Cognomen Simaia (Simaia 
) , around the world, is an extremely rare surname. The surname Simaia is habitual in Georgia, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and Brazil. Much more prevalently, Simaia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Simaia | Brazil, Georgia, Venezuela, United States, Romania |
Few, Santos, Soares, Araujo, Amaral, Castro, Marques, Machado, Santana, Almeida, Mudadu, Ambille, Palheta, Pacheco, Pereira, Ribeiro, Freitas, Zonzini, Monteiro, Ferreira, Oliveira, Barreto, Mendes, Merces, Maciel, Maia, Cruz, Reis, Dias, Lima, Silva, Sousa, Souto, Souza, Anjos, Abreu, Costa, Ramos, Gomes, Lopes, Jesus, Nalin, Fraga, Zonta, Manaia, Mattos, Magalhaes, and Nascimento