Peter Werhahn (disambiguation)
Peter Werhahn is the name of the following people:
- Peter Wilhelm Werhahn (1802–1871), German timber merchant and sawmill owner
- Peter Werhahn (1842–1922), German banker and entrepreneur
- Peter Wilhelm (Eugen Hubert) Werhahn , (1880–1964) German banker and entrepreneur
- Peter H. Werhahn (1913–1996), German entrepreneur