Last name Onesti (Onesti 
) , around the world, is quite a rare surname. The last name Onesti is habitual in Italy, where it is quite a rare surname, Romania, where it is a rare surname, and Uruguay. Measured by absolute frequency, it is commonest in Italy, the United States, and Argentina. Very seldom, Onesti is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Onesti | Romania, Argentina, France, Italy, United States |
| cristoforo onesti (b. 1320) |
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temistocle calzecchi onesti physicist, mathematician, inventor (1853-1922), IT (b. 1853) |
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giulio onesti Italian sports official, IT (b. 1912) |
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icilio calzecchi onesti IT (b. 1911) |
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| rosa calzecchi onesti IT (b. 1916) |
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| clario onesti IT (b. 1921) |
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| armando onesti Italian association football manager and association football player (1936-2019), IT (b. 1936) |
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| larry onesti American football player (1938-2018), US (b. 1938) |
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| anna onesti Italian painter and decorator (1956-), IT (b. 1956) |
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| piero onesti Italian cyclist, IT (b. 1959) |
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| francesca onesti Italian architect and urbanist (1961-), IT (b. 1961) |
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| anna onesti Italian architect (1975-), IT (b. 1975) |
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| emanuela onesti researcher |
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| maria giuseppina onesti researcher |
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| jill onesti researcher |
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