Cognomen Tarosian (Tarosian 
, Таросьян 
) , in the world, is a very rare family name. The cognomen Tarosian is characteristic of Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tarosian | United States |
| Таросьян | Russia |