Throughout the world, Тумасян (Тумасян 
, Tumasjan 
, Tumasyan 
) is an extremely rare unknown gender first name. More frequently, Тумасян is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Тумасян | Kazakhstan, Armenia, Russia, Belarus, Ukraine |
| Tumasjan | Germany, Denmark |
| Tumasyan | Uzbekistan, Armenia, Russia, United States, France |
| Tumasian | Turkey, Russia, Georgia, United States, Canada |