In all the world, Mariella Cecilia (Mariella Cecilia 
) is a very rare feminine first name. The forename Mariella Cecilia is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare female name, and Peru. Very seldom, Mariella Cecilia is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mariella Cecilia | Chile, Peru, Costa Rica, Ecuador |