Cognomen Castellazzo (Castellazzo 
) , in the entire world, is a rare surname. The last name Castellazzo is habitual in Italy, where it is a rare surname, Argentina, where it is a very rare surname, and France. Not in comparison with a country's population, this name is the most popular in Italy, Argentina, and Brazil. Very seldom, Castellazzo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Castellazzo | Italy, United States, Argentina, France, Brazil |
| moses dal castellazzo (b. 1467) |
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| luigi castellazzo Italian politician (1827-1890), IT (b. 1827) |
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| mosè da castellazzo |
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Mr, Matteo, Miguel, Sophie, Andrea, Arthur, Cleusa, Benoit, Denise, Giulio, Joanne, Edward, Ilaria, Marcelo, Michela, Alberto, Antonio, Anthony, Rolando, Larissa, Lorenzo, Viviana, Marcos, Tiago, Jorge, Jared, Ana, Lia, Marc, Anna, Leah, Luca, Jose, Juan, Eric, Maria, Zelanda, Marco, Avril, Carla, Paola, Grace, Laura, Leile, Lucia, Lucio, Lucas, Luigi, Marni, and Mauricio