| Amaldo Deserti | |
| Nationality: | Italian |
| Birth Date: | 18 April 1979 |
| Birth Place: | Genoa, Italy |
| Height: | 1.89 m |
| Weight: | 100 kg |
| L/R: | right |
| Currentnumber: | 12 |
| Nationalyears1: | 2011 |
| Nationalteam1: |  Italy |
Arnaldo Deserti (born 1 April 1979) is an Italian water polo player.
Born at Genoa, he currently plays for Rari Nantes Bogliasco and the Italian water polo national team.
He won the gold medal at the 2011 FINA World Aquatics Championships in Shanghai.