Cognomen สุเมธรัฐ (สุเมธรัฐ 
) , all around the world, is an extremely rare last name. The surname สุเมธรัฐ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, สุเมธรัฐ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุเมธรัฐ | Thailand |