Family name Francisco Estuardo (Francisco Estuardo 
) , in the entire world, is an extremely rare last name. The cognomen Francisco Estuardo is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Much more frequently, Francisco Estuardo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Francisco Estuardo | Peru, Chile, Ecuador |