Cognomen ទ័យ (ទ័យ 
) , all over the world, is a very rare surname. The last name ទ័យ is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. Also, ទ័យ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ទ័យ | Cambodia |