Kharaa River (Mongolian: Хараа гол) is a river in central northern Mongolia. It starts in a confluence between and near the center of Batsümber sum in Töv aimag, and then continues in a roughly north-western direction through Selenge aimag.On the last stretch it flows through the Darkhan-Uul aimag, running along its western border and passing the city of Darkhan before entering the Orkhon River near the northern tip of the aimag.