Surname Ilse Rosario (Ilse Rosario 
) , all over the world, is an extremely rare family name. The family name Ilse Rosario is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More frequently, Ilse Rosario is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ilse Rosario | Chile, Peru |