Jansen

The origin of the surname Jansen

Jansen means “son of Jan,” the Dutch form of John.

What kind of surname is Jansen?

As a patronymic surname, the surname Jansen was formed from a father's or ancestor's personal name — the single largest way hereditary surnames arose across Europe. Before family names became fixed, a man was often known as the son of his father (for example “John, son of Robert”), and over generations that link hardened into an inherited surname. Different cultures marked the relationship differently: English and Scandinavian names added “-son”, Irish and Scottish used “Mac” or “O’”, Slavic languages added “-ov”, “-ev” or “-vich”, and many languages simply reused the father's name unchanged. A patronymic surname therefore points back to a founding ancestor rather than a place or an occupation.

How Dutch surnames work

Dutch surnames frequently include a tussenvoegsel — a small connecting particle such as “van” (“of/from”), “de” (“the”) or “van der” (“of the”) — which points to a place of origin or a descriptive term, as in Van Dijk (“of the dike”) and De Jong (“the young”). Others are patronymic, often ending in “-sen” or “-s” (Jansen, “John's son”), or occupational. Surnames were made compulsory in the Netherlands under Napoleon in 1811, which fixed many previously fluid names.

Variants & spellings

• Janssen