Surname อุทยา (Utaya 
, Uttaya , อุทยา ) , around the globe, is quite a rare family name. The last name อุทยา is habitual in Thailand, where it is a rare surname, India, and Indonesia, where it is a very rare surname. Predominantly, อุทยา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Utaya | Thailand, United States, India, Indonesia, Malaysia |
| Uttaya | Thailand, India |
| อุทยา | Thailand |
| Untaya | United States, Thailand, India |