Tyung River (Russian: Тюнг) is a river in Yakutia, Russia. It is a left tributary of the Vilyuy (Lena's basin). The length of the river is 1,092 kilometres (679 mi). The area of its basin is 49,800 square kilometres (19,200 sq mi). The Tyung freezes up in October and stays icebound until the second half of May to early June.