The 1973 RAC British Saloon Car Championship was the 16th season of the championship. Frank Gardner became the second driver to win three BTCC titles, driving a Chevrolet Camaro.^[1][2]

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

Round		Circuit	Date	Class A Winner	Class B Winner	Class C Winner	Class D Winner
1		Brands Hatch, Kent	18 March	Les Nash	Vince Woodman	Dave Brodie	Frank Gardner
2		Silverstone Circuit, Northamptonshire	8 April	Bill McGovern	Vince Woodman	Andy Rouse	Brian Muir
3		Thruxton Circuit, Hampshire	23 April	Melvyn Adams	Peter Hanson	Dave Brodie	Frank Gardner
4		Thruxton Circuit, Hampshire	28 May	James Burrows	Peter Hanson	Dave Brodie	Frank Gardner
5		Silverstone Circuit, Northamptonshire	14 July	Bill McGovern	Vince Woodman	Jonathan Buncombe	Frank Gardner
6		Ingliston, Edinburgh	19 August	Les Nash	Peter Hanson	Jonathan Buncombe	Frank Gardner
7*	A	Brands Hatch, Kent	22 August	Not contested.	Vince Woodman	Andy Rouse	Frank Gardner
	B			Bill McGovern	Not contested.
8		Silverstone Circuit, Northamptonshire	23 September	Bill McGovern	Peter Hanson	Jose de Uriarte Hervé le Guellec	Derek Bell Harald Ertl
9		Brands Hatch, Kent	21 October	Les Nash	Vince Woodman	Andy Rouse	Brian Muir

• Group 1 cars raced alongside Class A at round 7. Holman 'Les' Blackburn won the class.

Driver's championship
Pos.	Driver	Car [3]	Points
1	Frank Gardner	Chevrolet Camaro Z28	66
2	Andy Rouse	Ford Escort RS 1600	45
3	Peter Hanson	Ford Escort 1300 BDA	45
4	Vince Woodman	Ford Escort 1300 BDA	43