Cognomen Гаибуллаев (Гаибуллаев 
, Gaybullaev 
, Gaibullaev ) , in the world, is a rare surname. The last name Гаибуллаев is habitual in Uzbekistan, where it is quite a rare surname, Azerbaijan, and United Arab Emirates, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Гаибуллаев | Azerbaijan, Kyrgyzstan, Russia |
| Gaybullaev | Uzbekistan, Russia, United Arab Emirates, United States, Lithuania |
| Gaibullaev | Uzbekistan, Russia |
Haibullaev, and Haybullaev