Around the globe, Marcial Humberto (Marcial Humberto 
) is a rare masculine first name. The forename Marcial Humberto is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare male name, and Peru. Much less frequently, Marcial Humberto is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Marcial Humberto | Peru, Ecuador, Chile, Costa Rica |