Cognomen อณุ (Nu 
, อณุ 
) , around the world, is a widespread last name. The last name อณุ is characteristic of Mongolia, where it is a prevalent surname, Myanmar, where it is a common surname, and Macao, where it is quite a common surname. Measured by absolute frequency, it is commonest in Myanmar, Mongolia, and China. Likewise, อณุ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nu | Myanmar, Nigeria, Mongolia, China, India |
| อณุ | Thailand |