Bila Seyo was one of the 180 woredas in the Oromia Region of Ethiopia. It was divided between Gobu Seyo and Gudeya Bila woredas. Part of the East Welega Zone, Bila Seyo was bordered on the south by Wama Bonaya, on the southwest by Sibu Sire, on the west by Guto Wayu, on the north by Abe Dongoro, on the northeast by Jimma Horo, and on the east by the Mirab Shewa Zone. The administrative center of the woreda was ; other towns in Bila Seyo included Bila and .