Cognomen Vang-Thao (Vang-Thao 
) , in the entire world, is an extremely rare family name. The last name Vang-Thao is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Vang, and a first name Thao.
| VARIANT | COUNTRY |
|---|---|
| Vang-Thao | United States |