College football is American football played by teams of student athletes fielded by American universities, colleges, and military academies. It was the venue through which American football first gained popularity in the United States. College football remains extremely popular today among students, alumni, and other fans of the sport.According to "Bill Stern's Favorite Football Stories" (1948), the most people ever to attend a college football game was 114,000, for the Army-Navy game in 1926. It ended in darkness, in a 21-21 tie.

Modern 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 in England were playing a game in which players were able to pick up the ball and run with it, a sport later known as Rugby union (or rugby).