Cognomen Colaizzi (Colaizzi 
) , across the world, is a rare family name. The last name Colaizzi is habitual in Italy, where it is a rare surname, the United States, and Switzerland. Measured by absolute frequency, it is the most numerous in the United States, Italy, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Colaizzi | Italy, Australia, Switzerland, United States, Canada |
| giulia colaizzi (b. 1) |
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| paul d. colaizzi researcher |
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