Megino-Kangalassky District (Russian: Ме́гино-Кангала́сский улу́с; Yakut: Мэҥэ-Хаҥалас улууһа, Meñe Xañalas uluuha, IPA: [meŋe xaŋalas uluːha]) is an administrative and municipal district (raion, or ulus), one of the thirty-four in the Sakha Republic, Russia. It is located in the central part of the republic, on the Lena River opposite Yakutsk, the capital of the republic. It borders Ust-Aldansky District in the north, Churapchinsky District in the east, Amginsky District in the southeast, Khangalassky District in the southwest, and is bounded by the Lena River in the west. The area of the district is 11,700 square kilometers (4,500 sq mi). Its administrative center is the rural locality (a selo) of Mayya. As of the 2010 Census, the total population of the district was 31,278, with the pop