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Surname Leyder (Leyder , Лейдер ) , throughout the world, is quite a rare cognomen. The surname Leyder is habitual in Luxembourg, where it is quite a common surname, Belgium, where it is quite a rare surname, and Nicaragua, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Belgium, France, and Colombia. Likewise, Leyder is the forename as well as the last name.