Surname Nnau (Nnau 
, น่าน) , in the entire world, is a very rare family name. The surname Nnau is characteristic of Myanmar, where it is a rare surname, and South Africa, where it is a very rare surname. Very seldom, Nnau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nnau | India, Myanmar, South Africa |