Cognomen Soeiro (Soeiro 
) , around the globe, is a common last name. The cognomen Soeiro is habitual in Portugal, where it is quite a common surname, Brazil, where it is quite a rare surname, and Luxembourg. In absolute terms, it most frequently occurs in Brazil, Portugal, and Mozambique.
| VARIANT | COUNTRY |
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| Soeiro | Portugal, Angola, France, Brazil, Mozambique |
| soeiro nunes velho (b. 1050) |
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| soeiro fromarigues PT (b. 1060) |
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| soeiro mendes de sousa PT (b. 1100) |
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| soeiro pires da silva (b. 1130) |
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| soeiro aires de valadares PT (b. 1140) |
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| soeiro pais correia (b. 1150) |
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| soeiro raimundes de riba de vizela Portuguese politician, PT (b. 1160) |
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| soeiro reimão PT (b. 1160) |
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| soeiro viegas coelho (b. 1160) |
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| soeiro pires de azevedo (b. 1180) |
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| soeiro pires da maia PT (b. 1180) |
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| soeiro viegas de ribadouro Lord of Fontelo, Vila Cova, Fonte Arcada and Caria (b. 1200) |
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| esteban soeiro Trinitarian priest of Portugal, PT (b. 1235) |
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soeiro da costa Portuguese nobleman and navigator, PT (b. 1390) |
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| soeiro pereira gomes Portuguese politician (1909-1949), PT (b. 1909) |
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