Tragheim was a quarter of northern Königsberg, Germany. Its territory is now part of Kaliningrad, Russia.
Tragheim was first documented in 1299, but probably already existed as an Old Prussian farming village in 1255 when the Teutonic Knights conquered Sambia during the Prussian Crusade. The German name Tragheim was derived from the Prussian Trakkeim, meaning a village in a forest clearing (similar to Trakehnen).Germans were a minority in the village along the Schlossteich and the Oberteich during the Middle Ages; by 1535 Prussian Lithuanians were also documented in Tragheim.
Tragheim became a Freiheit suburb under the control of Königsberg Castle, receiving its own court in 1528 and its own seal in 1577. Its coat of arms depicted a brown deer's head between two green fir trees on a blue field.
While Tragheim had been excluded from medieval Königsberg's walls, the village was included within the greater Baroque fortifications constructed during the 1620s. Neighboring quarters were the Lustgarten and Burgfreiheit to the south, Steindamm to the west, the city walls to the north, the Oberteich to the northeast, and the Schlossteich to the east. Farther to the north beyond the walls was the village of Tragheimsdorf and the heath known as the Tragheimer Palve.