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Surname Klech (Klech , Клеш , Клех ) , globally, is a rare cognomen. The cognomen Klech is characteristic of Eastern Europe, particularly Czechia, where it is quite a rare surname, Ukraine, where it is a rare surname, and Poland. Measured by absolute frequency, it most frequently occurs in Eastern Europe, particularly Czechia, Ukraine, and Russia. Likewise, Klech is the forename as well as the last name.