Surname Thevathas (Thevathas 
) , in all the world, is a rare cognomen. The family name Thevathas is habitual in Sri Lanka, where it is quite a rare surname, Malaysia, where it is a rare surname, and Canada, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Sri Lanka, Malaysia, and the United Kingdom. Likewise, Thevathas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thevathas | Australia, Canada, United Kingdom, Sri Lanka, Malaysia |