The 2014 Brazilian Grand Prix (formally the Formula 1 Grande Prêmio Petrobras do Brasil 2014) was a Formula One motor race held on 9 November at the Autódromo José Carlos Pace in São Paulo. It was the 18th and penultimate round of the 2014 Formula One World Championship and the 42nd Brazilian Grand Prix as part of the series. Mercedes driver Nico Rosberg won the 71-lap race from pole position. His teammate Lewis Hamilton finished second and local Williams driver Felipe Massa was third. It was Rosberg's fifth victory of the season and the eighth of his career.

Going into the race, Hamilton led the World Drivers' Championship from Rosberg while their team Mercedes had already won the World Constructors' Championship at the Russian Grand Prix. Rosberg won the pole position by setting the fastest lap in qualifying and maintained the lead until his first pit stop at the end of lap seven. Nico Hülkenberg led after Hamilton's lap eight pit stop and held it until Rosberg overtook him six laps later. Hamilton returned to the lead when Rosberg made a second pit stop 12 laps later but a spin at turn four during the extra lap he was on the track lost him the position. On blistered front tyres, Hamilton remained close by Rosberg by the time of the third cycle of pit stops but Rosberg held off his teammate to win the race.

The result allowed Rosberg to lower Hamilton's lead in the World Drivers' Championship to 17 championship points while Daniel Ricciardo secured third place despite retiring with a suspension issue. Sebastian Vettel and Fernando Alonso each gained one position to move into fourth and fifth places. Mercedes increased their unassailable lead in the World Constructors' Championship to 278 championship points over Red Bull Racing with one race left in the season.

The 2014 Brazilian Grand Prix was the 18th of the 19 rounds in the 2014 Formula One World Championship and the 42nd running of the event as part of the series. It was held on 9 November at the 4.309 km (2.677 mi) 15-turn Autódromo José Carlos Pace in São Paulo. As they were at the United States Grand Prix the week before, Formula One's commercial rights owner Bernie Ecclestone granted Caterham and Marussia dispensation to miss the race due to their ongoing financial struggles coupled with the high cost of travel to the western hemisphere and the one-week gap between the United States and Brazilian Grand Prix. The drag reduction system (DRS) had two activation zones for the race: one was on the straight linking turns three and four and the second was on the straight linking the final and first corners. The event's official name was the Formula 1 Grande Prêmio Petrobras do Brasil 2014.

Before the race, Mercedes driver Lewis Hamilton led the World Drivers' Championship with 316 championship points, 24 ahead of teammate Nico Rosberg in second and Daniel Ricciardo third. Valtteri Bottas was fourth with 155 championship points, six ahead of Sebastian Vettel in fifth. While the Drivers' Championship had not been won, Mercedes taken the World Constructors' Championship at the Russian Grand Prix. Red Bull ensured they would finish second, while Williams with 238 championship points were third, Ferrari with 196 were fourth and McLaren fifth. With the introduction of double points for the season-ending Abu Dhabi Grand Prix, the Drivers' Championship could not be won in Brazil as Hamilton winning and Rosberg scoring no championship points would keep Rosberg in mathematical contention by being 49 championship points behind Hamilton.

In mid-2014, the track was resurfaced in an effort to reduce its bumpiness and the pit lane was re-profiled with the entry brought forward off the racing line at the Arquibancadas corner and a chicane added to the pit lane to further slow cars following a series of accidents in national races. The pit lane exit was moved further away from the track to allow for a run-off area to the left of turn two. In addition, in response to Jules Bianchi's crash in the Japanese Grand Prix, procedures relating to the location of a tractor crane at the Senna "S" chicane were altered. Pirelli originally nominated the orange-banded Hard and white-banded Medium tyres, as it had done since 2012. However, following the Russian Grand Prix one month prior, many drivers criticised the low level of grip and wear shown on the new tarmac of the Sochi Autodrom. Since the Autódromo José Carlos Pace was completely repaved, there was concern that the hard compound would be "very dangerous". Along with unanimous agreement from all 11 teams, Pirelli ultimately decided to bring the Medium and yellow-banded Soft tyres to Brazil.

During practice, the sport's governing body, the Fédération Internationale de l'Automobile (FIA) re-tested its Virtual Safety Car system, which was proposed for the 2015 season to better deal with race track emergencies, following the incident suffered by Bianchi in the Japanese Grand Prix. Changes made to this system, relative to the version first tested in the United States, satisfied the drivers. There were driver changes for the first practice session. Deutsche Tourenwagen Masters (DTM) racer Daniel Juncadella replaced Sergio Pérez at Force India for the third time in 2014, while GP2 Series competitor Felipe Nasr used Bottas's car, and the Formula Three European Championship third-place finisher Max Verstappen drove Jean-Éric Vergne's Toro Rosso car.

There were three practice sessions—two 90-minute sessions on Friday and another one-hour session on Saturday—preceding Sunday's race. Rosberg was fastest in the first session, which took place in dry and warm weather, with a lap of 1:12.764 two-tenths of a second faster than teammate Hamilton in second. Daniil Kvyat, Fernando Alonso, Felipe Massa, Verstappen, Pastor Maldonado, Kimi Räikkönen, Kevin Magnussen and Ricciardo occupied positions three to ten. During the session, where drivers struggled with grip on the resurfaced track, Juncadella was under mental strain because of his competing in DTM with Mercedes-Benz and spun at turn six. He lost control of his car's rear, hitting the turn eight barrier, damaging his car's nose cone and suspension, and stopping the session. Force India replaced several engine hydraulic components following a heat soak and Pérez missed the second session. Jenson Button was unable to participate when he stopped at the pit lane entry with an energy recovery system failure. Esteban Gutiérrez was also not able to record a lap because of engine electrical issues.