Last name Barreira (Barreira 
) , in the entire world, is a common cognomen. The cognomen Barreira is characteristic of British Virgin Islands, where it is a common surname, Portugal, where it is quite a common surname, and Belize, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Brazil, Portugal, and Argentina. Much less frequently, Barreira is the forename as well as the last name.
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| Barreira | Brazil, Argentina, France, Portugal, Spain |
| baltasar barreira Portuguese Jesuit missionary to Africa, PT (b. 1531) |
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dolor uchôa barreira Brazilian instructor, lawyer and historian, BR (b. 1893) |
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gentil barreira Brazilian politician (1895-1970), BR (b. 1895) |
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| ricardo pérez barreira Uruguayan painter (1859-1901), UY (b. 1859) |
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| américo barreira Brazilian journalist (1868-1910), BR (b. 1868) |
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| francisco barreira (b. 1876) |
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| emilian barreira (b. 1883) |
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| maria barreira Portuguese sculptress (1914-2010), PT (b. 1914) |
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edelmira barreira Spanish politician, ES (b. 1978) |
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anamara barreira brazilian businesswoman and digital influencer, BR (b. 1984) |
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| aníbal barreira Portuguese writer, PT (b. 1945) |
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| cora barreira Brazilian volleyball player, BR (b. 1966) |
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| julia rodríguez barreira Spanish politician, ES (b. 1966) |
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| santiago barreira ES (b. 1961) |
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| antónio barreira Portuguese screenwriter, PT (b. 1974) |
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