Family name Rostagni (Rostagni 
) , in the entire world, is a rare cognomen. The last name Rostagni is habitual in Western Europe, particularly Monaco, where it is quite a common surname, France, where it is a rare surname, and Belgium, where it is a very rare surname. In absolute terms, it is the most numerous in France, Italy, and Monaco. Likewise, Rostagni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rostagni | Monaco, France, Democratic Republic of the Congo, United States, Italy |
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antonio rostagni Italian physicist, IT (b. 1903) |
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| augusto rostagni Italian classical philologist, IT (b. 1892) |
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| jean-paul rostagni French footballer, FR (b. 1948) |
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| francesco rostagni Italian, active 1743 |
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