Asosa is one of the three Zones in Benishangul-Gumuz Region of Ethiopia. This Zone was named after the Asosa Sultanate, which had approximately the same boundaries. Asosa is bordered on the south by the Mao-Komo special woreda, on the west by Sudan, and on the northeast by the Kamashi. The largest town in this zone is Asosa. Its highest point is Mount Bambasi, located in the woreda of the same name.