The Cheremosh River (; ; ) is a river in western Ukraine, right-bank tributary of the river Prut. Chornyi Cheremosh is 87 km long with a basin of 856 km<sup>2</sup> and Bilyi Cheremosh is 61 km long with a basin of 606 km<sup>2</sup>. The river starts in the Carpathian Mountains and flows roughly SW to NE. It leaves the Bukovina Obchinas (a mountain range in Outer Eastern Carpathians stretching to Ukraine and Romania) to the river's right, and the historic subregion of Pokuttia to the river's left side.
It flows along the borderline of the historic regions of Bukovina and Galicia.