Rusenski Lom
 The Rusenski Lom (Bulgarian: Русенски Лом) is a river in northeastern Bulgaria the last major right tributary of the Danube. It is formed by the rivers Beli Lom and Cherni Lom the former taking its source south of Razgrad and the latter southeast of Popovo. The source of the Beli Lom at 43°24′N 26°40′E and 360 m above sea level is provisionally accepted as the point where the Rusenski Lom starts.