Janson Family History
Janson Name Meaning
Americanized form (and a rare Swedish variant) of Swedish Jansson a cognate of 4 and 5 below. Americanized form of Dutch Flemish North German Norwegian and Danish Jansen and Janssen cognates of 4 and 5 below. French: from the personal name Janson a variant of Jeanson . Dutch: from Janszoon a patronymic from the personal name Jan ‘John’. This is a less common but still quite frequent variant of Jansen . English: patronymic from the Middle English personal name Jan a common form of John + son; compare Johnson and Jenson with which this name was interchangeble.
Source: Dictionary of American Family Names 2nd edition, 2022