Across the world, เทียนฤทัย (เทียนฤทัย 
) is a very rare girly given name. The forename เทียนฤทัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare girly name. Very seldom, เทียนฤทัย is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| เทียนฤทัย | Thailand |