All over the world, Celmo (Celmo 
) is quite a rare masculine first name. The forename Celmo is habitual in Brazil, where it is a rare male name, Angola, and Argentina, where it is a very rare male name. Not in comparison with a country's population, this name is the most popular in Brazil, Angola, and Philippines. Very seldom, Celmo is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Celmo | Angola, Mexico, Philippines, Brazil, United States |
| celmo rodrigues Brazilian painter, BR (b. 1930) |
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| celmo celeno porto BR (b. 1934) |
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| celmo lazzari BR (b. 1956) |
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| celmo celeno porto researcher (ORCID 0000-0001-5860-9490) |
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Melo, Borges, Junior, Vieira, Martins, Marques, Machado, Moreira, Santana, Almeida, Andrade, Barbosa, Pereira, Ribeiro, Freitas, Monteiro, Carvalho, Pinheiro, Teixeira, Ferreira, Oliveira, Rodrigues, Campos, Castro, Araujo, Soares, Cruz, Rosa, Reis, Dias, Lima, Moura, Silva, Sousa, Souza, Alves, Fernandes, Abreu, Cunha, Pinto, Ramos, Rocha, Gomes, Lopes, Jesus, Nunes, Filho, Santos, Costa, and Nascimento