Khangalassky District (Russian: Хангала́сский улу́с; Sakha: Хаҥалас улууһа) is an administrative and municipal district (raion, or ulus), one of the thirty-four in the Sakha Republic, Russia. Khangalassky District is located in the center of the republic and borders with Megino-Kangalassky District in the east, Amginsky and Aldansky Districts in the south, Olyokminsky District in the southwest, Gorny District in the northwest, and with the territory of the city of republic significance of Yakutsk in the north. The area of the district is 24,700 square kilometers (9,500 sq mi). Its administrative center is the town of Pokrovsk.