Surname Romaniello (Romaniello 
) , throughout the world, is quite a rare last name. The cognomen Romaniello is habitual in Uruguay, where it is quite a rare surname, Italy, and Argentina, where it is a rare surname. Measured by absolute frequency, the name is most common in Italy, the United States, and Uruguay. Very seldom, Romaniello is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Romaniello | Italy, Uruguay, United States, Argentina, France |
| vincenzo romaniello IT (b. 1858) |
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| luigi romaniello IT (b. 1860) |
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| john angel romaniello Roman Catholic clergyman (b. 1900) |
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cristian romaniello Italian politician, IT (b. 1988) |
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| matthew romaniello historian (b. 1950) |
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| mara romaniello Italian classical philologist and archaeologist (1976-), IT (b. 1976) |
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| donatella romaniello researcher |
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| stephen j romaniello researcher |
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| pina romaniello researcher (ORCID 0000-0001-8300-8320) |
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| roberto romaniello researcher |
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| rosa maria romaniello Italian geographer, IT |
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| romina romaniello researcher |
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| nicola romaniello IT (b. 1974) |
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| john romaniello (b. 1982) |
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