Cognomen Goulnaz (Гульназ 
, Гулназ 
, Goulnaz 
) , in the world, is quite a common last name. The cognomen Goulnaz is characteristic of Kyrgyzstan, where it is quite a common surname, Russia, where it is a rare surname, and Uzbekistan. More frequently, Goulnaz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Гульназ | Kazakhstan, Uzbekistan, Russia, Kyrgyzstan, Azerbaijan |
| Гулназ | Kazakhstan, Russia, Kyrgyzstan, Azerbaijan, Ukraine |
| Goulnaz | United States, Canada |