The 2021 NASCAR Pinty's Series is the fifteenth season of the Pinty's Series, the national stock car racing series in Canada sanctioned by NASCAR. It began with the Frontline Workers 125 at Sunset Speedway on August 1 and concluded with the Pinty's Fall Brawl at Delaware Speedway on September 26.
Jason Hathaway entered the season as the defending drivers' champion. Louis-Philippe Dumoulin won the championship, his third in the series after previously winning the 2014 and 2018 titles.