Abaya is one of the woredas in the Oromia Region of Ethiopia. It is part of former Gelana Abaya woreda what was divided for Abaya and Gelana woredas. Part of the Borena Zone, Gelana Abaya was bordered on the south by Hagere Mariam, and on the west, north and east by the Southern Nations, Nationalities, and Peoples Region (SNNPR). Lake Abaya, on the western border, is divided between this woreda and the SNNPR.