Kestner Gesellschaft 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.

Wilhelm Siegfried Kurt von Debschitz was a German painter, interior designer, craftsman, art teacher and founding director of an influential art school in Munich.