Surname สย (Saya 
, สย) , in the entire world, is a common family name. The cognomen สย is characteristic of the Democratic Republic of the Congo, where it is quite a common surname, Gabon, where it is quite a rare surname, and Uruguay. Not in comparison with a country's population, the name is most common in the Democratic Republic of the Congo, India, and Indonesia. Likewise, สย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saya | Myanmar, Democratic Republic of the Congo, Iraq, India, Indonesia |