Last name รัฐฐา (Rattha 
, รัฐฐา ) , around the globe, is a rare cognomen. The cognomen รัฐฐา is habitual in Thailand, where it is a rare surname, and India, where it is an extremely rare surname. More prevalently, รัฐฐา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rattha | Cambodia, United States, Thailand, Myanmar, India |
| รัฐฐา | Thailand |