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, Argentina, United States, Thailand, India |
| Thatsana | United States, South Africa, Thailand |
| Tatsana | United States, Thailand, South Africa, Nigeria, India |
| Tadsana | United States, Thailand |