Family name Reosa (Reosa 
) , all over the world, is a very rare last name. The surname Reosa is habitual in Philippines, where it is a very rare surname, Malaysia, and Brazil, where it is an extremely rare surname. Much less frequently, Reosa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Reosa | Brazil, Malaysia, United States, Philippines |