Family name Astoian (Астоян 
, Astoian 
) , around the world, is a rare last name. The cognomen Astoian is characteristic of Georgia, where it is quite a rare surname, Russia, where it is a rare surname, and Kazakhstan, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Russia, Georgia, and Ukraine. Likewise, Astoian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Астоян | Ukraine, Russia, Kazakhstan, Armenia |
| Astoian | Georgia, United States |