Surname เธียรอัจฉริยะ (เธียรอัจฉริยะ 
, Thienachariya 
) , globally, is a very rare last name. The last name เธียรอัจฉริยะ is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| เธียรอัจฉริยะ | Thailand |
| Thienachariya | United States, Thailand |