Cognomen Riveroo (Riveroo 
) , worldwide, is a very rare last name. The family name Riveroo is habitual in Latin America and the Caribbean, particularly Uruguay, where it is a rare surname, Argentina, where it is a very rare surname, and Venezuela, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Riveroo | Argentina, United States, Mexico, Venezuela, Uruguay |