Surname Терян (Терян 
, Terian 
, Teryan 
) , around the globe, is a rare family name. The surname Терян is habitual in Armenia, where it is quite a rare surname, Hungary, where it is a rare surname, and Russia. Measured by absolute frequency, it is the most numerous in Russia, the United States, and Indonesia. Also, Терян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Терян | Ukraine, Armenia, Kazakhstan, Russia |
| Terian | Indonesia, India, Germany, Malaysia, United States |
| Teryan | Russia, India, Turkey, United States, Armenia |
| Terjan | India, France, Germany, United States, Hungary |