Last name Ter-Mkrtchyan (Ter-Mkrtchyan 
) , in all the world, is a very rare family name. The cognomen Ter-Mkrtchyan is habitual in Armenia, where it is a rare surname, Russia, where it is an extremely rare surname, and the United States. Parts of the name also exists independently as a last name Ter, and a last name Mkrtchyan.
| VARIANT | COUNTRY |
|---|---|
| Ter-Mkrtchyan | Armenia, Russia, United States |
| karapet ter-mkrtchyan Armenian bishop, AZ (b. 1866) |
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| alfred ter-mkrtchyan Armenian Greco-Roman wrestler for the Soviet Union and later Germany, DE (b. 1971) |
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