1991 NASCAR Coca-Cola Cup Series (Jayverse)

The 1991 NASCAR Winston Cup Season was the 43rd of professional stock car racing in the United States and the 20th modern-era Cup Season.

The 1991 season was also the final year of Buick as a full-time manufacturer in the series; Buick cars would run in limited schedules in 1992 and 1993 before leaving the series for good.