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Surname Konstant (Konstant , Констант ) , globally, is quite a rare cognomen. The surname Konstant is habitual in Greece, where it is quite a rare surname, Czechia, where it is a rare surname, and Australia, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Greece, the United States, and Germany. Likewise, Konstant is the forename as well as the last name.