Across the world, Leon Guillermo (Leon Guillermo 
) is a very rare boy's given name. The first name Leon Guillermo is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare male name. Also, Leon Guillermo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Leon Guillermo | Colombia, Mexico, Ecuador, Chile, Costa Rica |