Family name เทียมเดช (เทียมเดช 
) , around the globe, is a very rare cognomen. The family name เทียมเดช is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, เทียมเดช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เทียมเดช | Thailand |