Family name Guerrero Loarte (Guerrero Loarte 
) , across the world, is an extremely rare cognomen. The surname Guerrero Loarte is habitual in Latin America and the Caribbean, particularly Ecuador, where it is a very rare surname, and Peru, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Guerrero Loarte | Ecuador, Peru |
Arturo, and Olga Judith