Family name เตชวรัตถ์ธาดา (เตชวรัตถ์ธาดา 
) , all around the world, is a very rare cognomen. The cognomen เตชวรัตถ์ธาดา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เตชวรัตถ์ธาดา | Thailand |