Cognomen Дадасян (Дадасян 
) , worldwide, is a rare last name. The surname Дадасян is characteristic of Eastern Europe, particularly Russia, where it is a very rare surname, and Ukraine. Much less frequently, Дадасян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Дадасян | Ukraine, Russia, Armenia |