Last name Kunthaya (Kunthaya 
) , all over the world, is a very rare family name. The last name Kunthaya is characteristic of Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Much less frequently, Kunthaya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kunthaya | Thailand, India |