Bulen is one of the 20 woredas in the Benishangul-Gumuz Region of Ethiopia. It is named after its highest point, Mount Bulen. Part of the Metekel Zone, Bulen is bordered by Dangur in the north, Mandura in the northeast, Dibate in the east, the Abay River on the south (which separates it from the Kamashi Zone), and by Wenbera in the west. Its largest settlement is Bulen.
Bulen is a town in western Ethiopia. Located in the Metekel Zone of the Benishangul-Gumuz Region, Bulen is the largest settlement in Bulen woreda.
Based on figures from the Central Statistical Agency in 2005, this town has an estimated total population of 5,615, of whom 2,654 were males and 2,961 were females. According to the 1994 national census, its total population was 3,264 of whom 1,536 were males and 1,728 were females.