The 1984 Trimoco British Saloon Car Championship was the 27th season of the championship. The title was won by Andy Rouse in a Rover Vitesse, claiming his third BSCC title.
All races were held in the United Kingdom. Overall winners in bold.
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. A driver's best nine scores counted towards the championship, dropped scores are shown in brackets. Positions are shown as overall/class.
Bold - Pole in class
Italics - Fastest lap in class