Last name Guillermo Fabricio (Guillermo Fabricio 
) , around the world, is an extremely rare surname. The surname Guillermo Fabricio is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Predominantly, Guillermo Fabricio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guillermo Fabricio | Argentina, Chile, Peru, Ecuador, Costa Rica |