Surname Carolina Antonia (Carolina Antonia 
) , globally, is a rare family name. The last name Carolina Antonia is habitual in Chile, where it is a rare surname, Spain, where it is an extremely rare surname, and Argentina. More prevalently, Carolina Antonia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Carolina Antonia | Peru, Spain, Chile, Ecuador, Costa Rica |