Surname Altoyan (Altoyan 
) , around the world, is a very rare family name. The last name Altoyan is characteristic of Saudi Arabia, where it is a rare surname, and the United States, where it is an extremely rare surname. Very seldom, Altoyan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Altoyan | Saudi Arabia, United States |