Østbyen is a borough of the city of Trondheim, Norway consisting of the areas of Møllenberg, Nedre Elvehavn, Rosenborg, Lade, Strindheim, Jakobsli, Ranheim and Vikåsen. It has 39,171 residents.
Coordinates: 63°25′N 10°27′E / 63.417°N 10.450°E / 63.417; 10.450