The 1986 FIA Formula One World Championship was the 40th season of FIA Formula One motor racing. It featured the 1986 Formula One World Championship for Drivers and the 1986 Formula One World Championship for Manufacturers, both of which commenced on 23 March and ended on 26 October after sixteen races. The Drivers' Championship was won by Alain Prost, and the Manufacturers' Championship was won by Williams. Prost was the first driver to win back-to-back Drivers' Championships since Jack Brabham in 1959 and 1960.