Langøya is the third largest island of Norway, with an area of 850.2 square kilometres (328.3 sq mi). The island is a part of the Vesterålen archipelago in Nordland county, Norway. The island includes the municipalities of Bø and Øksnes as well as parts of the municipalities of Sortland and Hadsel.

Vesterålen is a district and archipelago in Nordland county, Norway. It is located just north of Lofoten and west of Harstad. It is the northernmost part of Nordland county. Sortland is the largest town, situated near the center of the archipelago. Vesterålen includes the municipalities of Andøy, Bø, Hadsel, Sortland, and Øksnes.