Family name Carreiras (Carreiras 
) , across the world, is quite a rare last name. The last name Carreiras is habitual in Portugal, where it is quite a rare surname, Argentina, where it is a rare surname, and Uruguay. Not in comparison with a country's population, the name is most common in Portugal, Brazil, and Argentina. Very seldom, Carreiras is the forename as well as the last name.
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| Carreiras | Portugal, Spain, Argentina, France, Brazil |
| cándido carreiras Spanish journalist, ES (b. 1870) |
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ángel guerreiro carreiras politician and journalist, ES (b. 1945) |
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helena carreiras Minister of the National Defense of Portugal, PT (b. 1965) |
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| manuel carreiras researcher, ES (b. 1959) |
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| carlos carreiras Portuguese politician, PT (b. 1961) |
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| emma balseiro carreiras ES (b. 1968) |
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| carlos carreiras researcher ORCID ID = 0000-0003-3621-5268 |
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| maria do carmo carreiras researcher |
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| joao carreiras researcher ORCID ID = 0000-0003-2737-9420 |
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| franck carreiras researcher (ORCID 0000-0001-8765-7280) |
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| diogo carreiras researcher (ORCID 0000-0003-2048-1895) |
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Mr, Jose, John, Joao, Joel, Joã, Juan, Tais, Nora, Nuno, Eder, Etep, Hugo, Vera, Irma, Ivon, Olga, Omar, Ygor, Maria, Mario, Marta, Luã, Luis, Leda, Geni, Ms, Ju, Mar, Mã, Sã, Ana, Rui, Ruy, Eli, Yan, Marco, Uri, Sara, Alda, Aila, Blas, Paul, Raul, Rosa, Rosi, Ryan, Dina, Mimi, and Marli