Van de Graaf
Van de Graaf, also spelled van de Graaff, van der Graaf or van der Graaff, is a Dutch toponymic surname. Although graaf is a Dutch noble title similar to "count", here it refers to an old term for a canal with the same origin in the verb graven as gracht and grave. The small fortified city Grave, named for its canal, is the origin of at least one family "Van de Graaf". Notable people with this surname include the following:
; Van de Graaf
;Van de Graaff
- Adrian Van de Graaff, American college football player and coach, brother of Robert
- Freek van de Graaff, Dutch rower, unrelated to Bobbie and Jan
- Hargrove Van de Graaff, American college football player, brother of Robert
- Jan van de Graaff, Dutch rower, unrelated to Bobbie and Freek
- Peter Van de Graaff, American singer and radio personality
- Robert J. Van de Graaff, American physicist
- William T. Van de Graaff, American football player, brother of Robert
;Van der Graaf
;Van der Graaff
