Dannenwalde Manor, Manor house in Dannenwalde, Brandenburg, Germany.

Dannenwalde Manor is a two-storey corps de logis with two single-storey side wings forming a cour d'honneur, located in Dannenwalde, part of Gransee. The main building has a nine-axis facade with a central projecting section, a columned portal bearing the inscription Non dormit qui me custodit, and a small balcony above the door. The side wings are used as apartments, while the main house awaits interior restoration.

The von Waldow family acquired the estate in 1692 and shaped it over generations. The property underwent Rococo modifications in the 18th century before the family lost ownership in 1945.

The neo-Gothic chapel opposite the main entrance dates from 1821 and stands on the axis of the manor. It holds the tombs of the von Waldow family, who owned Dannenwalde until their expropriation in 1945. The chapel, known as the "Kirche am Weg", has been restored and now serves cyclists on the Berlin–Copenhagen route as a place to stop.

The manor is easily accessible by car from Gransee and can be explored on foot around the grounds. Since restoration work is ongoing on the main building, access to certain areas may be limited.

The property served as a filming location for the 1941 film 'Der Weg ins Freie', giving it a place in German cinema history. After the war it became a school building, showing how it shifted from a private estate to a public space.