Last name Topouzian (Топузян 
, Topouzian 
) , throughout the world, is a rare cognomen. The last name Topouzian is characteristic of Belarus, where it is a rare surname, Greece, and Bulgaria. Not in comparison with a country's population, it is commonest in Russia, Belarus, and the United States. Much less frequently, Topouzian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Топузян | Armenia, Russia, Belarus, Bulgaria, Ukraine |
| Topouzian | Canada, Australia, United States, Greece, France |