Surname Doan-Chau (Doan-Chau 
) , in the entire world, is an extremely rare family name. Much more frequently, Doan-Chau is the forename as well as the last name. Parts of the name also exists independently as a last name Doan, and a last name Chau.
| VARIANT | COUNTRY |
|---|---|
| Doan-Chau | United States |