Family name Terpogosian (Terpogosian 
, Терпогосян 
) , all around the world, is a very rare surname. The surname Terpogosian is habitual in Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Terpogosian | United States |
| Терпогосян | Russia |