Dale Earnhardt Jr. is a semi-retired professional stock car racing driver. He is the son of the late Dale Earnhardt Sr., who was inducted into the NASCAR Hall of Fame. His grandfather, Ralph Earnhardt, was also a NASCAR driver.

He competes part-time in the NASCAR Xfinity Series, driving the No. 8 Chevrolet Camaro for his team JR Motorsports. Earnhardt's success at Daytona International Speedway throughout his career earned him the nickname "Pied Piper" of Daytona. He is a two-time Daytona 500 winner (2004 and 2014), and has won the Most Popular Driver Award fifteen consecutive times from 2003 to 2017. After driving the No. 8 Chevrolet Monte Carlo for Dale Earnhardt, Inc. (DEI), his father's team in the NASCAR Cup Series, for much of his early Cup career, he moved to Hendrick Motorsports to drive the No. 88 in 2008. He remained with HMS until his retirement as a full-time driver in 2017. Earnhardt retired with 26 wins in the Cup Series, a total that ranks him tied for 30th in NASCAR as of November 2020.

In April 2012, Earnhardt became a partner of the American Coalition for Clean Coal Electricity. As of 2021, Earnhardt Jr. is a team owner, author, and an analyst for NASCAR on NBC.