The 2003 San Marino Grand Prix (formally the Gran Premio Foster's di San Marino 2003) was a Formula One motor race held on 20 April 2003 at the Autodromo Enzo e Dino Ferrari, Imola, Emilia-Romagna, Italy, with the race taking place on Easter Sunday.

As a consequence of the race, Räikkönen increased his lead in the World Drivers' Championship, over teammate David Coulthard to 13 points with Michael Schumacher climbing to third.

[1] At the preceding Brazilian Grand Prix, confusion caused by a red flag at the end of the race led to Räikkönen being declared the winner.

An investigation by Formula One's governing body the FIA in the days following the race proved that Fisichella had been the actual victor.

[7] Williams drivers Ralf Schumacher and Juan Pablo Montoya set the pace in the Friday free practice, which took place in dry and sunny conditions, with a time of 1:21.335.

Michael Schumacher clipped the kerb at the Variante Bassa chicane,[8] damaging the Ferrari's left rear suspension.

[9] In the Saturday afternoon qualifying session, Schumacher clinched his second pole position of the season with a time of 1:22.327.

[17] The Schumacher brothers left the circuit immediately after the podium celebrations and Ferrari team principal Jean Todt took Michael's place at the post-race press conference.

[20] Mercedes motorsport vice-president Norbert Haug expressed sympathy for the Schumacher brothers while also praising them for their performance during the race.

[21] As a consequence of the race, Räikkönen increased his lead in the World Drivers' Championship, over teammate David Coulthard to 13 points with Schumacher climbing to third.