Throughout the world, มาเรียนา (Mariana 
, Marianah 
, มาเรียนา 
) is a widespread feminine first name. The forename มาเรียนา is characteristic of Romania, where it is a common principally feminine, but very seldom masculine name, Argentina, where it is a common girly name, and Uruguay (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Latin America and the Caribbean, particularly Brazil, Argentina, and Mexico. Very seldom, มาเรียนา is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mariana | Romania, Argentina, Brazil, Mexico, Indonesia |
| Marianah | South Africa, Brazil, United States, Mexico, Indonesia |
| มาเรียนา | Thailand |
มาเรียนา is also a name for the fictitious and mythical characters: Mariana , the operatic character in the opera Das Liebesverbot by Richard Wagner and Mariana Pineda , the operatic character in the opera Mariana Pineda.