The Denchya River is a river of southern Ethiopia. It is a south-flowing tributary of the Omo River, entering it on the right bank at 6°27′30″N 36°19′32″E / 6.45833°N 36.32556°E / 6.45833; 36.32556Coordinates: 6°27′30″N 36°19′32″E / 6.45833°N 36.32556°E / 6.45833; 36.32556.