Around the world, Eric Guillermo (Eric Guillermo 
) is a very rare male forename. The forename Eric Guillermo is characteristic of Latin America and the Caribbean, particularly Costa Rica, where it is a rare boy's name, and Chile. Very seldom, Eric Guillermo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Eric Guillermo | Costa Rica, Germany, Peru, Ecuador, Chile |