| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Mario Giuseppe•Bonini | 
| Used name | Mario Giuseppe•Bonini | 
| Nick/petnames | Gino | 
| Born | 19 August 1897 in Golasecca, Varese (ITA) | 
| Died | in Roma, Roma (ITA) | 
| Affiliations | SG Gallaratese | 
| NOC |   Italy | 
Personal Bests: 800 – 1:57.8 (1922); 1500 – 4:18.0 (1919).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1920 Summer Olympics | Athletics |  ITA | 
Mario Giuseppe Bonini | |||
| 800 metres, Men (Olympic) | 5 h2 r2/3 | |||||
| 1,500 metres, Men (Olympic) | 6 h2 r1/2 | |||||
| 1924 Summer Olympics | Athletics |  ITA | 
Mario Giuseppe Bonini | |||
| 800 metres, Men (Olympic) | 5 h2 r1/3 | |||||
| 4 × 400 metres Relay, Men (Olympic) | Italy |