This list of 1978 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	Mario Andretti	1978 Formula One season
	Constructors: Lotus-Ford
USAC National Championship	Tom Sneva	1978 USAC Championship Car season
European Formula Two Championship	Bruno Giacomelli	1978 European Formula Two season
Formula Three
FIA European Formula 3 Championship	Jan Lammers	1978 FIA European Formula 3 Championship
German Formula Three Championship	Bertram Schäfer	1978 German Formula Three Championship

Sports car

Series	Driver	Season article
World Sportscar Championship	Porsche	1978 World Sportscar Championship season
IMSA GT Championship	Peter Gregg	1978 IMSA GT Championship season

Touring car

Series	Driver	Season article
European Touring Car Championship	Umberto Grano
Australian Touring Car Championship	Peter Brock	1978 Australian Touring Car Championship

Stock car racing

Series	Driver	Season article
NASCAR Grand National Series	Cale Yarborough	1978 NASCAR Winston Cup Series

Rallying

Series	Driver	Season article
World Rally Championship	FIAT	1978 World Rally Championship season
FIA Cup for Rally Drivers	Markku Alén

Motorcycle

Series	Driver	Season article
500cc World Championship	Kenny Roberts	1978 Grand Prix motorcycle racing season
350cc World Championship	Kork Ballington
250cc World Championship
125cc World Championship	Eugenio Lazzarini
50cc World Championship	Ricardo Tormo
Speedway World Championship	Ole Olsen	1978 Individual Speedway World Championship
AMA Superbike Championship	Reg Pridmore

See also

• List of motorsport championships
• Auto racing