Surname ยาต (Yat 
, ยาต 
) , in all the world, is a common cognomen. The surname ยาต is characteristic of Guatemala, where it is quite a common surname, Hong Kong, where it is quite a rare surname, and Malaysia. Measured by absolute frequency, it is commonest in Guatemala, Indonesia, and Malaysia. Much less frequently, ยาต is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yat | Taiwan, Indonesia, Guatemala, Malaysia, China |
| ยาต | Thailand |