Surname Rosylia (Rosylia 
) , in all the world, is an extremely rare last name. The surname Rosylia is habitual in Latin America and the Caribbean, particularly Mexico, where it is an extremely rare surname. Much more prevalently, Rosylia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosylia | Indonesia, Philippines, Mexico, India, Democratic Republic of the Congo |