Cognomen Gilberto Alexander (Gilberto Alexander 
) , globally, is a very rare last name. The family name Gilberto Alexander is habitual in Spain, where it is a very rare surname, and Chile, where it is an extremely rare surname. More frequently, Gilberto Alexander is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gilberto Alexander | Costa Rica, Libya, Spain, Ecuador, Peru |