Cognomen Leontini (Leontini 
) , in all the world, is a rare family name. The surname Leontini is habitual in Italy, where it is a rare surname, Greece, and Australia, where it is a very rare surname. Measured by absolute frequency, the name is most common in Italy, Greece, and the United States. Very seldom, Leontini is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Leontini | Australia, Canada, Greece, United States, Italy |
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guido leontini Italian actor, IT (b. 1927) |
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innocenzo leontini Italian politician, IT (b. 1959) |
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| rose leontini researcher |
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| hippagoras of leontini dedicator of a statue at Olympia, IT |
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| phrynon of leontini statue dedicator at Olympia, IT |
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| heracleides of leontini politician |
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