The 1999 NAIA football season was the component of the 1999 college football season organized by the National Association of Intercollegiate Athletics (NAIA) in the United States. The season's playoffs, known as the NAIA Football National Championship, culminated with the championship game on December 18, at Jim Carroll Stadium in Savannah, Tennessee. The Northwestern Oklahoma State Rangers defeated the Georgetown Tigers, 34–26, in the title game to win the program's first NAIA championship.