Last name فرين (Fren 
, فرين 
, Frain 
) , around the world, is quite a common surname. The family name فرين is habitual in Lebanon, where it is quite a rare surname, Ireland, and Israel. Not in comparison with a country's population, it is the most numerous in the United States, Indonesia, and the United Kingdom. Also, فرين is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fren | France, United Kingdom, United States, Lebanon, Indonesia |
| فرين | Iran, Palestinian Territory, Sudan, Iraq, Morocco |
| Frain | France, Australia, United Kingdom, Ireland, United States |
| Frenn | Czechia, Canada, United States, Lebanon, Democratic Republic of the Congo |