Surname قرناس (قرناس 
, Kurnaz 
) , in all the world, is a common cognomen. The cognomen قرناس is habitual in Turkey, where it is quite a common surname, North Macedonia, where it is quite a rare surname, and Cyprus. Measured by absolute frequency, it is the most numerous in Turkey, Germany, and Iran. Very seldom, قرناس is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| قرناس | Jordan, Kuwait, Iran, Saudi Arabia, Yemen |
| Kurnaz | Belgium, Germany, Turkey, Austria, France |