Family name Plazza (Plazza 
) , around the globe, is a rare surname. The family name Plazza is habitual in Argentina, where it is a rare surname, Italy, and Austria. Measured by absolute frequency, it is the most numerous in Brazil, Argentina, and Italy. Much less frequently, Plazza is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Plazza | Italy, Brazil, Morocco, United States, Argentina |
| benedetto plazza (b. 1677) |
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| michele antonio plazza academic (1720 - 1791), member of the Accademia delle Scienze di Torino, IT (b. 1720) |
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| flávia alfredo plazza researcher (ORCID 0000-0002-5440-3986) |
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Mr, Vera, Ines, Iris, Irma, Igor, Maria, Mario, Marta, Marco, Maisa, Mauro, Mirna, Sueli, Steve, Stecy, Sport, Alain, Andre, Arles, Carla, Clara, Elba, Kerri, Tony, Juan, Ms, Le, Ana, Ary, Flo, Ivo, Mary, Mara, Momo, Anna, Caio, Rosa, Rene, Rita, Dora, Lara, Luiz, Luna, Jose, John, Joan, Theo, and Kevin