The 2019 Foxwoods Resort Casino 301 is a Monster Energy NASCAR Cup Series race held on July 21, 2019 at New Hampshire Motor Speedway in Loudon, New Hampshire. Contested over 301 laps on the 1.058-mile (1.703 km) speedway, it was the 20th race of the 2019 Monster Energy NASCAR Cup Series season.

The 2019 Monster Energy NASCAR Cup Series was the 71st season of NASCAR professional stock car racing in the United States, and the 48th modern-era Cup series season. The season began at Daytona International Speedway with the Advance Auto Parts Clash, the Gander RV Duel qualifying races and the 61st running of the Daytona 500. The regular season ended with the Brickyard 400 in September. The playoffs ended with the Ford EcoBoost 400 at Homestead–Miami Speedway on November 17, 2019. Joey Logano of Team Penske entered as the defending series champion.