All around the world, Monica Justina (Monica Justina 
) is a very rare female forename. The first name Monica Justina is characteristic of Latin America and the Caribbean, particularly Peru, where it is a very rare girly name, and Chile. Much less frequently, Monica Justina is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Monica Justina | Peru, Philippines, Chile, Ecuador |