Surname ธาราวรรษ (ธาราวรรษ 
) , globally, is a very rare last name. The surname ธาราวรรษ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ธาราวรรษ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ธาราวรรษ | Thailand |