Family name Allegretta (Allegretta 
) , throughout the world, is a rare cognomen. The surname Allegretta is habitual in Italy, where it is a rare surname, Argentina, and Australia. In absolute terms, it is commonest in Italy, the United States, and Argentina. Much less frequently, Allegretta is the forename as well as the last name.
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| Allegretta | Australia, Argentina, Italy, Germany, United States |
| chris allegretta author and former maintainer of the GNU Nano text editor |
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| maddalena allegretta researcher |
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| ignazio allegretta researcher |
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Mr, Gina, Lisa, Lois, Jane, Jose, John, Tony, Teri, Tina, Nico, Nick, Nora, Elio, Eric, Enza, Vito, Igia, Maria, Mario, Marta, Marco, Gian, Manny, Gary, Dora, Max, Mia, Ana, Amy, Ada, Kim, Mary, Mark, Mike, Sara, Alex, Andy, Anna, Anne, Adam, Paul, Pina, Phil, Rosa, Rich, Rino, Drew, and Mauro