Family name Nauyen (Nauyen 
) , worldwide, is a very rare surname. The last name Nauyen is habitual in Vietnam, where it is a very rare surname, Malaysia, and the United States, where it is an extremely rare surname. More frequently, Nauyen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nauyen | United Kingdom, United States, Vietnam, Malaysia |