Janssen

Janssen is primarily a surname of Dutch and German origin that has occasionally been adopted as a masculine given name. It originated as a patronymic surname meaning 'son of Jan' (the Dutch form of John). As a first name, Janssen represents a modern trend of using family surnames as given names. It gained some recognition through notable bearers of the surname, including actor Famke Janssen. Though uncommon as a first name globally, it has seen limited usage in the Netherlands and among families with Dutch heritage. Janssen offers a distinctive sound with its strong consonants and European flair.

Pronounced YAHN-sen.

As of October 2026, Janssen ranked #11477 in US births in 2024 SSA, peaked at #2070 in 1964.