| Mario Prosperi | |
| Fullname: | Mario Prosperi |
| Birth Date: | 1945 8, df=yes |
| Birth Place: | Switzerland |
| Nationalteam1: | Switzerland |
Mario Prosperi (born 4 August 1945 in Melide) is a retired Swiss football goalkeeper.
He got 21 caps for Switzerland between 26 May 1965 and 9 May 1973. He was an unused substitute at the 1966 World Cup. He played in qualifying games for both the 1970 FIFA World Cup and 1974 FIFA World Cup.