Family name Ciaglia (Ciaglia 
) , throughout the world, is quite a rare cognomen. The cognomen Ciaglia is characteristic of Italy, where it is quite a rare surname, Australia, where it is a rare surname, and Argentina. Measured by absolute frequency, it is the most numerous in Italy, the United States, and Argentina.
| VARIANT | COUNTRY |
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| Ciaglia | South Africa, Italy, Australia, United States, Argentina |
| manlio italo ciaglia Italian politician (1910-2003), IT (b. 1910) |
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| joe ciaglia president of California Skateparks |
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| antonio ciaglia researcher |
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| elena ciaglia Italian oncologist and endocrinologist, IT (b. 1982) |
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| tania ciaglia |
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| sarah ciaglia |
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Ed, Rosy, Rich, Rita, Ruth, Dave, Dora, Gina, Lara, Lina, Lori, Luca, Lupo, Lynn, Léo, Jose, John, Joan, Joey, Tara, Tony, Nick, Ross, Raul, Paul, Chaz, Sue, Ana, Ann, Ada, Ava, Pat, Rob, Ron, Dan, Don, Eric, Leo, Joe, Ida, Ugo, Marc, Mary, Mark, Matt, Savy, Anna, Anne, Liz, and Vita