Cognomen Nettuno (Nettuno 
) , all over the world, is a rare last name. The last name Nettuno is characteristic of Italy, where it is a rare surname, Netherlands, where it is a very rare surname, and Argentina. Measured by absolute frequency, it is the most numerous in Italy, the United States, and Argentina. Very seldom, Nettuno is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nettuno | Argentina, Germany, Netherlands, United States, Italy |
| donna camilla borghese dei principi di nettuno (born 1962) (b. 1962) |
|
Ana, Mario, Marco, Mauro, Megan, Sarah, Angie, Anita, Chris, Carlo, Carla, Craig, Bagno, Boris, Bruno, Bruna, Katie, Kenny, Paola, Paolo, Rosie, Dario, Maria, Ivan, Hugo, Judy, Ann, Ken, Kim, Ray, Raf, Dan, Mary, Mark, Aldo, Anna, David, Axel, Beth, Rosa, Rick, Dale, Greg, Lara, Lido, Luca, John, Juan, Ciro, and Diana