Family name Нефтуллаев (Нефтуллаев 
) , in all the world, is a very rare cognomen. The surname Нефтуллаев is habitual in Kyrgyzstan, where it is a very rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Нефтуллаев | Kyrgyzstan, Russia |