The Yug (Russian: Юг) is a river in Kichmengsko-Gorodetsky, Nikolsky, and Velikoustyugsky Districts of Vologda Oblast and in Podosinovsky District of Kirov Oblast in Russia. It is 574-kilometer (357 mi) long, and the area of its basin is 35,600 square kilometers (13,700 sq mi). The Yug joins the Sukhona near the town of Veliky Ustyug, forming the Northern Dvina, one of the biggest rivers of European Russia.