Family name Belgica Rosario (Belgica Rosario 
) , worldwide, is an extremely rare surname. The cognomen Belgica Rosario is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. Much more frequently, Belgica Rosario is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Belgica Rosario | Peru, Spain, Ecuador, Chile |