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Surname Sidnei (Sidnei , Сидней ) , worldwide, is a rare last name. The surname Sidnei is habitual in Brazil, where it is a rare surname, Kyrgyzstan, where it is a very rare surname, and Chile. In absolute terms, it is commonest in Brazil, the United States, and Argentina. Predominantly, Sidnei is the forename as well as the last name.
Melo, Junior, Vieira, Martins, Machado, Moreira, Santana, Almeida, Andrade, Cardoso, Barbosa, Batista, Pereira, Ribeiro, Freitas, Carvalho, Teixeira, Ferreira, Oliveira, Conceicao, Rodrigues, Goncalves, Borges, Campos, Araujo, Soares, Cruz, Rosa, Reis, Dias, Lima, Silva, Sousa, Souza, Alves, Costa, Fernandes, Paula, Ramos, Rocha, Gomes, Lopes, Jesus, Nunes, Filho, Moraes, Mendes, Santos, Pinto, and Nascimento