College football is gridiron football that is played by teams of amateur student-athletes at universities and colleges. It was through collegiate competition that gridiron football first gained popularity in the United States.
Like gridiron football generally, college football is most popular in the United States and Canada. While no single governing body exists for college football in the United States, most schools, especially those at the highest levels of play, are members of the National Collegiate Athletic Association (NCAA). In Canada, collegiate football competition is governed by U Sports for universities. The Canadian Collegiate Athletic Association (for colleges) governs soccer and other sports but not gridiron football. Other countries, such as Mexico, Japan and South Korea, also host college football leagues with modest levels of support.