Cognomen Iommi (Iommi 
, Айоми) , all around the world, is quite a rare last name. The last name Iommi is habitual in Italy, where it is quite a rare surname, Argentina, where it is a rare surname, and France, where it is a very rare surname. Measured by absolute frequency, the name is most common in Italy, Argentina, and the United States. Very seldom, Iommi is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Iommi | Italy, Argentina, United Kingdom, United States, France |
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tony iommi British rock guitarist, GB (b. 1948) |
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| godofredo iommi Argentine poet, AR (b. 1917) |
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| enio iommi Argentinian sculptor and painter (1926-2013), AR (b. 1926) |
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| andrea iommi Italian motorcycle racer, IT (b. 1977) |
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| godofredo iommi Ph.D. University of Warwick 2004 |
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| marica iommi researcher (ORCID 0000-0003-4589-3474) |
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| cristiana iommi author of Biblioteche Oggi, IT |
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| demetrio iommi |
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| toni-marie iommi (b. 1983) |
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Mr, Toni, Nilo, Elso, Eric, Enzo, Emma, Hugo, Vito, Ines, Irma, Ilio, Ivan, Olga, Omar, Maria, Mario, Marta, Marco, Marã, Mauro, Mirta, Tony, Juan, John, Jose, Ms, Ana, Ann, Pia, Jay, Joe, Jim, Mary, Mati, Mike, Sauro, Sara, Anna, Paul, Raul, Rosa, Rita, Ruth, Leah, Lino, Luca, Luis, Samy, and Simon