Family name Onilia (Onilia 
) , across the world, is a very rare last name. The surname Onilia is characteristic of Latin America and the Caribbean, particularly Honduras, where it is a very rare surname, Nicaragua, and Venezuela. Measured by absolute frequency, it is the most numerous in Latin America and the Caribbean, particularly Mexico, Honduras, and Venezuela. Predominantly, Onilia is the forename as well as the last name.
Melo, Duarte, Vieira, Martins, Machado, Santana, Almeida, Andrade, Barbosa, Batista, Pereira, Ribeiro, Freitas, Silveira, Carvalho, Teixeira, Ferreira, Oliveira, Conceicao, Rodrigues, Guimaraes, Goncalves, Borges, Castro, Amorim, Araujo, Cruz, Rosa, Reis, Dias, Lima, Meira, Silva, Sousa, Souza, Alves, Fernandes, Costa, Paiva, Pinto, Pires, Rocha, Gomes, Jesus, Nunes, Mendes, Santos, Soares, Paula, and Nascimento