Family name Rajum (Rajum 
) , worldwide, is a very rare cognomen. The family name Rajum is characteristic of Malaysia, where it is a very rare surname, Georgia, and India, where it is an extremely rare surname. More prevalently, Rajum is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rajum | Indonesia, Malaysia, United States, India, Pakistan |