| Marsilio Rossi | |
| Nationality: | Italian |
| Sport: | Sprinting |
| Event: | 4 × 400 metres relay |
| Birth Date: | 3 August 1916 |
| Birth Place: | Rio de Janeiro, Brazil |
| Death Place: | Filonovo, Soviet Union |
Marsilio Rossi (3 August 1916 - 16 December 1942) was an Italian sprinter. He competed in the men's 4 × 400 metres relay at the 1936 Summer Olympics.[1] He was killed in action during World War II.[2]