In the entire world, Welington (Welington 
) is a common boy's forename. The first name Welington is characteristic of Brazil, where it is quite a common male name, the Dominican Republic, where it is quite a rare boy's name, and Portugal, where it is a rare masculine name. In absolute terms, the name is most common in Latin America and the Caribbean, particularly Brazil, the Dominican Republic, and Peru.
| VARIANT | COUNTRY |
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| Welington | Brazil, Tanzania, Dominican Republic, Guatemala, Peru |
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welington de melo Brazilian mathematician (1946-2016), BR (b. 1946) |
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welington castillo Dominican professional baseball catcher, DO (b. 1987) |
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welington adão cruz Brazilian association football player, BR (b. 1988) |
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| welington domingos pereira politician from Brazil, BR (b. 1966) |
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| welington guilherme rezende politician from Brazil, BR (b. 1966) |
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| welington duarte ribeiro politician from Brazil, BR (b. 1975) |
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| welington peixoto moura politician from Brazil, BR (b. 1976) |
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| welington dos reis istrudis person identified in the Museu da Pessoa collection, BR (b. 1977) |
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| welington luiz araújo researcher |
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| welington v silva researcher |
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| welington da silva cordeiro Ph.D. 2015 |
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| welington dantas de jesus Brazilian footballer, BR (b. 1982) |
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| welington wildy muniz dos santos Brazilian association football player, BR (b. 1991) |
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| welington zaza Liberian athletics competitor, LR (b. 1995) |
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| welington morais Brazilian shot putter (b. 1996) |
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Melo, Junior, Vieira, Martins, Marques, Machado, Moreira, Santana, Almeida, Andrade, Cardoso, Barbosa, Batista, Pereira, Ribeiro, Freitas, Carvalho, Teixeira, Ferreira, Oliveira, Rodrigues, Goncalves, Borges, Campos, Araujo, Soares, Cruz, Rosa, Reis, Dias, Lima, Moura, Silva, Sousa, Souza, Alves, Fernandes, Costa, Pinto, Ramos, Rocha, Gomes, Lopes, Jesus, Nunes, Filho, Mendes, Santos, Paula, and Nascimento