| Dario Ambrosini | |
| Nationality: | Italian |
| Gp Active Years: | 1949 - 1951 |
| Gp Teams: | Benelli |
| Gp Race Starts: | 8 |
| Gp Championships: | 250cc - 1950 |
| Gp Race Wins: | 5 |
| Gp Podiums: | 8 |
| Gp Total Points: | 57 |
| Gp Poles: | 0 |
| Gp Fastest Laps: | 0 |
| Gp First Race: | 1949 250cc Swiss Grand Prix |
| Gp Last Win: | 1951 250cc Swiss Grand Prix |
| Gp Last Race: | 1951 Isle of Man 250cc Lightweight TT |
| Tt Contested: | 3 (1949 - 1951) |
| Tt Wins: | 1 |
| Tt First Win: | 1950 Lightweight TT |
| Tt Last Win: | 1950 Lightweight TT |
| Tt Podiums: | 2 |
Dario Ambrosini (7 March 1918 in Cesena - 14 July 1951 in Albi) was an Italian Grand Prix motorcycle road racer who competed for the Benelli factory racing team. He finished second to Bruno Ruffo in the inaugural FIM 250cc world championship in 1949. He returned in 1950 and claimed the 250cc world championship with three victories including one at the 1950 Isle of Man TT.[1] [2] Ambrosini was killed during official practice for the 1951 French Grand Prix at Albi.[3]
1949 point system
| Position | width=20 | 1 | width=20 | 2 | width=20 | 3 | width=20 | 4 | width=20 | 5 | width=60 | Fastest lap |
| Points | 10 | 8 | 7 | 6 | 5 | 1 |
| Position | width=20 | 1 | width=20 | 2 | width=20 | 3 | width=20 | 4 | width=20 | 5 | width=20 | 6 |
| Points | 8 | 6 | 4 | 3 | 2 | 1 |
(key) (Races in italics indicate fastest lap)
| Year | Class | Team | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Points | Rank | Wins |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1949 | 250cc | Benelli | IOM NC | SUI 2 | ULS - | NAT 1 | 19 | 2nd | 1 | ||||
| 1950 | 250cc | Benelli | IOM 1 | SUI 1 | ULS 2 | NAT 1 | 24 | 1st | 3 | ||||
| 1951 | 250cc | Benelli | ESP - | SUI 1 | IOM 2 | BEL - | NED - | FRA (†) | ULS - | NAT - | 14 | 3rd | 1 |