Cognomen Thyas (Thyas 
) , around the globe, is a rare surname. The cognomen Thyas is habitual in Malaysia, where it is a very rare surname, Indonesia, and India, where it is an extremely rare surname. Also, Thyas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thyas | Indonesia, South Africa, Malaysia, United States, India |