Family name Kamjiam (Kamjiam 
) , in the world, is a very rare last name. The cognomen Kamjiam is habitual in South-eastern Asia, particularly Singapore, where it is a rare surname, and Thailand, where it is a very rare surname. Much less frequently, Kamjiam is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kamjiam | Singapore, Thailand |