Night trains of Norway (Norwegian: Nattog) are night sleeping car services provided by three different operators on four routes; Vy Tog on Oslo - Bergen (Bergen Line), Go-Ahead Norge on Oslo - Stavanger (Sørland Line), and SJ Norge on Oslo - Trondheim (Dovre Line) and Trondheim - Bodø (the Nordland Line).
All services are provided using WLAB-2 sleeping cars. El 18 locomotives with Class 7 cars are used on the Bergen and Sørland Lines, El 18 and Class 5 cars on the Dovre Line, while the service on the Nordland Line is provided using Di 4 engines with Class 5 cars. All night trains offer both sleeper cars with closed apartments with one or two beds in addition to regular sitting cars with individual seats in an open configuration.