Surname Passalacqua (Passalacqua 
) , all around the world, is quite a common last name. The family name Passalacqua is habitual in Italy, where it is quite a rare surname, Puerto Rico, and Uruguay. Not in comparison with a country's population, it is commonest in Italy, the United States, and Argentina. Much less frequently, Passalacqua is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Passalacqua | Argentina, France, Italy, Chile, United States |
| pietro passalacqua Italian architect, IT (b. 1690) |
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giuseppe passalacqua Italian General (1794-1849), IT (b. 1794) |
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| joseph passalacqua Italian egyptologist, art dealer and collector, IT (b. 1797) |
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| azzo passalacqua Italian general, IT (b. 1885) |
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ítalo passalacqua campos Chilean journalist (1945-2018), CL (b. 1945) |
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| vittorio passalacqua Italian politician, IT (b. 1903) |
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hugo passalacqua Argentinian politician, AR (b. 1957) |
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| armando passalacqua Italian association football player (1911-1991), IT (b. 1911) |
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| ubaldo passalacqua Italian football player, IT (b. 1918) |
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| carlos m. passalacqua (b. 1912) |
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| ugo passalacqua IT (b. 1914) |
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| david passalacqua illustrator (b. 1936) |
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| juan manuel garcía passalacqua Puerto Rican lawyer and journalist, US (b. 1937) |
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| marina passalacqua Italian latinist (1946-), IT (b. 1946) |
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| nicodemo giuseppe passalacqua botanist (b. 1966) |
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