Surname ทวีถาวรสวัสดิ์ (ทวีถาวรสวัสดิ์ 
, Taweetavornsawas, Thaveetavornsawat ) , all around the world, is a very rare family name. The last name ทวีถาวรสวัสดิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| ทวีถาวรสวัสดิ์, Taweethavonsavat, Thaveetavornsawat | Thailand |
Taweethavonsawat, Thaveethavornsawat, Thaweethawonsawat, Thaweethawornsawad, Thaweethawornsawat, Thaweethawornsawatd, and Thaweethawornswad