Bulun () is a rural locality (a selo), the only inhabited locality, and the administrative center of Aldansky Rural Okrug of Tattinsky District in the Sakha Republic, Russia, located from Ytyk-Kyuyol, the administrative center of the district. Its population as of the 2010 Census was 1,293, of whom 640 were male and 653 female, up from 1,271 as recorded during the 2002 Census.
The village is located in a flat area by river Tatta.