Gustav Rau
Gustav Rau is the name of the following people:
- Gustav Rau (athlete) (1878– ??), German hurdler
- Gustav Rau (hippologist) (1880–1954), German hippologist
- Gustav Rau (entrepreneur) (1886–1960), German entrepreneur
- Gustav Rau (art collector) (1922–2002), German doctor, philanthropist and art collector