Cognomen Gecilia (Gecilia 
) , in the world, is an extremely rare family name. The surname Gecilia is habitual in Latin America and the Caribbean, particularly Peru, where it is an extremely rare surname. Much more prevalently, Gecilia is the forename as well as the last name.
Sa, Araujo, Amorim, Castro, Campos, Barros, Rampim, Garcia, Vieira, Menezes, Correia, Barbosa, Pereira, Ribeiro, Izidoro, Carvalho, Dorneles, Ferreira, Oliveira, Conceicao, Rodrigues, Fernandes, Soares, Santos, Morais, Nunes, Paz, Luz, Amor, Reis, Dias, Lima, Lira, Vale, Matui, Moura, Nascimento, Silva, Souza, Smith, Alves, Anjos, Abreu, Carli, Costa, Rocha, Gomes, Jesus, Sousa, and Albuquerque