Orankesee is a lake in Berlin, Germany. Its surface area is . The Orankesee is a lake without inflow or outflow. Together with the nearby Obersee lake, it forms the center around which the Hohenschönhausen villa quarter developed. The Orankesee belongs to a chain of glacial lakes that extends from the Barnim plateau to the Berlin Urstromtal. The name Oranke derives from the Slavic word Roderanke, meaning “reddish-brown lake.”