The Vym' (Russian: Вымь, Vym; Komi: Емва, Emva) is a river in the Komi Republic, Russia. It is a tributary of the Vychegda in the basin of the Northern Dvina. It is 499 kilometres (310 mi) long, and its drainage basin covers 25,600 square kilometres (9,900 sq mi). Its average discharge is 196 cubic metres per second (6,900 cu ft/s).

The Vym has its sources in the southern foothills of the Timan Ridge. It runs towards the south, through a flat taiga landscape of coniferous forests and bogs. In the upper reaches of the river there are stretches of rapids. It joins the Vychegda at the settlement of Ust-Vym. The river is used for floating of timber and wood products, and it is navigable on its lower reaches.

Its main tributaries are, from the right: Vorykva, Edva, Pozheg and Chub, and from the left: Koin and Veslyana.