The Arendal Line (Norwegian: Arendalsbanen) is a 45-kilometer (28 mi) long railway line between Arendal and Simonstad in Norway. At Nelaug, 37 kilometers (23 mi) north of Arendal, the line intersects with the Sørland Line. The southern section is electrified and provides a feeder passenger service. The line originally ran 90 kilometers (56 mi) north from Arendal to Treungen and the lake Nisser, but the upper-most part has been removed. The line is owned by the Norwegian National Rail Administration and operated by the Norwegian State Railways using Class 69 trains.