Worldwide, Mariella Janeth (Mariella Janeth 
) is a very rare girly given name. The given name Mariella Janeth is habitual in Latin America and the Caribbean, particularly Peru, where it is a very rare feminine name. Very seldom, Mariella Janeth is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mariella Janeth | Peru, Ecuador, Chile |