Family name Mattiello (Mattiello 
, Маттиелло 
) , worldwide, is quite a common last name. The cognomen Mattiello is habitual in Italy, where it is quite a rare surname, Brazil, where it is a rare surname, and Switzerland. Not in comparison with a country's population, this name is the most popular in Italy, Brazil, and the United States. Very seldom, Mattiello is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mattiello | Argentina, France, United States, Brazil, Italy |
| Маттиелло | Russia |
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ángel mattiello Argentine singer, AR (b. 1913) |
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nicholas mattiello American politician, US (b. 1963) |
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davide mattiello Italian politician, IT (b. 1972) |
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| christian mattiello French association football player, FR (b. 1962) |
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| andrea mattiello Italian art historian (1975-), IT (b. 1975) |
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| stela mattiello researcher |
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| gino mattiello Italian weightlifter |
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| amalia mattiello researcher |
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| sara mattiello researcher (ORCID 0000-0002-2907-0964) |
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| leonardo mattiello researcher ORCID ID = 0000-0002-9517-0226 |
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| luigi mattiello researcher |
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| silvana mattiello researcher, ORCID id # 0000-0003-1885-949X |
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| rita mattiello researcher |
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| alessandro mattiello researcher |
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| edson m mattiello researcher |
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