Surname Santiaago (Santiaago 
) , in the entire world, is a very rare family name. The family name Santiaago is characteristic of Spain, where it is a very rare surname, Philippines, where it is an extremely rare surname, and Mexico. Also, Santiaago is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Santiaago | Philippines, Mexico, Spain, United States, Colombia |