Last name ვაჟა (Vaja 
, Vazha 
, ვაჟა ) , globally, is a common cognomen. The surname ვაჟა is characteristic of Georgia, where it is a common surname, India, where it is quite a rare surname, and Albania. Measured by absolute frequency, it is the most numerous in India, Georgia, and Kenya. Also, ვაჟა is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vaja | Romania, United Kingdom, Georgia, Kenya, India |
| Vazha | Turkey, Spain, Georgia, United States, India |
| ვაჟა | Georgia |