Friedrich Janssen
Friedrich Janssen is the name of the following people:
- Friedrich Janssen (politician, 1874) (1874–1959), German politician (DNVP), MdL Oldenburg
- Friedrich Janssen (politician, 1884) (1884–1959), German politician, Lord Mayor of Osnabrück
- Friedrich Janssen (Manager) (1887–1956), German industrial manager
- Friedrich Janssen (theologian) (* 1935), German theologian
- Friedrich Carl Janssen (* 1944), German bank manager
See also: