Khomustakh (; , Xomustaax) is a rural locality (a selo) in Neryuktyayinsky Rural Okrug of Megino-Kangalassky District in the Sakha Republic, Russia, located from Nizhny Bestyakh, the administrative center of the district and from Pavlovsk, the administrative center of the rural okrug. Its population as of the 2002 Census was 34.