Family name Khubaibullin (Khubaibullin 
, Хубайбуллин 
) , in the entire world, is a very rare surname. The family name Khubaibullin is characteristic of Russia, where it is a very rare surname, Kazakhstan, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khubaibullin | United States, Russia |
| Хубайбуллин | Kazakhstan, Russia |