The NASCAR Rookie of the Year Award is presented to the first-year driver that has the best season in a NASCAR season. Each of NASCAR's national and regional touring series selects a RotY winner each year.

The 2023 NASCAR Cup Series was the 75th season for NASCAR professional stock car racing in the United States and the 52nd season for the modern-era Cup Series. The season started with the Busch Light Clash at the Los Angeles Memorial Coliseum on February 5. That race was followed by the Daytona Duel qualifying races and the 65th running of the Daytona 500 on February 19, both at Daytona International Speedway. The season ended with the NASCAR Cup Series Championship Race at Phoenix Raceway on November 5.