Cognomen Sementa (Sementa 
) , all over the world, is a rare family name. The cognomen Sementa is habitual in Italy, where it is a rare surname, Tanzania, and France, where it is a very rare surname. In absolute terms, it most frequently occurs in Italy, the United States, and Tanzania. Much less frequently, Sementa is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Sementa | Tanzania, France, United States, Italy, Turkey |
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antonio sementa Italian bridge player, IT (b. 1968) |
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| luigi sementa Italian military personnel, IT (b. 1958) |
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| teresa sementa researcher (ORCID 0000-0002-0680-0135) |
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| deborah sementa researcher |
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| luca sementa researcher |
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| carmine sementa |
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| sementa rajhard Croatian actor, HR (b. 1991) |
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Ann, John, Fred, Maria, Marie, Mario, Marco, Mauro, Mladc, Chris, Carol, Brian, Karli, Katie, Kevin, Paolo, Debra, Dario, David, Garry, Linda, Louis, Jack, Lucia, Luke, Luca, Amy, Kim, Pat, Lee, Joe, Nic, Mari, Marc, Mark, Mike, Anna, Cate, Pina, Rosa, Rino, Drew, Gail, Gina, Gino, Lisa, Luci, Lucy, and Lucas