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Last name Leyn (Leyn
, Лейн
, Леин
) , in all the world, is quite a rare cognomen. The cognomen Leyn is habitual in Belgium, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Bulgaria. In absolute terms, the name is most common in Russia, Indonesia, and Belgium. Much less frequently, Leyn is the forename as well as the last name.