Surname Thanh-Chi (Thanh-Chi 
) , all over the world, is an extremely rare last name. Much more prevalently, Thanh-Chi is the forename as well as the last name. Parts of the name also exists independently as a first name Thanh, and a last name Chi.
| VARIANT | COUNTRY |
|---|---|
| Thanh-Chi | United States, France |
Lu, Pham, Dang, Nguyen, and Cong-Huyen