Across the world, Sinval (Sinval 
) is a common masculine given name. The first name Sinval is characteristic of Brazil, where it is quite a rare masculine name, and India, where it is an extremely rare epicene name. Much less frequently, Sinval is the last name as well as the forename.
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| Sinval | China, Portugal, India, Brazil, United States |
| sinval odorico de moura Brazilian politician, BR (b. 1828) |
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sinval guazzelli Brazilian politician, BR (b. 1930) |
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| sinval saldanha Brazilian lawyer, BR (b. 1886) |
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sinval malheiros Brazilian politician, BR (b. 1951) |
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| sinval boaventura Brazilian politician, BR (b. 1924) |
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| sinval de oliveira bambirra Brazilian politician, BR (b. 1933) |
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| sinval malheiros pinto junior politician from Brazil, BR (b. 1951) |
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| sinval ferreira da silva Brazilian association football player, BR (b. 1967) |
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| sinval pinto brandão filho researcher (ORCID 0000-0003-3768-2810) |
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| sinval a rodrigues-junior researcher |
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| sinval martins Brazilian association football player, BR |
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| sinval avelino dos santos researcher |
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| sinval de souza oliveira Person identified in the Museu da Pessoa collection (196916), BR (b. 1986) |
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Melo, Junior, Vieira, Martins, Machado, Moreira, Santana, Almeida, Andrade, Cardoso, Barbosa, Batista, Pereira, Ribeiro, Freitas, Fonseca, Medeiros, Carvalho, Teixeira, Ferreira, Oliveira, Rodrigues, Borges, Amorim, Araujo, Soares, Cruz, Rosa, Reis, Dias, Lima, Neto, Moura, Silva, Sousa, Souza, Goncalves, Alves, Brito, Pinto, Ramos, Rocha, Gomes, Lopes, Jesus, Nunes, Filho, Santos, Costa, and Nascimento