The 2011 Japanese Grand Prix was a Formula One motor race that was held on 9 October 2011 at the Suzuka Circuit in Suzuka, Japan. It was the fifteenth round of the 2011 Formula One season and the 37th time the Japanese Grand Prix had been held. The 53-lap race was won by McLaren's Jenson Button, after he started from second on the grid. Fernando Alonso finished in second place for Scuderia Ferrari, and Sebastian Vettel completed the podium, with third, for Red Bull Racing.

The 2011 FIA Formula One World Championship was the 65th season of FIA Formula One motor racing. The original calendar for the 2011 Formula One World Championship consisted of twenty rounds, including the inaugural running of the Indian Grand Prix before the cancellation of the Bahrain Grand Prix. Pirelli returned to the sport as tyre supplier for all teams, taking over from Bridgestone, marking their return to Formula One for the first time since the 1991 season. Red Bull Racing was the reigning Constructors' Champion. Red Bull Racing's Sebastian Vettel was the defending Drivers' Champion, one of five World Champions appearing on the grid. Vettel won his second World Championship at the 2011 Japanese Grand Prix, becoming the youngest driver, at 24 years and 98 days, to do so. Red Bull Racing won the Constructors' Championship.