The 55th Rolex 24 at Daytona was an International Motor Sports Association (IMSA)-sanctioned 24-hour automobile endurance race for prototype and grand touring sports cars held at the Daytona International Speedway combined road course in Daytona Beach, Florida from January 28 to 29, 2017. It was the first of twelve events in the 2017 IMSA SportsCar Championship, the 55th 24 Hours of Daytona, and the first in the four-round North American Endurance Cup.