2013 NASCAR Nationwide Series

The 2013 NASCAR Nationwide Series was the 32nd season of semi-professional 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.

The 2013 season sees significant driver changes. With Nationwide champion Ricky Stenhouse, Jr. moving to the Sprint Cup Series with Roush Fenway Racing, Trevor Bayne, who ran a partial Nationwide schedule with Roush, inherited the No. 6 Ford for 2013. Runner-up Elliott Sadler announced his departure from Richard Childress Racing in 2012, and signed to drive for Joe Gibbs Racing full-time in the No. 11 Toyota. In addition to Sadler, Brian Vickers, after running a partial Cup schedule, return to the Nationwide Series full-time for the first time since his championship season in 2003. JGR's former driver Brian Scott took over Elliott Sadler's old No. 2 ride at RCR, signing a multi-year deal with the team. Truck Series driver Parker Kligerman signed with Kyle Busch Motorsports for 2013, driving the No. 77 Toyota for the season. Former Sprint Cup driver Regan Smith drove the full season for JR Motorsports in the No. 7, replacing Danica Patrick. Kasey Kahne and his USAC driver Brad Sweet also moved from Turner Motorsports to JRM, sharing the No. 5 Camaro for the season. TriStar Motorsports fielded a car for Louisiana native Hal Martin, running for Rookie of the Year. Jeffrey Earnhardt, after driving a limited schedule, drove the full season with Go Green Racing.