Cognomen Castronovo (Castronovo 
) , all over the world, is quite a common last name. The cognomen Castronovo is habitual in Italy, where it is quite a rare surname, Belgium, and Argentina, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Italy, the United States, and France. Very seldom, Castronovo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Castronovo | Belgium, Italy, Argentina, United States, France |
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giuseppe castronovo IT (b. 1814) |
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raúl castronovo Argentine footballer, AR (b. 1949) |
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| ettore castronovo IT (b. 1894) |
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| valerio castronovo Italian historian, IT (b. 1935) |
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| rosario castronovo Italian footballer, IT (b. 1953) |
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| véronique castronovo French politician, FR (b. 1962) |
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| russ castronovo English professor, US (b. 1965) |
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| simonetta castronovo (b. 1964) |
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| charles castronovo American opera singer, US (b. 1975) |
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| sandro castronovo Dr.-Ing. Universität des Saarlandes 2013 |
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| gaetano castronovo researcher (ORCID 0000-0002-5859-3801) |
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| mario castronovo researcher, IT |
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| michael castronovo researcher |
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| matteo castronovo researcher |
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| antonio di castronovo Roman Catholic bishop |
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