Cognomen Giorno (Giorno 
, Jornar 
) , in the world, is quite a rare surname. The family name Giorno is habitual in Israel, where it is quite a rare surname, Italy, and Argentina. Not in comparison with a country's population, it most frequently occurs in Italy, Argentina, and the United States. Much less frequently, Giorno is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Giorno | Argentina, United States, Israel, Brazil, Italy |
| Jornar | Venezuela, Philippines, Norway, United States |
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john giorno American writer (1936-2019), US (b. 1936) |
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| eusebio giorno AR (b. 1902) |
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marina di giorno French pianist, FR (b. 1989) |
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| guy giorno Canadian lawyer and political advisor, CA (b. 1965) |
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| thais b s giorno researcher (ORCID 0000-0002-0352-7671) |
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| rosaria del giorno researcher ORCID ID = 0000-0001-5206-8865 |
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| tommy di giorno Italian musician, IT (b. 1980) |
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| lidietta giorno researcher |
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| eliana p c giorno researcher |
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| virginia giorno Italian computer scientist, IT |
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| chiara del giorno |
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| francesco giorno association football player, IT (b. 1993) |
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| francesco di giorno association football player, IT |
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