The
Kingdom of Gumma was one of the kingdoms in the
Gibe region of
Ethiopia that emerged in the 18th century. Its eastern border was formed by the bend of the
Didessa River, which separated it from (proceeding downstream to upstream)
Limmu-Ennarea to the northeast, and the kingdoms of
Gomma and
Gera to the south. Beyond its northern border were various
Macha Oromo groups, and to the west
Sidamo groups. Its territory corresponds approximately with the modern
woredas of
Gechi and
Didessa.