Family name Жаркынбай (Жаркынбай 
) , throughout the world, is a rare surname. The family name Жаркынбай 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. Likewise, Жаркынбай is the forename as well as the last name.