'Seagull I' was a British unrealised plan by the Special Operations Executive for the disruption of supplies of blister copper, pyrites and zinc concentrate produced at the Sulitjelma mines in the northern part of German-occupied Norway by means of an attack on the Fagerli electricity power plant (June/October 1942).

The outline project for an attack by a four-man Norwegian party was submitted for approval on 28 June and received preliminary approval, but was then postponed in October 1942 after 'Musketoon' had led to an increase in security in the area and at the Sulitjelma plant.