The 1984 NASCAR Winston Cup Series was the 36th season of professional stock car racing in the United States and the 13th modern-era Cup series season. It began on Sunday, February 19 and ended on Sunday, November 18. Terry Labonte was crowned champion at the end of the season. This was the final year for Chrysler until Dodge returned in 2001.

Terrance Lee Labonte, nicknamed "Texas Terry" or "the Iceman", is an American former stock car driver. He raced from 1978 to 2014 in the former NASCAR Winston Cup and Sprint Cup Series. A two-time Cup Series champion in 1984 and 1996 and the 1989 IROC champion, he is the older brother of 2000 Cup Series champion Bobby Labonte, and the father of former Nationwide Series driver Justin Labonte. He also co-owns a Chevrolet dealership in Greensboro, North Carolina with Rick Hendrick. He appeared on the CBS series The Dukes of Hazzard in 1984, where he played an unnamed pit crew member.