Cognomen Orrego (Orrego 
) , in all the world, is a common last name. The surname Orrego is characteristic of Latin America and the Caribbean, particularly Paraguay, where it is quite a common surname, Colombia, and Chile (explore the name in all countries). Much less frequently, Orrego is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Orrego | Paraguay, Chile, Colombia, Argentina, Peru |
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rosario orrego castañeda Chilean writer, CL (b. 1834) |
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augusto orrego luco Chilean psychiatrist (1849-1933), CL (b. 1849) |
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antenor orrego Peruvian writer and philosopher, PE (b. 1892) |
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| rafael orrego Chilean politician, CL (b. 1862) |
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eduardo orrego Peruvian politician and architect, PE (b. 1933) |
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juan pablo orrego Chilean environmentalist, CL (b. 1949) |
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vilma orrego CL (b. 1950) |
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claudio orrego Chiilean politician, CL (b. 1966) |
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| juan orrego salas Chilean musician, CL (b. 1919) |
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marcelo orrego Argentine politician, AR (b. 1975) |
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ricardo orrego Colombian television presenter, CO (b. 1975) |
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| fernando orrego Chilean neuroscientist, CL (b. 1933) |
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| eduardo orrego (b. 1933) |
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| rodrigo orrego CL (b. 1965) |
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| marta ramirez orrego CO (b. 1966) |
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