Cognomen Rosario Sonia (Rosario Sonia 
) , throughout the world, is an extremely rare surname. The cognomen Rosario Sonia is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Much more frequently, Rosario Sonia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosario Sonia | Peru, Ecuador, Philippines, Spain, Chile |