In all the world, Sidalia (Sidalia 
) is quite a rare female forename. The first name Sidalia is habitual in Latin America and the Caribbean, particularly Brazil, where it is a rare feminine name, Nicaragua, and Peru. Measured by absolute frequency, this name is the most popular in Latin America and the Caribbean, particularly Brazil, Mexico, and Peru. Very seldom, Sidalia is the last name as well as the forename.
Cruz, Garcia, Martins, Machado, Moreira, Miranda, Santana, Almeida, Andrade, Cardoso, Barreto, Barbosa, Batista, Pereira, Ribeiro, Tavares, Carvalho, Teixeira, Ferreira, Oliveira, Conceicao, Rodriguez, Borges, Castro, Amorim, Araujo, Rosa, Reis, Dias, Lima, Silva, Sousa, Souza, Alves, Anjos, Costa, Rodrigues, Brito, Ramos, Rocha, Gomes, Lopes, Jesus, Macedo, Moraes, Mendes, Santos, Soares, Pinto, and Nascimento