The 2003 Hungarian Grand Prix was a Formula One motor race held on 24 August 2003 at the Hungaroring, Mogyoród, Pest. It was the thirteenth round of the 2003 Formula One season.

The race was won by Renault's Fernando Alonso after starting from pole position, scoring his first F1 win and becoming at the time the youngest ever driver to win a Grand Prix, beating the previous record of Bruce McLaren. This record lasted for over five years until it was beaten by Sebastian Vettel at the 2008 Italian Grand Prix. Alonso also became the first Spaniard to win an F1 Grand Prix. It was the first Formula One win for Renault as a constructor since the 1983 Austrian Grand Prix.

It was the first to be held under the newly revamped Hungaroring, with the main straight lengthened and the first hairpin tightened, as well as further alterations near the latter stages of the lap in order to encourage more overtaking.