Family name รัตนพลาดิศัย (รัตนพลาดิศัย 
) , across the world, is an extremely rare cognomen. The last name รัตนพลาดิศัย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| รัตนพลาดิศัย | Thailand |