| Type: | NC |
| Country: | Italy |
| Grand Prix: | Valentino |
| Date: | 27 March |
| Year: | 1955 |
| Official Name: | VII Gran Premio del Valentino |
| Location: | Parco del Valentino, Turin |
| Course: | Temporary Street Circuit |
| Course Mi: | 2.609 |
| Course Km: | 4.185 |
| Distance Laps: | 90 |
| Distance Mi: | 234.810 |
| Distance Km: | 376.635 |
| Pole Driver: | Alberto Ascari |
| Pole Country: | ITA |
| Pole Team: | Lancia D50 |
| Pole Time: | 1:42.0 |
| Fast Driver: | Jean Behra |
| Fast Team: | Maserati 250F |
| Fast Time: | 1:43.1 |
| Fast Country: | FRA |
| First Driver: | Alberto Ascari |
| First Country: | ITA |
| First Team: | Lancia D50 |
| Second Driver: | Roberto Mieres |
| Second Country: | ARG |
| Second Team: | Maserati 250F |
| Third Driver: | Luigi Villoresi |
| Third Country: | ITA |
| Third Team: | Lancia D50 |
The 1955 Gran Premio del Valentino was a non-championship Formula One motor race held on 27 March 1955 at the Parco del Valentino in Turin. The Grand Prix was won by Alberto Ascari driving a Lancia D50; Ascari also set pole position. Roberto Mieres in a Maserati 250F finished second and Luigi Villoresi in a Lancia D50 was third. Maserati driver Jean Behra set fastest lap.[1] [2]
This was the last motor race to be held at the Parco del Valentino.[3]
| Pos | No | Driver | Entrant | Car | Time/Retired | Grid | |
|---|---|---|---|---|---|---|---|
| 1 | 6 |  Alberto Ascari | Scuderia Lancia | Lancia D50 | 2:40:21.2, 87.86mph | 1 | |
| 2 | 32 |  Roberto Mieres | Officine Alfieri Maserati | Maserati 250F | +27.1s | 5 | |
| 3 | 30 | Luigi Villoresi | Scuderia Lancia | Lancia D50 | +1:44.2 | 6 | |
| 4 | 22 | Eugenio Castellotti | Scuderia Lancia | Lancia D50 | +1:44.8 | 8 | |
| 5 | 20 |  Harry Schell | Scuderia Ferrari | Ferrari 625 | +3 laps | 9 | |
| 6 | 36 | Louis Rosier | Equipe Rosier | Maserati 250F | +11 laps | 12 | |
| 7 | 26 | Berardo Taraschi | Berardo Taraschi | Ferrari 166 | +11 laps | 14 | |
| 8 | 18 |  Maurice Trintignant | Scuderia Ferrari | Ferrari 625 | +15 laps, rear axle | 7 | |
| 14 | 20 | B. Bira | Prince Bira | Maserati 250F | +24 laps | 13 | |
| Ret | 12 | Lorenzo Girard | Lorenzo Girard | Ferrari 500 | 44 laps, mechanical | 15 | |
| Ret | 10 |  Alfonso de Portago | Marquis de Portago | Ferrari 625 | 34 laps, sump | 11 | |
| Ret | 34 | Luigi Musso | Officine Alfieri Maserati | Maserati 250F | 21 laps, oil leak | 3 | |
| Ret | 8 | Jean Behra | Officine Alfieri Maserati | Maserati 250F | 12 laps, suspension | 2 | |
| Ret | 24 | Cesare Perdisa | Officine Alfieri Maserati | Maserati 250F | 12 laps, suspension | 10 | |
| DNS | 4 | Sergio Mantovani | Officine Alfieri Maserati | Maserati 250F | Crash | - | |
| DNA | 16 |  Ottorino Volonterio | Ottorino Volonterio | Maserati A6GCM | Car not ready | - | |
| DNA | 28 | Mario Alborghetti | Scuderia Volpini | Maserati 4CLT/48 | Car not ready | - |