Cognomen Caua (Caua 
) , globally, is a very rare family name. The surname Caua is habitual in Brazil, where it is an extremely rare surname, Philippines, and Peru. Not in comparison with a country's population, it is commonest in Brazil, India, and Philippines. Much more prevalently, Caua is the forename as well as the last name.
Melo, Vieira, Martins, Marques, Machado, Moreira, Santana, Almeida, Andrade, Cardoso, Barbosa, Batista, Pereira, Ribeiro, Freitas, Carvalho, Teixeira, Ferreira, Oliveira, Conceicao, Rodrigues, Goncalves, Barros, Campos, Castro, Araujo, Cruz, Rosa, Reis, Dias, Lima, Moura, Silva, Sousa, Souza, Alves, Fernandes, Costa, Ramos, Rocha, Gomes, Lopes, Jesus, Nunes, Moraes, Mendes, Santos, Soares, Brito, and Nascimento