Krasnoborsk (Russian: Краснобо́рск) is a rural locality (a selo) and the administrative center of Krasnoborsky District, Arkhangelsk Oblast, Russia, located on the left bank of the Northern Dvina.

In 1780, it was renamed Krasnoborsk and was granted town rights as the seat of Krasnoborsky Uyezd in the newly established Vologda Viceroyalty.

[9] On 10 April 1924, the Krasnoborsky district was established, at the time as a part of the Northern Dvina Governorate.

Krasnoborsk is located on the left bank of the Northern Dvina, between the confluences of the Nechmezh (south) and Lyabla (north), approximately opposite to the confluence of the Uftyuga, a major tributary of the Northern Dvina.

Aleksandr Borisov, a Russian landscape painter, had an estate in the village of Gorodishchenskaya, close to Krasnoborsk.