Worldwide, Mariana Denisa (Mariana Denisa 
) is a very rare feminine given name. The first name Mariana Denisa is habitual in Eastern Europe, particularly Romania, where it is a rare feminine name. Very seldom, Mariana Denisa is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mariana Denisa | Romania, Chile, Spain |