The Desná (called Divoká Desná upstream; German: Tess) is a river in the Czech Republic, a left tributary of the Morava River.

Because people went upstream when settling the landscape, the rivers with this name flowed as if from the right side (although they are actually left-side tributaries).

[2] The Desná originates in the territory of Loučná nad Desnou in the Hrubý Jeseník at the elevation of 1,333 m (4,373 ft) and flows to Postřelmov, where it enters the Morava River at an elevation of 281 m (922 ft).

[3] The longest tributaries of the Desná are:[4] The river flows through the municipal territories of Loučná nad Desnou, Velké Losiny, Petrov nad Desnou, Rapotín, Vikýřovice, Šumperk, Dolní Studénky, Bludov, Sudkov and Postřelmov.

[3] The upper course of the river flows through the Jeseníky Protected Landscape Area.