Green
Gruen is the family name of the following people:
- Arno Gruen (1923–2015), German-Swiss writer, psychologist and psychoanalyst
- Bob Gruen (* 1945), American photographer
- Dietrich Gruen (1847–1911), clockmaker of German descent
- Erich S. Gruen (* 1935), American-Austrian ancient historian
- Victor Gruen (1903–1980), Austrian architect and town planner
See also: