Cognomen Calamusa (Calamusa 
) , in the entire world, is a rare surname. The family name Calamusa is habitual in Italy, where it is a rare surname, Canada, where it is a very rare surname, and the United States. Measured by absolute frequency, it is commonest in Italy, the United States, and France.
| VARIANT | COUNTRY |
|---|---|
| Calamusa | Germany, Canada, France, United States, Italy |
| giuseppe calamusa researcher |
|
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| marylene calamusa (b. 1980) |
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