Boullen Family History
Boullen Surname Meaning
Probably a variant of French Boulogne from one of the places so called in N France (Pas-de-Calais Nord). Compare English Bullen.
Alternatively, a variant of French Boullon from Old French bollon ‘clasp bolt’ perhaps for someone who made such things.
Possibly a late variant spelling of Bullen.
Source: The Oxford Dictionary of Family Names in Britain and Ireland, 2016
