The 2017 Trans-Am Series was the 49th running of the Sports Car Club of America's Trans-Am Series, and consisted of 13 races. The Detroit race was for TA and TA2 only, and the Circuit of the Americas race was a shared race.
The rules set from the end of the 2016 season featured four classes: TA, TA2, TA3, and TA4 was retained for 2017.
A separate "West Coast" championship with 3 races separate from the main championship and one round shared with the main championship, the race at Circuit of the Americas was contested for the first time ever.