Cognomen Machaca (Machaca 
) , all over the world, is a common family name. The family name Machaca is characteristic of Latin America and the Caribbean, particularly Bolivia, where it is quite a common surname, Peru, and Argentina, where it is quite a rare surname. Much less frequently, Machaca is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Machaca | Bolivia, Brazil, Mozambique, Argentina, Peru |
| nicolasa machaca Bolivian activist and unionist, BO (b. 1952) |
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| edith s málaga machaca researcher |
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| khaled machaca researcher |
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| antonio machaca Apu Mallku, BO |
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| victor quispe machaca researcher |
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| raúl machaca mamani PE |
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| nelly huamaní machaca PE |
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| fiorella machaca Peruvian association football player, PE |
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| mariabelen isa pescoran machaca chess player |
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