Belyayevsky District (Russian: Беля́евский райо́н; Kazakh: Бөрте ауданы, Börte audany) is an administrative[1] and municipal[5] district (raion), one of the thirty-five in Orenburg Oblast, Russia.

It is located in the center of the oblast.

The area of the district is 3,687 square kilometers (1,424 sq mi).

[3] Its administrative center is the rural locality (a selo) of Belyayevka.

[8] The population of Belyayevka accounts for 29.2% of the total district's population.