Last name Stephanie Antonietta (Stephanie Antonietta 
) , around the world, is an extremely rare family name. The last name Stephanie Antonietta is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More frequently, Stephanie Antonietta is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Stephanie Antonietta | Chile, Spain |