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