Surname Мокоян (Мокоян 
, Mokoian 
) , globally, is a rare cognomen. The family name Мокоян is characteristic of Estonia, where it is a rare surname, Georgia, and Romania. Measured by absolute frequency, it is commonest in Russia, Romania, and Georgia. Very seldom, Мокоян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Мокоян | Kyrgyzstan, Armenia, Russia, Ukraine |
| Mokoian | Estonia, Romania, Georgia |