Surname Caballero (Caballero 
, Cavalheiro 
, Кабальеро 
) , worldwide, is a widespread last name. The family name Caballero is characteristic of Latin America and the Caribbean, particularly Paraguay, where it is a widespread surname, Panama, where it is a common surname, and Honduras (explore the name in all countries). In absolute terms, it is commonest in Mexico, Philippines, and Colombia. Much less frequently, Caballero is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Caballero | Mexico, Colombia, Paraguay, Philippines, Brazil |
| Cavalheiro | Spain, Colombia, Paraguay, Brazil, Argentina |
| Кабальеро | Russia |
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diego caballero Spanish merchant and minor Conquistador, ES (b. 1401) |
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| francisco antonio caballero Spanish university teacher, ES (b. 1635) |
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| cristóbal caballero (b. 1631) |
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| raimundo caballero Roman Catholic clergyman (b. 1655) |
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josé antonio caballero Spanish politician, ES (b. 1754) |
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josé agustín caballero Cuban catholic priest and philosopher (1762-1835), CU (b. 1762) |
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| antonio caballero de barrera 18th century Spanish monk and missionary, ES (b. 1715) |
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bernardo francés caballero Archbishop of Saragossa, ES (b. 1774) |
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| antonio caballero Caballero, Antonio; b. 1728?; d. 1822, Granada; choirmaster, ES (b. 1728) |
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pedro juan caballero politician (1786-1821) and leading figure of Paraguayan independence, PY (b. 1786) |
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| raimundo diosdado caballero Catholic miscellaneous writer, ES (b. 1740) |
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fernán caballero Spanish women novelist, ES (b. 1796) |
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| fausto caballero (b. 1739) |
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| ramón diosdado caballero (b. 1740) |
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| juan caballero Peruvian politician, PE (b. 1750) |
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