Surname Quirós (Quiros 
, Quirós 
) , globally, is a common family name. The last name Quirós is habitual in Costa Rica, where it is a widespread surname, Panama, where it is quite a common surname, and Spain. In absolute terms, this name is the most popular in Costa Rica, Spain, and Philippines. Very seldom, Quirós is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Quiros | Costa Rica, Panama, Spain, Colombia, Philippines |
| Quirós | Costa Rica, Panama, Spain, Colombia, Argentina |
| tomás bernaldo de quirós (b. 1501) |
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| francisco de quirós Cosmografo mayor del virreinato del Perú, ES (b. 1590) |
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| pedro de quirós ES (b. 1590) |
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| miguel de quirós Spanish mathematician and genealogist, ES (b. 1601) |
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| bernardo cristóbal de quirós bishop of the Roman Catholic Church (b. 1618) |
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| ignacio duarte y quirós Argentinian catholic priest, AR (b. 1618) |
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| antonio bernaldo de quirós (b. 1613) |
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| fernando pablo mariño de lobeira quirós ES (b. 1700) |
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| josé muñoz bernaldo de quirós CL (b. 1708) |
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francisco quirós Peruvian military personnel (1798-1867), PE (b. 1798) |
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| josé maría quirós Spanish military personnel, ES (b. 1750) |
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josé félix quirós President of El Salvador (1811-1883), SV (b. 1811) |
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| mariano quirós Spanish politician (1791-1859), ES (b. 1791) |
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| manuel maría quirós Mexican politician, MX (b. 1798) |
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| ángel fernando de quirós (b. 1799) |
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