Family name Rostomyan (Ростомян 
, Rostomyan 
, Ростомиан ) , in the world, is a rare cognomen. The last name Rostomyan is habitual in Armenia, where it is quite a rare surname, Russia, where it is a rare surname, and Ukraine. Not in comparison with a country's population, it is commonest in Russia, Armenia, and the United States. Likewise, Rostomyan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ростомян | Armenia, Russia, Ukraine |
| Rostomyan | Germany, Armenia, Russia, United States, Greece |
| Ростомиан | Russia |
| liliya rostomyan researcher |
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| armine armand rostomyan particle physicist |
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| mikayel rostomyan chess player |
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