Cognomen Рузанна (Рузанна 
, Ruzanna 
, Rouzanna 
) , worldwide, is quite a common last name. The last name Рузанна is habitual in Armenia, where it is a common surname, Georgia, where it is quite a common surname, and Greece, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Armenia, Georgia, and Russia. More prevalently, Рузанна is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Рузанна | Russia, Kazakhstan, Armenia, Ukraine, Belarus |
| Ruzanna | Georgia, United States, Russia, Armenia, Malaysia |
| Rouzanna | Greece, United States, France, Armenia, Canada |