Last name Avanesyan (Аванесян 
, Avanesyan 
, Аванесьян ) , all around the world, is quite a common cognomen. The last name Avanesyan is habitual in Armenia, where it is quite a common surname, Russia, where it is quite a rare surname, and Belarus. Not in comparison with a country's population, the name is most common in Russia, Ukraine, and Armenia. Very seldom, Avanesyan is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Аванесян | Russia, Belarus, Kazakhstan, Ukraine, Armenia |
| Avanesyan | Azerbaijan, Russia, Armenia, United States, Poland |
| Аванесьян | Russia, Ukraine |
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anna sargsy avanesyan Armenian freedom fighter, participant in the First Nagorno-Karabakh War, AZ (b. 1935) |
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| qukas saturoviç avanesyan (b. 1887) |
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elina avanesyan Russian tennis player, RU |
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| mher avanesyan Armenian footballer (b. 1974) |
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| grayr avanesyan researcher |
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| sergey avanesyan physics/astronomy researcher |
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| r g avanesyan researcher |
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| alina avanesyan researcher (ORCID 0000-0002-4178-656X) |
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| hrachya avanesyan Armenian violinist, AM (b. 1986) |
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| artur avanesyan Russian association football player, RU (b. 1996) |
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| astghik avanesyan Armenian footballer, AM |
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| lusine avanesyan (b. 1997) |
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| julieta avanesyan AM |
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