Surname Olavarria Rivero (Olavarria Rivero 
) , throughout the world, is an extremely rare family name. The family name Olavarria Rivero is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a very rare surname, and Chile, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Olavarria Rivero | Ecuador, Chile |