1978 World Sportscar Championship season

The 1978 World Championship for Makes season was the 26th FIA World Sportscar Championship. It was a series running under the Group 5 and GT formulas in Europe, and IMSA GTX and GTO in the United States. Championship points were once again divided amongst engine sizes, but each class winner had points counting toward a single overall championship. It ran from February 4, 1978 to September 3, 1978, and was composed of 8 races.

Manufacturers' championship
Points were awarded to the top 10 finishers in the order of 20-15-12-10-8-6-4-3-2-1. Manufacturers were only given points for their highest finishing car from either of the two classes; any other cars from that manufacturer were merely skipped in the points standings.

Only the best six points finishes counted towards the championship, with any other points earned not included in the total. Skipped points are marked in italics.

† - Porsche was declared the winner of the championship due to earning eight wins to BMW's seven.