Johannes Janssen
Johannes Janssen is the name of the following people:
- Johannes Janssen (historian) (1829-1891), German historian
- Johannes Janssen (politician) (1868–1951), German politician (DNVP), MdL
See also:
- Jan Janssen (cyclist) ( Johannes Adrianus Janssen ; * 1940), Dutch cyclist
- John Janssen ( Johannes Janssen , 1835–1913), German-American theologian and clergyman, Bishop of Belleville
- Johannes Jansen
- Johann Janssen
- Hans Jansen
- Hans Janßen
