1968 Trans-American Championship
The 1968 Trans-American Championship was the third running of the Sports Car Club of America's Trans-Am Series. 1968 marked the addition of the 12 Hours of Sebring and the 24 Hours of Daytona, the only year that the Trans-Am Series featured those races. The season also marked the first time that an event was held outside of the United States, when a race at Mont-Tremblant brought Trans-Am into Quebec, Canada.
The championship was open to SCCA Sedans, which were required to conform with FIA Group 1 Series Production Touring Car or Group 2 Touring Car regulations. A Manufacturers Champion was determined in both Over 2-liter and Under 2-liter classes. The titles were awarded to Chevrolet and Porsche respectively.
Championships
Points system
Points were awarded to manufacturers according to the finishing positions in each race.| 1st | 2nd | 3rd | 4th | 5th | 6th |
| 9 | 6 | 4 | 3 | 2 | 1 |
Only the highest-placed car scored points for the manufacturer and only the best 10 finishes counted towards the championship.
Drivers' championships were not awarded in Trans-Am until 1972.