Cognomen Díaz Vargas (Díaz Vargas 
) , all around the world, is a very rare surname. The family name Díaz Vargas is habitual in Latin America and the Caribbean, particularly Colombia, where it is a very rare surname, Costa Rica, and Chile. In absolute terms, the name is most common in Colombia, Spain, and Peru.
| VARIANT | COUNTRY |
|---|---|
| Díaz Vargas | Mexico, Spain, Peru, Chile, Colombia |