Around the globe, Rosalia Sonia (Rosalia Sonia 
) is a very rare feminine forename. The given name Rosalia Sonia is characteristic of Latin America and the Caribbean, particularly Peru, where it is a very rare feminine name. Very seldom, Rosalia Sonia is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rosalia Sonia | Costa Rica, Chile, Peru, Ecuador |