Last name Casilda Antonieta (Casilda Antonieta 
) , throughout the world, is an extremely rare surname. The family name Casilda Antonieta is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More prevalently, Casilda Antonieta is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Casilda Antonieta | Ecuador, Chile, Peru |