The Singsaker Line (Norwegian: Singsakerlinjen) was a branch of the Trondheim Tramway which ran from Øya and Elgeseter to the neighborhoods of Singsaker, parts of Tyholt and Rosenborg in Trondheim, Norway. The line branched off from the Elgeseter Line at the Student Society. It was double track until Tyholtveien, after which it ran through a loop through Rosenborg. It was served by Line 3, which continued through the city center to Trondheim Central Station.