Cognomen นัตถ์ (Nat 
, นัตถ์ ) , all around the world, is a common surname. The last name นัตถ์ is habitual in Mauritius, where it is quite a rare surname, Oman, and Ghana. Not in comparison with a country's population, it is commonest in India, Myanmar, and Ghana. Likewise, นัตถ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nat | Australia, Ghana, Thailand, India, Myanmar |
| นัตถ์ | Thailand |