Surname Guillermo Israel (Guillermo Israel 
) , in the entire world, is a very rare last name. The surname Guillermo Israel is characteristic of Chile, where it is a rare surname, and Spain, where it is a very rare surname. More prevalently, Guillermo Israel is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guillermo Israel | Spain, Mexico, Chile, Ecuador, Peru |