Family name Guzzardo (Guzzardo 
) , in the world, is quite a rare last name. The cognomen Guzzardo is habitual in Italy, where it is a rare surname, Argentina, and the United States. Very seldom, Guzzardo is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Guzzardo | Germany, China, Italy, United States, Argentina |
| buster guzzardo American politician, US (b. 1923) |
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| rogelio antonio guzzardo correspondence chess player |
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| vincenza guzzardo researcher |
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| mariana t guzzardo researcher |
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