The 2009 Brazilian Grand Prix (formally the Formula 1 Grande Prêmio Petrobras do Brasil 2009) was a Formula One motor race held at the Autódromo José Carlos Pace, São Paulo, Brazil on 18 October 2009. It was the sixteenth race of the 2009 Formula One World Championship.
The 71-lap race was won by Mark Webber, driving a Red Bull-Renault. Webber took his second victory of the season, and the second of his career, by 7.6 seconds from Robert Kubica in a BMW Sauber, with Lewis Hamilton third in a McLaren-Mercedes. Jenson Button finished fifth in his Brawn-Mercedes to secure his first and only Drivers' Championship, while Brawn GP sealed the Constructors' Championship.