Peter Matthiessen
Peter Matthiessen is the name of the following people:
- Peter Matthiessen (lawyer) (1720–1812), German lawyer, administrator and mayor of Copenhagen
- Peter Matthiessen (politician) (1907-1995), German politician (CDU)
- Peter Matthiessen (Author) (1927-2014), American author and environmentalist
- Peter Matthiessen (physician) (1944–2019), German physician and anthroposophist
- Peter Friedrich Matthiessen (1800–1865), German author and lawyer