Shosha River (Russian:Шо́ша) is a river in Tver and partially Moscow Oblasts in Russia, a right tributary of the Volga River. The length of the Shosha River is 163 kilometres. The area of its basin is 3,080km². The river flows into the Ivankovo Reservoir. The Shosha freezes up in November– early January and stays icebound until late March– early April.