Family name Montalvo Arroyo (Montalvo Arroyo 
) , around the world, is a very rare cognomen. The cognomen Montalvo Arroyo is characteristic of Ecuador, where it is a very rare surname, Spain, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Montalvo Arroyo | Spain, United States, Ecuador |