| Competition: | Serie A |
| Season: | 1956–57 |
| Winners: | Milan 6th title |
| Relegated: | Triestina Palermo |
| Continentalcup1: | European Cup |
| Continentalcup1 Qualifiers: | Milan |
| League Topscorer: | Dino da Costa (22 goals) |
| Matches: | 306 |
| Total Goals: | 845 |
| Prevseason: | 1955–56 |
| Nextseason: | 1957–58 |
The 1956–57 Serie A season was won by Milan.
Udinese and Palermo had been promoted from Serie B.
