Surname Tadevosyan (Тадевосян 
, Tadevosyan 
) , around the globe, is quite a common cognomen. The surname Tadevosyan is characteristic of Armenia, where it is quite a common surname, Russia, where it is quite a rare surname, and Bulgaria, where it is a rare surname. In absolute terms, the name is most common in Russia, Armenia, and Ukraine. Also, Tadevosyan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Тадевосян | Ukraine, Kazakhstan, Armenia, Russia, Belarus |
| Tadevosyan | United States, Czechia, Armenia, Russia, Bulgaria |
Тадевосиан, and Тадевосьян
| vramshapouh tadevosyan lawyer (1900-1979), AZ (b. 1900) |
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| gourgen tadevosyan Armenian chemist (1906-1973), GE (b. 1906) |
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| ruben tadevosyan Armenian pedagogue (b. 1918) |
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| meri tadevosyan researcher (ORCID 0000-0002-8179-2542) |
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| natalya s tadevosyan researcher (ORCID 0000-0002-4753-489X) |
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| artashes e tadevosyan researcher (ORCID 0000-0001-7737-2978) |
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| armine tadevosyan Armenian footballer, AM |
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