The Uzh is a river in Ukraine and Slovakia. Etymologists disagree about the origin of the name of the river. The Uzh is a tributary of the Laborets River, a river that flows in the Tysa Lowland in Zakarpattia Oblast of western Ukraine. The river feeds numerous industries and is a source of drinking water and irrigation. It also has a hydropower station on it. S…The Uzh is a river in Ukraine and Slovakia. Etymologists disagree about the origin of the name of the river. The Uzh is a tributary of the Laborets River, a river that flows in the Tysa Lowland in Zakarpattia Oblast of western Ukraine. The river feeds numerous industries and is a source of drinking water and irrigation. It also has a hydropower station on it. Several important cities lie along its course, including Uzhhorod.