Surname ณัฐทยา (Natthaya 
, ณัฐทยา , Natadtaya) , in the world, is a very rare family name. The cognomen ณัฐทยา is characteristic of South-eastern Asia, particularly Malaysia, where it is a very rare surname, and Thailand. Predominantly, ณัฐทยา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Natthaya | Laos, Malaysia, Singapore, Thailand, India |
| ณัฐทยา | Thailand |