Cognomen ถาวรเศรษฐ (ถาวรเศรษฐ 
, Thavaonset , Thavoanset) , globally, is a very rare family name. The last name ถาวรเศรษฐ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ถาวรเศรษฐ, Thavornset, Thavaonset | Thailand |
| ธิดา ถาวรเศรษฐ Thai politician, TH (b. 1944) |
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