Graaf (the Dutch word for Count) or Graaff is a surname. Notable people with the surname include:
People Carlo Graaff (1914–1975), German politician Hannah Graaf (born 1978), Swedish glamour model and singer Magdalena Graaf (born 1975), Swedish model, singer, and author Sir David Graaff, 1st Baronet (1859 –1931), South African cold storage magnate and politician De Villiers Graaff (1913–1999), South African politician Hansie Graaff (born 1989), South African rugby player Jannie Graaff (1928–2015), South African welfare economist
See also
De Graaf or De Graaff, Dutch surname Van de Graaf (surname), Van de Graaff''' or Van der Graaf'', Dutch surname Graf (surname)