Cognomen Eiras (Eiras 
) , globally, is quite a common family name. The last name Eiras is characteristic of Portugal, where it is quite a rare surname, Argentina, and Brazil. Much less frequently, Eiras is the forename as well as the last name.
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| Eiras | Argentina, United States, Spain, Portugal, Brazil |
| francisco fernandes eiras (b. 1871) |
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| josé maría rodríguez eiras ES (b. 1905) |
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| secundino rodríguez eiras ES (b. 1905) |
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| haroldo eiras Brazilian composer (1919-1980), BR (b. 1919) |
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| carlos eiras Argentine alpine skier, AR (b. 1932) |
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| josé eiras paz Spanish politician; mayor of Moraña, ES (b. 1938) |
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| álvaro rodríguez eiras ES (b. 1932) |
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| jorge abelardo eiras Argentine alpine skier, AR (b. 1942) |
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| jonei leandro eiras Brazilian priest, BR (b. 1955) |
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| fernando eiras Brazilian actor, BR (b. 1957) |
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| eleonai soares da silva eiras politician from Brazil, BR (b. 1959) |
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| josé antonio eiras (b. 1952) |
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| carlos quintáns eiras Spanish architect, ES (b. 1962) |
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| carolina eiras Argentine alpine skier, AR (b. 1969) |
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| jorge carlos eiras Argentine alpine skier, AR (b. 1970) |
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