Geissler

Unfortunately the meaning currently given is wrong such as it contributes only marginally to the many families carrying this name. The main derivation of this name is from the given name Giselher, see http://www.namenforschung.net/id/name/407/1 and http://www.namenforschung.net/id/name/19644/1 (both article are in German). [noted -ed]

Also a Jewish last name.