Trondheim Bilruter or TBR was a municipally owned bus company in Trondheim, Norway between 1951 and 1974. It was merged with the tram operators Trondheim Sporvei and A/S Graakalbanen in 1974 to form Trondheim Trafikkselskap. It is now part of Team Trafikk, a subsidiary of Nettbuss.