All over the world, Onildo (Onildo 
) is quite a rare masculine forename. The first name Onildo is characteristic of Brazil, where it is quite a rare masculine name, Argentina, where it is a rare male name, and Italy, where it is a very rare boy's name.
| VARIANT | COUNTRY |
|---|---|
| Onildo | Peru, France, Argentina, Italy, Brazil |
| onildo magalhães costa person identified in the Museu da Pessoa collection, BR (b. 1925) |
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| onildo almeida BR (b. 1928) |
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| onildo josé tarter politician from Brazil, BR (b. 1958) |
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| onildo francisco dos santos politician from Brazil, BR (b. 1964) |
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| onildo j marini-filho researcher |
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| onildo mouzinho filho Brazilian association football player, BR |
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Melo, Barros, Junior, Vieira, Farias, Martins, Machado, Santana, Almeida, Andrade, Barbosa, Batista, Pereira, Ribeiro, Freitas, Silveira, Carvalho, Ferreira, Oliveira, Rodrigues, Guimaraes, Goncalves, Campos, Castro, Araujo, Soares, Cruz, Rosa, Reis, Dias, Lima, Neto, Matos, Silva, Sousa, Souza, Fernandes, Alves, Brito, Rocha, Gomes, Lemos, Lopes, Jesus, Nunes, Filho, Morais, Santos, Costa, and Nascimento