Norway's state railway, NSB (Norges Statsbaner), has two train stations downtown—Oslo Sentralstasjon (Oslo S) and a station at Nationaltheatret. Long-distance trains arrive at and leave from Oslo S Station. Suburban commuter trains use one or the other station.
NSB Customer Service. 81–50–08–88; 61–05–19–10; www.nsb.no.
Oslo S (Oslo Central Railway Station). Jernbanetorget 1, Sentrum, Oslo, Oslo, 0154. .