Surname Gajana (Gajana 
, Гаяна 
) , all around the world, is quite a rare family name. The surname Gajana is characteristic of Philippines, where it is a rare surname, South Africa, and India, where it is a very rare surname. More prevalently, Gajana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gajana | South Africa, Germany, India, Philippines |
| Гаяна | Belarus, Kazakhstan, Russia, Ukraine |