Cognomen Хнкоян (Хнкоян 
, Khnkoyan 
) , all around the world, is a rare family name. The last name Хнкоян is characteristic of Armenia, where it is a rare surname, Belarus, and Russia. Also, Хнкоян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Хнкоян | Russia, Kazakhstan, Ukraine, Armenia, Belarus |
| Khnkoyan | Russia, Kazakhstan, United States, Armenia, Spain |