Cognomen Aharjan (Aharjan 
) , in the entire world, is a very rare surname. The cognomen Aharjan is habitual in Malaysia, where it is a very rare surname, China, where it is an extremely rare surname, and India. More frequently, Aharjan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aharjan | India, China, Malaysia |