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Surname Tyagunov (Тягунов
, Tyagunov
, Тиагунов
) , across the world, is quite a rare cognomen. The surname Tyagunov is habitual in Russia, where it is quite a rare surname, Belarus, where it is a rare surname, and Latvia. Measured by absolute frequency, this name is the most popular in Eastern Europe, particularly Russia, Ukraine, and Belarus.