Worldwide, Mario Justino (Mario Justino 
) is a very rare masculine given name. The forename Mario Justino is characteristic of Latin America and the Caribbean, particularly Peru, where it is a very rare masculine name. Much less frequently, Mario Justino is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mario Justino | Philippines, Mexico, Chile, Ecuador, Peru |