Surname Guillermo Edwin (Guillermo Edwin 
) , in the world, is an extremely rare cognomen. The last name Guillermo Edwin is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More frequently, Guillermo Edwin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Guillermo Edwin | Mexico, Ecuador, Chile, Peru, Costa Rica |