Surname ทัศนา (ทัศนา 
, Tassana 
, Thatsana 
, among others...) , in all the world, is quite a rare family name. The last name ทัศนา is characteristic of Thailand, where it is quite a rare surname, the United States, where it is an extremely rare surname, and India. More prevalently, ทัศนา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ทัศนา | Thailand |
| Tassana | Brazil, Thailand, Argentina, India, United States |
| Thatsana | South Africa, United States, Thailand |
| Tatsana | Thailand, India, South Africa, Nigeria, United States |
| Tadsana | United States, Thailand |