Mirab Hararghe (or "West Hararge") is one of the Zones in the Ethiopian Region of Oromia. West Hararghe takes its name from the former province of Hararghe. West Harerge is bordered on the south by the Shebelle River which separates it from Bale, on the southwest by Arsi, on the northwest by the Afar Region, on the north by the Somali Region and on the east by East Hararghe.