Cognomen ธีรเดชวิศิษฐ์ (ธีรเดชวิศิษฐ์ 
) , worldwide, is an extremely rare last name. The last name ธีรเดชวิศิษฐ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธีรเดชวิศิษฐ์ | Thailand |