Koestner Family History
Koestner Surname Meaning
North German (Köstner): variant of Köster (see Koster).
German (Köstner): habitational name for someone from Kösten (near Bamberg) or Köstenberg.
German (Köstner): occupational name from the Bavarian Franconian dialect word Köstner ‘granary administrator treasurer’.
Compare Kostner.
Source: Dictionary of American Family Names 2nd edition, 2022
