Family name Giullia (Giullia 
) , worldwide, is an extremely rare cognomen. The family name Giullia is characteristic of Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname. Predominantly, Giullia is the forename as well as the last name.
Melo, Martins, Marques, Machado, Moreira, Santana, Almeida, Andrade, Azevedo, Barbosa, Pereira, Ribeiro, Freitas, Medeiros, Siqueira, Carvalho, Teixeira, Ferreira, Oliveira, Rodrigues, Guimaraes, Goncalves, Vieira, Garcia, Coelho, Campos, Cruz, Rosa, Reis, Dias, Lima, Silva, Sousa, Souza, Alves, Costa, Fernandes, Cunha, Pinto, Rocha, Gomes, Lopes, Nunes, Mendes, Santos, Soares, Araujo, Castro, Paula, and Nascimento