| Sport: | Water polo |
| Birth Date: | 21 February 1939 |
| Birth Place: | Naples, Italy |
| Death Place: | Naples, Italy |
Luigi Mannelli (21 February 1939 – 14 March 2017) was an Italian water polo player who competed in the 1956 Summer Olympics and in the 1960 Summer Olympics.[1]
In 1956 he was a member of the Italian water polo team which finished fourth in the Olympic tournament. He played one match.
Four years later he won the gold medal with the Italian team in the Olympic tournament, where he played two matches and scored four goals.