Family name Onezio (Onezio 
) , across the world, is a rare surname. The cognomen Onezio is characteristic of Latin America and the Caribbean, particularly Brazil, where it is a very rare surname. More frequently, Onezio is the forename as well as the last name.
Melo, Aguiar, Junior, Vieira, Martins, Machado, Moreira, Santana, Almeida, Andrade, Barbosa, Batista, Pereira, Ribeiro, Freitas, Fonseca, Queiroz, Carvalho, Ferreira, Oliveira, Rodrigues, Goncalves, Araujo, Soares, Santos, Morais, Cruz, Rosa, Reis, Dias, Lima, Neto, Moura, Silva, Sousa, Souza, Fernandes, Alves, Assis, Carmo, Costa, Cunha, Ramos, Rocha, Gomes, Lopes, Jesus, Filho, Abreu, and Nascimento