Kersa is a woreda in the Jimma Zone of the Oromia Region of Ethiopia. It is bordered on the south by Dedo, on the southwest by Seka Chekorsa, on the west by Mana, on the north by Limmu Kosa, on the northeast by Tiro Afeta, and on the southeast by Omo Nada. Towns and cities in Kersa include Jimma, the zone's capital, and Serbo.