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Globally, Ireneu (Ireneu
) is quite a rare principally male, but scarcely feminine first name. The given name Ireneu is characteristic of Brazil, where it is a rare boy's name, Portugal, and Indonesia, where it is a very rare feminine name. Much less frequently, Ireneu is the last name as well as the forename.
Vaz, Correa, Barros, Borges, Junior, Martins, Machado, Santana, Schmidt, Almeida, Andrade, Cardoso, Barbosa, Pereira, Freitas, Silveira, Carvalho, Ferreira, Oliveira, Ariyantin, Rodrigues, Goncalves, Araujo, Santos, Mendes, Moraes, Cruz, Koch, Kruk, Lima, Neto, Moura, Silva, Sousa, Souza, Alves, Fernandes, Costa, Klein, Petry, Rocha, Runke, Gomes, Lopes, Jesus, Nunes, Filho, Maciel, Cunha, and Nascimento