Sylva River (Russian: Сылва) is a river in Sverdlovsk Oblast and Perm Krai in Russia. It is 493 kilometres (306 mi) in length. The area of the basin is 19,700 square kilometres (7,600 sq mi). The Sylva River flows into the Chusovoy Cove of the Kama Reservoir. It freezes up in November and stays under the ice until April. Principal tributaries: Iren River, Babka River, Irgina River, Vogulka River (left); Barda River, Shakva River (right).