Sasiga is one of the woredas in the Oromia Region of Ethiopia and a part of the Misraq (East) Welega Zone. Sasiga is bordered on the south by Diga Leka, on the west by the Benishangul-Gumuz Region, on the northwest by Limmu, on the north by an exclave of the Benishangul-Gumuz Region and on the east by Guto Wayu. The administrative center of this woreda is Galo. Other towns in Sasiga include Handhura Balo,Bareda,Angar,Arb Gebeya, Ehud Gebeya, Gute and Tsige .
Part of this woreda is characterized by its undulating hills. Rivers include the Karsa, Gumbi, Hare, Didiga, Kobo and the Bege Rivers. A survey of the land in this woreda shows that 11.9% is arable or cultivable, 2.8% is pasture, 1.6% is forest and the remainder (83.7)% is swampy, marshy or otherwise unusable. Forested land is organized into the Danbi, Laga Ayya, Baloo, Bareda and Gumbi natural forests and the Tsige State Forest. Local landmarks include the Kolobo Cave and the Bereda and Cumbi Falls.Coffee is an important crop in this woreda with over 5,000 hectares of plantation.
Industry in the woreda includes 3 grain mills. There are 7 Potato Associations with 5,272 members and 5 Farmers Service Cooperatives with 4,727 members. Sasiga has 54 kilometers of dry weather roads and no all-weather road for an average road density of 57.6 kilometers per 1,000 square kilometers. About 11% of the total population has access to drinking water.
Sasiga was one of six woredas in Misraq Welega selected for resettlement in 2003; the others being Guto Wayu, Diga Leka, Jimma Arjo, Sibu Sire and Gida Kiremu. Initially, 40,641 people were resettled in these districts from the Hararghe and Semien Shewa Zones, but due to crop failures, the number had fallen to 37,879 people.