Family name ธีรวัสส์สกุล (ธีรวัสส์สกุล 
) , worldwide, is an extremely rare surname. The surname ธีรวัสส์สกุล is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธีรวัสส์สกุล | Thailand |