Surname Eufemia Rosario (Eufemia Rosario 
) , all over the world, is an extremely rare last name. The surname Eufemia Rosario is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname. Much more prevalently, Eufemia Rosario is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Eufemia Rosario | Peru, Argentina, Ecuador, Chile |