2025 NASCAR Xfinity Series

The 2025 NASCAR Xfinity Series was the 44th season of the NASCAR Xfinity Series, a stock car racing series sanctioned by NASCAR in the United States. The season started on February 15 with the United Rentals 300 at Daytona International Speedway and ended with the NASCAR Xfinity Series Championship Race on November 1 at Phoenix Raceway.

The 2025 season was the second season, and the first as the exclusive broadcaster, in which The CW will be televising the NASCAR Xfinity Series under NASCAR's new TV deal that will take place until 2031. This season marked the final season with Xfinity as the title sponsor of the series, as O'Reilly Auto Parts replaced the title sponsor starting next season.

Justin Allgaier of JR Motorsports entered the season as the defending series champion. Rookie Connor Zilisch won the regular season championship. At season's end, Jesse Love of Richard Childress Racing won the championship.