Family name Kamjin (Kamjin 
) , in all the world, is a very rare last name. The cognomen Kamjin is characteristic of South-eastern Asia, particularly Indonesia, where it is a very rare surname, and Thailand, where it is an extremely rare surname. Very seldom, Kamjin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kamjin | Indonesia, Thailand, India |