Family name ທອງສ (ທອງສ 
) , all around the world, is a rare cognomen. The surname ທອງສ is characteristic of South-eastern Asia, particularly Laos, where it is quite a rare surname. More prevalently, ທອງສ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ທອງສ | Laos |