Family name Kadyrbay (Кадырбай 
, Кадырбаи , Кадирбаы ) , in all the world, is a rare cognomen. The last name Kadyrbay is habitual in Kyrgyzstan, where it is quite a rare surname, Kazakhstan, where it is a very rare surname, and Russia, where it is an extremely rare surname. More frequently, Kadyrbay is the forename as well as the last name.