1981 British Saloon Car Championship

The 1981 RAC Tricentrol British Saloon Car Championship was the 24th season of the championship. Win Percy won his second consecutive drivers title in his Mazda RX-7.

Calendar and winners
All races were held in the United Kingdom. Overall winners in bold.

Drivers' Championship
Points were awarded on a 9, 6, 4, 3, 2, 1 basis to the top six finishers in each class, with one bonus point for the fastest lap in each class. In races where a class had less than four starters, points would be awarded to the top two finishers (6 & 4 respectively) with one point for the fastest lap. A driver's best nine scores counted towards the championship, dropped scores are shown in brackets. Positions are shown as overall/class.

Notes:
 * 1. – Class A pole position for round 2 is unknown.
 * 2. – Class A & B pole positions for round 3 are unknown.