Last name Хнкоиан (Хнкоиан 
, Xnkoian 
) , all over the world, is a rare family name. The cognomen Хнкоиан is characteristic of Georgia, where it is quite a rare surname, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Хнкоиан | Russia |
| Xnkoian | Georgia |