Cognomen Cienfuegos (Cienfuegos 
) , worldwide, is a common family name. The last name Cienfuegos is characteristic of Latin America and the Caribbean, particularly El Salvador, where it is quite a common surname, Peru, where it is quite a rare surname, and Nicaragua. In absolute terms, the name is most common in Latin America and the Caribbean, particularly Mexico, El Salvador, and Peru. Very seldom, Cienfuegos is the forename as well as the last name.
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| Cienfuegos | Peru, Spain, United States, Mexico, El Salvador |
| pedro díaz de cienfuegos ES (b. 1574) |
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juan álvaro cienfuegos villazón Spanish catholic cardinal and archbishop, ES (b. 1657) |
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| pedro díaz de cienfuegos Roman Catholic bishop (b. 1652) |
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| beatriz cienfuegos Spanish newspaperwoman, editor, ES (b. 1701) |
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| romualdo velarde y cienfuegos Roman Catholic bishop (b. 1701) |
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jose ignacio cienfuegos Catholic bishop, CL (b. 1762) |
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francisco javier cienfuegos jovellanos Spanish cardinal, ES (b. 1766) |
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| bartolomé cienfuegos Roman Catholic bishop (1755-1827) (b. 1755) |
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| nicasio álvarez de cienfuegos Spanish poet (1764-1809), ES (b. 1764) |
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| eladia bernaldo de quirós y gonzalez de cienfuegos (1839-1909) (b. 1839) |
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| francisco solano concha cienfuegos Chilean physician and politician, CL (b. 1863) |
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camilo cienfuegos Cuban revolutionary (1932-1959), CU (b. 1932) |
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| casimiro cienfuegos Spanish writer, ES (b. 1891) |
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alberto cienfuegos Chilean politician, CL (b. 1947) |
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francisco cienfuegos ES (b. 1963) |
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