| Mario Bossi | |
| Birth Date: | 1909 1, df=y |
| Birth Place: | Rome, Kingdom of Italy |
| Death Place: | Rome Italy |
| Position: | Midfielder |
| Years1: | 1929–1932 |
| Years2: | 1932–1935 |
| Years3: | 1935–1936 |
| Clubs3: | Lecco |
| Caps1: | 14 |
| Caps2: | 73 |
| Caps3: | 4 |
| Goals1: | 0 |
| Goals2: | 1 |
| Goals3: | 0 |
Mario Bossi (23 January 1909 – 14 January 2003) was an Italian professional football player. He was born in Rome on 23 January 1909, and died there on 14 January 2003, at the age of 93.[1]
Bossi played 4 seasons (22 games, no goals) in the Serie A for A.S. Roma and Sampierdarenese.