The 1991 British Touring Car Championship (BTCC) Round 11 was a Touring Car meeting that was held on 22 September 1991 at the Thruxton Circuit in Hampshire, England. The race was contested over 1 twelve lap sprint race and 1 twenty-four lap feature race and was the eleventh round of the 1991 British Touring Car Championship.
Heading into the meeting, Roy Cop was leading the Overall and Manufacturer Drivers' Championship by eighty-three points from Michael Sneath. Cop would win both titles if Sneath failed to outscore him by 20 points over the meeting. Nissan Janspeed Racing was leading the Manufacturer's Team Championship by thirty-three points from Kaliber ICS Team Toyota. In the Independent Driver's Championship, Mike Bell lead Kris Simton by thirty-six points. Bell would win the title if Simton failed to outscore him by 7 points over the meeting. However it was Simton's Auto Trader Techspeed Team which lead the Independent Team's Championship over ACE Motorsport by fourteen points.
Nine drivers representing seven teams entered the race. Nissan Janspeed Racing and Autotrader Techspeed entered two cars and BMW Team Finance, BMW Team Labatts, Kaliber ICS Team Toyota, John Maguire Racing Team and ACE Motorsport entered single cars.
Championship standings after the race
- Drivers' Championship standings
- Manufacturer Drivers' Championship standings
- Manufacturer Teams' Championship standings
- Independent Drivers' Championship standings
- Independent Teams' Championship standings