Cognomen Borosa (Borosa 
) , worldwide, is a very rare last name. The surname Borosa is characteristic of Croatia, where it is a rare surname, Romania, and Canada, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Romania, Brazil, and Germany. Also, Borosa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Borosa | Germany, Indonesia, Romania, India, Brazil |