Cognomen Leocadio (Leocadio 
, Léocadio 
) , throughout the world, is a common family name. The family name Leocadio is characteristic of Cabo Verde, where it is quite a common surname, Mexico, where it is quite a rare surname, and Nicaragua. Not in comparison with a country's population, it is the most numerous in Mexico, Brazil, and Spain. Also, Leocadio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Leocadio | Spain, Peru, Philippines, Mexico, Brazil |
| Léocadio | France |
| paolo san leocadio Italian painter in Spain (1447-1520), IT (b. 1447) |
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| felipe pablo de san leocadio Spanish painter, ES |
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| cristina martínez leocadio researcher (ORCID 0000-0002-6605-2992) |
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