Family name Vargas Santiago (Vargas Santiago 
) , worldwide, is a rare surname. The last name Vargas Santiago is habitual in Spain, where it is a rare surname, Colombia, where it is a very rare surname, and Peru, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Spain, Colombia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Vargas Santiago | Peru, United States, Mexico, Colombia, Spain |