Family name Chiarella (Chiarella 
) , in the world, is quite a common cognomen. The last name Chiarella is habitual in Italy, where it is quite a rare surname, Peru, and Argentina. Not in comparison with a country's population, it is the most numerous in Italy, the United States, and Argentina. Very seldom, Chiarella is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Chiarella | Argentina, Brazil, Peru, Italy, United States |
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gerardo chiarella Argentinian actor, AR (b. 1905) |
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| attilio chiarella Italian footballer, IT (b. 1887) |
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| jose chiarella Peruvian association football manager, PE (b. 1929) |
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| rafael chiarella Brazilian association football player (1935-1980), BR (b. 1935) |
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| jorge chiarella Peruvian journalist, PE (b. 1943) |
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| carl chiarella economist (b. 1944) |
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| elizabeth mary chiarella nursing and midwifery academic, AU (b. 1952) |
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| tom chiarella American academic, US (b. 1961) |
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| walter chiarella Italian footballer, IT (b. 1963) |
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| emanuela chiarella researcher |
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| fabio chiarella researcher |
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| francesco chiarella researcher |
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| anna m chiarella researcher |
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| flavia c chiarella researcher |
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| giuseppe chiarella researcher |
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