Globally, Lydio (Lydio 
) is quite a rare male given name. The first name Lydio is habitual in Philippines, where it is quite a rare masculine name, Brazil, where it is a rare masculine name, and Mexico, where it is a very rare boy's name. Very seldom, Lydio is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Lydio | Philippines, Mexico, Spain, Brazil, United States |
| lydio machado bandeira de mello Brazilian lawyer, professor and writer, BR (b. 1901) |
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lydio martins corrêa Brazilian writer, BR |
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| lydio f. tomasi (b. 1938) |
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| lydio josé roque |
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Melo, Romano, Garcia, Junior, Tomasi, Vargas, Vieira, Flores, Martins, Machado, Sanchez, Almeida, Andrade, Cardoso, Benatti, Pereira, Ribeiro, Carvalho, Ferreira, Oliveira, Cerqueira, Rodrigues, Barros, Correa, Campos, Castro, Cruz, Rosa, Lima, Neto, Mello, Silva, Souza, Alves, Costa, Porto, Fernandes, Rocha, Leite, Lopes, Lucas, Valle, Filho, Moraes, Santos, Soares, Amorim, Ammann, Gomes, and Nascimento