Surname Чамьян (Chamian 
, Chamyan 
, Чамьян 
) , in all the world, is a rare cognomen. The last name Чамьян is habitual in Uruguay, where it is quite a rare surname, Russia, where it is a very rare surname, and Philippines. Very seldom, Чамьян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chamian | Canada, United States, Malaysia, Philippines, India |
| Chamyan | Russia, United States, Pakistan, India, Uruguay |
| Чамьян | Russia, Kazakhstan |