Cognomen Riyato (Riyato 
) , in the world, is a very rare family name. The surname Riyato is habitual in Indonesia, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and India. Much less frequently, Riyato is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riyato | India, Indonesia, Malaysia |