Around the globe, Mario Antonio (Mario Antonio 
) is a common male forename. The forename Mario Antonio is characteristic of Latin America and the Caribbean, particularly Chile, where it is quite a common masculine name, Costa Rica, and Paraguay, where it is quite a rare masculine name. Measured by absolute frequency, the name is most common in Latin America and the Caribbean, particularly Chile, Peru, and Costa Rica. Very seldom, Mario Antonio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mario Antonio | Chile, Peru, Costa Rica, Cuba, Ecuador |
| mario antonio maffei Roman Catholic bishop (b. 1691) |
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| mario antonio cargnello Argentinian archbishop, AR (b. 1952) |
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Soto, Flores, Morales, Miranda, Sanchez, Alvarez, Ramirez, Jimenez, Herrera, Vasquez, Vergara, Fuentes, Zuñiga, Martinez, Castillo, Gonzalez, Espinoza, Sepulveda, Contreras, Rodriguez, Gutierrez, Hernandez, Vargas, Nuñez, Torres, Garcia, Diaz, Vera, Vega, Silva, Araya, Arias, Bravo, Perez, Ramos, Rojas, Fernandez, Reyes, Lopez, Tapia, Moreno, Molina, Muñoz, Castro, Campos, Cortes, Romero, Rivera, Gomez, and Valenzuela