Kotlas is a town in Arkhangelsk Oblast, Russia.

Kotlas may also refer to: Kotlas Urban Okrug, a municipal formation which the town of oblast significance of Kotlas in Arkhangelsk Oblast, Russia is incorporated as Kotlas Airport, an airport in Arkhangelsk Oblast, Russia MT Kotlas, a Russian product tanker

See also Kotla (disambiguation) Kotlassky District, a district of Arkhangelsk Oblast, Russia