Family name Ngyuễn (Ngyuễn 
) , across the world, is a very rare surname. The surname Ngyuễn is habitual in South-eastern Asia, particularly Vietnam, where it is a very rare surname. Also, Ngyuễn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ngyuễn | Vietnam |