'Alfriston' was a British unrealised plan by the Special Operations Executive to destroy the Knaben molybdenum mines near Fjotland, about 60 miles (100 km) inland from the southern tip of German-occupied Norway (autumn 1941 onward).

Molybdenum was believed by the British to be the most important raw material that Germany’s war industries obtained from Norway, so the SOE, Combined Operations HQ and Royal Air Force all showed interest denying this site’s product to Germany. It was eventually left to the RAF and USAAF, which launched attacks against the target in March and October 1943, and again in 1944.