Cognomen ธีรเดชาสวัสดิ์ (ธีรเดชาสวัสดิ์ 
) , all over the world, is an extremely rare surname. The last name ธีรเดชาสวัสดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธีรเดชาสวัสดิ์ | Thailand |