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Surname Tashbayev (Tashbayev , Ташбаев ) , in all the world, is quite a rare cognomen. The cognomen Tashbayev is habitual in Kyrgyzstan, where it is quite a common surname, Azerbaijan, where it is quite a rare surname, and Kazakhstan. Not in comparison with a country's population, it is commonest in Kyrgyzstan, Russia, and Kazakhstan.