Throughout the world, Leocadio (Leocadio 
, Léocadio 
) is a common boy's given name. The forename Leocadio is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is quite a rare male name, Mexico, and Peru. Not in comparison with a country's population, it is the most numerous in Latin America and the Caribbean, particularly Mexico, Brazil, and Peru. Likewise, Leocadio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Leocadio | Spain, Peru, Philippines, Mexico, Brazil |
| Léocadio | France |
| leocadio llerenas (b. 1801) |
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leocadio galán barrena ES (b. 1910) |
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| leocadio hernández ES (b. 1883) |
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| leocadio muro urriza ES (b. 1897) |
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| leocadio mendiola Spanish military personnel (1909-1998), ES (b. 1909) |
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| leocadio vizcarrondo US (b. 1906) |
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| leocadio marín rodríguez Spanish politician, ES (b. 1942) |
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| benes leocadio Brazilian politician, BR (b. 1966) |
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| leocadio hontoria (b. 1966) |
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| leocadio peláez franco Spanish architect, ES |
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| leocadio blanco-bercial US carcinologist, US |
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| leocadio alvarez gomez Spanish politician, ES |
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| leocadio bueso zaera Spanish politician, ES |
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| leocadio rodríguez-mañas researcher |
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| leocadio león crespo Spanish veterinarian, ES |
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