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 | Philippines, Malaysia, Canada, United States, India |
| Chamyan | Pakistan, Russia, United States, Uruguay, India |
| Чамьян | Kazakhstan, Russia |