Cognomen Haitbaev (Хайтбаев 
, Haitbaev , Хаитбаев ) , throughout the world, is a rare last name. The cognomen Haitbaev is characteristic of Kyrgyzstan, where it is quite a rare surname, Kazakhstan, where it is a rare surname, and Belarus. Not in comparison with a country's population, the name is most common in Kyrgyzstan, Russia, and Kazakhstan.