Cognomen ญาต (Yat 
, ญาต 
) , all around the world, is a common last name. The surname ญาต is habitual in Guatemala, where it is quite a common surname, Hong Kong, where it is quite a rare surname, and Malaysia. Not in comparison with a country's population, the name is most common in Guatemala, Indonesia, and Malaysia. Very seldom, ญาต is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yat | Malaysia, Taiwan, China, Guatemala, Indonesia |
| ญาต | Thailand |