Ust-Vymsky District (Russian: Усть-Вы́мский райо́н; Komi: Емдін район) is an administrative district (raion), one of the twelve in the Komi Republic, Russia. It is located in the southwest of the republic. The area of the district is 4,775 square kilometers (1,844 sq mi). Its administrative center is the rural locality (a selo) of Aykino. As of the 2010 Census, the total population of the district was 29,474, with the population of Aykino accounting for 11.4% of that number.