Last name Otaciano (Otaciano 
) , worldwide, is a rare family name. The cognomen Otaciano is characteristic of Latin America and the Caribbean, particularly Brazil, where it is a very rare surname, and Mexico, where it is an extremely rare surname. More frequently, Otaciano is the forename as well as the last name.
Melo, Soares, Araujo, Campos, Barros, Junior, Martins, Santana, Almeida, Andrade, Azevedo, Barbosa, Batista, Pereira, Ribeiro, Freitas, Queiroz, Carvalho, Ferreira, Oliveira, Rodrigues, Goncalves, Santos, Moraes, Filho, Viana, Cruz, Rosa, Reis, Dias, Lima, Neto, Matos, Moura, Sales, Silva, Fernandes, Sousa, Alves, Costa, Cunha, Brito, Paiva, Ramos, Rocha, Gomes, Lopes, Jesus, Souza, and Nascimento