Groß Glienicker See (German pronunciation: [ˈɡʁoːs ˈɡliː.nɪkɐ zeː] ) is a lake in the states of Brandenburg and Berlin, Germany. At an elevation of 31.6 m, its surface area is 0.66 km². The border between the city of Potsdam and the city of Berlin runs in a north–south direction through the center of the lake, with the Potsdam locality of Groß Glienicke on the left shore and the Berlin locality of Kladow on the right shore.