List of 1975 motorsport champions

This list of 1975 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.

Series	Driver	Season article
Formula One World Championship	Niki Lauda	1975 Formula One season
	Constructors: Ferrari
USAC National Championship	A. J. Foyt	1975 USAC Championship Car season
European Formula Two Championship	Jacques Laffite	1975 European Formula Two Championship
European Formula 5000 Championship	Teddy Pilette	1975 ShellSPORT 5000 European Championship
Tasman Series	Warwick Brown	1975 Tasman Series
Atlantic Championship Series	Bill Brack	1975 Formula Atlantic season
Australian Drivers' Championship	John McCormack	1975 Australian Drivers' Championship
Australian Formula 2 Championship	Geoff Brabham	1975 Australian Formula 2 Championship
Australian Formula Ford Series	Paul Bernasconi	TAA Formula Ford Driver to Europe Series
SCCA Continental Championship	Brian Redman	1975 SCCA/USAC Formula 5000 Championship
Formula Three
FIA European Formula 3 Championship	Larry Perkins	1975 FIA European Formula 3 Cup
British Formula Three Championship	Gunnar Nilsson	1975 British Formula Three season
German Formula Three Championship	Ernst Maring	1975 German Formula Three Championship

Series	Driver	Season article
World Sportscar Championship	Class S: Alfa Romeo	1975 World Sportscar Championship
	Class GT: Porsche
Australian Sports Car Championship	Garrie Cooper	1975 Australian Sports Car Championship
IMSA GT Championship	Peter Gregg	1975 IMSA GT Championship

Series	Driver	Season article
NASCAR Winston Cup Series	Richard Petty	1975 NASCAR Winston Cup Series

Series	Driver	Season article
European Touring Car Championship	Siegfried Müller Sr. Alain Peltier	1975 European Touring Car Championship
Australian Manufacturers' Championship	Holden	1975 Australian Manufacturers' Championship
Australian Touring Car Championship	Colin Bond	1975 Australian Touring Car Championship
British Saloon Car Championship	Andy Rouse	1975 British Saloon Car Championship

Series	Driver	Season article
World Rally Championship	Lancia	1975 World Rally Championship season
Australian Rally Championship	Ross Dunkerton	1975 Australian Rally Championship
	Co-Drivers: John Large

Series	Driver	Season article
500cc World Championship	Giacomo Agostini	1975 Grand Prix motorcycle racing season
350cc World Championship	Johnny Cecotto
250cc World Championship	Walter Villa
125cc World Championship	Paolo Pileri
50cc World Championship	Ángel Nieto
Formula 750	Jack Findlay	1975 Formula 750 season
Speedway World Championship	Ole Olsen	1975 Individual Speedway World Championship

Series	Driver	Season article
FIM Motocross World Championship	500cc: Roger De Coster	1975 FIM Motocross World Championship
	250cc: Harry Everts
	125cc: Gaston Rahier

• List of motorsport championships
• Auto racing