Last name Glenn Guillermo (Glenn Guillermo 
) , in all the world, is an extremely rare family name. The surname Glenn Guillermo is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More frequently, Glenn Guillermo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Glenn Guillermo | Peru, Philippines, Chile, Costa Rica |