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Family name Nigul (นิกูล , Nigul ) , worldwide, is a rare cognomen. The last name Nigul is characteristic of Estonia, where it is quite a common surname, Lithuania, where it is a rare surname, and Thailand, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Estonia, India, and Lithuania. Also, Nigul is the forename as well as the last name.