The 2010 NASCAR Nationwide Series was the 29th season of the NASCAR Nationwide Series, the second-tier professional stock car racing series sanctioned by NASCAR in the United States. Beginning at Daytona International Speedway, the season included thirty-five races, which ended with the Ford 300 at Homestead Miami Speedway. Brad Keselowski clinched the drivers' championship during the O'Reilly Auto Parts Challenge at Texas Motor Speedway, two races before the season finale at Homestead, while Joe Gibbs won the owners' championship. Toyota won the manufacturers' championship with 240 points.