The 2025 Cook Out 400 was a NASCAR Cup Series race that was held on August 16, 2025, at Richmond Raceway in Richmond, Virginia. Contested over 400 laps on the 0.75-mile (1.21 km) asphalt short track, it was the 25th race of the 2025 NASCAR Cup Series season.

Austin Dillon won the race. Alex Bowman finished 2nd, and Ryan Blaney finished 3rd. Joey Logano and Austin Cindric rounded out the top five, and Kyle Larson, Daniel Suárez, Josh Berry, Brad Keselowski, and Denny Hamlin rounded out the top ten.

Richmond Raceway (RR) is a 0.75 miles (1.21 km), D-shaped, asphalt race track located just outside Richmond, Virginia in unincorporated Henrico County. It hosts the NASCAR Cup Series, NASCAR Xfinity Series and the NASCAR Craftsman Truck Series. Known as "America's premier short track", it has formerly hosted events such as the International Race of Champions, Denny Hamlin Short Track Showdown, and the USAC sprint car series. Due to Richmond Raceway's unique "D" shape which allows drivers to reach high speeds, Richmond has long been known as a short track that races like a superspeedway. With its multiple racing grooves, and proclivity for contact Richmond is a favorite among NASCAR drivers and fans.

Kyle Busch was the fastest in the practice session with a time of 22.848 seconds and a speed of 118.172 mph (190.179 km/h).

Ryan Preece scored the pole for the race with a time of 22.244 and a speed of 121.381 mph (195.344 km/h).

Stage One Laps: 70

Stage Two Laps: 160

Stage Three Laps: 170