The 1979 NASCAR Winston Cup Series was the 31st season of professional stock car racing in the United States and the 8th modern-era Cup series. It began on Sunday, January 14, and ended on Sunday, November 18. Richard Petty won his seventh and final Winston Cup championship, winning by 11 points over Darrell Waltrip. Dale Earnhardt was crowned NASCAR Rookie of the Year.
The season was the last until 2006 without Rusty Wallace.