Surname Suwannakha (Suwannakha 
) , in all the world, is a very rare family name. The surname Suwannakha is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Suwannakha | Thailand |
Renu, Chutima, Khomsan, Piyarat, Phanouch, Sarinrat, Nattayaphon, and Natthayaphon