Hofgärtnerhaus Düsseldorf, Museum building in Hofgarten, Germany

The Hofgärtnerhaus is a mansion with a curved design and mansard roof situated in Düsseldorf's Hofgarten park. It currently contains the Theater Museum, which displays objects and information related to performance history.

The structure was built in 1769 as a residence for the court gardener under architect Nicolas de Pigage. French military bombardment destroyed it in 1796, but it was reconstructed in 1802 with further modifications made decades later.

The building's name refers to the court gardener who lived and worked here. From 1821 it housed staff of Prince Friedrich of Prussia and painters of the Düsseldorf school, including Alfred Rethel, alongside the widow Hilgers' coffee house. Today it holds the city's Theater Museum, and Freifrau von Kö starts her guided city tours from here.

The Hofgärtnerhaus stands on Jägerhofstraße inside the Hofgarten. A central gateway passage, rebuilt in 1802, opens onto the park's path axes, with an avenue running to the northwest. The Theater Museum occupies the building; the surrounding park paths make it easy to combine a visit with a walk.

The 1780 extension by builder Peter Köhler added side wings and raised the building by one storey. In the same period the house hosted balls, concerts and private theatricals, so the court gardener's residence also served as a venue.