2012 British Touring Car Championship season

The 2012 Dunlop MSA British Touring Car Championship was a multi-event motor racing championship for production-based touring cars held across England and Scotland. The championship features a mix of professional motor racing teams and privately funded amateur drivers competing in highly modified versions of family cars which are sold to the general public and conform to the technical regulations for the championship. It is one of the most popular domestic motor racing series in the United Kingdom, with an extensive program of support categories built up around the BTCC centrepiece. It was the 55th British Touring Car Championship (BTCC) season.

This was the second season that cars conforming to the Next Generation Touring Car (NGTC) specification were allowed to compete and the third and final season of the phased transition from the Super 2000 specification. The season will see teams compete with car chassis built to either NGTC or S2000 specification. All teams had to use the NGTC turbocharged engine. The phased transition from S2000 to NGTC means that the organising body, , will maintain a performance equalisation between the two chassis specifications. They achieved this by monitoring the turbo boost pressures of all cars throughout the season, adjusting the pressure levels after every two rounds to maintain performance parity between all cars. The amount the turbo was adjusted was determined via a mathematical calculation based on race performance. The season was also be the first season without cars built to the BTC Touring specification since 2000. A revised championship points system was introduced for the 2012 season, in which the top 15 cars scored championship points instead of the top 10 previously.

2011 series champion Matt Neal defended his title along with Honda, who defended and retained both the Teams' and Manufacturers' championships. Reigning Independent Drivers' champion James Nash didn't defend his title after graduating into the World Touring Car Championship. Triple Eight Race Engineering were the reigning Independent Teams' champions, but as they entered with returning manufacturer MG, they were ineligible to defend the Independents' championship.

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