Grandjean Family History
Grandjean Name Meaning
French and Swiss French: from grand ‘tall large’ + the personal name Jean (equivalent of John ) hence a nickname meaning ‘Big John’ applied in a literal or ironical sense or a distinguishing name between members of the same family with a common personal name. This surname is also found in Belgium (mainly Wallonia) and Denmark.
Source: Dictionary of American Family Names 2nd edition, 2022