Family name เตชะธัญญกุล (เตชะธัญญกุล 
) , throughout the world, is a very rare last name. The surname เตชะธัญญกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| เตชะธัญญกุล | Thailand |