Family name Guidalty (Guidalty 
) , all around the world, is an extremely rare last name. The last name Guidalty is characteristic of Latin America and the Caribbean, particularly Mexico, where it is an extremely rare surname. Much more prevalently, Guidalty is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guidalty | Democratic Republic of the Congo, Costa Rica, Mexico |