Worldwide, Marianella Beatriz (Marianella Beatriz 
) is a very rare female forename. The forename Marianella Beatriz is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare female name, and Peru. Very seldom, Marianella Beatriz is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Marianella Beatriz | Peru, Ecuador, Chile, Spain |