Cognomen Арустанян (Арустанян 
, Arustanyan 
) , in all the world, is a rare last name. The last name Арустанян is characteristic of Rwanda, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Арустанян | Kazakhstan, Russia, Ukraine |
| Arustanyan | Rwanda |