Family name Тер-Ованесьян (Тер-Ованесьян 
) , throughout the world, is an extremely rare surname. The cognomen Тер-Ованесьян is characteristic of Eastern Europe, particularly Ukraine, where it is a very rare surname, and Russia, where it is an extremely rare surname. Parts of the name also exists independently as a first name Тер, and a last name Ованесьян.
| VARIANT | COUNTRY |
|---|---|
| Тер-Ованесьян | Ukraine, Russia |