Clarence River may refer to: Clarence River (New South Wales), in northern New South Wales, Australia Clarence River (Tasmania), in southern Tasmania, Australia Clarence River (Alaska–Yukon), rises in the Yukon Territory of Canada and crosses the border several times into the U.S. state of Alaska Waiau Toa / Clarence River, on the South Island of New Zealand Clarence (river), a tributary of the Lys in northern France