The 1979 World Sportscar Championship season was the 27th season of FIA World Sportscar Championship racing. It featured the 1979 World Championship for Makes which was open to Group 1 and 2 Touring Cars, Group 3 and 4 Grand Touring cars, and Group 5 Special Production Cars. The championship ran from 3 February to 16 September 1979 and consisted of nine rounds. It was contested in two engine capacity divisions, Over 2 Litres and Under 2 Litres.
The Over 2 Litres Division was won by Porsche and the Under 2 Litres Division by Lancia.