West Shewa Zone (Oromo: Shawaa Lixaa/Dhihaa) is a zone in Oromia Region of Ethiopia. This zone takes its name from the kingdom or former province of Shewa. West Shewa is bordered on the south by the Southwest Shewa Zone and the Southern Nations, Nationalities and Peoples Region, on the southwest by Jimma, on the west by East Welega Zone, on the northwest by Horo Gudru Welega Zone, on the north by the Amhara Region, on the northeast by North Shewa, and on the east by Oromia Special Zone Surrounding Addis Abeba. Its highest point is Mount Wenchi (3386 meters); other notable peaks include Mount Mengesha and Mount Wechacha. Towns and cities in West Shewa include Ambo.
Between 2002 and 2005, a number of districts were separated from West Shewa to create South West Shewa Zone.