Surname เธียรวรรณ (เธียรวรรณ 
) , throughout the world, is a rare cognomen. The family name เธียรวรรณ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, เธียรวรรณ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เธียรวรรณ | Thailand |