Surname เตชะยา (Terachaya 
, Techaya , เตชะยา ) , all over the world, is a very rare family name. The last name เตชะยา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, เตชะยา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Terachaya, เตชะยา, Techaya | Thailand |