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Cognomen Rosalby (Rosalby
) , around the world, is a very rare last name. The surname Rosalby is habitual in Latin America and the Caribbean, particularly Venezuela, where it is a very rare surname, Nicaragua, and Mexico, where it is an extremely rare surname. Also, Rosalby is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rosalby | Colombia, Mexico, United States, Nicaragua, Venezuela |