Surname รัตนตยาธิคุณ (รัตนตยาธิคุณ 
, Ratnuttayathikhun , Ratanatayatikhun ) , across the world, is a very rare last name. The surname รัตนตยาธิคุณ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| รัตนตยาธิคุณ, Ratnuttayathikhun, Ratanatayatikhun | Thailand |