Cognomen Thongbang (Thongbang 
) , worldwide, is a rare surname. The cognomen Thongbang is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. More prevalently, Thongbang is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thongbang | United States, India, Laos, Thailand |