Cognomen สุนา (Suna 
, สุนา 
) , throughout the world, is a widespread last name. The family name สุนา is habitual in India, where it is quite a common surname, Turkey, and Latvia, where it is quite a rare surname. In absolute terms, it is the most numerous in India, Turkey, and Thailand. Also, สุนา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suna | Turkey, Japan, South Korea, Nigeria, India |
| สุนา | Thailand |