Around the world, Erna Margarita (Erna Margarita 
) is a very rare female forename. The first name Erna Margarita is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare girly name. Much less frequently, Erna Margarita is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Erna Margarita | Chile, Peru |