The 1957 Formula One season was the 11th season of FIA Formula One motor racing. It featured the 1957 World Championship of Drivers, which commenced on 13 January and ended on 8 September after eight races. Juan Manuel Fangio won his fourth consecutive title, his fifth in total, in his final championship.

Fangio chose to switch teams again, joining Maserati before the start of the season. The decision to switch proved to be a masterstroke, with Ferrari's line-up of Peter Collins, Eugenio Castellotti and the returning Mike Hawthorn failing to win a race. Castellotti and Alfonso de Portago were killed during the season (neither in Formula One crashes), making this a truly disastrous year for Ferrari.

The man Fangio replaced at Maserati, Stirling Moss, moved to Vanwall, a team beginning to fulfill their promise. Between them, Fangio and Moss won every championship race of the season except the Indianapolis 500, with Fangio taking four victories to Moss' three. Fangio's drive at the Nürburgring, where he overtook Collins and Hawthorn on the penultimate lap after a pit stop had put him nearly a minute behind, is regarded as a particularly notable one.

At the end of the year, it was announced Fangio would not return for another season. Maserati also pulled out, citing financial reasons. This was also the final year in which points were awarded for shared drives.