Cognomen ហ្យាយ (ហ្យាយ 
) , globally, is a very rare family name. The last name ហ្យាយ is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. Likewise, ហ្យាយ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ហ្យាយ | Cambodia |