Family name Cuestas (Cuestas 
) , throughout the world, is a common cognomen. The last name Cuestas is characteristic of Latin America and the Caribbean, particularly El Salvador, where it is quite a common surname, Honduras, where it is quite a rare surname, and Colombia. Not in comparison with a country's population, it most frequently occurs in Philippines, Colombia, and Argentina. Very seldom, Cuestas is the forename as well as the last name.
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| Cuestas | Mexico, Colombia, Philippines, El Salvador, Argentina |
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juan lindolfo de los reyes cuestas york President of Uruguay (1837-1905), UY (b. 1837) |
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| domingo cuestas AR (b. 1907) |
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nicolás cuestas Uruguayan athlete, UY (b. 1986) |
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lydia cuestas ES (b. 1983) |
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| daniel cuestas researcher |
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| eduardo cuestas researcher (ORCID 0000-0001-9528-5747) |
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| juan carlos cuestas researcher ORCID ID = 0000-0002-7313-2157 |
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| juan cuestas Uruguayan diplomat, UY |
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| maría l cuestas researcher (ORCID 0000-0003-4467-996X) |
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| mauricio gonzalo maquia cuestas cyclist, UY (b. 1983) |
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