Last name Oganesyan (Оганесян 
, Oganesyan 
, Оганесьян 
) , in the entire world, is a common cognomen. The last name Oganesyan is characteristic of Russia, where it is quite a common surname, Belarus, where it is quite a rare surname, and Armenia. In absolute terms, this name is the most popular in Russia, Ukraine, and the United States.
| VARIANT | COUNTRY |
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| Оганесян | Kazakhstan, Ukraine, Belarus, Russia, Armenia |
| Oganesyan | Spain, Bulgaria, United States, Russia, Armenia |
| Оганесьян | Kazakhstan, Ukraine, Belarus, Kyrgyzstan, Russia |
Hovhannissian, Hovhannissyan, Hovhannisyan, Oganesjan, Аганесян, Оганесиан, and Оганесйан
| gagik oganesyan researcher |
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| vaheh oganesyan researcher ORCID ID = 0000-0001-8910-9202 |
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| gor oganesyan Armenian astrophysicist, AM |
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| aida oganesyan researcher (ORCID 0000-0001-5404-5974) |
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| a n oganesyan researcher (ORCID 0000-0002-0826-919X) |
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| raisa oganesyan researcher |
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| marat melsovich oganesyan MD (b. 1970) |
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| oganes oganesyan researcher |
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| vardan oganesyan Ph.D. 2017 |
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| n s oganesyan researcher |
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| vasily oganesyan researcher |
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| artem oganesyan researcher |
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| arpine oganesyan researcher |
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| zhanna oganesyan |
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| eduard oganesyan Russian footballer, RU (b. 1990) |
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