Cognomen Caic (Caic 
) , around the globe, is a very rare surname. The last name Caic is characteristic of Croatia, where it is a rare surname, Portugal, where it is a very rare surname, and Norway. Not in comparison with a country's population, the name is most common in Germany, Croatia, and Brazil. More prevalently, Caic is the forename as well as the last name.
Maia, Marques, Machado, Santana, Andrade, Cardoso, Batista, Pereira, Ramalho, Roberto, Ribeiro, Lacerda, Silveira, Siqueira, Seccafim, Carvalho, Ferreira, Oliveira, Conceicao, Cerqueira, Rodrigues, Goncalves, Martins, Cavalheiro, Vieira, Araujo, Melo, Sena, Cruz, Reis, Lima, Silva, Sousa, Souza, Alves, Costa, Brito, Bispo, Rocha, Gomes, Lopes, Jesus, Macedo, Morais, Moraes, Santos, Soares, Borges, and Nascimento