Son of Jan
A patronymic surname of Dutch and Germanic origin, meaning 'son of Jan'. Jan is the Dutch and Scandinavian form of John, which ultimately derives from the Hebrew name Yochanan, meaning 'God is gracious'.
Fewer than 5 boys were named Janzen in 2025.
Former NFL safety for the New York Giants
US births per 5-year period, 1990–present (SSA data).