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Last name Janssens (Janssens
, يانسون
, ינסן
) , in the entire world, is a common cognomen. The surname Janssens is characteristic of Western Europe, particularly Belgium, where it is a common surname, Netherlands, where it is quite a common surname, and Luxembourg, where it is quite a rare surname. In absolute terms, it is commonest in Western Europe, particularly Belgium, Netherlands, and France. Much less frequently, Janssens is the forename as well as the last name.