The Tym is a river in Krasnoyarsk Krai and Tomsk Oblast in Russia, right tributary of the Ob. The length of the river is 950 kilometres (590 mi), and it drains a basin of 32,300 square kilometres (12,500 sq mi). The Tym freezes up in October to early November and stays icebound until late April to May. It is navigable within 560 kilometres (350 mi) of its estuary.