The 1958 Australian Drivers' Championship was a CAMS sanctioned national motor racing title for drivers of Formula Libre cars. The title was contested over a nine race series with the winner awarded the 1958 CAMS Gold Star.
Championship points were awarded on an 8-5-3-2-1 basis to the top five finishers in each race. However, as overseas drivers were ineligible to qualify for championship points, no points were awarded for placings scored by these drivers. Similarly drivers of sports cars which on occasion raced amongst the Formula Libre cars, were not eligible for points, although Doug Whiteford's Maserati 300S appears to have been an exception.
Championship points were not awarded for the following: