Last name Colletti (Colletti 
) , globally, is quite a common cognomen. The surname Colletti is habitual in Italy, where it is quite a rare surname, Argentina, where it is a rare surname, and the United States. Measured by absolute frequency, it is the most numerous in Italy, the United States, and Brazil. Much less frequently, Colletti is the forename as well as the last name.
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| Colletti | Brazil, Italy, Argentina, United States, France |
| pietro colletti Roman Catholic bishop (b. 1573) |
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nicolao colletti 18th-century Italian mathematician (b. 1800) |
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lucio colletti Italian philosopher and politician (1924-2001), IT (b. 1924) |
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ned colletti American baseball executive, US (b. 1954) |
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| carmelo colletti IT (b. 1920) |
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andrea colletti Italian politician, IT (b. 1981) |
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stephen colletti American actor, US (b. 1986) |
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| vittorio colletti (b. 1943) |
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| marta colletti researcher |
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| evan j colletti researcher |
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| patrick m colletti researcher (ORCID 0000-0001-9625-8046) |
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| carmelo g colletti researcher |
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| liliana colletti researcher |
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| rachel c colletti researcher |
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| richard b colletti researcher |
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