Allaikhovsky District (Russian: Алла́иховский улу́с; Sakha: Аллайыаха улууһа) is an administrative and municipal district (raion, or ulus), one of the thirty-four in the Sakha Republic, Russia. It is located in the northeast of the republic towards the mouth of the Indigirka River and borders with the East Siberian Sea in the north, Nizhnekolymsky District in the east, Srednekolymsky District in the southeast, Abyysky District in the south, and with Ust-Yansky District in the west. The area of the district is 107,300 square kilometers (41,400 sq mi). Its administrative center is the urban locality (a settlement) of Chokurdakh. Population: 3,050 (2010 Census); 3,421 (2002 Census); 5,218 (1989 Census).