Family name Guarnera (Guarnera 
) , across the world, is quite a rare cognomen. The cognomen Guarnera is characteristic of Italy, where it is quite a rare surname, Argentina, where it is a rare surname, and Switzerland. Measured by absolute frequency, the name is most common in Italy, the United States, and Argentina. Much less frequently, Guarnera is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Guarnera | Italy, Switzerland, Argentina, United States, Germany |
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mario guarnera Italian singer-songwriter, IT (b. 1949) |
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| aldo guarnera CH (b. 1937) |
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| edoardo guarnera Italian singer, IT (b. 1960) |
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| enrico guarnera researcher |
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| simone guarnera researcher |
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| giuseppe claudio guarnera researcher, ORCID id # 0000-0002-7703-5194 |
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Mr, Cody, Kirk, Pina, Raul, Rosa, Rose, Ross, Rosy, Rich, Rick, Rino, Rita, Ruth, Deny, Dana, Dave, Dawn, Drew, Gail, Gaia, Gino, Cali, Leon, Aida, Anna, Ms, Sal, Ana, Rob, Ron, Roe, Dee, Joe, Jim, Tom, Ebe, Ugo, Mary, Mark, Melo, Sara, Sean, Alex, Alan, Aldo, Andy, Anne, and Lily