Trondenes Fort is a fort situated on the Trondenes peninsula in the municipality of Harstad in Troms og Finnmark county, Norway. It is located about 2.5 kilometres (1.6 mi) north of the town of Harstad. The fort has been the main base for the Norwegian Coastal Ranger Command since 2002. The fort was built in 1943 by the Nazis occupying Norway during World War II as a part of the Atlantic Wall.