Cognomen Marenghi (Marenghi 
) , all over the world, is quite a rare surname. The cognomen Marenghi is characteristic of Italy, where it is quite a rare surname, Switzerland, where it is a rare surname, and Argentina. In absolute terms, it is the most numerous in Italy, the United States, and France. Very seldom, Marenghi is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Marenghi | Argentina, United Kingdom, France, United States, Italy |
| marenghi lorenzo (b. 1456) |
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| cesare marenghi author (1801-2000) (b. 1801) |
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francesco marenghi italian politician (1904-1988), IT (b. 1904) |
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| giovanni marenghi physician (1868-1903) (b. 1868) |
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| ernesto marenghi Italian agronomist (1874-1925), IT (b. 1874) |
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| marco marenghi Film animator (b. 1901) |
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| anthony marenghi American sportswriter, US |
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| cristina marenghi researcher ORCID ID = 0000-0002-6867-7646 |
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| enzo maria marenghi |
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| gherardo maria marenghi |
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| charles marenghi FR |
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| carlo maria marenghi (b. 1984) |
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