In the entire world, Mario Emerson (Mario Emerson 
) is a very rare boy's forename. The forename Mario Emerson is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare masculine name, and Peru. Much less frequently, Mario Emerson is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mario Emerson | Philippines, Peru, Chile, Ecuador, Costa Rica |