Family name Firun (Firun 
) , around the globe, is a very rare cognomen. The family name Firun is habitual in Argentina, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and India. More prevalently, Firun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Firun | Italy, Malaysia, India, Argentina, Bangladesh |