| Competition: | Serie A |
| Winners: | Juventus 18th title |
| Dates: | 11 September 1977 – 7 May 1978 |
| Relegated: | Genoa Foggia Pescara |
| Continentalcup1: | European Cup |
| Continentalcup1 Qualifiers: | Juventus |
| Continentalcup3: | UEFA Cup |
| Continentalcup3 Qualifiers: | Vicenza Torino Milan Napoli |
| Continentalcup2: | Cup Winners' Cup |
| Continentalcup2 Qualifiers: | Internazionale |
| Season: | –78 |
| League Topscorer: | Paolo Rossi (24 goals) |
| Matches: | 240 |
| Total Goals: | 512 |
| Prevseason: | 1976–77 |
| Nextseason: | 1978–79 |
The 1977–78 Serie A season was won by Juventus.
Vicenza, Atalanta and Pescara had been promoted from Serie B.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 |  Paolo Rossi | Vicenza | 24 |
| 2 | Giuseppe Savoldi | Napoli | 16 |
| 3 | Bruno Giordano | Lazio | 12 |
| Paolo Pulici | Torino | ||
| 5 | Roberto Bettega | Juventus | 11 |
| Francesco Graziani | Torino | ||
| 7 | Alessandro Altobelli | Internazionale | 10 |
| Agostino Di Bartolomei | Roma | ||
| Roberto Boninsegna | Juventus | ||
| 10 | Roberto Pruzzo | Genoa | 9 |
| Emiliano Mascetti | Hellas Verona | ||
| Carlo Muraro | Internazionale | ||
| 13 | Aldo Maldera | Milan | 8 |
| Walter Speggiorin | Perugia |