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Surname Labun (Labun
, Лабун
) , throughout the world, is a rare cognomen. The surname Labun is habitual in Eastern Europe, particularly Belarus, where it is quite a rare surname, Slovakia, where it is a rare surname, and Ukraine. Measured by absolute frequency, it is commonest in Eastern Europe, particularly Belarus, Ukraine, and Russia. Also, Labun is the forename as well as the last name.