Worldwide, Luiz Antonio (Luiz Antonio 
) is quite a rare masculine given name. The first name Luiz Antonio is habitual in Brazil, where it is a rare male name, Portugal, and Peru, where it is a very rare boy's name. Not in comparison with a country's population, this name is the most popular in Brazil, Colombia, and Portugal.
| VARIANT | COUNTRY |
|---|---|
| Luiz Antonio | Peru, Colombia, Portugal, Spain, Brazil |
Luis Antonio, and Luiz Antônio
| luiz antonio gomes senna Brazilian linguist, BR (b. 1960) |
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| luiz antonio pereira de aguiar Brazilian politician, BR (b. 1964) |
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| luiz antonio rivetti Brazilian cardiologist, BR |
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Melo, Machado, Moreira, Almeida, Andrade, Antonio, Cardoso, Barbosa, Batista, Pereira, Ribeiro, Tavares, Freitas, Monteiro, Carvalho, Teixeira, Ferreira, Oliveira, Rodrigues, Goncalves, Fernandes, Dos Santos, Marques, Martins, Vieira, Junior, Rosa, Dias, Lima, Silva, Souza, Alves, Costa, Pinto, Ramos, Rocha, Gonçalves, Gomes, Lopes, Nunes, Mendes, Santos, Soares, Araujo, Campos, Correa, Borges, Garcia, Leite, and Nascimento