Globally, Diletta (Diletta 
) is quite a rare girly forename. The forename Diletta is characteristic of Italy, where it is quite a rare feminine name, France, where it is a very rare feminine name, and Brazil. Not in comparison with a country's population, the name is most common in Italy, Brazil, and the United States. Very seldom, Diletta is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Diletta | Brazil, Italy, United States, France, Spain |
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diletta sestini Italian volleyball player, IT (b. 1987) |
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diletta leotta Italian television presenter (1991), IT (b. 1991) |
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| diletta d'andrea Italian actress, IT (b. 1944) |
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| diletta petronio Italian journalist, IT (b. 1960) |
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| diletta ami researcher (b. 1973) |
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| diletta giampiccolo Olympic wrestler, IT (b. 1974) |
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| diletta minutoli Italian papyrologist (1977-2021), IT (b. 1977) |
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| diletta fiorani researcher |
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| diletta cassini researcher |
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| diletta arcidiacono researcher ORCID ID = 0000-0002-4417-6513 |
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| diletta calabrò researcher (ORCID 0000-0001-7321-1966) |
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| diletta cacciagrano researcher |
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| diletta di simone IT (b. 1970) |
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| diletta maira researcher |
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| diletta bianchini researcher |
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Dile, Grella, Iuliucci, Mancini, Mazzoni, Moretti, Santini, Colombo, Bellini, Bianchi, Patruno, Perrone, De Luca, Dottori, Franchi, Orlando, Proietti, D'Andrea, Giuliani, Lombardi, Esposito, Mazzinghi, Grasso, Simonetti, Romano, Brutti, Marco, Monti, Sanna, Serra, Carli, Costa, Berti, Betti, Bruno, Bruni, Rossi, Ricci, Rizzo, Russo, Greco, Ferri, Marino, Marini, Simone, Svampa, Basile, Pasini, and Benesperi