The 2015 NASCAR Canadian Tire Series was the ninth season of the NASCAR Canadian Tire Series, which took place in the summer of 2015. The season consisted of 11 races at 10 different venues, of which 7 were held on ovals. It began with the Pinty's presents the Clarington 200 at Canadian Tire Motorsport Park on May 17 and ended with the Pinty's 250 at Kawartha Speedway on September 19. L. P. Dumoulin entered the season as the defending Drivers' Champion; 2015 was the final season that Canadian Tire sponsored the series, with Pinty's taking over the title sponsorship from 2016.