In all the world, Oana-Mariana (Oana-Mariana 
) is an extremely rare girly forename. Parts of the name also exists independently as a first name Oana, and a first name Mariana.
| VARIANT | COUNTRY |
|---|---|
| Oana-Mariana | Denmark |
| oana-mariana cristea RO |
|
Stefanoae, and Taraboanta