Surname Rosario Antonia (Rosario Antonia 
) , in all the world, is a very rare family name. The last name Rosario Antonia is characteristic of Chile, where it is a rare surname, and Spain, where it is a very rare surname. More frequently, Rosario Antonia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosario Antonia | Chile, Spain, Peru, Bolivia, Ecuador |