Worldwide, Monserrat Antonia (Monserrat Antonia 
) is a very rare girly forename. The forename Monserrat Antonia is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare girly name. Much less frequently, Monserrat Antonia is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Monserrat Antonia | Ecuador, Chile, Spain |