Last name วัฒยา (วัฒยา 
) , in the entire world, is a very rare cognomen. The cognomen วัฒยา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, วัฒยา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| วัฒยา | Thailand |