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Surname Kydyrbay (Кыдырбай , Kydyrbay ) , in the world, is a rare cognomen. The family name Kydyrbay is characteristic of Kyrgyzstan, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Russia, where it is an extremely rare surname. More prevalently, Kydyrbay is the forename as well as the last name.