Janssen Family History
Janssen Surname Meaning
Dutch, Flemish, North German, East Frisian, Norwegian, and Danish: variant of Jansen. This form has been particularly established in the southeastern Netherlands and adjacent Belgium while it is rare in Norway and Denmark.
The surname of Flemish and German origin is also found in the Walloon part of Belgium.
Source: Dictionary of American Family Names 2nd edition, 2022
