Family name ตุนา (Tuna 
, ตุนา 
) , around the world, is a common surname. The last name ตุนา is characteristic of Turkey, where it is quite a common surname, Kosovo, where it is quite a rare surname, and Namibia. Measured by absolute frequency, it is commonest in Turkey, Ethiopia, and Indonesia. Also, ตุนา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tuna | India, Ethiopia, Indonesia, Turkey, Germany |
| ตุนา | Thailand |