Cognomen เตชากิจสิทธา (เตชากิจสิทธา 
) , in all the world, is an extremely rare family name. The surname เตชากิจสิทธา is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| เตชากิจสิทธา | Thailand |