Cognomen Кабылбай (Кабылбай 
, Kabylbay) , worldwide, is a very rare surname. The surname Кабылбай is characteristic of Kyrgyzstan, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Russia, where it is an extremely rare surname. More prevalently, Кабылбай is the forename as well as the last name.