The Kingdom of Jimma was one of the kingdoms in the Gibe region of Ethiopia that emerged in the 19th century. It shared its western border with Limmu-Ennarea, its eastern border with the Sidamo Kingdom of Janjero, and was separated from the Kingdom of Kaffa to the south by the Gojeb River. Jimma was considered the most powerful militarily of the Gibe kingdoms. Dawro, an Ometo dialect, was the native language; it later slowly gave way to Oromo.