NSB El 18 is a class of 22 electric locomotives built by Adtranz and Swiss Locomotive & Machine Works (SLM) for the Norwegian State Railways (NSB). The class is a modification of the Swiss Federal Railways Re 460 locomotive and built at Adtranz Strømmen in 1996 and 1997. The class remains the only mainline electric locomotive used by NSB, and is predominantly used on some intercity services and all night trains on the Bergen Line, Dovre Line and Sørland Line, as well as some regional trains.