Surname ทุ่งกว้าง (ทุ่งกว้าง, Thungkwang 
) , worldwide, is an extremely rare last name. The family name ทุ่งกว้าง is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Thungkwang | Thailand |