Namesakes
Nicasius Janssen of Heeze
(m) 1522-1572 
Saints
Arnold Janssen
(m) 1837-1909
Saints
Famke Janssen
(f) 1964-
Notable Actors and Entertainers (actor)
Vincent Janssen
(m) 1994-
Notable Athletes (soccer)
Dominique Janssen
(f) 1995-
Notable Athletes (soccer)