Cognomen Regni (Regni 
) , globally, is a rare surname. The last name Regni is habitual in Italy, where it is a rare surname, France, where it is a very rare surname, and Venezuela. Not in comparison with a country's population, it is the most numerous in Italy, the United States, and India. Much less frequently, Regni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Regni | Italy, France, India, Venezuela, United States |
|
john f. regni United States general, US (b. 1952) |
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| filippo regni Italian association football player, IT (b. 1936) |
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| luca regni researcher |
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| alessio regni researcher |
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| mikhaël regni |
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