Family name ท่อง (Thong 
, ท่อง) , all over the world, is a common surname. The surname ท่อง is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a common surname, Singapore, and Laos. In absolute terms, it most frequently occurs in South-eastern Asia, particularly Malaysia, Vietnam, and Indonesia. Also, ท่อง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thong | Indonesia, Vietnam, Laos, Malaysia, Singapore |