Grabner is a German surname. Notable people with the surname include:
Hermann Grabner (1886–1969), Austrian composer and music teacher Maximilian Grabner (1905–1948), Austrian Nazi Gestapo chief in Auschwitz, executed for crimes against humanity Michael Grabner (born 1987), Austrian ice hockey player Michelle Grabner (born 1962), American painter Siegfried Grabner (born 1975), Austrian snowboarder
See also Graebner Marshall Station, California, United States settlement formerly known as Grabners