Throughout the world, Maelly (Maelly 
) is a rare unisex forename. The first name Maelly is characteristic of Brazil, where it is a very rare unisex name, and France, where it is a very rare female name. Very seldom, Maelly is the last name as well as the forename.
Melo, Vieira, Martins, Marques, Marmora, Moreira, Santana, Almeida, Barbosa, Batista, Pereira, Ribeiro, Oropeza, Medeiros, Cristina, Teixeira, Trudelle, Ferreira, Oliveira, Rodrigues, Guimaraes, Goncalves, Barros, Fernandes, Aguiar, Soares, Sene, Cruz, Reis, Dias, Leal, Lima, Silva, Sousa, Souza, Alves, Carmo, Costa, Brito, Ramos, Guyot, Gomes, Lopes, Viana, Morais, Moraes, Santos, Araujo, and Nascimento