Buysky District (Russian: Бу́йский райо́н) is an administrative[1] and municipal[6] district (raion), one of the twenty-four in Kostroma Oblast, Russia.

The area of the district is 3,248 square kilometers (1,254 sq mi).

[10] Within the framework of administrative divisions, Buysky District is one of the twenty-four in the oblast.

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

[6] The town of oblast significance of Buy is incorporated separately from the district as Buy Urban Okrug.