Cognomen Portelli (Portelli 
) , all around the world, is quite a common surname. The cognomen Portelli is habitual in Malta, where it is a widespread surname, Australia, where it is quite a rare surname, and Cyprus. In absolute terms, it is the most numerous in Malta, Italy, and Australia. Very seldom, Portelli is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Portelli | Malta, Italy, France, Australia, United States |
| carlo portelli Italian painter, IT (b. 1510) |
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| giovanni portelli IT (b. 1768) |
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angelo portelli Catholic bishop (1852-1927), MT (b. 1852) |
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| ġużepp portelli Maltese Roman Catholic prelate, MT (b. 1880) |
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| george anthony portelli, aka portell 30 Jul 1898 Portsea Is. Portsmouth - (b. 1898) |
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serge portelli French magistrate, FR (b. 1950) |
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john peter portelli 20th century Maltese philosopher, MT (b. 1954) |
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| frank portelli Maltese artist and mural painter (b. 1922) |
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florence portelli French politician, FR (b. 1978) |
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marthese portelli Maltese lawyer and politician |
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| ġemma portelli Maltese stage actress (1932-2008), MT (b. 1932) |
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| alessandro portelli Italian scholar of American literature, IT (b. 1942) |
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| frank portelli Maltese politician, MT (b. 1944) |
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| freddie portelli Maltese singer-songwriter, MT (b. 1944) |
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| leo portelli Maltese archer, MT (b. 1946) |
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