Cognomen Mercino (Mercino 
) , all over the world, is a very rare family name. The surname Mercino is habitual in Philippines, where it is an extremely rare surname, the United States, and Brazil. Much more prevalently, Mercino is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mercino | Brazil, Democratic Republic of the Congo, United States, Philippines, India |
Vaz, Soares, Araujo, Barros, Passos, Junior, Franco, Marlier, Moreira, Almeida, Andrade, Barbosa, Batista, Pereira, Ribeiro, Vicente, Fonseca, Siqueira, Teixeira, Ferreira, Oliveira, Rodrigues, Santos, Maximo, Filho, Viana, Melo, Muri, Adao, Cruz, Rosa, Reis, Dero, Lima, Jose, Neto, Goncalves, Vale, Sousa, Souza, Alves, Costa, Paula, Pinto, Rocha, Gomes, Lopes, Jesus, Silva, and Passidonio