Family name Riosi (Riosi 
) , all over the world, is an extremely rare cognomen. The family name Riosi is characteristic of Canada, where it is an extremely rare surname, Mexico, and the United States. In absolute terms, it is commonest in India, Mexico, and Canada. Also, Riosi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riosi | India, Canada, United States, Mexico |