Cognomen ทูญ (Thun 
, ทูญ ) , in the entire world, is a common family name. The surname ทูญ is characteristic of Myanmar, where it is quite a common surname, Norway, where it is quite a rare surname, and Sweden. Measured by absolute frequency, this name is the most popular in Myanmar, Germany, and Malaysia. Likewise, ทูญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thun | Germany, Malaysia, Thailand, United States, Myanmar |
| ทูญ | Thailand |