Königsberg, Hill in the Harz near Goslar, Lower Saxony, Germany

Königsberg is a hill in the Harz mountains, about 454 metres high, located roughly 2 km southwest of Goslar's historic centre between the Grane Reservoir and the Steinberg. On its southwest summit, at about 435 metres, stand the ruins of a former tuberculosis convalescent home, later a children's home, known as the Königsberg Sanatorium.

The Königsberg's documented history centres on its southwest knoll at about 435 m, where the ruins of a tuberculosis convalescent home stand. The institution later served as a children's home and is known as the Königsberg Sanatorium. The sources record no medieval use of the hill.

The hill is named Königsberg, "King's Mountain", after its royal-sounding name rather than any documented royal event. Its best-known landmark is the ruin of the Königsberg Sanatorium, a former tuberculosis convalescent home later used as a children's home, which stands on the southwest summit at about 435 metres.

Several marked trails lead to the summit from different directions with varying difficulty levels. Sturdy footwear and weather-resistant clothing are recommended, as conditions can change quickly at higher elevations.

The hill has two summits: the main one reaches about 454 m, while the ruins of the Königsberg Sanatorium stand on the southwest knoll at roughly 435 m. The building first served as a tuberculosis convalescent home and later as a children's home.