The Parabel (Russian: Парабель) is a river in the Tomsk Oblast in Russia. It is a left tributary of the Ob. The Parabel is 308 kilometres (191 mi) long, and its basin covers 25,500 square kilometres (9,800 sq mi). The river is formed at the confluence of the rivers Kyonga and Chuzik. The Parabel freezes in the second half of October to early November and stays under the ice until late April to early May.