Last name Eudacia (Eudacia 
) , in the entire world, is a very rare family name. The family name Eudacia is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Honduras, and Mexico, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Latin America and the Caribbean, particularly Mexico, Venezuela, and Peru. More prevalently, Eudacia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Eudacia | Peru, Nicaragua, Philippines, Mexico, Brazil |