Cognomen Buide (Buide 
) , in the world, is a rare last name. The surname Buide is habitual in Argentina, where it is a rare surname, Spain, and Venezuela, where it is an extremely rare surname. In absolute terms, the name is most common in Argentina, Spain, and the United States. Much less frequently, Buide is the forename as well as the last name.
| eochaid buide King of Dál Riata (b. 501) |
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| ruaidrí na saide buide King of Connacht (b. 1001) |
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| maría cecilia perrín de buide AR (b. 1957) |
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| brian mac aeda buide Peerage person ID=546382 |
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