Surname Castaño Ossa (Castaño Ossa 
) , around the globe, is a very rare cognomen. The surname Castaño Ossa is characteristic of Latin America and the Caribbean, particularly Colombia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Castaño Ossa | Colombia |
Jeferson, Stephanie, and Blanca Emilia