Grassmann (surname)
Grassmann, Graßmann or Grassman is a German surname. Notable people with the surname include:
; Grassmann
- Dietrich Graßmann, German Luftwaffe pilot
- Hans Grassmann, German physicist
- Hermann Grassmann, German linguist, physicist, and mathematician
- Justus Grassmann, German World War I flying ace
- Marcelo Grassmann, Brazilian engraver and draughtsman
- Thomas Grassmann, American historian and archaeologist