Surname Rouj (Rouge 
, Rouj 
) , in all the world, is a common cognomen. The surname Rouj is habitual in Algeria, where it is quite a common surname, Tunisia, and France, where it is quite a rare surname. Much less frequently, Rouj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rouge | Cameroon, Tunisia, Morocco, Algeria, France |
| Rouj | Tunisia, Morocco, Algeria, United States, France |