Surname ท้ง (Thong 
, ท้ง) , around the globe, is a common cognomen. The cognomen ท้ง is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a common surname, Singapore, and Laos. Not in comparison with a country's population, it is commonest in South-eastern Asia, particularly Malaysia, Vietnam, and Indonesia. Likewise, ท้ง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thong | Indonesia, Vietnam, Laos, Malaysia, Singapore |