Surname เถ่ง (Theng 
, เถ่ง) , worldwide, is a common last name. The cognomen เถ่ง is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a common surname, Singapore, where it is quite a rare surname, and Laos. Not in comparison with a country's population, it is the most numerous in Malaysia, India, and Indonesia. Much less frequently, เถ่ง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Theng | Philippines, Singapore, India, Indonesia, Malaysia |