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Surname Kaio (Kaio , Кайо , カイオ ) , throughout the world, is quite a rare family name. The last name Kaio is habitual in Estonia, where it is quite a rare surname, New Zealand, where it is a rare surname, and Kenya. Not in comparison with a country's population, it is commonest in Kenya, Japan, and the United States. Much more frequently, Kaio is the forename as well as the last name.
Melo, Martins, Marques, Machado, Moreira, Santana, Almeida, Andrade, Cardoso, Barbosa, Batista, Pereira, Ribeiro, Freitas, Carvalho, Teixeira, Henrique, Vinicius, Ferreira, Oliveira, Rodrigues, Goncalves, Vieira, Borges, Barros, Castro, Cruz, Reis, Dias, Lima, Moura, Silva, Sousa, Souza, Alves, Costa, Fernandes, Cesar, Ramos, Rocha, Gomes, Lopes, Jesus, Nunes, Mendes, Santos, Soares, Araujo, Brito, and Nascimento