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Family name Liāna (Лиана , Ліана , Liāna ) , throughout the world, is quite a rare cognomen. The cognomen Liāna is habitual in Armenia, where it is quite a common surname, Turkmenistan, where it is quite a rare surname, and Azerbaijan. Measured by absolute frequency, it is the most numerous in Armenia, Russia, and Uzbekistan. More frequently, Liāna is the forename as well as the last name.