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Cognomen Kolya (Коля , Kolya , Колиа ) , across the world, is a common family name. The cognomen Kolya is characteristic of Armenia, where it is quite a common surname, Moldova, and Belarus, where it is quite a rare surname. Measured by absolute frequency, it is commonest in India, Russia, and Armenia. Likewise, Kolya is the forename as well as the last name.