Cognomen Valesio (Valesio 
) , around the world, is a rare family name. The last name Valesio is habitual in Belgium, where it is a rare surname, Italy, and Argentina. Much less frequently, Valesio is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Valesio | Belgium, Argentina, Brazil, Italy, United States |
| francesco valesio Italian engraver, etcher and print dealer, IT (b. 1560) |
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| giovanni valesio Italian painter, IT (b. 1585) |
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| francesco valesio Italian diarist and archeologist, IT (b. 1670) |
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paolo valesio Italian writer, IT (b. 1939) |
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