In all the world, Mariela Andrea (Mariela Andrea 
) is quite a rare feminine first name. The first name Mariela Andrea is characteristic of Latin America and the Caribbean, particularly Chile, where it is quite a common feminine name, Costa Rica, where it is a rare female name, and Peru. Measured by absolute frequency, it is the most numerous in Latin America and the Caribbean, particularly Chile, Peru, and Argentina. Very seldom, Mariela Andrea is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mariela Andrea | Argentina, Peru, Ecuador, Chile, Costa Rica |