Yarensk is a rural locality (a selo) and the administrative center of Lensky District of Arkhangelsk Oblast, Russia, located on the bank of the Vychegda River near its confluence with the Yarenga. Population:

The town of Yarensk was documented as early as 1384 as a station on the road leading from Novgorod to the Ural Mountains. In the Russian Empire, it was the seat of a huge uyezd within Vologda Governorate. Much of the present-day Komi Republic was administered from Yarensk. The Tsar used the town as a place of exile, most notably for Prince Vasily Galitzine.