Okrug.