The Volchina (Russian: Волчина) is a river in Vyshnevolotsky, Udomelsky, and Maksatikhinsky Districts of Tver Oblast in Russia. It is a left tributary of the Mologa. It is 106 kilometres long, and the area of its basin 3,050 square kilometres. The main tributaries are the Tifina (left) and the Vorozhba (right).
