Jansen (surname)
Jansen is a Dutch/Flemish and Low German patronymic surname meaning son of Jan, a common derivative of Johannes. It is equivalent to the English surname Johnson. The near homonyms "Jensen" and "Jansson" are its Danish, Norwegian and Swedish counterparts. Jansen is a very common surname in the Dutch-language area. Jansen is one of the most common names in the Netherlands and the most common when combined with variant spelling Janssen. In Belgium, the variant Janssens is the second most common name.