In all the world, Maercio (Maercio 
) is a rare boy's first name. The given name Maercio is habitual in Latin America and the Caribbean, particularly Brazil, where it is a rare male name.
Melo, Junior, Vieira, Martins, Moreira, Menezes, Almeida, Andrade, Cardoso, Barbosa, Batista, Bezerra, Pereira, Ribeiro, Freitas, Siqueira, Carvalho, Teixeira, Ferreira, Oliveira, Rodrigues, Goncalves, Duarte, Araujo, Soares, Santos, Cruz, Reis, Dias, Lima, Neto, Silva, Sousa, Souza, Alves, Abreu, Fernandes, Costa, Ramos, Gomes, Leite, Lopes, Neves, Nunes, Filho, Morais, Moraes, Mendes, Cunha, and Nascimento