|imagetext = Picture taken by [[User:Sven_R|Sven_R]]

'''Ruinenberg''' is a [[turf zone]] in the [[municipality]] of [[Municipality: Potsdam|Potsdam]] in the [[region]] of [[Region: Brandenburg|Brandenburg]] in [[Country: Germany|Germany]]. The Ruinenberg is a hill in the Bornstedt borough of Potsdam, located north of Sanssouci Park. In 1748, the Prussian king Frederick the Great had a water tank with a capacity of around 7,600 cubic metres (270,000 cu ft) built on top to supply the Sanssouci water features, and had it decorated with artificial ruins. From 1841 a surrounding landscape garden was laid out at the behest of King Frederick William IV of Prussia, according to plans designed by Peter Joseph Lenné.

This [[turf zone]] is located north of central [[Municipality: Potsdam|Potsdam]].