Family name Firov (Firov 
, Фиров 
) , globally, is a rare cognomen. The last name Firov is characteristic of Bulgaria, where it is a rare surname, Russia, and Kazakhstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Firov | Ukraine, Bulgaria, United States, India, Russia |
| Фиров | Kazakhstan, Ukraine, Russia, Bulgaria |