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Family name Lejeune (Lejeune
, Лежен
, לז'ן
) , in the world, is a common cognomen. The family name Lejeune is characteristic of Western Europe, particularly Belgium, where it is quite a common surname, France, and Luxembourg. In absolute terms, it most frequently occurs in France, Belgium, and the United States. Much less frequently, Lejeune is the forename as well as the last name.