Last name ناج (Naj 
, ناج 
) , across the world, is a common surname. The surname ناج is habitual in Belize, where it is quite a common surname, India, where it is quite a rare surname, and Qatar. Measured by absolute frequency, the name is most common in India, Morocco, and Bangladesh. Much less frequently, ناج is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Naj | Syria, Saudi Arabia, Bangladesh, Morocco, India |
| ناج | Iraq, Morocco, Yemen |