The Lozva (Russian: Лозьва) is a river in Sverdlovsk Oblast in Russia. At its confluence with the Sosva, the Tavda is formed. The river is 637 kilometres (396 mi) long, and its basin covers 17,800 square kilometres (6,900 sq mi). The river freezes up in October or early November and stays icebound until late April or early May. Its main tributaries are the Pynovka, Bolshaya Yevva, Ponil, and Ivdel.