Family name Khairoullina (Хайруллина 
, Хаируллина , Khairoullina 
) , all around the world, is a common surname. The surname Khairoullina is characteristic of Russia, where it is quite a common surname, Kazakhstan, and Tajikistan, where it is quite a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Хайруллина | Kazakhstan, Uzbekistan, Russia, Belarus, Tajikistan |
| Хаируллина | Kazakhstan, Russia |
| Khairoullina | Canada, United States |