Surname Sairos (Sairos 
) , throughout the world, is a very rare last name. The surname Sairos is characteristic of Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Honduras, and Venezuela, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Nigeria, Nicaragua, and Thailand. More prevalently, Sairos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sairos | South Africa, Philippines, Nicaragua, India, Nigeria |