The 2013 NASCAR Nationwide Series was the 32nd season of the NASCAR Nationwide Series, the second-tier professional stock car racing series sanctioned by NASCAR in the United States. The season was contested over thirty-three races and started on February 23, 2013 at Daytona International Speedway, with the DRIVE4COPD 300, and ended on November 16 with the Ford EcoBoost 300 at Homestead-Miami Speedway. Austin Dillon of Richard Childress Racing won the Drivers' Championship, becoming the first driver in the three major NASCAR series to do so without recording a win. The No. 22 entry of Penske Racing won the Owners' Championship, while Ford won the Manufacturers' Championship.

Austin Reed Dillon, self-nicknamed "the Ace", is an American professional stock car racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 3 Chevrolet Camaro ZL1 for Richard Childress Racing. He is the grandson of RCR team owner Richard Childress, the older brother of Ty Dillon who competes full-time in the NASCAR Craftsman Truck Series, and the son of Mike Dillon, a former racing driver who currently works as RCR's general manager.