Khomustakh (; ) is a rural locality (a selo), the only inhabited locality, and the administrative center of Khomustakhsky Rural Okrug of Verkhnevilyuysky District in the Sakha Republic, Russia, located from Verkhnevilyuysk, the administrative center of the district. Its population as of the 2010 Census was 216, of whom 112 were male and 104 female, up from 210 as recorded during the 2002 Census.