College football refers to American football played by teams of student athletes fielded by American universities, colleges, and military academies, or Canadian football played by teams of student athletes fielded by Canadian universities. It was through college football play that American football rules first gained popularity in the United States.

Modern North American football has its origins in various games, all known as "football", played at public schools in England in the mid-19th century. By the 1840s, students at Rugby School were playing a game in which players were able to pick up the ball and run with it, a sport later known as Rugby football. The game was taken to Canada by British soldiers stationed there and was soon being played at Canadian colleges.

The first documented gridiron football match was a game played at University College, a college of the University of Toronto, November 9, 1861. One of the participants in the game involving University of Toronto students was (Sir) William Mulock, later Chancellor of the school. A football club was formed at the university soon afterward, although its rules of play at this stage are unclear.