The 1982 San Marino Grand Prix was a Formula One motor race held on 25 April 1982 at the Autodromo Dino Ferrari, Imola, Italy. It was the fourth race of the 1982 Formula One World Championship. The race was boycotted by many teams as part of a political war, unrelated to the event itself, involving the two dominant forces within Formula One, the Fédération Internationale du Sport Automobile (FISA) and the Formula One Constructors' Association (FOCA). Only seven teams took part, giving a field of 14 cars.

The race was won by Frenchman Didier Pironi, driving a Ferrari, with Canadian teammate Gilles Villeneuve second and Italian Michele Alboreto third in a Tyrrell-Ford. After the Renaults of René Arnoux and Alain Prost retired, Villeneuve led from Pironi before the Ferrari team ordered both drivers to slow down, with Alboreto far behind. Villeneuve interpreted this as an order to maintain position on the track; Pironi did not and thus overtook Villeneuve on the final lap, infuriating the Canadian to the point that he vowed never to speak to Pironi again. Villeneuve would lose his life in a crash during qualifying for the Belgian Grand Prix two weeks later.