Gräbner or Graebner is an Austrian surname, and may refer to:
- Carole Caldwell Graebner, (1943 – 2008), an American tennis player
- Clark Graebner, (1943-), a retired American professional tennis player
- Fritz Graebner, (1877 - 1934), a German ethnologist best known for his theory of the Kulturkreis
- Viktor Eberhard Gräbner (1914 - 1944), a Oberleutnant in the Heer who transferred to the Waffen SS