The FISA–FOCA war was a political battle contested throughout the early 1980s by two now-defunct representative organizations in Formula One motor racing, the Fédération Internationale du Sport Automobile (FISA) and the Formula One Constructors Association (FOCA). The battle boiled during the late 1970s and early 1980s and came to a head when the racing teams affiliated with FOCA, an equivalent to a racing team union, boycotted the 1982 San Marino Grand Prix.

Formula One, commonly known as Formula 1 or F1, is the highest class of international racing for open-wheel single-seater formula racing cars sanctioned by the Fédération Internationale de l'Automobile (FIA). The FIA Formula One World Championship has been one of the world's premier forms of racing since its inaugural running in 1950. The word formula in the name refers to the set of rules all participants' cars must follow. A Formula One season consists of a series of races, known as Grands Prix. Grands Prix take place in multiple countries and continents on either purpose-built circuits or closed public roads.