2003 NCAA Division I AA football season

The 2003 NCAA Division I-AA football season, part of college football in the United States organized by the National Collegiate Athletic Association at the Division I Football Championship Subdivision level, began in August 2003, and concluded with the National Championship Game of the NCAA Division I Football Championship on December 19, 2003, at Finley Stadium in Chattanooga, Tennessee. The Delaware Fightin' Blue Hens won their first I-AA championship, defeating the Colgate Raiders by a final score of 40−0