Family name Guiyo (Guiyo 
) , all over the world, is a very rare last name. The family name Guiyo is habitual in Philippines, where it is an extremely rare surname, Mexico, and India. Much less frequently, Guiyo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guiyo | Philippines, Argentina, United Kingdom, India, Mexico |