Surname Vilca (Vilca 
) , globally, is a common last name. The cognomen Vilca is characteristic of Latin America and the Caribbean, particularly Peru, where it is a common surname, Argentina, where it is quite a common surname, and Bolivia, where it is quite a rare surname. Very seldom, Vilca is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Vilca | Bolivia, Peru, Chile, Argentina, United States |
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alejandro vilca Argentine trade unionist and politician, AR (b. 1976) |
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| maría luisa vilca Peruvian sprinter, PE (b. 1948) |
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| ricardo vilca Argentinian composer, AR (b. 1953) |
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| susana vilca Peruvian politician, PE (b. 1959) |
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| antonio vilca Peruvian artist, active 1778 |
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| brenda nadia chino vilca researcher, PE |
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| lindsey w vilca researcher, PE |
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| franz zirena vilca researcher ORCID ID = 0000-0002-4534-0733, PE |
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| carlos marcelo concha vilca researcher |
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| rodrigo vilca Peruvian association football player, PE (b. 1999) |
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| marco vilca Peruvian middle-distance runner, PE |
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| christian amilca santiago vilca chess player |
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