Globally, Gilberto Alexander (Gilberto Alexander 
) is a very rare masculine given name. The forename Gilberto Alexander is habitual in Costa Rica, where it is a rare masculine name, Libya, and Peru, where it is a very rare boy's name. Much less frequently, Gilberto Alexander is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gilberto Alexander | Costa Rica, Libya, Spain, Ecuador, Peru |