| Mario Marchegiani | |
| Birth Date: | 1917 11, df=yes |
| Birth Place: | Frosinone, Kingdom of Italy |
| Position: | Midfielder |
| Years1: | 1933–1934 |
| Years2: | 1934–1937 |
| Years3: | 1937–1938 |
| Clubs3: | Sanremese |
| Caps2: | 5 |
| Caps3: | 13 |
| Goals2: | 0 |
| Goals3: | 3 |
Mario Marchegiani (born 27 November 1917) was an Italian professional football player.[1]
Marchegiani played for 2 seasons (5 games) in the Serie A for A.S. Roma.