Cognomen رل (Rell 
, Rôle 
, رل 
) , globally, is quite a rare surname. The family name رل is habitual in Kazakhstan, where it is quite a rare surname, Estonia, where it is a rare surname, and Ukraine. Measured by absolute frequency, it is the most numerous in Ukraine, Kazakhstan, and Russia. Also, رل is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rell | Philippines, Indonesia, United States, Democratic Republic of the Congo, Germany |
| Rôle | Democratic Republic of the Congo, France |
| رل | Saudi Arabia, Iraq |
| Руль | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |