This list of 1973 motorsport champions is a list of national or international auto racing series with a Championship decided by the points or positions earned by a driver from multiple races.

Open wheel racing

Series	Driver	Season article
Formula One World Championship	Jackie Stewart	1973 Formula One season
	Constructors: Lotus-Ford
USAC National Championship	Roger McCluskey	1973 USAC Championship Car season
European Formula Two Championship	Jean-Pierre Jarier	1973 European Formula Two season
Tasman Series	Graham McRae	1973 Tasman Series
Australian Drivers' Championship	John McCormack	1973 Australian Drivers' Championship
Australian Formula 2 Championship	Leo Geoghegan
Australian Formula Ford Series	John Leffler

Sports car

Series	Driver	Season article
World Sportscar Championship	Class S: Matra Class GT: Porsche	1973 World Sportscar Championship season
Canadian American Challenge Cup	Mark Donohue	1973 Can-Am season
Australian Sports Car Championship	Phil Moore
IMSA GT Championship	Peter Gregg	1973 IMSA GT Championship season

Touring car

Series	Driver	Season article
European Touring Car Championship	Toine Hezemans
Australian Touring Car Championship	Allan Moffat	1973 Australian Touring Car Championship

Stock car racing

Series	Driver	Season article
NASCAR Grand National Series	Benny Parsons	1973 NASCAR Winston Cup Series
NASCAR Grand Sport Series		1973 NASCAR Grand Sport Series

Drag racing

Rallying

Series	Driver/Co-Driver	Season article
World Rally Championship	Alpine-Renault	1973 World Rally Championship season
Australian Rally Championship	Peter Lang W Smith

Motorcycle

Series	Rider	Season article
500cc World Championship	Phil Read	1973 Grand Prix motorcycle racing season
350cc World Championship	Giacomo Agostini
250cc World Championship	Dieter Braun
125cc World Championship	Kent Andersson
50cc World Championship	Jan de Vries
Speedway World Championship	Jerzy Szczakiel	1973 Individual Speedway World Championship

See also

• List of motorsport championships
• Auto racing