1955 Formula One season Teams and drivers Teams and drivers

| Entrant | Constructor_ | Chassis | Engine | Tyre | Driver | Rounds |
|---|---|---|---|---|---|---|
| Alberto Uria | Maserati | A6GCM | Maserati 250F1 2.5 L6 | P | Alberto Uria | 1 |
| Scuderia Lancia | Lancia | D50 | Lancia DS50 2.5 V8 | P | Alberto Ascari | 1–2 |
| Scuderia Lancia | Lancia | D50 | Lancia DS50 2.5 V8 | P | Luigi Villoresi | 1–2 |
| Scuderia Lancia | Lancia | D50 | Lancia DS50 2.5 V8 | P | Eugenio Castellotti | 1–2, 4 |
| Scuderia Lancia | Lancia | D50 | Lancia DS50 2.5 V8 | P | Louis Chiron | 2 |
| Equipe Gordini | Gordini | T16 | Gordini 23 2.5 L6 | E | Élie Bayol | 1–2 |
| Equipe Gordini | Gordini | T16 | Gordini 23 2.5 L6 | E | Pablo Birger | 1 |
| Equipe Gordini | Gordini | T16 | Gordini 23 2.5 L6 | E | Jesús Iglesias | 1 |
| Equipe Gordini | Gordini | T16 | Gordini 23 2.5 L6 | E | Robert Manzon | 2, 5–6 |