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Family name Djumaev (Джумаев , Djumaev , Дюмаев ) , in the world, is a common cognomen. The cognomen Djumaev is characteristic of Kyrgyzstan, where it is quite a common surname, Tajikistan, and Azerbaijan, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in Russia, Tajikistan, and Uzbekistan.