Around the globe, Guillermo Alamiro (Guillermo Alamiro 
) is a very rare male forename. The forename Guillermo Alamiro is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare male name. Much less frequently, Guillermo Alamiro is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Guillermo Alamiro | Peru, Chile |