The Ik is a river in Russia that flows north to the Kama, joining it from the left. It flows through the Republics of Bashkortostan and Tatarstan and through Orenburg Oblast. The left tributaries of the Ik are Mellya, Menzelya, Dymka, and the right tributary is Usen. It is 571 kilometres (355 mi) long, and its drainage basin covers 18,100 square kilometres (7,000 mi2).