Cognomen Saiyos (Saiyos 
) , in the world, is a very rare family name. The surname Saiyos is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Also, Saiyos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saiyos | Indonesia, United States, Thailand |