West Hararge (Oromo: Hararghe Dhiha) is a zone in the Oromia Region of Ethiopia.

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.

Towns in West Hararghe include Chiro, Badessa, Gelemso, and Mieso, Asebot.

The majority of the inhabitants were Muslim, with 85.44% of the population having reported they practiced that belief, while 11.28% professed Ethiopian Orthodox Christianity.

[7] The Oromia Regional government announced 25 May 2006 that 429 drinkable water projects had been completed in the Zone, which combined with other ongoing projects would bring drinkable water to 72,300 inhabitants and raise the percentage of access from 37% to 47%.