Surname Chainian (Chainian 
, Шаинян 
) , around the world, is a rare cognomen. The surname Chainian is characteristic of Russia, where it is a rare surname, Kyrgyzstan, where it is a very rare surname, and Argentina, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chainian | Argentina |
| Шаинян | Kyrgyzstan, Russia |