Cognomen กาญจนสุทธิ์ (กาญจนสุทธิ์, Kanasuth 
) , in all the world, is an extremely rare surname. The surname กาญจนสุทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kanasuth | Thailand |