The 1958 World Sportscar Championship was a motor racing series for sportscars which ran from 26 January to 13 September 1958 and comprised six races in six countries. It was the sixth World Sportscar Championship.

The World Sportscar Championship was the world series run for sports car racing by the FIA from 1953 to 1992. The championship evolved from a small collection of the most important sportscar, endurance, and road racing events in Europe and North America with dozens of gentleman drivers at the grid to a professional racing series where the world's largest automakers spent millions of dollars per year.