Worldwide, Marnny (Marnny 
) is a very rare unisex first name. The forename Marnny is characteristic of South-eastern Asia, particularly Philippines, where it is a very rare unisex name. Much less frequently, Marnny is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Marnny | Brazil, Philippines, United States, Peru, Venezuela |