Family name Longarini (Longarini 
) , around the globe, is quite a rare surname. The surname Longarini is habitual in Italy, where it is quite a rare surname, Argentina, and Canada, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Italy, Argentina, and Brazil. Very seldom, Longarini is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Longarini | Brazil, Argentina, Canada, United States, Italy |
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renée longarini Italian actress (1931-2010), IT (b. 1931) |
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| joseph longarini FR (b. 1907) |
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| edoardo longarini Italian entrepreneur, IT (b. 1931) |
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| carlo longarini Italian ice hockey player (1939-2010), CA (b. 1939) |
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| iacopo longarini Italian particle physicist |
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| c. longarini researcher, ORCID iD = 0000-0003-4663-0318 |
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