Family name Thass (Thass 
) , in the entire world, is a very rare surname. The family name Thass is characteristic of Saudi Arabia, where it is a rare surname, Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. Likewise, Thass is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thass | Saudi Arabia, Malaysia, India, United States, Thailand |
| iyothee thass Indian activist, IN (b. 1845) |
|