Jan Janssen
Jan Janssen is the name of the following people:
- Jan Janssen (cyclist) (* 1940), Dutch cyclist
- Jan Janssen (ice hockey player) (* 1952), Dutch ice hockey player
- Jan Janssen (theologian) (* 1963), German theologian and bishop
- Jan Jakobs Janssen (1925–1970), German pilot
- Jan-Peters Janssen (1937-2017), German sports psychologist
See also:
- Johannes Janssonius (1588–1664), Dutch cartographer and publisher