Family name راجين (Rajen 
, Rajin , راجين 
) , across the world, is a common surname. The surname راجين is habitual in Mauritius, where it is quite a common surname, Serbia, where it is quite a rare surname, and Oman. Not in comparison with a country's population, it is commonest in India, Indonesia, and Bangladesh. More frequently, راجين is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rajin, Rajen | Bangladesh, South Africa, Indonesia, Nepal, India |
| راجين | Iraq, Palestinian Territory, Saudi Arabia |