Surname Proaño (Proaño 
) , around the globe, is quite a rare cognomen. The cognomen Proaño is characteristic of Latin America and the Caribbean, particularly Antigua and Barbuda, where it is quite a common surname, Ecuador, and Peru, where it is quite a rare surname. In absolute terms, it most frequently occurs in Latin America and the Caribbean, particularly Ecuador, Mexico, and Peru. Very seldom, Proaño is the forename as well as the last name.
| manuel josé proaño Spanish speaking author (b. 1835) |
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| federico proaño (b. 1848) |
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| eugenio prado proaño (b. 1897) |
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| leonidas proaño Ecuadorian priest and theologian (1910-1988), EC (b. 1910) |
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maximiliano proaño (b. 1983) |
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| alvaro proaño researcher, PE |
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| diego fernández de proaño Spanish explorer and conquistador |
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| fred proaño Ecuadorian karateka |
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| efrén proaño Ecuadorian association football player, EC (b. 1992) |
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