Cognomen Alvadzhyan (Alvadzhyan 
, Алваджян 
) , in all the world, is a very rare last name. The family name Alvadzhyan is habitual in Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Alvadzhyan | United States |
| Алваджян | Russia |