Boset is one of the districts in the Oromia of Ethiopia. Part of the East Shewa Zone located in the Great Rift Valley, Boset is bordered on the south by the Arsi Zone, on the west by the Awash River which separates it from Adama, on the north by the Amhara Region, and on the east by Fentale. The administrative center of the woreda is Welenchiti; other towns in Boset include Bofe, Bole and Doni.