The 2012 NASCAR Canadian Tire Series season was the sixth season of the NASCAR Canadian Tire Series taking place in the summer of 2012.

The season composed of twelve races at eleven different venues.

The season started on May 20 at the Canadian Tire Motorsport Park with J. R. Fitzpatrick winning his first event in almost 2 years, Andrew Ranger also returned to victory lane the following week at Circuit ICAR.

Then at Barrie Speedway, Peter Shepherd III took advantage of an accident involving leaders Steve Matthews and Fitzpatrick, who were involved in an accident on a green-white-checker finish to pick up the Victory.

Points leader Kennington suffered a mechanical failure and finished down in the running order but rebounded strong winning the final two events of the year at Kawartha and Riverside capturing 2 championships in 3 years.