Cognomen Tepoyan (Tepoyan 
, Тепоиан ) , all over the world, is a very rare family name. The last name Tepoyan is habitual in Armenia, where it is a rare surname, Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tepoyan | Armenia, Russia, United States |
| Тепоиан | Russia |
| liparit tepoyan chess player (b. 1962) |
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| vardan tepoyan Ph.D. Kazan State University and Yerevan State University 2013 |
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