Cognomen Luiz Ernesto (Luiz Ernesto 
) , in all the world, is an extremely rare family name. The surname Luiz Ernesto is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. Predominantly, Luiz Ernesto is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Luiz Ernesto | Chile, Brazil, Peru |
Rosa, Souza, Amorim, Vianna, Carrasco, Ferragutt, Bergamaski, Dos Santos, De Queiroz Costa, and Quintero Garay