Family name Isolda Antonia (Isolda Antonia 
) , across the world, is an extremely rare cognomen. The last name Isolda Antonia is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Likewise, Isolda Antonia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Isolda Antonia | Chile |