Surname Mamajanyan (Mamajanyan 
) , all over the world, is a very rare family name. The cognomen Mamajanyan is habitual in Armenia, where it is quite a rare surname, Greece, where it is a rare surname, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mamajanyan | Germany, United States, Greece, Armenia |
| ashot mamajanyan Armenian artist, GE (b. 1908) |
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