Family name Nawacha (Nawacha 
) , around the globe, is a very rare cognomen. The family name Nawacha is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Nawacha is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nawacha | Thailand |
Pratthana, and Pratthanar