Surname Arnak (Arnak 
, Арнак 
) , worldwide, is a rare last name. The cognomen Arnak is habitual in Western Asia, particularly Armenia, where it is quite a rare surname, Turkey, where it is a rare surname, and Georgia, where it is a very rare surname. Measured by absolute frequency, it is commonest in Turkey, Armenia, and Malaysia. Very seldom, Arnak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arnak | Armenia, Turkey, Malaysia, Poland, India |
| Арнак | Ukraine, Russia, Armenia |