Cognomen Gemmo (Gemmo 
) , globally, is a rare family name. The family name Gemmo is characteristic of Italy, where it is a rare surname, France, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Italy, France, and the United States. Likewise, Gemmo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gemmo | France, United States, India, Philippines, Italy |
| livio gemmo Italian association football player (1898-1968), IT (b. 1898) |
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| c. gemmo researcher |
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