Surname Acuña (Acuña 
, Acuna , Акунья 
) , across the world, is a widespread last name. The family name Acuña is habitual in Latin America and the Caribbean, particularly Costa Rica, where it is a common surname, Paraguay, and Argentina (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Latin America and the Caribbean, particularly Argentina, Mexico, and Colombia. Much less frequently, Acuña is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Acuna, Acuña | Mexico, Chile, Colombia, Argentina, Peru |
| Акунья | Russia, Ukraine |
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alfonso carrillo de acuña Spanish politician and Roman Catholic archbishop, ES (b. 1410) |
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| alfonso téllez girón y vázquez de acuña castillan noble (b. 1380) |
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antonio de acuña Spanish bishop, ES (b. 1459) |
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| pedro acuña avellaneda †, Bishop of Salamanca, Spain ; Bishop, ES (b. 1505) |
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| pedro vázquez de acuña Costa Rican politician (b. 1506) |
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diego sarmiento de acuña Spanish diplomat (1567-1626), ES (b. 1567) |
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| hernando de acuña Spanish poet, ES (b. 1518) |
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brianda de acuña vela Spanish nun and writer (1576-1630), ES (b. 1576) |
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| juan de acuña ES (b. 1543) |
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| cristóbal diatristán de acuña Spanish missionary and explorer, ES (b. 1597) |
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| juan manuel de acuña, 3.marqués de escalona 26 May 1695 Madrid - 30 Oct 1742 Madrid (b. 1695) |
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| ferran acuña ES (b. 1690) |
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pedro antonio acuña y cuadros Spanish politician (1786-1850), ES (b. 1786) |
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| joaquin ciro de acuña, 5.marqués de escalona 28 Feb 1738 Madrid - (b. 1738) |
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tadeo evaristo acuña vera y aragón Argentine lawyer, AR (b. 1790) |
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