The 2023 Idemitsu Mazda MX-5 Cup presented by BF Goodrich is a single-make motor racing championship, the 19th season of the Mazda MX-5 Cup and the 3rd under a new sanctioning agreement with the International Motor Sports Association (IMSA). The series began on January 25 at Daytona International Speedway, and concluded on October 13 at Michelin Raceway Road Atlanta after 14 rounds. Jared Thomas defended the driver's championship, with his team JTR Motorsports Engineering winning the entrant's championship as well. Nate Cicero from McCumbee McAleer Racing won the Rookie of The Year award.