Family name D'Alessio (D'Alessio 
) , globally, is a common last name. The family name D'Alessio is habitual in Italy, where it is quite a common surname, Lesotho, where it is quite a rare surname, and Argentina. In absolute terms, this name is the most popular in Italy, Argentina, and the United States. Very seldom, D'Alessio is the forename as well as the last name.
| VARIANT | COUNTRY |
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| D'Alessio | Italy, France, Canada, United States, Argentina |
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francesco d'alessio Italian politician and lawyer (1886-1949), IT (b. 1886) |
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ugo d'alessio Italian actor (1909-1979), IT (b. 1909) |
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aldo d'alessio Italian politician, IT (b. 1928) |
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andrés j. d'alessio Argentine judge, AR (b. 1940) |
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| nicola d'alessio Italian politician, IT (b. 1890) |
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| eugène dallegio d'alessio TR (b. 1888) |
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| roberto d'alessio IT (b. 1893) |
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antonio d'alessio italian politician, IT (b. 1964) |
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gigi d'alessio Italian singer-songwriter (1967-), IT (b. 1967) |
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| francesco d'alessio Italian politician and lawyer (1922-2016), IT (b. 1922) |
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| poncho d'alessio MX (b. 1916) |
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ernesto d'alessio Mexican actor and politician, MX (b. 1977) |
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| carlos d'alessio composer, AR (b. 1935) |
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| giovan battista d'alessio Italian classical philologist, IT (b. 1950) |
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| lupita d'alessio musical artist, MX (b. 1954) |
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