Cognomen Mariela Luz (Mariela Luz 
) , all over the world, is a very rare surname. The surname Mariela Luz is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Mariela Luz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mariela Luz | Philippines, Peru, Bolivia, Ecuador, Chile |