Kestner Gesellschaft (Kestner Society) is an art institution in Hanover, Germany, founded in 1916 to promote the arts. Its founders included the painter Wilhelm von Debschitz (1871–1948). The association blossomed under the management of Alexander Dorner and Justus Bier, pioneering modern art.
After World War II, Alfred Hentzen took over the management in 1947, followed by Fritz Schmalenbach. In 1997 the Kestner Gesellschaft moved into new premises at Goseriede 11, the former site of the Goseriede Aquatic Center. The new gallery is next to the Hannoversche Allgemeine Zeitung, Hanover's newspaper.
The institution hit the headlines in 2005 when it exhibited a mud house created by Spanish artist Santiago Sierra featuring a room with mud floor reminiscent of Hanover's Maschsee, an artificial lake.
From 2015 to 2019, institution’s first female director was Christina Végh.
The current director is Adam Budak, who took on the position in November 2020.