Worldwide, Ngvyen (Ngvyen 
) is a very rare unisex first name. The forename Ngvyen is habitual in Eastern Asia, particularly China, where it is an extremely rare unisex name. Very seldom, Ngvyen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ngvyen | United Kingdom, Malaysia, United States, China |